Adding upstream version 5.4.1.upstream/5.4.1 upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
author: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-04-27 21:12:04 +0000
committer: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-04-27 21:12:04 +0000
commit: eac54b7c4aec25060d7bd856f7cdc290943d6aae (patch)
tree: 9a6d81c9f88df4698e746d63d14ddafeddd918b8 /tests
parent: Initial commit. (diff)
download: xz-utils-eac54b7c4aec25060d7bd856f7cdc290943d6aae.tar.xz
xz-utils-eac54b7c4aec25060d7bd856f7cdc290943d6aae.zip
130 files changed, 7997 insertions, 0 deletions
diff --git a/tests/Makefile.am b/tests/Makefile.am
new file mode 100644
index 0000000..b1a2378
--- /dev/null
+++ b/tests/Makefile.am
@@ -0,0 +1,79 @@
+##
+## Author: Lasse Collin
+##
+## This file has been put into the public domain.
+## You can do whatever you want with this file.
+##
+
+EXTRA_DIST = \
+	files \
+	ossfuzz \
+	tuktest.h \
+	tests.h \
+	test_files.sh \
+	test_compress.sh \
+	test_compress_prepared_bcj_sparc \
+	test_compress_prepared_bcj_x86 \
+	test_compress_generated_abc \
+	test_compress_generated_random \
+	test_compress_generated_text \
+	test_scripts.sh \
+	bcj_test.c \
+	compress_prepared_bcj_sparc \
+	compress_prepared_bcj_x86 \
+	xzgrep_expected_output
+
+AM_CPPFLAGS = \
+	-I$(top_srcdir)/src/common \
+	-I$(top_srcdir)/src/liblzma/api \
+	-I$(top_srcdir)/src/liblzma \
+	-I$(top_builddir)/lib
+
+LDADD = $(top_builddir)/src/liblzma/liblzma.la
+
+if COND_GNULIB
+LDADD += $(top_builddir)/lib/libgnu.a
+endif
+
+LDADD += $(LTLIBINTL)
+
+check_PROGRAMS = \
+	create_compress_files \
+	test_check \
+	test_hardware \
+	test_stream_flags \
+	test_filter_flags \
+	test_block_header \
+	test_index \
+	test_index_hash \
+	test_bcj_exact_size \
+	test_memlimit \
+	test_lzip_decoder \
+	test_vli
+
+TESTS = \
+	test_check \
+	test_hardware \
+	test_stream_flags \
+	test_filter_flags \
+	test_block_header \
+	test_index \
+	test_index_hash \
+	test_bcj_exact_size \
+	test_memlimit \
+	test_lzip_decoder \
+	test_vli \
+	test_files.sh \
+	test_compress_prepared_bcj_sparc \
+	test_compress_prepared_bcj_x86 \
+	test_compress_generated_abc \
+	test_compress_generated_random \
+	test_compress_generated_text
+
+if COND_SCRIPTS
+TESTS += test_scripts.sh
+endif
+
+clean-local:
+	-rm -f compress_generated_* \
+		xzgrep_test_output xzgrep_test_1.xz xzgrep_test_2.xz
diff --git a/tests/Makefile.in b/tests/Makefile.in
new file mode 100644
index 0000000..c329d00
--- /dev/null
+++ b/tests/Makefile.in
@@ -0,0 +1,1337 @@
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+	test_compress_generated_abc \
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+	test_compress_generated_text \
+	test_scripts.sh \
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+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+# Recover from deleted '.trs' file; this should ensure that
+# "rm -f foo.log; make foo.trs" re-run 'foo.test', and re-create
+# both 'foo.log' and 'foo.trs'.  Break the recipe in two subshells
+# to avoid problems with "make -n".
+.log.trs:
+	rm -f $< $@
+	$(MAKE) $(AM_MAKEFLAGS) $<
+
+# Leading 'am--fnord' is there to ensure the list of targets does not
+# expand to empty, as could happen e.g. with make check TESTS=''.
+am--fnord $(TEST_LOGS) $(TEST_LOGS:.log=.trs): $(am__force_recheck)
+am--force-recheck:
+	@:
+
+$(TEST_SUITE_LOG): $(TEST_LOGS)
+	@$(am__set_TESTS_bases); \
+	am__f_ok () { test -f "$$1" && test -r "$$1"; }; \
+	redo_bases=`for i in $$bases; do \
+	              am__f_ok $$i.trs && am__f_ok $$i.log || echo $$i; \
+	            done`; \
+	if test -n "$$redo_bases"; then \
+	  redo_logs=`for i in $$redo_bases; do echo $$i.log; done`; \
+	  redo_results=`for i in $$redo_bases; do echo $$i.trs; done`; \
+	  if $(am__make_dryrun); then :; else \
+	    rm -f $$redo_logs && rm -f $$redo_results || exit 1; \
+	  fi; \
+	fi; \
+	if test -n "$$am__remaking_logs"; then \
+	  echo "fatal: making $(TEST_SUITE_LOG): possible infinite" \
+	       "recursion detected" >&2; \
+	elif test -n "$$redo_logs"; then \
+	  am__remaking_logs=yes $(MAKE) $(AM_MAKEFLAGS) $$redo_logs; \
+	fi; \
+	if $(am__make_dryrun); then :; else \
+	  st=0;  \
+	  errmsg="fatal: making $(TEST_SUITE_LOG): failed to create"; \
+	  for i in $$redo_bases; do \
+	    test -f $$i.trs && test -r $$i.trs \
+	      || { echo "$$errmsg $$i.trs" >&2; st=1; }; \
+	    test -f $$i.log && test -r $$i.log \
+	      || { echo "$$errmsg $$i.log" >&2; st=1; }; \
+	  done; \
+	  test $$st -eq 0 || exit 1; \
+	fi
+	@$(am__sh_e_setup); $(am__tty_colors); $(am__set_TESTS_bases); \
+	ws='[ 	]'; \
+	results=`for b in $$bases; do echo $$b.trs; done`; \
+	test -n "$$results" || results=/dev/null; \
+	all=`  grep "^$$ws*:test-result:"           $$results | wc -l`; \
+	pass=` grep "^$$ws*:test-result:$$ws*PASS"  $$results | wc -l`; \
+	fail=` grep "^$$ws*:test-result:$$ws*FAIL"  $$results | wc -l`; \
+	skip=` grep "^$$ws*:test-result:$$ws*SKIP"  $$results | wc -l`; \
+	xfail=`grep "^$$ws*:test-result:$$ws*XFAIL" $$results | wc -l`; \
+	xpass=`grep "^$$ws*:test-result:$$ws*XPASS" $$results | wc -l`; \
+	error=`grep "^$$ws*:test-result:$$ws*ERROR" $$results | wc -l`; \
+	if test `expr $$fail + $$xpass + $$error` -eq 0; then \
+	  success=true; \
+	else \
+	  success=false; \
+	fi; \
+	br='==================='; br=$$br$$br$$br$$br; \
+	result_count () \
+	{ \
+	    if test x"$$1" = x"--maybe-color"; then \
+	      maybe_colorize=yes; \
+	    elif test x"$$1" = x"--no-color"; then \
+	      maybe_colorize=no; \
+	    else \
+	      echo "$@: invalid 'result_count' usage" >&2; exit 4; \
+	    fi; \
+	    shift; \
+	    desc=$$1 count=$$2; \
+	    if test $$maybe_colorize = yes && test $$count -gt 0; then \
+	      color_start=$$3 color_end=$$std; \
+	    else \
+	      color_start= color_end=; \
+	    fi; \
+	    echo "$${color_start}# $$desc $$count$${color_end}"; \
+	}; \
+	create_testsuite_report () \
+	{ \
+	  result_count $$1 "TOTAL:" $$all   "$$brg"; \
+	  result_count $$1 "PASS: " $$pass  "$$grn"; \
+	  result_count $$1 "SKIP: " $$skip  "$$blu"; \
+	  result_count $$1 "XFAIL:" $$xfail "$$lgn"; \
+	  result_count $$1 "FAIL: " $$fail  "$$red"; \
+	  result_count $$1 "XPASS:" $$xpass "$$red"; \
+	  result_count $$1 "ERROR:" $$error "$$mgn"; \
+	}; \
+	{								\
+	  echo "$(PACKAGE_STRING): $(subdir)/$(TEST_SUITE_LOG)" |	\
+	    $(am__rst_title);						\
+	  create_testsuite_report --no-color;				\
+	  echo;								\
+	  echo ".. contents:: :depth: 2";				\
+	  echo;								\
+	  for b in $$bases; do echo $$b; done				\
+	    | $(am__create_global_log);					\
+	} >$(TEST_SUITE_LOG).tmp || exit 1;				\
+	mv $(TEST_SUITE_LOG).tmp $(TEST_SUITE_LOG);			\
+	if $$success; then						\
+	  col="$$grn";							\
+	 else								\
+	  col="$$red";							\
+	  test x"$$VERBOSE" = x || cat $(TEST_SUITE_LOG);		\
+	fi;								\
+	echo "$${col}$$br$${std}"; 					\
+	echo "$${col}Testsuite summary"$(AM_TESTSUITE_SUMMARY_HEADER)"$${std}";	\
+	echo "$${col}$$br$${std}"; 					\
+	create_testsuite_report --maybe-color;				\
+	echo "$$col$$br$$std";						\
+	if $$success; then :; else					\
+	  echo "$${col}See $(subdir)/$(TEST_SUITE_LOG)$${std}";		\
+	  if test -n "$(PACKAGE_BUGREPORT)"; then			\
+	    echo "$${col}Please report to $(PACKAGE_BUGREPORT)$${std}";	\
+	  fi;								\
+	  echo "$$col$$br$$std";					\
+	fi;								\
+	$$success || exit 1
+
+check-TESTS: $(check_PROGRAMS)
+	@list='$(RECHECK_LOGS)';           test -z "$$list" || rm -f $$list
+	@list='$(RECHECK_LOGS:.log=.trs)'; test -z "$$list" || rm -f $$list
+	@test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+	@set +e; $(am__set_TESTS_bases); \
+	log_list=`for i in $$bases; do echo $$i.log; done`; \
+	trs_list=`for i in $$bases; do echo $$i.trs; done`; \
+	log_list=`echo $$log_list`; trs_list=`echo $$trs_list`; \
+	$(MAKE) $(AM_MAKEFLAGS) $(TEST_SUITE_LOG) TEST_LOGS="$$log_list"; \
+	exit $$?;
+recheck: all $(check_PROGRAMS)
+	@test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+	@set +e; $(am__set_TESTS_bases); \
+	bases=`for i in $$bases; do echo $$i; done \
+	         | $(am__list_recheck_tests)` || exit 1; \
+	log_list=`for i in $$bases; do echo $$i.log; done`; \
+	log_list=`echo $$log_list`; \
+	$(MAKE) $(AM_MAKEFLAGS) $(TEST_SUITE_LOG) \
+	        am__force_recheck=am--force-recheck \
+	        TEST_LOGS="$$log_list"; \
+	exit $$?
+test_check.log: test_check$(EXEEXT)
+	@p='test_check$(EXEEXT)'; \
+	b='test_check'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+test_hardware.log: test_hardware$(EXEEXT)
+	@p='test_hardware$(EXEEXT)'; \
+	b='test_hardware'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+test_stream_flags.log: test_stream_flags$(EXEEXT)
+	@p='test_stream_flags$(EXEEXT)'; \
+	b='test_stream_flags'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+test_filter_flags.log: test_filter_flags$(EXEEXT)
+	@p='test_filter_flags$(EXEEXT)'; \
+	b='test_filter_flags'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+test_block_header.log: test_block_header$(EXEEXT)
+	@p='test_block_header$(EXEEXT)'; \
+	b='test_block_header'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+test_index.log: test_index$(EXEEXT)
+	@p='test_index$(EXEEXT)'; \
+	b='test_index'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+test_index_hash.log: test_index_hash$(EXEEXT)
+	@p='test_index_hash$(EXEEXT)'; \
+	b='test_index_hash'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+test_bcj_exact_size.log: test_bcj_exact_size$(EXEEXT)
+	@p='test_bcj_exact_size$(EXEEXT)'; \
+	b='test_bcj_exact_size'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+test_memlimit.log: test_memlimit$(EXEEXT)
+	@p='test_memlimit$(EXEEXT)'; \
+	b='test_memlimit'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+test_lzip_decoder.log: test_lzip_decoder$(EXEEXT)
+	@p='test_lzip_decoder$(EXEEXT)'; \
+	b='test_lzip_decoder'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+test_vli.log: test_vli$(EXEEXT)
+	@p='test_vli$(EXEEXT)'; \
+	b='test_vli'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+test_files.sh.log: test_files.sh
+	@p='test_files.sh'; \
+	b='test_files.sh'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+test_compress_prepared_bcj_sparc.log: test_compress_prepared_bcj_sparc
+	@p='test_compress_prepared_bcj_sparc'; \
+	b='test_compress_prepared_bcj_sparc'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+test_compress_prepared_bcj_x86.log: test_compress_prepared_bcj_x86
+	@p='test_compress_prepared_bcj_x86'; \
+	b='test_compress_prepared_bcj_x86'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+test_compress_generated_abc.log: test_compress_generated_abc
+	@p='test_compress_generated_abc'; \
+	b='test_compress_generated_abc'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+test_compress_generated_random.log: test_compress_generated_random
+	@p='test_compress_generated_random'; \
+	b='test_compress_generated_random'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+test_compress_generated_text.log: test_compress_generated_text
+	@p='test_compress_generated_text'; \
+	b='test_compress_generated_text'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+test_scripts.sh.log: test_scripts.sh
+	@p='test_scripts.sh'; \
+	b='test_scripts.sh'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+.test.log:
+	@p='$<'; \
+	$(am__set_b); \
+	$(am__check_pre) $(TEST_LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_TEST_LOG_DRIVER_FLAGS) $(TEST_LOG_DRIVER_FLAGS) -- $(TEST_LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+@am__EXEEXT_TRUE@.test$(EXEEXT).log:
+@am__EXEEXT_TRUE@	@p='$<'; \
+@am__EXEEXT_TRUE@	$(am__set_b); \
+@am__EXEEXT_TRUE@	$(am__check_pre) $(TEST_LOG_DRIVER) --test-name "$$f" \
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+@am__EXEEXT_TRUE@	$(am__common_driver_flags) $(AM_TEST_LOG_DRIVER_FLAGS) $(TEST_LOG_DRIVER_FLAGS) -- $(TEST_LOG_COMPILE) \
+@am__EXEEXT_TRUE@	"$$tst" $(AM_TESTS_FD_REDIRECT)
+distdir: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+	$(MAKE) $(AM_MAKEFLAGS) $(check_PROGRAMS)
+	$(MAKE) $(AM_MAKEFLAGS) check-TESTS
+check: check-am
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+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
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+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+	-test -z "$(TEST_LOGS)" || rm -f $(TEST_LOGS)
+	-test -z "$(TEST_LOGS:.log=.trs)" || rm -f $(TEST_LOGS:.log=.trs)
+	-test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-checkPROGRAMS clean-generic clean-libtool clean-local \
+	mostlyclean-am
+
+distclean: distclean-am
+		-rm -f ./$(DEPDIR)/create_compress_files.Po
+	-rm -f ./$(DEPDIR)/test_bcj_exact_size.Po
+	-rm -f ./$(DEPDIR)/test_block_header.Po
+	-rm -f ./$(DEPDIR)/test_check.Po
+	-rm -f ./$(DEPDIR)/test_filter_flags.Po
+	-rm -f ./$(DEPDIR)/test_hardware.Po
+	-rm -f ./$(DEPDIR)/test_index.Po
+	-rm -f ./$(DEPDIR)/test_index_hash.Po
+	-rm -f ./$(DEPDIR)/test_lzip_decoder.Po
+	-rm -f ./$(DEPDIR)/test_memlimit.Po
+	-rm -f ./$(DEPDIR)/test_stream_flags.Po
+	-rm -f ./$(DEPDIR)/test_vli.Po
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
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+dvi: dvi-am
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+dvi-am:
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+html: html-am
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+info: info-am
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+install-ps-am:
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+installcheck-am:
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+maintainer-clean: maintainer-clean-am
+		-rm -f ./$(DEPDIR)/create_compress_files.Po
+	-rm -f ./$(DEPDIR)/test_bcj_exact_size.Po
+	-rm -f ./$(DEPDIR)/test_block_header.Po
+	-rm -f ./$(DEPDIR)/test_check.Po
+	-rm -f ./$(DEPDIR)/test_filter_flags.Po
+	-rm -f ./$(DEPDIR)/test_hardware.Po
+	-rm -f ./$(DEPDIR)/test_index.Po
+	-rm -f ./$(DEPDIR)/test_index_hash.Po
+	-rm -f ./$(DEPDIR)/test_lzip_decoder.Po
+	-rm -f ./$(DEPDIR)/test_memlimit.Po
+	-rm -f ./$(DEPDIR)/test_stream_flags.Po
+	-rm -f ./$(DEPDIR)/test_vli.Po
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
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+mostlyclean: mostlyclean-am
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+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
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+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: check-am install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-TESTS \
+	check-am clean clean-checkPROGRAMS clean-generic clean-libtool \
+	clean-local cscopelist-am ctags ctags-am distclean \
+	distclean-compile distclean-generic distclean-libtool \
+	distclean-tags distdir dvi dvi-am html html-am info info-am \
+	install install-am install-data install-data-am install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am recheck tags tags-am uninstall \
+	uninstall-am
+
+.PRECIOUS: Makefile
+
+
+clean-local:
+	-rm -f compress_generated_* \
+		xzgrep_test_output xzgrep_test_1.xz xzgrep_test_2.xz
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/tests/bcj_test.c b/tests/bcj_test.c
new file mode 100644
index 0000000..05de38a
--- /dev/null
+++ b/tests/bcj_test.c
@@ -0,0 +1,65 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       bcj_test.c
+/// \brief      Source code of compress_prepared_bcj_*
+///
+/// This is a simple program that should make the compiler to generate
+/// PC-relative branches, jumps, and calls. The compiled files can then
+/// be used to test the branch conversion filters. Note that this program
+/// itself does nothing useful.
+///
+/// Compiling: gcc -std=c99 -fPIC -c bcj_test.c
+/// Don't optimize or strip.
+//
+//  Author:     Lasse Collin
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+extern int jump(int a, int b);
+
+
+extern int
+call(int a, int b)
+{
+	if (a < b)
+		a = jump(a, b);
+
+	return a;
+}
+
+
+extern int
+jump(int a, int b)
+{
+	// The loop generates conditional jump backwards.
+	while (1) {
+		if (a < b) {
+			a *= 2;
+			a += 3 * b;
+			break;
+		} else {
+			// Put enough code here to prevent JMP SHORT on x86.
+			a += b;
+			a /= 2;
+			b += b % 5;
+			a -= b / 3;
+			b = 2 * b + a - 1;
+			a *= b + a + 1;
+			b += a - 1;
+			a += b * 2 - a / 5;
+		}
+	}
+
+	return a;
+}
+
+
+int
+main(int argc, char **argv)
+{
+	int a = call(argc, argc + 1);
+	return a == 0;
+}
diff --git a/tests/compress_prepared_bcj_sparc b/tests/compress_prepared_bcj_sparc
new file mode 100644
index 0000000..86ea7dd
--- /dev/null
+++ b/tests/compress_prepared_bcj_sparc
diff --git a/tests/compress_prepared_bcj_x86 b/tests/compress_prepared_bcj_x86
new file mode 100644
index 0000000..bcc546f
--- /dev/null
+++ b/tests/compress_prepared_bcj_x86
diff --git a/tests/create_compress_files.c b/tests/create_compress_files.c
new file mode 100644
index 0000000..76aa3e3
--- /dev/null
+++ b/tests/create_compress_files.c
@@ -0,0 +1,163 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       create_compress_files.c
+/// \brief      Creates bunch of test files to be compressed
+///
+/// Using a test file generator program saves space in the source code
+/// package considerably.
+//
+//  Author:     Lasse Collin
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include "sysdefs.h"
+#include <stdio.h>
+
+
+// If a command-line argument was given, only create the file if its
+// name was specified on the command line. If no args were given then
+// all files are created.
+//
+// Avoid re-creating the test files every time the tests are run.
+#define maybe_create_test(argc, argv, name) \
+do { \
+	if ((argc < 2 || strcmp(argv[1], "compress_generated_" #name) == 0) \
+			&& !file_exists("compress_generated_" #name)) { \
+		FILE *file = file_create("compress_generated_" #name); \
+		write_ ## name(file); \
+		file_finish(file, "compress_generated_" #name); \
+	} \
+} while (0)
+
+
+static bool
+file_exists(const char *filename)
+{
+	// Trying to be somewhat portable by avoiding stat().
+	FILE *file = fopen(filename, "rb");
+	bool ret;
+
+	if (file != NULL) {
+		fclose(file);
+		ret = true;
+	} else {
+		ret = false;
+	}
+
+	return ret;
+}
+
+
+static FILE *
+file_create(const char *filename)
+{
+	FILE *file = fopen(filename, "wb");
+
+	if (file == NULL) {
+		perror(filename);
+		exit(EXIT_FAILURE);
+	}
+
+	return file;
+}
+
+
+static void
+file_finish(FILE *file, const char *filename)
+{
+	const bool ferror_fail = ferror(file);
+	const bool fclose_fail = fclose(file);
+
+	if (ferror_fail || fclose_fail) {
+		perror(filename);
+		exit(EXIT_FAILURE);
+	}
+}
+
+
+// File that repeats "abc\n" a few thousand times. This is targeted
+// especially at Subblock filter's run-length encoder.
+static void
+write_abc(FILE *file)
+{
+	for (size_t i = 0; i < 12345; ++i)
+		if (fwrite("abc\n", 4, 1, file) != 1)
+			exit(EXIT_FAILURE);
+}
+
+
+// File that doesn't compress. We always use the same random seed to
+// generate identical files on all systems.
+static void
+write_random(FILE *file)
+{
+	uint32_t n = 5;
+
+	for (size_t i = 0; i < 123456; ++i) {
+		n = 101771 * n + 71777;
+
+		putc((uint8_t)(n), file);
+		putc((uint8_t)(n >> 8), file);
+		putc((uint8_t)(n >> 16), file);
+		putc((uint8_t)(n >> 24), file);
+	}
+}
+
+
+// Text file
+static void
+write_text(FILE *file)
+{
+	static const char *lorem[] = {
+		"Lorem", "ipsum", "dolor", "sit", "amet,", "consectetur",
+		"adipisicing", "elit,", "sed", "do", "eiusmod", "tempor",
+		"incididunt", "ut", "labore", "et", "dolore", "magna",
+		"aliqua.", "Ut", "enim", "ad", "minim", "veniam,", "quis",
+		"nostrud", "exercitation", "ullamco", "laboris", "nisi",
+		"ut", "aliquip", "ex", "ea", "commodo", "consequat.",
+		"Duis", "aute", "irure", "dolor", "in", "reprehenderit",
+		"in", "voluptate", "velit", "esse", "cillum", "dolore",
+		"eu", "fugiat", "nulla", "pariatur.", "Excepteur", "sint",
+		"occaecat", "cupidatat", "non", "proident,", "sunt", "in",
+		"culpa", "qui", "officia", "deserunt", "mollit", "anim",
+		"id", "est", "laborum."
+	};
+
+	// Let the first paragraph be the original text.
+	for (size_t w = 0; w < ARRAY_SIZE(lorem); ++w) {
+		fprintf(file, "%s ", lorem[w]);
+
+		if (w % 7 == 6)
+			fprintf(file, "\n");
+	}
+
+	// The rest shall be (hopefully) meaningless combinations of
+	// the same words.
+	uint32_t n = 29;
+
+	for (size_t p = 0; p < 500; ++p) {
+		fprintf(file, "\n\n");
+
+		for (size_t w = 0; w < ARRAY_SIZE(lorem); ++w) {
+			n = 101771 * n + 71777;
+
+			fprintf(file, "%s ", lorem[n % ARRAY_SIZE(lorem)]);
+
+			if (w % 7 == 6)
+				fprintf(file, "\n");
+		}
+	}
+}
+
+
+int
+main(int argc, char **argv)
+{
+	maybe_create_test(argc, argv, abc);
+	maybe_create_test(argc, argv, random);
+	maybe_create_test(argc, argv, text);
+	return EXIT_SUCCESS;
+}
diff --git a/tests/files/README b/tests/files/README
new file mode 100644
index 0000000..119cac4
--- /dev/null
+++ b/tests/files/README
@@ -0,0 +1,409 @@
+
+.xz and .lzma Test Files
+------------------------
+
+0. Introduction
+
+    This directory contains bunch of files to test handling of .xz,
+    .lzma (LZMA_Alone), and .lz (lzip) files in decoder implementations.
+    Many of the files have been created by hand with a hex editor, thus
+    there is no better "source code" than the files themselves. All the
+    test files and this README have been put into the public domain.
+
+
+1. File Types
+
+    Good files (good-*) must decode successfully without requiring
+    a lot of CPU time or RAM.
+
+    Unsupported files (unsupported-*) are good files, but headers
+    indicate features not supported by the current file format
+    specification.
+
+    Bad files (bad-*) must cause the decoder to give an error. Like
+    with the good files, these files must not require a lot of CPU
+    time or RAM before they get detected to be broken.
+
+
+2. Descriptions of Individual .xz Files
+
+2.1. Good Files
+
+    good-0-empty.xz has one Stream with no Blocks.
+
+    good-0pad-empty.xz has one Stream with no Blocks followed by
+    four-byte Stream Padding.
+
+    good-0cat-empty.xz has two zero-Block Streams concatenated without
+    Stream Padding.
+
+    good-0catpad-empty.xz has two zero-Block Streams concatenated with
+    four-byte Stream Padding between the Streams.
+
+    good-1-check-none.xz has one Stream with one Block with two
+    uncompressed LZMA2 chunks and no integrity check.
+
+    good-1-check-crc32.xz has one Stream with one Block with two
+    uncompressed LZMA2 chunks and CRC32 check.
+
+    good-1-check-crc64.xz is like good-1-check-crc32.xz but with CRC64.
+
+    good-1-check-sha256.xz is like good-1-check-crc32.xz but with
+    SHA256.
+
+    good-2-lzma2.xz has one Stream with two Blocks with one uncompressed
+    LZMA2 chunk in each Block.
+
+    good-1-block_header-1.xz has both Compressed Size and Uncompressed
+    Size in the Block Header. This has also four extra bytes of Header
+    Padding.
+
+    good-1-block_header-2.xz has known Compressed Size.
+
+    good-1-block_header-3.xz has known Uncompressed Size.
+
+    good-1-delta-lzma2.tiff.xz is an image file that compresses
+    better with Delta+LZMA2 than with plain LZMA2.
+
+    good-1-x86-lzma2.xz uses the x86 filter (BCJ) and LZMA2. The
+    uncompressed file is compress_prepared_bcj_x86 found from the tests
+    directory.
+
+    good-1-sparc-lzma2.xz uses the SPARC filter and LZMA2. The
+    uncompressed file is compress_prepared_bcj_sparc found from the tests
+    directory.
+
+    good-1-arm64-lzma2-1.xz uses the ARM64 filter and LZMA2. The
+    uncompressed data is constructed so that it tests integer
+    wrap around and sign extension.
+
+    good-1-arm64-lzma2-2.xz is like good-1-arm64-lzma2-1.xz but with
+    non-zero start offset. XZ Embedded doesn't support this file.
+
+    good-1-lzma2-1.xz has two LZMA2 chunks, of which the second sets
+    new properties.
+
+    good-1-lzma2-2.xz has two LZMA2 chunks, of which the second resets
+    the state without specifying new properties.
+
+    good-1-lzma2-3.xz has two LZMA2 chunks, of which the first is
+    uncompressed and the second is LZMA. The first chunk resets dictionary
+    and the second sets new properties.
+
+    good-1-lzma2-4.xz has three LZMA2 chunks: First is LZMA, second is
+    uncompressed with dictionary reset, and third is LZMA with new
+    properties but without dictionary reset.
+
+    good-1-lzma2-5.xz has an empty LZMA2 stream with only the end of
+    payload marker. XZ Utils 5.0.1 and older incorrectly see this file
+    as corrupt.
+
+    good-1-3delta-lzma2.xz has three Delta filters and LZMA2.
+
+    good-1-empty-bcj-lzma2.xz has an empty Block that uses PowerPC BCJ
+    and LZMA2. liblzma from XZ Utils 5.0.1 and older may incorrectly
+    return LZMA_BUF_ERROR in some cases. See commit message
+    d8db706acb8316f9861abd432cfbe001dd6d0c5c for the details.
+
+
+2.2. Unsupported Files
+
+    unsupported-check.xz uses Check ID 0x02 which isn't supported by
+    the current version of the file format. It is implementation-defined
+    how this file handled (it may reject it, or decode it possibly with
+    a warning).
+
+    unsupported-block_header.xz has a non-null byte in Header Padding,
+    which may indicate presence of a new unsupported field.
+
+    unsupported-filter_flags-1.xz has unsupported Filter ID 0x7F.
+
+    unsupported-filter_flags-2.xz specifies only Delta filter in the
+    List of Filter Flags, but Delta isn't allowed as the last filter in
+    the chain. It could be a little more correct to detect this file as
+    corrupt instead of unsupported, but saying it is unsupported is
+    simpler in case of liblzma.
+
+    unsupported-filter_flags-3.xz specifies two LZMA2 filters in the
+    List of Filter Flags. LZMA2 is allowed only as the last filter in the
+    chain. It could be a little more correct to detect this file as
+    corrupt instead of unsupported, but saying it is unsupported is
+    simpler in case of liblzma.
+
+
+2.3. Bad Files
+
+    bad-0pad-empty.xz has one Stream with no Blocks followed by
+    five-byte Stream Padding. Stream Padding must be a multiple of four
+    bytes, thus this file is corrupt.
+
+    bad-0catpad-empty.xz has two zero-Block Streams concatenated with
+    five-byte Stream Padding between the Streams.
+
+    bad-0cat-alone.xz is good-0-empty.xz concatenated with an empty
+    LZMA_Alone file.
+
+    bad-0cat-header_magic.xz is good-0cat-empty.xz but with one byte
+    wrong in the Header Magic Bytes field of the second Stream. liblzma
+    gives LZMA_DATA_ERROR for this. (LZMA_FORMAT_ERROR is used only if
+    the first Stream of a file has invalid Header Magic Bytes.)
+
+    bad-0-header_magic.xz is good-0-empty.xz but with one byte wrong
+    in the Header Magic Bytes field. liblzma gives LZMA_FORMAT_ERROR for
+    this.
+
+    bad-0-footer_magic.xz is good-0-empty.xz but with one byte wrong
+    in the Footer Magic Bytes field. liblzma gives LZMA_DATA_ERROR for
+    this.
+
+    bad-0-empty-truncated.xz is good-0-empty.xz without the last byte
+    of the file.
+
+    bad-0-nonempty_index.xz has no Blocks but Index claims that there is
+    one Block.
+
+    bad-0-backward_size.xz has wrong Backward Size in Stream Footer.
+
+    bad-1-stream_flags-1.xz has different Stream Flags in Stream Header
+    and Stream Footer.
+
+    bad-1-stream_flags-2.xz has wrong CRC32 in Stream Header.
+
+    bad-1-stream_flags-3.xz has wrong CRC32 in Stream Footer.
+
+    bad-1-vli-1.xz has two-byte variable-length integer in the
+    Uncompressed Size field in Block Header while one-byte would be enough
+    for that value. It's important that the file gets rejected due to too
+    big integer encoding instead of due to Uncompressed Size not matching
+    the value stored in the Block Header. That is, the decoder must not
+    try to decode the Compressed Data field.
+
+    bad-1-vli-2.xz has ten-byte variable-length integer as Uncompressed
+    Size in Block Header. It's important that the file gets rejected due
+    to too big integer encoding instead of due to Uncompressed Size not
+    matching the value stored in the Block Header. That is, the decoder
+    must not try to decode the Compressed Data field.
+
+    bad-1-block_header-1.xz has Block Header that ends in the middle of
+    the Filter Flags field.
+
+    bad-1-block_header-2.xz has Block Header that has Compressed Size and
+    Uncompressed Size but no List of Filter Flags field.
+
+    bad-1-block_header-3.xz has wrong CRC32 in Block Header.
+
+    bad-1-block_header-4.xz has too big Compressed Size in Block Header
+    (2^63 - 1 bytes while maximum is a little less, because the whole
+    Block must stay smaller than 2^63). It's important that the file
+    gets rejected due to invalid Compressed Size value; the decoder
+    must not try decoding the Compressed Data field.
+
+    bad-1-block_header-5.xz has zero as Compressed Size in Block Header.
+
+    bad-1-block_header-6.xz has corrupt Block Header which may crash
+    xz -lvv in XZ Utils 5.0.3 and earlier. It was fixed in the commit
+    c0297445064951807803457dca1611b3c47e7f0f.
+
+    bad-2-index-1.xz has wrong Unpadded Sizes in Index.
+
+    bad-2-index-2.xz has wrong Uncompressed Sizes in Index.
+
+    bad-2-index-3.xz has non-null byte in Index Padding.
+
+    bad-2-index-4.xz wrong CRC32 in Index.
+
+    bad-2-index-5.xz has zero as Unpadded Size. It is important that the
+    file gets rejected specifically due to Unpadded Size having an invalid
+    value.
+
+    bad-3-index-uncomp-overflow.xz has Index whose Uncompressed Size
+    fields have huge values whose sum exceeds the maximum allowed size
+    of 2^63 - 1 bytes. In this file the sum is exactly 2^64.
+    lzma_index_append() in liblzma <= 5.2.6 lacks the integer overflow
+    check for the uncompressed size and thus doesn't catch the error
+    when decoding the Index field in this file. This makes "xz -l"
+    not detect the error and will display 0 as the uncompressed size.
+    Note that regular decompression isn't affected by this bug because
+    it uses lzma_index_hash_append() instead.
+
+    bad-2-compressed_data_padding.xz has non-null byte in the padding of
+    the Compressed Data field of the first Block.
+
+    bad-1-check-crc32.xz has wrong Check (CRC32).
+
+    bad-1-check-crc32-2.xz has Compressed Size and Uncompressed Size in
+    Block Header but wrong Check (CRC32) in the actual data. This file
+    differs by one byte from good-1-block_header-1.xz: the last byte of
+    the Check field is wrong. This file is useful for testing error
+    detection in the threaded decoder when a worker thread is configured
+    to pass input one byte at a time to the Block decoder.
+
+    bad-1-check-crc64.xz has wrong Check (CRC64).
+
+    bad-1-check-sha256.xz has wrong Check (SHA-256).
+
+    bad-1-lzma2-1.xz has LZMA2 stream whose first chunk (uncompressed)
+    doesn't reset the dictionary.
+
+    bad-1-lzma2-2.xz has two LZMA2 chunks, of which the second chunk
+    indicates dictionary reset, but the LZMA compressed data tries to
+    repeat data from the previous chunk.
+
+    bad-1-lzma2-3.xz sets new invalid properties (lc=8, lp=0, pb=0) in
+    the middle of Block.
+
+    bad-1-lzma2-4.xz has two LZMA2 chunks, of which the first is
+    uncompressed and the second is LZMA. The first chunk resets dictionary
+    as it should, but the second chunk tries to reset state without
+    specifying properties for LZMA.
+
+    bad-1-lzma2-5.xz is like bad-1-lzma2-4.xz but doesn't try to reset
+    anything in the header of the second chunk.
+
+    bad-1-lzma2-6.xz has reserved LZMA2 control byte value (0x03).
+
+    bad-1-lzma2-7.xz has EOPM at LZMA level.
+
+    bad-1-lzma2-8.xz is like good-1-lzma2-4.xz but doesn't set new
+    properties in the third LZMA2 chunk.
+
+    bad-1-lzma2-9.xz has LZMA2 stream that is truncated at the end of
+    a LZMA2 chunk (no end marker). The uncompressed size of the partial
+    LZMA2 stream exceeds the value stored in the Block Header.
+
+    bad-1-lzma2-10.xz has LZMA2 stream that, from point of view of a
+    LZMA2 decoder, extends past the end of Block (and even the end of
+    the file). Uncompressed Size in Block Header is bigger than the
+    invalid LZMA2 stream may produce (even if a decoder reads until
+    the end of the file). The Check type is None to nullify certain
+    simple size-based sanity checks in a Block decoder.
+
+    bad-1-lzma2-11.xz has LZMA2 stream that lacks the end of
+    payload marker. When Compressed Size bytes have been decoded,
+    Uncompressed Size bytes of output will have been produced but
+    the LZMA2 decoder doesn't indicate end of stream.
+
+
+3. Descriptions of Individual .lzma Files
+
+3.1. Good Files
+
+    good-unknown_size-with_eopm.lzma has unknown size in the header
+    and end of payload marker at the end.
+
+    good-known_size-without_eopm.lzma has a known size in the header
+    and no end of payload marker at the end.
+
+    good-known_size-with_eopm.lzma has a known size in the header
+    and end of payload marker at the end. XZ Utils 5.2.5 and older
+    will give an error at the end of the file after producing the
+    correct uncompressed output.
+
+
+3.2. Bad Files
+
+    bad-unknown_size-without_eopm.lzma has unknown size in the header
+    but no end of payload marker at the end. This file might be seen
+    by a decoder as if it were truncated.
+
+    bad-too_big_size-with_eopm.lzma has too big uncompressed size in
+    the header and the end of payload marker will be detected before
+    the specified number of bytes have been decoded.
+
+    bad-too_small_size-without_eopm-1.lzma has too small uncompressed
+    size in the header. The decoder will look for end of payload marker
+    but instead find a literal that would produce more output.
+
+    bad-too_small_size-without_eopm-2.lzma is like -1 above but instead
+    of a literal the problem occurs with a short repeated match.
+
+    bad-too_small_size-without_eopm-3.lzma is like -1 above but instead
+    of a literal the problem occurs in the middle of a match.
+
+
+4. Descriptions of Individual .lz (lzip) Files
+
+4.1. Good Files
+
+    good-1-v0.lz contains a single version 0 member. lzip 1.17 and
+    *older* can decompress this; support for version 0 was removed
+    in lzip 1.18.
+
+    good-1-v0-trailing-1.lz is like good-1-v0.lz but contains
+    trailing data that the decompressor must ignore.
+
+    good-1-v1.lz contains a single version 1 member. lzip 1.3 and
+    newer can decompress this.
+
+    good-1-v1-trailing-1.lz is like good-1-v1.lz but contains
+    trailing data that the decompressor must ignore.
+
+    good-1-v1-trailing-2.lz is like good-1-v1.lz but contains
+    trailing data whose first three bytes match the .lz magic bytes.
+    With lzip >= 1.20 this file results in an error unless one uses
+    the command line option --loose-trailing. lzip 1.3 to 1.19 decode
+    this file successfully by default. XZ Utils uses the old behavior
+    because it allows lzma_code() to stop at the first byte of the
+    trailing data as long as the first byte isn't 0x4C (L in US-ASCII);
+    otherwise the first 1-3 bytes that equal to the magic bytes are
+    consumed and lost in lzma_code(), and this is visible in xz too:
+
+        $ ( xz -dc ; cat ) < good-1-v1-trailing-2.lz
+        Hello
+        World!
+        Trailing garbage
+
+        $ ( xz -dc --single-stream ; cat ) < good-1-v1-trailing-2.lz
+        Hello
+        World!
+        LZITrailing garbage
+
+    good-2-v0-v1.lz contains two members of which the first is
+    version 0 and the second version 1. lzip versions 1.3 to 1.17
+    (inclusive) can decompress this.
+
+    good-2-v1-v0.lz contains two members of which the first is
+    version 1 and the second version 0. lzip versions 1.3 to 1.17
+    (inclusive) can decompress this.
+
+    good-2-v1-v1.lz contains two version 1 members. lzip versions 1.3
+    and newer can decompress this.
+
+
+4.2. Unsupported Files
+
+    unsupported-1-v234.lz is like good-1-v1.lz except the version
+    field has been set to 234 (0xEA) which, as of writing, isn't
+    defined or supported by any .lz implementation.
+
+
+4.3. Bad Files
+
+    bad-1-v1-magic-1.lz is like good-1-v1.lz but the first magic byte
+    is wrong.
+
+    bad-1-v1-magic-2.lz is like good-1-v1.lz but the last (fourth)
+    magic byte is wrong.
+
+    bad-1-v1-dict-1.lz has too low value in the dictionary size field.
+
+    bad-1-v1-dict-2.lz has too high value in the dictionary size field.
+
+    bad-1-v1-crc32.lz has wrong CRC32 value.
+
+    bad-1-v0-uncomp-size.lz is version 0 format with incorrect value
+    in the uncompressed size field.
+
+    bad-1-v1-uncomp-size.lz is version 1 format with incorrect value
+    in the uncompressed size field.
+
+    bad-1-v1-member-size.lz has incorrect value in the member size
+    field.
+
+    bad-1-v1-trailing-magic.lz has the four .lz magic bytes as trailing
+    data. This should be detected as a truncated file and thus result
+    in an error. That is, the last four bytes of the file should not be
+    ignored as trailing garbage. lzip >= 1.18 matches this behavior
+    while older versions ignore the last four bytes and don't indicate
+    an error.
+
diff --git a/tests/files/bad-0-backward_size.xz b/tests/files/bad-0-backward_size.xz
new file mode 100644
index 0000000..2b46fa9
--- /dev/null
+++ b/tests/files/bad-0-backward_size.xz
diff --git a/tests/files/bad-0-empty-truncated.xz b/tests/files/bad-0-empty-truncated.xz
new file mode 100644
index 0000000..f879af8
--- /dev/null
+++ b/tests/files/bad-0-empty-truncated.xz
diff --git a/tests/files/bad-0-footer_magic.xz b/tests/files/bad-0-footer_magic.xz
new file mode 100644
index 0000000..5d9e389
--- /dev/null
+++ b/tests/files/bad-0-footer_magic.xz
diff --git a/tests/files/bad-0-header_magic.xz b/tests/files/bad-0-header_magic.xz
new file mode 100644
index 0000000..5984a45
--- /dev/null
+++ b/tests/files/bad-0-header_magic.xz
diff --git a/tests/files/bad-0-nonempty_index.xz b/tests/files/bad-0-nonempty_index.xz
new file mode 100644
index 0000000..ed6e81f
--- /dev/null
+++ b/tests/files/bad-0-nonempty_index.xz
diff --git a/tests/files/bad-0cat-alone.xz b/tests/files/bad-0cat-alone.xz
new file mode 100644
index 0000000..a915a3a
--- /dev/null
+++ b/tests/files/bad-0cat-alone.xz
diff --git a/tests/files/bad-0cat-header_magic.xz b/tests/files/bad-0cat-header_magic.xz
new file mode 100644
index 0000000..426bf2d
--- /dev/null
+++ b/tests/files/bad-0cat-header_magic.xz
diff --git a/tests/files/bad-0catpad-empty.xz b/tests/files/bad-0catpad-empty.xz
new file mode 100644
index 0000000..97c1330
--- /dev/null
+++ b/tests/files/bad-0catpad-empty.xz
diff --git a/tests/files/bad-0pad-empty.xz b/tests/files/bad-0pad-empty.xz
new file mode 100644
index 0000000..45e00b7
--- /dev/null
+++ b/tests/files/bad-0pad-empty.xz
diff --git a/tests/files/bad-1-block_header-1.xz b/tests/files/bad-1-block_header-1.xz
new file mode 100644
index 0000000..d991536
--- /dev/null
+++ b/tests/files/bad-1-block_header-1.xz
diff --git a/tests/files/bad-1-block_header-2.xz b/tests/files/bad-1-block_header-2.xz
new file mode 100644
index 0000000..ae42ecf
--- /dev/null
+++ b/tests/files/bad-1-block_header-2.xz
diff --git a/tests/files/bad-1-block_header-3.xz b/tests/files/bad-1-block_header-3.xz
new file mode 100644
index 0000000..606cbd2
--- /dev/null
+++ b/tests/files/bad-1-block_header-3.xz
diff --git a/tests/files/bad-1-block_header-4.xz b/tests/files/bad-1-block_header-4.xz
new file mode 100644
index 0000000..e72dfbf
--- /dev/null
+++ b/tests/files/bad-1-block_header-4.xz
diff --git a/tests/files/bad-1-block_header-5.xz b/tests/files/bad-1-block_header-5.xz
new file mode 100644
index 0000000..9652112
--- /dev/null
+++ b/tests/files/bad-1-block_header-5.xz
diff --git a/tests/files/bad-1-block_header-6.xz b/tests/files/bad-1-block_header-6.xz
new file mode 100644
index 0000000..ecf0ff0
--- /dev/null
+++ b/tests/files/bad-1-block_header-6.xz
diff --git a/tests/files/bad-1-check-crc32-2.xz b/tests/files/bad-1-check-crc32-2.xz
new file mode 100644
index 0000000..95731ae
--- /dev/null
+++ b/tests/files/bad-1-check-crc32-2.xz
diff --git a/tests/files/bad-1-check-crc32.xz b/tests/files/bad-1-check-crc32.xz
new file mode 100644
index 0000000..1ebe131
--- /dev/null
+++ b/tests/files/bad-1-check-crc32.xz
diff --git a/tests/files/bad-1-check-crc64.xz b/tests/files/bad-1-check-crc64.xz
new file mode 100644
index 0000000..cdb7709
--- /dev/null
+++ b/tests/files/bad-1-check-crc64.xz
diff --git a/tests/files/bad-1-check-sha256.xz b/tests/files/bad-1-check-sha256.xz
new file mode 100644
index 0000000..def7bff
--- /dev/null
+++ b/tests/files/bad-1-check-sha256.xz
diff --git a/tests/files/bad-1-lzma2-1.xz b/tests/files/bad-1-lzma2-1.xz
new file mode 100644
index 0000000..640f592
--- /dev/null
+++ b/tests/files/bad-1-lzma2-1.xz
diff --git a/tests/files/bad-1-lzma2-10.xz b/tests/files/bad-1-lzma2-10.xz
new file mode 100644
index 0000000..246515e
--- /dev/null
+++ b/tests/files/bad-1-lzma2-10.xz
diff --git a/tests/files/bad-1-lzma2-11.xz b/tests/files/bad-1-lzma2-11.xz
new file mode 100644
index 0000000..ce857b6
--- /dev/null
+++ b/tests/files/bad-1-lzma2-11.xz
diff --git a/tests/files/bad-1-lzma2-2.xz b/tests/files/bad-1-lzma2-2.xz
new file mode 100644
index 0000000..69ab07d
--- /dev/null
+++ b/tests/files/bad-1-lzma2-2.xz
diff --git a/tests/files/bad-1-lzma2-3.xz b/tests/files/bad-1-lzma2-3.xz
new file mode 100644
index 0000000..66f48c5
--- /dev/null
+++ b/tests/files/bad-1-lzma2-3.xz
diff --git a/tests/files/bad-1-lzma2-4.xz b/tests/files/bad-1-lzma2-4.xz
new file mode 100644
index 0000000..ac97041
--- /dev/null
+++ b/tests/files/bad-1-lzma2-4.xz
diff --git a/tests/files/bad-1-lzma2-5.xz b/tests/files/bad-1-lzma2-5.xz
new file mode 100644
index 0000000..700464d
--- /dev/null
+++ b/tests/files/bad-1-lzma2-5.xz
diff --git a/tests/files/bad-1-lzma2-6.xz b/tests/files/bad-1-lzma2-6.xz
new file mode 100644
index 0000000..2bda0c4
--- /dev/null
+++ b/tests/files/bad-1-lzma2-6.xz
diff --git a/tests/files/bad-1-lzma2-7.xz b/tests/files/bad-1-lzma2-7.xz
new file mode 100644
index 0000000..8cc711c
--- /dev/null
+++ b/tests/files/bad-1-lzma2-7.xz
diff --git a/tests/files/bad-1-lzma2-8.xz b/tests/files/bad-1-lzma2-8.xz
new file mode 100644
index 0000000..f21a71b
--- /dev/null
+++ b/tests/files/bad-1-lzma2-8.xz
diff --git a/tests/files/bad-1-lzma2-9.xz b/tests/files/bad-1-lzma2-9.xz
new file mode 100644
index 0000000..0553905
--- /dev/null
+++ b/tests/files/bad-1-lzma2-9.xz
diff --git a/tests/files/bad-1-stream_flags-1.xz b/tests/files/bad-1-stream_flags-1.xz
new file mode 100644
index 0000000..6511773
--- /dev/null
+++ b/tests/files/bad-1-stream_flags-1.xz
diff --git a/tests/files/bad-1-stream_flags-2.xz b/tests/files/bad-1-stream_flags-2.xz
new file mode 100644
index 0000000..0c66b36
--- /dev/null
+++ b/tests/files/bad-1-stream_flags-2.xz
diff --git a/tests/files/bad-1-stream_flags-3.xz b/tests/files/bad-1-stream_flags-3.xz
new file mode 100644
index 0000000..a9b1f98
--- /dev/null
+++ b/tests/files/bad-1-stream_flags-3.xz
diff --git a/tests/files/bad-1-v0-uncomp-size.lz b/tests/files/bad-1-v0-uncomp-size.lz
new file mode 100644
index 0000000..6bf4c6c
--- /dev/null
+++ b/tests/files/bad-1-v0-uncomp-size.lz
diff --git a/tests/files/bad-1-v1-crc32.lz b/tests/files/bad-1-v1-crc32.lz
new file mode 100644
index 0000000..3387618
--- /dev/null
+++ b/tests/files/bad-1-v1-crc32.lz
diff --git a/tests/files/bad-1-v1-dict-1.lz b/tests/files/bad-1-v1-dict-1.lz
new file mode 100644
index 0000000..20768d5
--- /dev/null
+++ b/tests/files/bad-1-v1-dict-1.lz
diff --git a/tests/files/bad-1-v1-dict-2.lz b/tests/files/bad-1-v1-dict-2.lz
new file mode 100644
index 0000000..1f22e6d
--- /dev/null
+++ b/tests/files/bad-1-v1-dict-2.lz
diff --git a/tests/files/bad-1-v1-magic-1.lz b/tests/files/bad-1-v1-magic-1.lz
new file mode 100644
index 0000000..b5e374d
--- /dev/null
+++ b/tests/files/bad-1-v1-magic-1.lz
diff --git a/tests/files/bad-1-v1-magic-2.lz b/tests/files/bad-1-v1-magic-2.lz
new file mode 100644
index 0000000..f5d5b97
--- /dev/null
+++ b/tests/files/bad-1-v1-magic-2.lz
diff --git a/tests/files/bad-1-v1-member-size.lz b/tests/files/bad-1-v1-member-size.lz
new file mode 100644
index 0000000..fd8636a
--- /dev/null
+++ b/tests/files/bad-1-v1-member-size.lz
diff --git a/tests/files/bad-1-v1-trailing-magic.lz b/tests/files/bad-1-v1-trailing-magic.lz
new file mode 100644
index 0000000..f7926c5
--- /dev/null
+++ b/tests/files/bad-1-v1-trailing-magic.lz
diff --git a/tests/files/bad-1-v1-uncomp-size.lz b/tests/files/bad-1-v1-uncomp-size.lz
new file mode 100644
index 0000000..c89a283
--- /dev/null
+++ b/tests/files/bad-1-v1-uncomp-size.lz
diff --git a/tests/files/bad-1-vli-1.xz b/tests/files/bad-1-vli-1.xz
new file mode 100644
index 0000000..6514ab1
--- /dev/null
+++ b/tests/files/bad-1-vli-1.xz
diff --git a/tests/files/bad-1-vli-2.xz b/tests/files/bad-1-vli-2.xz
new file mode 100644
index 0000000..c16941b
--- /dev/null
+++ b/tests/files/bad-1-vli-2.xz
diff --git a/tests/files/bad-2-compressed_data_padding.xz b/tests/files/bad-2-compressed_data_padding.xz
new file mode 100644
index 0000000..382d047
--- /dev/null
+++ b/tests/files/bad-2-compressed_data_padding.xz
diff --git a/tests/files/bad-2-index-1.xz b/tests/files/bad-2-index-1.xz
new file mode 100644
index 0000000..f51ed21
--- /dev/null
+++ b/tests/files/bad-2-index-1.xz
diff --git a/tests/files/bad-2-index-2.xz b/tests/files/bad-2-index-2.xz
new file mode 100644
index 0000000..d7d00ff
--- /dev/null
+++ b/tests/files/bad-2-index-2.xz
diff --git a/tests/files/bad-2-index-3.xz b/tests/files/bad-2-index-3.xz
new file mode 100644
index 0000000..62428b8
--- /dev/null
+++ b/tests/files/bad-2-index-3.xz
diff --git a/tests/files/bad-2-index-4.xz b/tests/files/bad-2-index-4.xz
new file mode 100644
index 0000000..9cf2df6
--- /dev/null
+++ b/tests/files/bad-2-index-4.xz
diff --git a/tests/files/bad-2-index-5.xz b/tests/files/bad-2-index-5.xz
new file mode 100644
index 0000000..0a79270
--- /dev/null
+++ b/tests/files/bad-2-index-5.xz
diff --git a/tests/files/bad-3-index-uncomp-overflow.xz b/tests/files/bad-3-index-uncomp-overflow.xz
new file mode 100644
index 0000000..e1440ec
--- /dev/null
+++ b/tests/files/bad-3-index-uncomp-overflow.xz
diff --git a/tests/files/bad-too_big_size-with_eopm.lzma b/tests/files/bad-too_big_size-with_eopm.lzma
new file mode 100644
index 0000000..b7cd3b0
--- /dev/null
+++ b/tests/files/bad-too_big_size-with_eopm.lzma
diff --git a/tests/files/bad-too_small_size-without_eopm-1.lzma b/tests/files/bad-too_small_size-without_eopm-1.lzma
new file mode 100644
index 0000000..cc2805c
--- /dev/null
+++ b/tests/files/bad-too_small_size-without_eopm-1.lzma
diff --git a/tests/files/bad-too_small_size-without_eopm-2.lzma b/tests/files/bad-too_small_size-without_eopm-2.lzma
new file mode 100644
index 0000000..e37cab1
--- /dev/null
+++ b/tests/files/bad-too_small_size-without_eopm-2.lzma
diff --git a/tests/files/bad-too_small_size-without_eopm-3.lzma b/tests/files/bad-too_small_size-without_eopm-3.lzma
new file mode 100644
index 0000000..67a1af3
--- /dev/null
+++ b/tests/files/bad-too_small_size-without_eopm-3.lzma
diff --git a/tests/files/bad-unknown_size-without_eopm.lzma b/tests/files/bad-unknown_size-without_eopm.lzma
new file mode 100644
index 0000000..b3d7a52
--- /dev/null
+++ b/tests/files/bad-unknown_size-without_eopm.lzma
diff --git a/tests/files/good-0-empty.xz b/tests/files/good-0-empty.xz
new file mode 100644
index 0000000..83b95e0
--- /dev/null
+++ b/tests/files/good-0-empty.xz
diff --git a/tests/files/good-0cat-empty.xz b/tests/files/good-0cat-empty.xz
new file mode 100644
index 0000000..e6fc314
--- /dev/null
+++ b/tests/files/good-0cat-empty.xz
diff --git a/tests/files/good-0catpad-empty.xz b/tests/files/good-0catpad-empty.xz
new file mode 100644
index 0000000..4f86b7d
--- /dev/null
+++ b/tests/files/good-0catpad-empty.xz
diff --git a/tests/files/good-0pad-empty.xz b/tests/files/good-0pad-empty.xz
new file mode 100644
index 0000000..c51e3a6
--- /dev/null
+++ b/tests/files/good-0pad-empty.xz
diff --git a/tests/files/good-1-3delta-lzma2.xz b/tests/files/good-1-3delta-lzma2.xz
new file mode 100644
index 0000000..a0be1d0
--- /dev/null
+++ b/tests/files/good-1-3delta-lzma2.xz
diff --git a/tests/files/good-1-arm64-lzma2-1.xz b/tests/files/good-1-arm64-lzma2-1.xz
new file mode 100644
index 0000000..78169f1
--- /dev/null
+++ b/tests/files/good-1-arm64-lzma2-1.xz
diff --git a/tests/files/good-1-arm64-lzma2-2.xz b/tests/files/good-1-arm64-lzma2-2.xz
new file mode 100644
index 0000000..e0302fe
--- /dev/null
+++ b/tests/files/good-1-arm64-lzma2-2.xz
diff --git a/tests/files/good-1-block_header-1.xz b/tests/files/good-1-block_header-1.xz
new file mode 100644
index 0000000..fea5ad2
--- /dev/null
+++ b/tests/files/good-1-block_header-1.xz
diff --git a/tests/files/good-1-block_header-2.xz b/tests/files/good-1-block_header-2.xz
new file mode 100644
index 0000000..6b5dcb3
--- /dev/null
+++ b/tests/files/good-1-block_header-2.xz
diff --git a/tests/files/good-1-block_header-3.xz b/tests/files/good-1-block_header-3.xz
new file mode 100644
index 0000000..1565312
--- /dev/null
+++ b/tests/files/good-1-block_header-3.xz
diff --git a/tests/files/good-1-check-crc32.xz b/tests/files/good-1-check-crc32.xz
new file mode 100644
index 0000000..6c89593
--- /dev/null
+++ b/tests/files/good-1-check-crc32.xz
diff --git a/tests/files/good-1-check-crc64.xz b/tests/files/good-1-check-crc64.xz
new file mode 100644
index 0000000..5a9915d
--- /dev/null
+++ b/tests/files/good-1-check-crc64.xz
diff --git a/tests/files/good-1-check-none.xz b/tests/files/good-1-check-none.xz
new file mode 100644
index 0000000..1e85faf
--- /dev/null
+++ b/tests/files/good-1-check-none.xz
diff --git a/tests/files/good-1-check-sha256.xz b/tests/files/good-1-check-sha256.xz
new file mode 100644
index 0000000..fdc556b
--- /dev/null
+++ b/tests/files/good-1-check-sha256.xz
diff --git a/tests/files/good-1-delta-lzma2.tiff.xz b/tests/files/good-1-delta-lzma2.tiff.xz
new file mode 100644
index 0000000..1f033bc
--- /dev/null
+++ b/tests/files/good-1-delta-lzma2.tiff.xz
diff --git a/tests/files/good-1-empty-bcj-lzma2.xz b/tests/files/good-1-empty-bcj-lzma2.xz
new file mode 100644
index 0000000..94016d8
--- /dev/null
+++ b/tests/files/good-1-empty-bcj-lzma2.xz
diff --git a/tests/files/good-1-lzma2-1.xz b/tests/files/good-1-lzma2-1.xz
new file mode 100644
index 0000000..d8d6489
--- /dev/null
+++ b/tests/files/good-1-lzma2-1.xz
diff --git a/tests/files/good-1-lzma2-2.xz b/tests/files/good-1-lzma2-2.xz
new file mode 100644
index 0000000..7e8cdf1
--- /dev/null
+++ b/tests/files/good-1-lzma2-2.xz
diff --git a/tests/files/good-1-lzma2-3.xz b/tests/files/good-1-lzma2-3.xz
new file mode 100644
index 0000000..c4c72be
--- /dev/null
+++ b/tests/files/good-1-lzma2-3.xz
diff --git a/tests/files/good-1-lzma2-4.xz b/tests/files/good-1-lzma2-4.xz
new file mode 100644
index 0000000..e0d623a
--- /dev/null
+++ b/tests/files/good-1-lzma2-4.xz
diff --git a/tests/files/good-1-lzma2-5.xz b/tests/files/good-1-lzma2-5.xz
new file mode 100644
index 0000000..339d1c3
--- /dev/null
+++ b/tests/files/good-1-lzma2-5.xz
diff --git a/tests/files/good-1-sparc-lzma2.xz b/tests/files/good-1-sparc-lzma2.xz
new file mode 100644
index 0000000..4532bc6
--- /dev/null
+++ b/tests/files/good-1-sparc-lzma2.xz
diff --git a/tests/files/good-1-v0-trailing-1.lz b/tests/files/good-1-v0-trailing-1.lz
new file mode 100644
index 0000000..91f2b64
--- /dev/null
+++ b/tests/files/good-1-v0-trailing-1.lz
diff --git a/tests/files/good-1-v0.lz b/tests/files/good-1-v0.lz
new file mode 100644
index 0000000..99e3f27
--- /dev/null
+++ b/tests/files/good-1-v0.lz
diff --git a/tests/files/good-1-v1-trailing-1.lz b/tests/files/good-1-v1-trailing-1.lz
new file mode 100644
index 0000000..198e65c
--- /dev/null
+++ b/tests/files/good-1-v1-trailing-1.lz
diff --git a/tests/files/good-1-v1-trailing-2.lz b/tests/files/good-1-v1-trailing-2.lz
new file mode 100644
index 0000000..9a028fa
--- /dev/null
+++ b/tests/files/good-1-v1-trailing-2.lz
diff --git a/tests/files/good-1-v1.lz b/tests/files/good-1-v1.lz
new file mode 100644
index 0000000..4c9565c
--- /dev/null
+++ b/tests/files/good-1-v1.lz
diff --git a/tests/files/good-1-x86-lzma2.xz b/tests/files/good-1-x86-lzma2.xz
new file mode 100644
index 0000000..8053917
--- /dev/null
+++ b/tests/files/good-1-x86-lzma2.xz
diff --git a/tests/files/good-2-lzma2.xz b/tests/files/good-2-lzma2.xz
new file mode 100644
index 0000000..bed5085
--- /dev/null
+++ b/tests/files/good-2-lzma2.xz
diff --git a/tests/files/good-2-v0-v1.lz b/tests/files/good-2-v0-v1.lz
new file mode 100644
index 0000000..dc3165a
--- /dev/null
+++ b/tests/files/good-2-v0-v1.lz
diff --git a/tests/files/good-2-v1-v0.lz b/tests/files/good-2-v1-v0.lz
new file mode 100644
index 0000000..a999582
--- /dev/null
+++ b/tests/files/good-2-v1-v0.lz
diff --git a/tests/files/good-2-v1-v1.lz b/tests/files/good-2-v1-v1.lz
new file mode 100644
index 0000000..5381891
--- /dev/null
+++ b/tests/files/good-2-v1-v1.lz
diff --git a/tests/files/good-known_size-with_eopm.lzma b/tests/files/good-known_size-with_eopm.lzma
new file mode 100644
index 0000000..1b45307
--- /dev/null
+++ b/tests/files/good-known_size-with_eopm.lzma
diff --git a/tests/files/good-known_size-without_eopm.lzma b/tests/files/good-known_size-without_eopm.lzma
new file mode 100644
index 0000000..83623fd
--- /dev/null
+++ b/tests/files/good-known_size-without_eopm.lzma
diff --git a/tests/files/good-unknown_size-with_eopm.lzma b/tests/files/good-unknown_size-with_eopm.lzma
new file mode 100644
index 0000000..0f4ff82
--- /dev/null
+++ b/tests/files/good-unknown_size-with_eopm.lzma
diff --git a/tests/files/unsupported-1-v234.lz b/tests/files/unsupported-1-v234.lz
new file mode 100644
index 0000000..e571b0f
--- /dev/null
+++ b/tests/files/unsupported-1-v234.lz
diff --git a/tests/files/unsupported-block_header.xz b/tests/files/unsupported-block_header.xz
new file mode 100644
index 0000000..3830442
--- /dev/null
+++ b/tests/files/unsupported-block_header.xz
diff --git a/tests/files/unsupported-check.xz b/tests/files/unsupported-check.xz
new file mode 100644
index 0000000..c28355e
--- /dev/null
+++ b/tests/files/unsupported-check.xz
diff --git a/tests/files/unsupported-filter_flags-1.xz b/tests/files/unsupported-filter_flags-1.xz
new file mode 100644
index 0000000..48b9373
--- /dev/null
+++ b/tests/files/unsupported-filter_flags-1.xz
diff --git a/tests/files/unsupported-filter_flags-2.xz b/tests/files/unsupported-filter_flags-2.xz
new file mode 100644
index 0000000..c283359
--- /dev/null
+++ b/tests/files/unsupported-filter_flags-2.xz
diff --git a/tests/files/unsupported-filter_flags-3.xz b/tests/files/unsupported-filter_flags-3.xz
new file mode 100644
index 0000000..2608498
--- /dev/null
+++ b/tests/files/unsupported-filter_flags-3.xz
diff --git a/tests/ossfuzz/Makefile b/tests/ossfuzz/Makefile
new file mode 100644
index 0000000..747fb66
--- /dev/null
+++ b/tests/ossfuzz/Makefile
@@ -0,0 +1,7 @@
+fuzz: fuzz.c
+	$(CC) $(CFLAGS) -c fuzz.c -I ../../src/liblzma/api/
+	$(CXX) $(CXXFLAGS) $(LIB_FUZZING_ENGINE) fuzz.o -o $(OUT)/fuzz \
+	      ../../src/liblzma/.libs/liblzma.a
+
+clean:
+	rm -f *.o
diff --git a/tests/ossfuzz/config/fuzz.dict b/tests/ossfuzz/config/fuzz.dict
new file mode 100644
index 0000000..932d67c
--- /dev/null
+++ b/tests/ossfuzz/config/fuzz.dict
@@ -0,0 +1,2 @@
+"\xFD7zXZ\x00"
+"YZ"
diff --git a/tests/ossfuzz/config/fuzz.options b/tests/ossfuzz/config/fuzz.options
new file mode 100644
index 0000000..d59dfc1
--- /dev/null
+++ b/tests/ossfuzz/config/fuzz.options
@@ -0,0 +1,2 @@
+[libfuzzer]
+dict = fuzz.dict
diff --git a/tests/ossfuzz/fuzz.c b/tests/ossfuzz/fuzz.c
new file mode 100644
index 0000000..6d89930
--- /dev/null
+++ b/tests/ossfuzz/fuzz.c
@@ -0,0 +1,82 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       fuzz.c
+/// \brief      Fuzz test program for liblzma
+//
+//  Author:     Lasse Collin
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include <inttypes.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include "lzma.h"
+
+
+// Output buffer for decompressed data. This is write only; nothing cares
+// about the actual data written here.
+static uint8_t outbuf[4096];
+
+
+extern int
+LLVMFuzzerTestOneInput(const uint8_t *inbuf, size_t inbuf_size)
+{
+	// Some header values can make liblzma allocate a lot of RAM
+	// (up to about 4 GiB with liblzma 5.2.x). We set a limit here to
+	// prevent extreme allocations when fuzzing.
+	const uint64_t memlimit = 300 << 20; // 300 MiB
+
+	// Initialize a .xz decoder using the above memory usage limit.
+	// Enable support for concatenated .xz files which is used when
+	// decompressing regular .xz files (instead of data embedded inside
+	// some other file format). Integrity checks on the uncompressed
+	// data are ignored to make fuzzing more effective (incorrect check
+	// values won't prevent the decoder from processing more input).
+	//
+	// The flag LZMA_IGNORE_CHECK doesn't disable verification of header
+	// CRC32 values. Those checks are disabled when liblzma is built
+	// with the #define FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION.
+	lzma_stream strm = LZMA_STREAM_INIT;
+	lzma_ret ret = lzma_stream_decoder(&strm, memlimit,
+			LZMA_CONCATENATED | LZMA_IGNORE_CHECK);
+	if (ret != LZMA_OK) {
+		// This should never happen unless the system has
+		// no free memory or address space to allow the small
+		// allocations that the initialization requires.
+		fprintf(stderr, "lzma_stream_decoder() failed (%d)\n", ret);
+		abort();
+	}
+
+	// Give the whole input buffer at once to liblzma.
+	// Output buffer isn't initialized as liblzma only writes to it.
+	strm.next_in = inbuf;
+	strm.avail_in = inbuf_size;
+	strm.next_out = outbuf;
+	strm.avail_out = sizeof(outbuf);
+
+	while ((ret = lzma_code(&strm, LZMA_FINISH)) == LZMA_OK) {
+		if (strm.avail_out == 0) {
+			// outbuf became full. We don't care about the
+			// uncompressed data there, so we simply reuse
+			// the outbuf and overwrite the old data.
+			strm.next_out = outbuf;
+			strm.avail_out = sizeof(outbuf);
+		}
+	}
+
+	// LZMA_PROG_ERROR should never happen as long as the code calling
+	// the liblzma functions is correct. Thus LZMA_PROG_ERROR is a sign
+	// of a bug in either this function or in liblzma.
+	if (ret == LZMA_PROG_ERROR) {
+		fprintf(stderr, "lzma_code() returned LZMA_PROG_ERROR\n");
+		abort();
+	}
+
+	// Free the allocated memory.
+	lzma_end(&strm);
+
+	return 0;
+}
diff --git a/tests/test_bcj_exact_size.c b/tests/test_bcj_exact_size.c
new file mode 100644
index 0000000..551166c
--- /dev/null
+++ b/tests/test_bcj_exact_size.c
@@ -0,0 +1,124 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       test_bcj_exact_size.c
+/// \brief      Tests BCJ decoding when the output size is known
+///
+/// These tests fail with XZ Utils 5.0.3 and earlier.
+//
+//  Author:     Lasse Collin
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include "tests.h"
+
+
+static void
+test_exact_size(void)
+{
+#if !defined(HAVE_ENCODERS) || !defined(HAVE_DECODERS)
+	assert_skip("Encoder or decoder support disabled");
+#else
+	if (!lzma_filter_encoder_is_supported(LZMA_FILTER_POWERPC)
+			|| !lzma_filter_decoder_is_supported(
+				LZMA_FILTER_POWERPC))
+		assert_skip("PowerPC BCJ encoder and/or decoder "
+				"is disabled");
+
+	// Something to be compressed
+	const uint8_t in[16] = "0123456789ABCDEF";
+
+	// in[] after compression
+	uint8_t compressed[1024];
+	size_t compressed_size = 0;
+
+	// Output buffer for decompressing compressed[]
+	uint8_t out[sizeof(in)];
+
+	// Compress with PowerPC BCJ and LZMA2. PowerPC BCJ is used because
+	// it has fixed 4-byte alignment which makes triggering the potential
+	// bug easy.
+	lzma_options_lzma opt_lzma2;
+	assert_false(lzma_lzma_preset(&opt_lzma2, 0));
+
+	lzma_filter filters[3] = {
+		{ .id = LZMA_FILTER_POWERPC, .options = NULL },
+		{ .id = LZMA_FILTER_LZMA2, .options = &opt_lzma2 },
+		{ .id = LZMA_VLI_UNKNOWN, .options = NULL },
+	};
+
+	assert_lzma_ret(lzma_stream_buffer_encode(
+			filters, LZMA_CHECK_CRC32, NULL,
+			in, sizeof(in),
+			compressed, &compressed_size, sizeof(compressed)),
+		LZMA_OK);
+
+	// Decompress so that we won't give more output space than
+	// the Stream will need.
+	lzma_stream strm = LZMA_STREAM_INIT;
+	assert_lzma_ret(lzma_stream_decoder(&strm, 10 << 20, 0), LZMA_OK);
+
+	strm.next_in = compressed;
+	strm.next_out = out;
+
+	while (true) {
+		if (strm.total_in < compressed_size)
+			strm.avail_in = 1;
+
+		const lzma_ret ret = lzma_code(&strm, LZMA_RUN);
+		if (ret == LZMA_STREAM_END) {
+			assert_uint_eq(strm.total_in, compressed_size);
+			assert_uint_eq(strm.total_out, sizeof(in));
+			lzma_end(&strm);
+			return;
+		}
+
+		assert_lzma_ret(ret, LZMA_OK);
+
+		if (strm.total_out < sizeof(in))
+			strm.avail_out = 1;
+	}
+#endif
+}
+
+
+static void
+test_empty_block(void)
+{
+#ifndef HAVE_DECODERS
+	assert_skip("Decoder support disabled");
+#else
+	if (!lzma_filter_decoder_is_supported(LZMA_FILTER_POWERPC))
+		assert_skip("PowerPC BCJ decoder is disabled");
+
+	// An empty file with one Block using PowerPC BCJ and LZMA2.
+	size_t in_size;
+	uint8_t *empty_bcj_lzma2 = tuktest_file_from_srcdir(
+			"files/good-1-empty-bcj-lzma2.xz", &in_size);
+
+	// Decompress without giving any output space.
+	uint64_t memlimit = 1 << 20;
+	uint8_t out[1];
+	size_t in_pos = 0;
+	size_t out_pos = 0;
+	assert_lzma_ret(lzma_stream_buffer_decode(&memlimit, 0, NULL,
+			empty_bcj_lzma2, &in_pos, in_size, out, &out_pos, 0),
+		LZMA_OK);
+	assert_uint_eq(in_pos, in_size);
+	assert_uint_eq(out_pos, 0);
+#endif
+}
+
+
+extern int
+main(int argc, char **argv)
+{
+	tuktest_start(argc, argv);
+
+	tuktest_run(test_exact_size);
+	tuktest_run(test_empty_block);
+
+	return tuktest_end();
+}
diff --git a/tests/test_block_header.c b/tests/test_block_header.c
new file mode 100644
index 0000000..747925b
--- /dev/null
+++ b/tests/test_block_header.c
@@ -0,0 +1,514 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       test_block_header.c
+/// \brief      Tests Block Header coders
+//
+//  Authors:    Lasse Collin
+//              Jia Tan
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include "tests.h"
+
+
+static lzma_options_lzma opt_lzma;
+
+
+#ifdef HAVE_ENCODERS
+static lzma_filter filters_none[1] = {
+	{
+		.id = LZMA_VLI_UNKNOWN,
+	},
+};
+
+
+static lzma_filter filters_one[2] = {
+	{
+		.id = LZMA_FILTER_LZMA2,
+		.options = &opt_lzma,
+	}, {
+		.id = LZMA_VLI_UNKNOWN,
+	}
+};
+
+
+// These filters are only used in test_lzma_block_header_decode()
+// which only runs if encoders and decoders are configured.
+#ifdef HAVE_DECODERS
+static lzma_filter filters_four[5] = {
+	{
+		.id = LZMA_FILTER_X86,
+		.options = NULL,
+	}, {
+		.id = LZMA_FILTER_X86,
+		.options = NULL,
+	}, {
+		.id = LZMA_FILTER_X86,
+		.options = NULL,
+	}, {
+		.id = LZMA_FILTER_LZMA2,
+		.options = &opt_lzma,
+	}, {
+		.id = LZMA_VLI_UNKNOWN,
+	}
+};
+#endif
+
+
+static lzma_filter filters_five[6] = {
+	{
+		.id = LZMA_FILTER_X86,
+		.options = NULL,
+	}, {
+		.id = LZMA_FILTER_X86,
+		.options = NULL,
+	}, {
+		.id = LZMA_FILTER_X86,
+		.options = NULL,
+	}, {
+		.id = LZMA_FILTER_X86,
+		.options = NULL,
+	}, {
+		.id = LZMA_FILTER_LZMA2,
+		.options = &opt_lzma,
+	}, {
+		.id = LZMA_VLI_UNKNOWN,
+	}
+};
+#endif
+
+
+static void
+test_lzma_block_header_size(void)
+{
+#ifndef HAVE_ENCODERS
+	assert_skip("Encoder support disabled");
+#else
+	if (!lzma_filter_encoder_is_supported(LZMA_FILTER_X86))
+		assert_skip("x86 BCJ encoder is disabled");
+
+	lzma_block block = {
+		.version = 0,
+		.filters = filters_one,
+		.compressed_size = LZMA_VLI_UNKNOWN,
+		.uncompressed_size = LZMA_VLI_UNKNOWN,
+		.check = LZMA_CHECK_CRC32
+	};
+
+	// Test that all initial options are valid
+	assert_lzma_ret(lzma_block_header_size(&block), LZMA_OK);
+	assert_uint(block.header_size, >=, LZMA_BLOCK_HEADER_SIZE_MIN);
+	assert_uint(block.header_size, <=, LZMA_BLOCK_HEADER_SIZE_MAX);
+	assert_uint_eq(block.header_size % 4, 0);
+
+	// Test invalid version number
+	for (uint32_t i = 2; i < 20; i++) {
+		block.version = i;
+		assert_lzma_ret(lzma_block_header_size(&block),
+				LZMA_OPTIONS_ERROR);
+	}
+
+	block.version = 1;
+
+	// Test invalid compressed size
+	block.compressed_size = 0;
+	assert_lzma_ret(lzma_block_header_size(&block), LZMA_PROG_ERROR);
+
+	block.compressed_size = LZMA_VLI_MAX + 1;
+	assert_lzma_ret(lzma_block_header_size(&block), LZMA_PROG_ERROR);
+	block.compressed_size = LZMA_VLI_UNKNOWN;
+
+	// Test invalid uncompressed size
+	block.uncompressed_size = LZMA_VLI_MAX + 1;
+	assert_lzma_ret(lzma_block_header_size(&block), LZMA_PROG_ERROR);
+	block.uncompressed_size = LZMA_VLI_MAX;
+
+	// Test invalid filters
+	block.filters = NULL;
+	assert_lzma_ret(lzma_block_header_size(&block), LZMA_PROG_ERROR);
+
+	block.filters = filters_none;
+	assert_lzma_ret(lzma_block_header_size(&block), LZMA_PROG_ERROR);
+
+	block.filters = filters_five;
+	assert_lzma_ret(lzma_block_header_size(&block), LZMA_PROG_ERROR);
+
+	block.filters = filters_one;
+
+	// Test setting compressed_size to something valid
+	block.compressed_size = 4096;
+	assert_lzma_ret(lzma_block_header_size(&block), LZMA_OK);
+	assert_uint(block.header_size, >=, LZMA_BLOCK_HEADER_SIZE_MIN);
+	assert_uint(block.header_size, <=, LZMA_BLOCK_HEADER_SIZE_MAX);
+	assert_uint_eq(block.header_size % 4, 0);
+
+	// Test setting uncompressed_size to something valid
+	block.uncompressed_size = 4096;
+	assert_lzma_ret(lzma_block_header_size(&block), LZMA_OK);
+	assert_uint(block.header_size, >=, LZMA_BLOCK_HEADER_SIZE_MIN);
+	assert_uint(block.header_size, <=, LZMA_BLOCK_HEADER_SIZE_MAX);
+	assert_uint_eq(block.header_size % 4, 0);
+
+	// This should pass, but header_size will be an invalid value
+	// because the total block size will not be able to fit in a valid
+	// lzma_vli. This way a temporary value can be used to reserve
+	// space for the header and later the actual value can be set.
+	block.compressed_size = LZMA_VLI_MAX;
+	assert_lzma_ret(lzma_block_header_size(&block), LZMA_OK);
+	assert_uint(block.header_size, >=, LZMA_BLOCK_HEADER_SIZE_MIN);
+	assert_uint(block.header_size, <=, LZMA_BLOCK_HEADER_SIZE_MAX);
+	assert_uint_eq(block.header_size % 4, 0);
+
+	// Use an invalid value for a filter option. This should still pass
+	// because the size of the LZMA2 properties is known by liblzma
+	// without reading any of the options so it doesn't validate them.
+	lzma_options_lzma bad_ops;
+	assert_false(lzma_lzma_preset(&bad_ops, 1));
+	bad_ops.pb = 0x1000;
+
+	lzma_filter bad_filters[2] = {
+		{
+			.id = LZMA_FILTER_LZMA2,
+			.options = &bad_ops
+		},
+		{
+			.id = LZMA_VLI_UNKNOWN,
+			.options = NULL
+		}
+	};
+
+	block.filters = bad_filters;
+
+	assert_lzma_ret(lzma_block_header_size(&block), LZMA_OK);
+	assert_uint(block.header_size, >=, LZMA_BLOCK_HEADER_SIZE_MIN);
+	assert_uint(block.header_size, <=, LZMA_BLOCK_HEADER_SIZE_MAX);
+	assert_uint_eq(block.header_size % 4, 0);
+
+	// Use an invalid block option. The check type isn't stored in
+	// the Block Header and so _header_size ignores it.
+	block.check = 0x1000;
+	block.ignore_check = false;
+
+	assert_lzma_ret(lzma_block_header_size(&block), LZMA_OK);
+	assert_uint(block.header_size, >=, LZMA_BLOCK_HEADER_SIZE_MIN);
+	assert_uint(block.header_size, <=, LZMA_BLOCK_HEADER_SIZE_MAX);
+	assert_uint_eq(block.header_size % 4, 0);
+#endif
+}
+
+
+static void
+test_lzma_block_header_encode(void)
+{
+#if !defined(HAVE_ENCODERS) || !defined(HAVE_DECODERS)
+	assert_skip("Encoder or decoder support disabled");
+#else
+
+	if (!lzma_filter_encoder_is_supported(LZMA_FILTER_X86)
+                        || !lzma_filter_decoder_is_supported(LZMA_FILTER_X86))
+                assert_skip("x86 BCJ encoder and/or decoder "
+                                "is disabled");
+
+	lzma_block block = {
+		.version = 1,
+		.filters = filters_one,
+		.compressed_size = LZMA_VLI_UNKNOWN,
+		.uncompressed_size = LZMA_VLI_UNKNOWN,
+		.check = LZMA_CHECK_CRC32,
+	};
+
+	// Ensure all block options are valid before changes are tested
+	assert_lzma_ret(lzma_block_header_size(&block), LZMA_OK);
+
+	uint8_t out[LZMA_BLOCK_HEADER_SIZE_MAX];
+
+	// Test invalid block version
+	for (uint32_t i = 2; i < 20; i++) {
+		block.version = i;
+		assert_lzma_ret(lzma_block_header_encode(&block, out),
+				LZMA_PROG_ERROR);
+	}
+
+	block.version = 1;
+
+	// Test invalid header size (< min, > max, % 4 != 0)
+	block.header_size = LZMA_BLOCK_HEADER_SIZE_MIN - 4;
+	assert_lzma_ret(lzma_block_header_encode(&block, out),
+			LZMA_PROG_ERROR);
+	block.header_size = LZMA_BLOCK_HEADER_SIZE_MIN + 2;
+	assert_lzma_ret(lzma_block_header_encode(&block, out),
+			LZMA_PROG_ERROR);
+	block.header_size = LZMA_BLOCK_HEADER_SIZE_MAX + 4;
+	assert_lzma_ret(lzma_block_header_encode(&block, out),
+			LZMA_PROG_ERROR);
+	assert_lzma_ret(lzma_block_header_size(&block), LZMA_OK);
+
+	// Test invalid compressed_size
+	block.compressed_size = 0;
+	assert_lzma_ret(lzma_block_header_encode(&block, out),
+			LZMA_PROG_ERROR);
+	block.compressed_size = LZMA_VLI_MAX + 1;
+	assert_lzma_ret(lzma_block_header_encode(&block, out),
+			LZMA_PROG_ERROR);
+
+	// This test passes test_lzma_block_header_size, but should
+	// fail here because there is not enough space to encode the
+	// proper block size because the total size is too big to fit
+	// in an lzma_vli
+	block.compressed_size = LZMA_VLI_MAX;
+	assert_lzma_ret(lzma_block_header_encode(&block, out),
+			LZMA_PROG_ERROR);
+	block.compressed_size = LZMA_VLI_UNKNOWN;
+
+	// Test invalid uncompressed size
+	block.uncompressed_size = LZMA_VLI_MAX + 1;
+	assert_lzma_ret(lzma_block_header_encode(&block, out),
+			LZMA_PROG_ERROR);
+	block.uncompressed_size = LZMA_VLI_UNKNOWN;
+
+	// Test invalid block check
+	block.check = 0x1000;
+	block.ignore_check = false;
+	assert_lzma_ret(lzma_block_header_encode(&block, out),
+			LZMA_PROG_ERROR);
+	block.check = LZMA_CHECK_CRC32;
+
+	// Test invalid filters
+	block.filters = NULL;
+	assert_lzma_ret(lzma_block_header_encode(&block, out),
+			LZMA_PROG_ERROR);
+
+	block.filters = filters_none;
+	assert_lzma_ret(lzma_block_header_encode(&block, out),
+			LZMA_PROG_ERROR);
+
+	block.filters = filters_five;
+	block.header_size = LZMA_BLOCK_HEADER_SIZE_MAX - 4;
+	assert_lzma_ret(lzma_block_header_encode(&block, out),
+			LZMA_PROG_ERROR);
+
+	// Test valid encoding and verify bytes of block header.
+	// More complicated tests for encoding headers are included
+	// in test_lzma_block_header_decode.
+	block.filters = filters_one;
+	assert_lzma_ret(lzma_block_header_size(&block), LZMA_OK);
+	assert_lzma_ret(lzma_block_header_encode(&block, out), LZMA_OK);
+
+	// First read block header size from out and verify
+	// that it == (encoded size + 1) * 4
+	uint32_t header_size = (out[0] + 1U) * 4;
+	assert_uint_eq(header_size, block.header_size);
+
+	// Next read block flags
+	uint8_t flags = out[1];
+
+	// Should have number of filters = 1
+	assert_uint_eq((flags & 0x3) + 1, 1);
+
+	// Bits 2-7 must be empty not set
+	assert_uint_eq(flags & (0xFF - 0x3), 0);
+
+	// Verify filter flags
+	// Decode Filter ID
+	lzma_vli filter_id = 0;
+	size_t pos = 2;
+	assert_lzma_ret(lzma_vli_decode(&filter_id, NULL, out,
+			&pos, header_size), LZMA_OK);
+	assert_uint_eq(filter_id, filters_one[0].id);
+
+	// Decode Size of Properties
+	lzma_vli prop_size = 0;
+	assert_lzma_ret(lzma_vli_decode(&prop_size, NULL, out,
+			&pos, header_size), LZMA_OK);
+
+	// LZMA2 has 1 byte prop size
+	assert_uint_eq(prop_size, 1);
+	uint8_t expected_filter_props = 0;
+	assert_lzma_ret(lzma_properties_encode(filters_one,
+			&expected_filter_props), LZMA_OK);
+	assert_uint_eq(out[pos], expected_filter_props);
+	pos++;
+
+	// Check null-padding
+	for (size_t i = pos; i < header_size - 4; i++)
+		assert_uint_eq(out[i], 0);
+
+	// Check CRC32
+	assert_uint_eq(read32le(&out[header_size - 4]), lzma_crc32(out,
+			header_size - 4, 0));
+#endif
+}
+
+
+#if defined(HAVE_ENCODERS) && defined(HAVE_DECODERS)
+// Helper function to compare two lzma_block structures field by field
+static void
+compare_blocks(lzma_block *block_expected, lzma_block *block_actual)
+{
+	assert_uint_eq(block_actual->version, block_expected->version);
+	assert_uint_eq(block_actual->compressed_size,
+			block_expected->compressed_size);
+	assert_uint_eq(block_actual->uncompressed_size,
+			block_expected->uncompressed_size);
+	assert_uint_eq(block_actual->check, block_expected->check);
+	assert_uint_eq(block_actual->header_size, block_expected->header_size);
+
+	// Compare filter IDs
+	assert_true(block_expected->filters && block_actual->filters);
+	lzma_filter expected_filter = block_expected->filters[0];
+	uint32_t filter_count = 0;
+	while (expected_filter.id != LZMA_VLI_UNKNOWN) {
+		assert_uint_eq(block_actual->filters[filter_count].id,
+				expected_filter.id);
+		expected_filter = block_expected->filters[++filter_count];
+	}
+
+	assert_uint_eq(block_actual->filters[filter_count].id,
+			LZMA_VLI_UNKNOWN);
+}
+#endif
+
+
+static void
+test_lzma_block_header_decode(void)
+{
+#if !defined(HAVE_ENCODERS) || !defined(HAVE_DECODERS)
+	assert_skip("Encoder or decoder support disabled");
+#else
+	if (!lzma_filter_encoder_is_supported(LZMA_FILTER_X86)
+                        || !lzma_filter_decoder_is_supported(LZMA_FILTER_X86))
+                assert_skip("x86 BCJ encoder and/or decoder "
+                                "is disabled");
+
+	lzma_block block = {
+		.filters = filters_one,
+		.compressed_size = LZMA_VLI_UNKNOWN,
+		.uncompressed_size = LZMA_VLI_UNKNOWN,
+		.check = LZMA_CHECK_CRC32,
+		.version = 0
+	};
+
+	assert_lzma_ret(lzma_block_header_size(&block), LZMA_OK);
+
+	// Encode block header with simple options
+	uint8_t out[LZMA_BLOCK_HEADER_SIZE_MAX];
+	assert_lzma_ret(lzma_block_header_encode(&block, out), LZMA_OK);
+
+	// Decode block header and check that the options match
+	lzma_filter decoded_filters[LZMA_FILTERS_MAX + 1];
+	lzma_block decoded_block = {
+		.version = 0,
+		.filters = decoded_filters,
+		.check = LZMA_CHECK_CRC32
+	};
+	decoded_block.header_size = lzma_block_header_size_decode(out[0]);
+
+	assert_lzma_ret(lzma_block_header_decode(&decoded_block, NULL, out),
+			LZMA_OK);
+	compare_blocks(&block, &decoded_block);
+
+	// Reset output buffer and decoded_block
+	memzero(out, LZMA_BLOCK_HEADER_SIZE_MAX);
+	memzero(&decoded_block, sizeof(lzma_block));
+	decoded_block.filters = decoded_filters;
+	decoded_block.check = LZMA_CHECK_CRC32;
+
+	// Test with compressed size set
+	block.compressed_size = 4096;
+	assert_lzma_ret(lzma_block_header_size(&block), LZMA_OK);
+	assert_lzma_ret(lzma_block_header_encode(&block, out), LZMA_OK);
+	decoded_block.header_size = lzma_block_header_size_decode(out[0]);
+	assert_lzma_ret(lzma_block_header_decode(&decoded_block, NULL, out),
+			LZMA_OK);
+	compare_blocks(&block, &decoded_block);
+
+	memzero(out, LZMA_BLOCK_HEADER_SIZE_MAX);
+	memzero(&decoded_block, sizeof(lzma_block));
+	decoded_block.filters = decoded_filters;
+	decoded_block.check = LZMA_CHECK_CRC32;
+
+	// Test with uncompressed size set
+	block.uncompressed_size = 4096;
+	assert_lzma_ret(lzma_block_header_size(&block), LZMA_OK);
+	assert_lzma_ret(lzma_block_header_encode(&block, out), LZMA_OK);
+	decoded_block.header_size = lzma_block_header_size_decode(out[0]);
+	assert_lzma_ret(lzma_block_header_decode(&decoded_block, NULL, out),
+			LZMA_OK);
+	compare_blocks(&block, &decoded_block);
+
+	memzero(out, LZMA_BLOCK_HEADER_SIZE_MAX);
+	memzero(&decoded_block, sizeof(lzma_block));
+	decoded_block.filters = decoded_filters;
+	decoded_block.check = LZMA_CHECK_CRC32;
+
+	// Test with multiple filters
+	block.filters = filters_four;
+	assert_lzma_ret(lzma_block_header_size(&block), LZMA_OK);
+	assert_lzma_ret(lzma_block_header_encode(&block, out), LZMA_OK);
+	decoded_block.header_size = lzma_block_header_size_decode(out[0]);
+	assert_lzma_ret(lzma_block_header_decode(&decoded_block, NULL, out),
+			LZMA_OK);
+	compare_blocks(&block, &decoded_block);
+
+	memzero(&decoded_block, sizeof(lzma_block));
+	decoded_block.filters = decoded_filters;
+	decoded_block.check = LZMA_CHECK_CRC32;
+	decoded_block.header_size = lzma_block_header_size_decode(out[0]);
+
+	// Test with too high version. The decoder will set it to a version
+	// that it supports.
+	decoded_block.version = 2;
+	assert_lzma_ret(lzma_block_header_decode(&decoded_block, NULL, out),
+			LZMA_OK);
+	assert_uint_eq(decoded_block.version, 1);
+
+	// Test bad check type
+	decoded_block.check = LZMA_CHECK_ID_MAX + 1;
+	assert_lzma_ret(lzma_block_header_decode(&decoded_block, NULL, out),
+			LZMA_PROG_ERROR);
+	decoded_block.check = LZMA_CHECK_CRC32;
+
+	// Test bad check value
+	out[decoded_block.header_size - 1] -= 10;
+	assert_lzma_ret(lzma_block_header_decode(&decoded_block, NULL, out),
+			LZMA_DATA_ERROR);
+	out[decoded_block.header_size - 1] += 10;
+
+	// Test non-NULL padding
+	out[decoded_block.header_size - 5] = 1;
+
+	// Recompute CRC32
+	write32le(&out[decoded_block.header_size - 4], lzma_crc32(out,
+			decoded_block.header_size - 4, 0));
+	assert_lzma_ret(lzma_block_header_decode(&decoded_block, NULL, out),
+			LZMA_OPTIONS_ERROR);
+
+	// Test unsupported flags
+	out[1] = 0xFF;
+
+	// Recompute CRC32
+	write32le(&out[decoded_block.header_size - 4], lzma_crc32(out,
+			decoded_block.header_size - 4, 0));
+	assert_lzma_ret(lzma_block_header_decode(&decoded_block, NULL, out),
+			LZMA_OPTIONS_ERROR);
+#endif
+}
+
+
+extern int
+main(int argc, char **argv)
+{
+	tuktest_start(argc, argv);
+
+	if (lzma_lzma_preset(&opt_lzma, 1))
+		tuktest_error("lzma_lzma_preset() failed");
+
+	tuktest_run(test_lzma_block_header_size);
+	tuktest_run(test_lzma_block_header_encode);
+	tuktest_run(test_lzma_block_header_decode);
+
+	return tuktest_end();
+}
diff --git a/tests/test_check.c b/tests/test_check.c
new file mode 100644
index 0000000..bc52f40
--- /dev/null
+++ b/tests/test_check.c
@@ -0,0 +1,390 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       test_check.c
+/// \brief      Tests integrity checks
+//
+//  Authors:    Lasse Collin
+//              Jia Tan
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include "tests.h"
+#include "mythread.h"
+
+
+// These must be specified as numbers so that the test works on EBCDIC
+// systems too.
+// static const uint8_t test_string[9] = "123456789";
+// static const uint8_t test_unaligned[12] = "xxx123456789";
+static const uint8_t test_string[9] = { 49, 50, 51, 52, 53, 54, 55, 56, 57 };
+static const uint8_t test_unaligned[12]
+		= { 120, 120, 120, 49, 50, 51, 52, 53, 54, 55, 56, 57 };
+
+// 2 MB is more than enough for the tests. Actually a tiny value would
+// work because we don't actually decompress the files, we only test
+// decoding of the Stream Header fields.
+#define TEST_CHECK_MEMLIMIT (2U << 20)
+
+static size_t no_check_size;
+static uint8_t *no_check_xz_data;
+
+static size_t unsupported_check_size;
+static uint8_t *unsupported_check_xz_data;
+
+#ifdef HAVE_CHECK_CRC32
+static size_t crc32_size;
+static uint8_t *crc32_xz_data;
+#endif
+
+#ifdef HAVE_CHECK_CRC64
+static size_t crc64_size;
+static uint8_t *crc64_xz_data;
+#endif
+
+#ifdef HAVE_CHECK_SHA256
+static size_t sha256_size;
+static uint8_t *sha256_xz_data;
+#endif
+
+
+#ifdef HAVE_CHECK_CRC64
+static const uint8_t *
+get_random256(uint32_t *seed)
+{
+	static uint8_t buf[256];
+
+	for (size_t i = 0; i < sizeof(buf); ++i) {
+		*seed = *seed * 1103515245 + 12345;
+		buf[i] = (uint8_t)(*seed >> 22);
+	}
+
+	return buf;
+}
+#endif
+
+
+static void
+test_lzma_crc32(void)
+{
+	// CRC32 is always enabled.
+	assert_true(lzma_check_is_supported(LZMA_CHECK_CRC32));
+
+	const uint32_t test_vector = 0xCBF43926;
+
+	// Test 1
+	assert_uint_eq(lzma_crc32(test_string, sizeof(test_string), 0),
+			test_vector);
+
+	// Test 2
+	assert_uint_eq(lzma_crc32(test_unaligned + 3, sizeof(test_string), 0),
+			test_vector);
+
+	// Test 3
+	uint32_t crc = 0;
+	for (size_t i = 0; i < sizeof(test_string); ++i)
+		crc = lzma_crc32(test_string + i, 1, crc);
+	assert_uint_eq(crc, test_vector);
+}
+
+
+static void
+test_lzma_crc64(void)
+{
+	// CRC64 can be disabled.
+	if (!lzma_check_is_supported(LZMA_CHECK_CRC64))
+		assert_skip("CRC64 support is disabled");
+
+	// If CRC64 is disabled then lzma_crc64() will be missing.
+	// Using an ifdef here avoids a linker error.
+#ifdef HAVE_CHECK_CRC64
+	const uint64_t test_vector = 0x995DC9BBDF1939FA;
+
+	// Test 1
+	assert_uint_eq(lzma_crc64(test_string, sizeof(test_string), 0),
+			test_vector);
+
+	// Test 2
+	assert_uint_eq(lzma_crc64(test_unaligned + 3, sizeof(test_string), 0),
+			test_vector);
+
+	// Test 3
+	uint64_t crc = 0;
+	for (size_t i = 0; i < sizeof(test_string); ++i)
+		crc = lzma_crc64(test_string + i, 1, crc);
+	assert_uint_eq(crc, test_vector);
+
+	// Test 4: The CLMUL implementation works on 16-byte chunks.
+	// Test combination of different start and end alignments
+	// and also short buffer lengths where special handling is needed.
+	uint32_t seed = 29;
+	crc = 0x96E30D5184B7FA2C; // Random initial value
+	for (size_t start = 0; start < 32; ++start)
+		for (size_t size = 1; size < 256 - 32; ++size)
+			crc = lzma_crc64(get_random256(&seed), size, crc);
+
+	assert_uint_eq(crc, 0x23AB787177231C9F);
+#endif
+}
+
+
+static void
+test_lzma_supported_checks(void)
+{
+	static const int expected_check_ids[] = {
+		LZMA_CHECK_NONE,
+#ifdef HAVE_CHECK_CRC32
+		LZMA_CHECK_CRC32,
+#endif
+#ifdef HAVE_CHECK_CRC64
+		LZMA_CHECK_CRC64,
+#endif
+#ifdef HAVE_CHECK_SHA256
+		LZMA_CHECK_SHA256,
+#endif
+	};
+
+	for (int i = 0; i <= LZMA_CHECK_ID_MAX + 1; i++) {
+		bool matched = false;
+		for (unsigned int j = 0; j < ARRAY_SIZE(expected_check_ids);
+				j++) {
+			if (expected_check_ids[j] == i) {
+				matched = true;
+				break;
+			}
+		}
+
+		if (matched)
+			assert_true(lzma_check_is_supported(i));
+		else
+			assert_false(lzma_check_is_supported(i));
+	}
+}
+
+
+static void
+test_lzma_check_size(void)
+{
+	// Expected check sizes taken from src/liblzma/api/lzma/check.h
+	static const uint32_t expected_check_sizes[] = {
+			0, 4, 4, 4, 8, 8, 8, 16, 16, 16,
+			32, 32, 32, 64, 64, 64
+	};
+
+	for (unsigned int i = 0; i < ARRAY_SIZE(expected_check_sizes); i++)
+		assert_uint_eq(expected_check_sizes[i], lzma_check_size(i));
+
+	assert_uint_eq(lzma_check_size(LZMA_CHECK_ID_MAX + 1), UINT32_MAX);
+}
+
+
+// Test the single threaded decoder for lzma_get_check
+static void
+test_lzma_get_check_st(void)
+{
+#ifndef HAVE_DECODERS
+	assert_skip("Decoder support disabled");
+#else
+	const uint32_t flags = LZMA_TELL_ANY_CHECK |
+			LZMA_TELL_UNSUPPORTED_CHECK |
+			LZMA_TELL_NO_CHECK;
+
+	uint8_t outbuf[128];
+	lzma_stream strm = LZMA_STREAM_INIT;
+
+	// Test a file with no integrity check:
+	assert_lzma_ret(lzma_stream_decoder(&strm, TEST_CHECK_MEMLIMIT,
+			flags), LZMA_OK);
+	strm.next_in = no_check_xz_data;
+	strm.avail_in = no_check_size;
+	strm.next_out = outbuf;
+	strm.avail_out = sizeof(outbuf);
+
+	assert_lzma_ret(lzma_code(&strm, LZMA_RUN), LZMA_NO_CHECK);
+	assert_lzma_check(lzma_get_check(&strm), LZMA_CHECK_NONE);
+	assert_lzma_ret(lzma_code(&strm, LZMA_RUN), LZMA_STREAM_END);
+
+	// Test a file with an unsupported integrity check type:
+	assert_lzma_ret(lzma_stream_decoder(&strm, TEST_CHECK_MEMLIMIT,
+			flags), LZMA_OK);
+	strm.next_in = unsupported_check_xz_data;
+	strm.avail_in = unsupported_check_size;
+	strm.next_out = outbuf;
+	strm.avail_out = sizeof(outbuf);
+
+	assert_lzma_ret(lzma_code(&strm, LZMA_RUN), LZMA_UNSUPPORTED_CHECK);
+	assert_lzma_ret(lzma_code(&strm, LZMA_RUN), LZMA_STREAM_END);
+
+	// Test a file with CRC32 as the integrity check:
+#ifdef HAVE_CHECK_CRC32
+	assert_lzma_ret(lzma_stream_decoder(&strm, TEST_CHECK_MEMLIMIT,
+			flags), LZMA_OK);
+	strm.next_in = crc32_xz_data;
+	strm.avail_in = crc32_size;
+	strm.next_out = outbuf;
+	strm.avail_out = sizeof(outbuf);
+
+	assert_lzma_ret(lzma_code(&strm, LZMA_RUN), LZMA_GET_CHECK);
+	assert_lzma_check(lzma_get_check(&strm), LZMA_CHECK_CRC32);
+	assert_lzma_ret(lzma_code(&strm, LZMA_RUN), LZMA_STREAM_END);
+#endif
+
+	// Test a file with CRC64 as the integrity check:
+#ifdef HAVE_CHECK_CRC64
+	assert_lzma_ret(lzma_stream_decoder(&strm, TEST_CHECK_MEMLIMIT,
+			flags), LZMA_OK);
+	strm.next_in = crc64_xz_data;
+	strm.avail_in = crc64_size;
+	strm.next_out = outbuf;
+	strm.avail_out = sizeof(outbuf);
+
+	assert_lzma_ret(lzma_code(&strm, LZMA_RUN), LZMA_GET_CHECK);
+	assert_lzma_check(lzma_get_check(&strm), LZMA_CHECK_CRC64);
+	assert_lzma_ret(lzma_code(&strm, LZMA_RUN), LZMA_STREAM_END);
+#endif
+
+	// Test a file with SHA-256 as the integrity check:
+#ifdef HAVE_CHECK_SHA256
+	assert_lzma_ret(lzma_stream_decoder(&strm, TEST_CHECK_MEMLIMIT,
+			flags), LZMA_OK);
+	strm.next_in = sha256_xz_data;
+	strm.avail_in = sha256_size;
+	strm.next_out = outbuf;
+	strm.avail_out = sizeof(outbuf);
+
+	assert_lzma_ret(lzma_code(&strm, LZMA_RUN), LZMA_GET_CHECK);
+	assert_lzma_check(lzma_get_check(&strm), LZMA_CHECK_SHA256);
+	assert_lzma_ret(lzma_code(&strm, LZMA_RUN), LZMA_STREAM_END);
+#endif
+
+	lzma_end(&strm);
+#endif
+}
+
+
+static void
+test_lzma_get_check_mt(void)
+{
+#ifndef MYTHREAD_ENABLED
+	assert_skip("Threading support disabled");
+#elif !defined(HAVE_DECODERS)
+	assert_skip("Decoder support disabled");
+#else
+	const uint32_t flags = LZMA_TELL_ANY_CHECK |
+			LZMA_TELL_UNSUPPORTED_CHECK |
+			LZMA_TELL_NO_CHECK;
+
+	const lzma_mt options = {
+		.flags = flags,
+		.threads = 2,
+		.timeout = 0,
+		.memlimit_threading = TEST_CHECK_MEMLIMIT,
+		.memlimit_stop = TEST_CHECK_MEMLIMIT
+	};
+
+	uint8_t outbuf[128];
+	lzma_stream strm = LZMA_STREAM_INIT;
+
+	// Test a file with no integrity check:
+	assert_lzma_ret(lzma_stream_decoder_mt(&strm, &options), LZMA_OK);
+	strm.next_in = no_check_xz_data;
+	strm.avail_in = no_check_size;
+	strm.next_out = outbuf;
+	strm.avail_out = sizeof(outbuf);
+
+	assert_lzma_ret(lzma_code(&strm, LZMA_RUN), LZMA_NO_CHECK);
+	assert_lzma_check(lzma_get_check(&strm), LZMA_CHECK_NONE);
+	assert_lzma_ret(lzma_code(&strm, LZMA_RUN), LZMA_STREAM_END);
+
+	// Test a file with an unsupported integrity check type:
+	assert_lzma_ret(lzma_stream_decoder_mt(&strm, &options), LZMA_OK);
+	strm.next_in = unsupported_check_xz_data;
+	strm.avail_in = unsupported_check_size;
+	strm.next_out = outbuf;
+	strm.avail_out = sizeof(outbuf);
+
+	assert_lzma_ret(lzma_code(&strm, LZMA_RUN), LZMA_UNSUPPORTED_CHECK);
+	assert_lzma_ret(lzma_code(&strm, LZMA_RUN), LZMA_STREAM_END);
+
+	// Test a file with CRC32 as the integrity check:
+#ifdef HAVE_CHECK_CRC32
+	assert_lzma_ret(lzma_stream_decoder_mt(&strm, &options), LZMA_OK);
+	strm.next_in = crc32_xz_data;
+	strm.avail_in = crc32_size;
+	strm.next_out = outbuf;
+	strm.avail_out = sizeof(outbuf);
+
+	assert_lzma_ret(lzma_code(&strm, LZMA_RUN), LZMA_GET_CHECK);
+	assert_lzma_check(lzma_get_check(&strm), LZMA_CHECK_CRC32);
+	assert_lzma_ret(lzma_code(&strm, LZMA_RUN), LZMA_STREAM_END);
+#endif
+
+	// Test a file with CRC64 as the integrity check:
+#ifdef HAVE_CHECK_CRC64
+	assert_lzma_ret(lzma_stream_decoder_mt(&strm, &options), LZMA_OK);
+	strm.next_in = crc64_xz_data;
+	strm.avail_in = crc64_size;
+	strm.next_out = outbuf;
+	strm.avail_out = sizeof(outbuf);
+
+	assert_lzma_ret(lzma_code(&strm, LZMA_RUN), LZMA_GET_CHECK);
+	assert_lzma_check(lzma_get_check(&strm), LZMA_CHECK_CRC64);
+	assert_lzma_ret(lzma_code(&strm, LZMA_RUN), LZMA_STREAM_END);
+#endif
+
+	// Test a file with SHA-256 as the integrity check:
+#ifdef HAVE_CHECK_SHA256
+	assert_lzma_ret(lzma_stream_decoder_mt(&strm,&options), LZMA_OK);
+	strm.next_in = sha256_xz_data;
+	strm.avail_in = sha256_size;
+	strm.next_out = outbuf;
+	strm.avail_out = sizeof(outbuf);
+
+	assert_lzma_ret(lzma_code(&strm, LZMA_RUN), LZMA_GET_CHECK);
+	assert_lzma_check(lzma_get_check(&strm), LZMA_CHECK_SHA256);
+	assert_lzma_ret(lzma_code(&strm, LZMA_RUN), LZMA_STREAM_END);
+#endif
+
+	lzma_end(&strm);
+#endif
+}
+
+
+extern int
+main(int argc, char **argv)
+{
+	tuktest_start(argc, argv);
+
+	no_check_xz_data = tuktest_file_from_srcdir(
+			"files/good-1-check-none.xz", &no_check_size);
+
+	unsupported_check_xz_data = tuktest_file_from_srcdir(
+			"files/unsupported-check.xz",
+			&unsupported_check_size);
+
+#ifdef HAVE_CHECK_CRC32
+	crc32_xz_data = tuktest_file_from_srcdir(
+			"files/good-1-check-crc32.xz", &crc32_size);
+#endif
+
+#ifdef HAVE_CHECK_CRC64
+	crc64_xz_data = tuktest_file_from_srcdir(
+			"files/good-1-check-crc64.xz", &crc64_size);
+#endif
+
+#ifdef HAVE_CHECK_SHA256
+	sha256_xz_data = tuktest_file_from_srcdir(
+			"files/good-1-check-sha256.xz", &sha256_size);
+#endif
+
+	tuktest_run(test_lzma_crc32);
+	tuktest_run(test_lzma_crc64);
+	tuktest_run(test_lzma_supported_checks);
+	tuktest_run(test_lzma_check_size);
+	tuktest_run(test_lzma_get_check_st);
+	tuktest_run(test_lzma_get_check_mt);
+
+	return tuktest_end();
+}
diff --git a/tests/test_compress.sh b/tests/test_compress.sh
new file mode 100755
index 0000000..61d20ce
--- /dev/null
+++ b/tests/test_compress.sh
@@ -0,0 +1,149 @@
+#!/bin/sh
+
+###############################################################################
+#
+# Author: Lasse Collin
+#
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
+###############################################################################
+
+# If xz wasn't built, this test is skipped.
+if test -x ../src/xz/xz ; then
+	:
+else
+	exit 77
+fi
+
+# If compression or decompression support is missing, this test is skipped.
+# This isn't perfect as if only some compressors or decompressors are disabled
+# then this script can still fail because for now this doesn't check the
+# availability of each filter.
+if grep 'define HAVE_ENCODERS' ../config.h > /dev/null \
+		&& grep 'define HAVE_DECODERS' ../config.h > /dev/null ; then
+	:
+else
+	echo "Compression or decompression support is disabled, skipping this test."
+	exit 77
+fi
+
+# Find out if our shell supports functions.
+eval 'unset foo ; foo() { return 42; } ; foo'
+if test $? != 42 ; then
+	echo "/bin/sh doesn't support functions, skipping this test."
+	exit 77
+fi
+
+test_xz() {
+	if $XZ -c "$@" "$FILE" > "$TMP_COMP"; then
+		:
+	else
+		echo "Compressing failed: $* $FILE"
+		exit 1
+	fi
+
+	if $XZ -cd "$TMP_COMP" > "$TMP_UNCOMP" ; then
+		:
+	else
+		echo "Decompressing failed: $* $FILE"
+		exit 1
+	fi
+
+	if cmp "$TMP_UNCOMP" "$FILE" ; then
+		:
+	else
+		echo "Decompressed file does not match" \
+				"the original: $* $FILE"
+		exit 1
+	fi
+
+	if test -n "$XZDEC" ; then
+		if $XZDEC "$TMP_COMP" > "$TMP_UNCOMP" ; then
+			:
+		else
+			echo "Decompressing failed: $* $FILE"
+			exit 1
+		fi
+
+		if cmp "$TMP_UNCOMP" "$FILE" ; then
+			:
+		else
+			echo "Decompressed file does not match" \
+					"the original: $* $FILE"
+			exit 1
+		fi
+	fi
+}
+
+XZ="../src/xz/xz --memlimit-compress=48MiB --memlimit-decompress=5MiB \
+		--no-adjust --threads=1 --check=crc32"
+grep "define HAVE_CHECK_CRC64" ../config.h > /dev/null \
+		&& XZ="$XZ --check=crc64"
+XZDEC="../src/xzdec/xzdec" # No memory usage limiter available
+test -x ../src/xzdec/xzdec || XZDEC=
+
+# Create the required input file if needed.
+#
+# Derive temporary filenames for compressed and uncompressed outputs
+# from the input filename. This is needed when multiple tests are
+# run in parallel.
+FILE=$1
+TMP_COMP="tmp_comp_$FILE"
+TMP_UNCOMP="tmp_uncomp_$FILE"
+
+case $FILE in
+	# compress_generated files will be created in the build directory
+	# in the /tests/ sub-directory.
+	compress_generated_*)
+		if ./create_compress_files "$FILE" ; then
+			:
+		else
+			rm -f "$FILE"
+			echo "Failed to create the file '$FILE'."
+			exit 1
+		fi
+		;;
+	# compress_prepared files exist in the source directory since they
+	# do not need to be copied or regenerated.
+	compress_prepared_*)
+		FILE="$srcdir/$FILE"
+		;;
+	'')
+		echo "No test file was specified."
+		exit 1
+		;;
+esac
+
+# Remove temporary now (in case they are something weird), and on exit.
+rm -f "$TMP_COMP" "$TMP_UNCOMP"
+trap 'rm -f "$TMP_COMP" "$TMP_UNCOMP"' 0
+
+# Compress and decompress the file with various filter configurations.
+#
+# Don't test with empty arguments; it breaks some ancient
+# proprietary /bin/sh versions due to $@ used in test_xz().
+test_xz -1
+test_xz -2
+test_xz -3
+test_xz -4
+
+test_filter()
+{
+	grep "define HAVE_ENCODER_$1" ../config.h > /dev/null || return
+	grep "define HAVE_DECODER_$1" ../config.h > /dev/null || return
+	shift
+	test_xz "$@" --lzma2=dict=64KiB,nice=32,mode=fast
+}
+
+test_filter DELTA --delta=dist=1
+test_filter DELTA --delta=dist=4
+test_filter DELTA --delta=dist=256
+test_filter X86 --x86
+test_filter POWERPC --power
+test_filter IA64 --ia64
+test_filter ARM --arm
+test_filter ARMTHUMB --armthumb
+test_filter SPARC --sparc
+
+exit 0
diff --git a/tests/test_compress_generated_abc b/tests/test_compress_generated_abc
new file mode 100755
index 0000000..43c6951
--- /dev/null
+++ b/tests/test_compress_generated_abc
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+exec "$srcdir/test_compress.sh" compress_generated_abc
diff --git a/tests/test_compress_generated_random b/tests/test_compress_generated_random
new file mode 100755
index 0000000..e47555d
--- /dev/null
+++ b/tests/test_compress_generated_random
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+exec "$srcdir/test_compress.sh" compress_generated_random
diff --git a/tests/test_compress_generated_text b/tests/test_compress_generated_text
new file mode 100755
index 0000000..412ae0e
--- /dev/null
+++ b/tests/test_compress_generated_text
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+exec "$srcdir/test_compress.sh" compress_generated_text
diff --git a/tests/test_compress_prepared_bcj_sparc b/tests/test_compress_prepared_bcj_sparc
new file mode 100755
index 0000000..deb76ef
--- /dev/null
+++ b/tests/test_compress_prepared_bcj_sparc
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+exec "$srcdir/test_compress.sh" compress_prepared_bcj_sparc
diff --git a/tests/test_compress_prepared_bcj_x86 b/tests/test_compress_prepared_bcj_x86
new file mode 100755
index 0000000..3452d7f
--- /dev/null
+++ b/tests/test_compress_prepared_bcj_x86
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+exec "$srcdir/test_compress.sh" compress_prepared_bcj_x86
diff --git a/tests/test_files.sh b/tests/test_files.sh
new file mode 100755
index 0000000..64d7308
--- /dev/null
+++ b/tests/test_files.sh
@@ -0,0 +1,197 @@
+#!/bin/sh
+
+###############################################################################
+#
+# Author: Lasse Collin
+#
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
+###############################################################################
+
+# If both xz and xzdec were not build, skip this test.
+XZ=../src/xz/xz
+XZDEC=../src/xzdec/xzdec
+test -x "$XZ" || XZ=
+test -x "$XZDEC" || XZDEC=
+if test -z "$XZ$XZDEC"; then
+	echo "xz and xzdec were not built, skipping this test."
+	exit 77
+fi
+
+# If decompression support is missing, this test is skipped.
+# This isn't perfect as if only some decompressors are disabled
+# then some good files might not decompress and the test fails
+# for a (kind of) wrong reason.
+if grep 'define HAVE_DECODERS' ../config.h > /dev/null ; then
+	:
+else
+	echo "Decompression support is disabled, skipping this test."
+	exit 77
+fi
+
+# If a feature was disabled at build time, make it possible to skip
+# some of the test files. Use exit status 77 if any files were skipped.
+EXIT_STATUS=0
+have_feature()
+{
+	grep "define HAVE_$1" ../config.h > /dev/null && return 0
+	printf '%s: Skipping because HAVE_%s is not enabled\n' "$2" "$1"
+	EXIT_STATUS=77
+	return 1
+}
+
+
+#######
+# .xz #
+#######
+
+# If these integrity check types were disabled at build time,
+# allow the tests to pass still.
+NO_WARN=
+grep 'define HAVE_CHECK_CRC64' ../config.h > /dev/null || NO_WARN=-qQ
+grep 'define HAVE_CHECK_SHA256' ../config.h > /dev/null || NO_WARN=-qQ
+
+for I in "$srcdir"/files/good-*.xz
+do
+	# If features were disabled at build time, keep this still working.
+	case $I in
+		*/good-1-*delta-lzma2*.xz)
+			have_feature DECODER_DELTA "$I" || continue
+			;;
+	esac
+	case $I in
+		*/good-1-empty-bcj-lzma2.xz)
+			have_feature DECODER_POWERPC "$I" || continue
+			;;
+	esac
+	case $I in
+		*/good-1-sparc-lzma2.xz)
+			have_feature DECODER_SPARC "$I" || continue
+			;;
+	esac
+	case $I in
+		*/good-1-x86-lzma2.xz)
+			have_feature DECODER_X86 "$I" || continue
+			;;
+	esac
+	case $I in
+		*/good-1-arm64-lzma2-*.xz)
+			have_feature DECODER_ARM64 "$I" || continue
+			;;
+	esac
+
+	if test -z "$XZ" || "$XZ" $NO_WARN -dc "$I" > /dev/null; then
+		:
+	else
+		echo "Good file failed: $I"
+		exit 1
+	fi
+
+	if test -z "$XZDEC" || "$XZDEC" $NO_WARN "$I" > /dev/null; then
+		:
+	else
+		echo "Good file failed: $I"
+		exit 1
+	fi
+done
+
+for I in "$srcdir"/files/bad-*.xz
+do
+	if test -n "$XZ" && "$XZ" -dc "$I" > /dev/null 2>&1; then
+		echo "Bad file succeeded: $I"
+		exit 1
+	fi
+
+	# xzdec doesn't warn about unsupported check so skip this if any of
+	# the check types were disabled at built time (NO_WARN isn't empty).
+	if test -n "$XZDEC" && test -z "$NO_WARN" \
+			&& "$XZDEC" "$I" > /dev/null 2>&1; then
+		echo "Bad file succeeded: $I"
+		exit 1
+	fi
+done
+
+# Testing for the lzma_index_append() bug in <= 5.2.6 needs "xz -l":
+I="$srcdir/files/bad-3-index-uncomp-overflow.xz"
+if test -n "$XZ" && "$XZ" -l "$I" > /dev/null 2>&1; then
+	echo "Bad file succeeded with xz -l: $I"
+	exit 1
+fi
+
+for I in "$srcdir"/files/unsupported-*.xz
+do
+	# Test these only with xz as unsupported-check.xz will exit
+	# successfully with xzdec because it doesn't warn about
+	# unsupported check type.
+	if test -n "$XZ" && "$XZ" -dc "$I" > /dev/null 2>&1; then
+		echo "Unsupported file succeeded: $I"
+		exit 1
+	fi
+done
+
+# Test that this passes with --no-warn (-Q).
+I="$srcdir/files/unsupported-check.xz"
+if test -z "$XZ" || "$XZ" -dcqQ "$I" > /dev/null; then
+	:
+else
+	echo "Unsupported file failed with xz -Q: $I"
+	exit 1
+fi
+
+if test -z "$XZDEC" || "$XZDEC" -qQ "$I" > /dev/null; then
+	:
+else
+	echo "Unsupported file failed with xzdec -Q: $I"
+	exit 1
+fi
+
+
+#########
+# .lzma #
+#########
+
+for I in "$srcdir"/files/good-*.lzma
+do
+	if test -z "$XZ" || "$XZ" -dc "$I" > /dev/null; then
+		:
+	else
+		echo "Good file failed: $I"
+		exit 1
+	fi
+done
+
+for I in "$srcdir"/files/bad-*.lzma
+do
+	if test -n "$XZ" && "$XZ" -dc "$I" > /dev/null 2>&1; then
+		echo "Bad file succeeded: $I"
+		exit 1
+	fi
+done
+
+
+#######
+# .lz #
+#######
+
+if grep 'define HAVE_LZIP_DECODER' ../config.h > /dev/null ; then
+	for I in "$srcdir"/files/good-*.lz
+	do
+		if test -z "$XZ" || "$XZ" -dc "$I" > /dev/null; then
+			:
+		else
+			echo "Good file failed: $I"
+			exit 1
+		fi
+	done
+
+	for I in "$srcdir"/files/bad-*.lz "$srcdir"/files/unsupported-*.lz
+	do
+		if test -n "$XZ" && "$XZ" -dc "$I" > /dev/null 2>&1; then
+			echo "Bad file succeeded: $I"
+			exit 1
+		fi
+	done
+fi
+
+exit "$EXIT_STATUS"
diff --git a/tests/test_filter_flags.c b/tests/test_filter_flags.c
new file mode 100644
index 0000000..5cfccea
--- /dev/null
+++ b/tests/test_filter_flags.c
@@ -0,0 +1,527 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       test_filter_flags.c
+/// \brief      Tests Filter Flags coders
+//
+//  Authors:    Jia Tan
+//              Lasse Collin
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include "tests.h"
+
+// FIXME: This is from src/liblzma/common/common.h but it cannot be
+// included here. This constant is needed in only a few files, perhaps
+// move it to some other internal header or create a new one?
+#define LZMA_FILTER_RESERVED_START (LZMA_VLI_C(1) << 62)
+
+
+#if defined(HAVE_ENCODERS)
+// No tests are run without encoders, so init the global filters
+// only when the encoders are enabled.
+static lzma_filter lzma1_filter = { LZMA_FILTER_LZMA1, NULL };
+static lzma_filter lzma2_filter = { LZMA_FILTER_LZMA2, NULL };
+static lzma_filter delta_filter = { LZMA_FILTER_DELTA, NULL };
+
+static lzma_filter bcj_filters_encoders[] = {
+#ifdef HAVE_ENCODER_X86
+	{ LZMA_FILTER_X86, NULL },
+#endif
+#ifdef HAVE_ENCODER_POWERPC
+	{ LZMA_FILTER_POWERPC, NULL },
+#endif
+#ifdef HAVE_ENCODER_IA64
+	{ LZMA_FILTER_IA64, NULL },
+#endif
+#ifdef HAVE_ENCODER_ARM
+	{ LZMA_FILTER_ARM, NULL },
+#endif
+#ifdef HAVE_ENCODER_ARM64
+	{ LZMA_FILTER_ARM64, NULL },
+#endif
+#ifdef HAVE_ENCODER_ARMTHUMB
+	{ LZMA_FILTER_ARMTHUMB, NULL },
+#endif
+#ifdef HAVE_ENCODER_SPARC
+	{ LZMA_FILTER_SPARC, NULL },
+#endif
+};
+
+// HAVE_ENCODERS ifdef not termianted here because decoders are
+// only used if encoders are, but encoders can still be used
+// even if decoders are not.
+
+#ifdef HAVE_DECODERS
+static lzma_filter bcj_filters_decoders[] = {
+#ifdef HAVE_DECODER_X86
+	{ LZMA_FILTER_X86, NULL },
+#endif
+#ifdef HAVE_DECODER_POWERPC
+	{ LZMA_FILTER_POWERPC, NULL },
+#endif
+#ifdef HAVE_DECODER_IA64
+	{ LZMA_FILTER_IA64, NULL },
+#endif
+#ifdef HAVE_DECODER_ARM
+	{ LZMA_FILTER_ARM, NULL },
+#endif
+#ifdef HAVE_DECODER_ARM64
+	{ LZMA_FILTER_ARM64, NULL },
+#endif
+#ifdef HAVE_DECODER_ARMTHUMB
+	{ LZMA_FILTER_ARMTHUMB, NULL },
+#endif
+#ifdef HAVE_DECODER_SPARC
+	{ LZMA_FILTER_SPARC, NULL },
+#endif
+};
+#endif
+#endif
+
+
+static void
+test_lzma_filter_flags_size(void)
+{
+#ifndef HAVE_ENCODERS
+	assert_skip("Encoder support disabled");
+#else
+	// For each supported filter, test that the size can be calculated
+	// and that the size calculated is reasonable. A reasonable size
+	// must be greater than 0, but less than the maximum size for the
+	// block header.
+	uint32_t size = 0;
+	if (lzma_filter_encoder_is_supported(LZMA_FILTER_LZMA1)) {
+		assert_lzma_ret(lzma_filter_flags_size(&size,
+				&lzma1_filter), LZMA_PROG_ERROR);
+	}
+
+	if (lzma_filter_encoder_is_supported(LZMA_FILTER_LZMA2)) {
+		assert_lzma_ret(lzma_filter_flags_size(&size,
+				&lzma2_filter), LZMA_OK);
+		assert_true(size != 0 && size < LZMA_BLOCK_HEADER_SIZE_MAX);
+	}
+
+	// Do not use macro ARRAY_SIZE() in the for loop condition directly.
+	// If the BCJ filters are not configured and built, then ARRAY_SIZE()
+	// will return 0 and cause a warning because the for loop will never
+	// execute since any unsigned number cannot be < 0 (-Werror=type-limits).
+	const uint32_t bcj_array_size = ARRAY_SIZE(bcj_filters_encoders);
+	for (uint32_t i = 0; i < bcj_array_size; i++) {
+		assert_lzma_ret(lzma_filter_flags_size(&size,
+				&bcj_filters_encoders[i]), LZMA_OK);
+		assert_true(size != 0 && size < LZMA_BLOCK_HEADER_SIZE_MAX);
+	}
+
+	if (lzma_filter_encoder_is_supported(LZMA_FILTER_DELTA)) {
+		assert_lzma_ret(lzma_filter_flags_size(&size,
+				&delta_filter), LZMA_OK);
+		assert_true(size != 0 && size < LZMA_BLOCK_HEADER_SIZE_MAX);
+	}
+
+	// Test invalid Filter IDs
+	lzma_filter bad_filter = { 2, NULL };
+
+	assert_lzma_ret(lzma_filter_flags_size(&size, &bad_filter),
+			LZMA_OPTIONS_ERROR);
+	bad_filter.id = LZMA_VLI_MAX;
+	assert_lzma_ret(lzma_filter_flags_size(&size, &bad_filter),
+			LZMA_PROG_ERROR);
+	bad_filter.id = LZMA_FILTER_RESERVED_START;
+	assert_lzma_ret(lzma_filter_flags_size(&size, &bad_filter),
+			LZMA_PROG_ERROR);
+#endif
+}
+
+
+// Helper function for test_lzma_filter_flags_encode.
+// The should_encode parameter represents if the encoding operation
+// is expected to fail.
+// Avoid data -> encode -> decode -> compare to data.
+// Instead create expected encoding and compare to result from
+// lzma_filter_flags_encode.
+// Filter Flags in .xz are encoded as:
+// |Filter ID (VLI)|Size of Properties (VLI)|Filter Properties|
+#if defined(HAVE_ENCODERS) && defined(HAVE_DECODERS)
+static void
+verify_filter_flags_encode(lzma_filter *filter, bool should_encode)
+{
+	uint32_t size = 0;
+
+	// First calculate the size of Filter Flags to know how much
+	// memory to allocate to hold the encoded Filter Flags
+	assert_lzma_ret(lzma_filter_flags_size(&size, filter), LZMA_OK);
+	uint8_t *encoded_out = tuktest_malloc(size * sizeof(uint8_t));
+	size_t out_pos = 0;
+	if (!should_encode) {
+		assert_false(lzma_filter_flags_encode(filter, encoded_out,
+				&out_pos, size) == LZMA_OK);
+		return;
+	}
+
+	// Next encode the Filter Flags for the provided filter
+	assert_lzma_ret(lzma_filter_flags_encode(filter, encoded_out,
+			&out_pos, size), LZMA_OK);
+	assert_uint_eq(size, out_pos);
+
+	// Next decode the VLI for the Filter ID and verify it matches
+	// the expected Filter ID
+	size_t filter_id_vli_size = 0;
+	lzma_vli filter_id = 0;
+	assert_lzma_ret(lzma_vli_decode(&filter_id, NULL, encoded_out,
+			&filter_id_vli_size, size), LZMA_OK);
+	assert_uint_eq(filter->id, filter_id);
+
+	// Next decode the Size of Properites and ensure it equals
+	// the expected size.
+	// Expected size should be:
+	// total filter flag length - size of filter id VLI + size of
+	//                            property size VLI
+	// Not verifying the contents of Filter Properties since
+	// that belongs in a different test
+	size_t size_of_properties_vli_size = 0;
+	lzma_vli size_of_properties = 0;
+	assert_lzma_ret(lzma_vli_decode(&size_of_properties, NULL,
+			encoded_out + filter_id_vli_size,
+			&size_of_properties_vli_size, size), LZMA_OK);
+	assert_uint_eq(size - (size_of_properties_vli_size +
+			filter_id_vli_size), size_of_properties);
+}
+#endif
+
+
+static void
+test_lzma_filter_flags_encode(void)
+{
+#if !defined(HAVE_ENCODERS) || !defined(HAVE_DECODERS)
+	assert_skip("Encoder or decoder support disabled");
+#else
+	// No test for LZMA1 since the .xz format does not support LZMA1
+	// and so the flags cannot be encoded for that filter
+	if (lzma_filter_encoder_is_supported(LZMA_FILTER_LZMA2)) {
+		// Test with NULL options that should fail
+		lzma_options_lzma *options = lzma2_filter.options;
+		lzma2_filter.options = NULL;
+		verify_filter_flags_encode(&lzma2_filter, false);
+
+		// Place options back in the filter, and test should pass
+		lzma2_filter.options = options;
+		verify_filter_flags_encode(&lzma2_filter, true);
+	}
+
+	// NOTE: Many BCJ filters require that start_offset is a multiple
+	// of some power of two. The Filter Flags encoder and decoder don't
+	// completely validate the options and thus 257 passes the tests
+	// with all BCJ filters. It would be caught when initializing
+	// a filter chain encoder or decoder.
+	lzma_options_bcj bcj_options = {
+		.start_offset = 257
+	};
+
+	const uint32_t bcj_array_size = ARRAY_SIZE(bcj_filters_encoders);
+	for (uint32_t i = 0; i < bcj_array_size; i++) {
+		// NULL options should pass for bcj filters
+		verify_filter_flags_encode(&bcj_filters_encoders[i], true);
+		lzma_filter bcj_with_options = {
+				bcj_filters_encoders[i].id, &bcj_options };
+		verify_filter_flags_encode(&bcj_with_options, true);
+	}
+
+	if (lzma_filter_encoder_is_supported(LZMA_FILTER_DELTA)) {
+		lzma_options_delta delta_opts_below_min = {
+			.type = LZMA_DELTA_TYPE_BYTE,
+			.dist = LZMA_DELTA_DIST_MIN - 1
+		};
+
+		lzma_options_delta delta_opts_above_max = {
+			.type = LZMA_DELTA_TYPE_BYTE,
+			.dist = LZMA_DELTA_DIST_MAX + 1
+		};
+
+		verify_filter_flags_encode(&delta_filter, true);
+
+		lzma_filter delta_filter_bad_options = {
+				LZMA_FILTER_DELTA, &delta_opts_below_min };
+
+		// Next test error case using minimum - 1 delta distance
+		verify_filter_flags_encode(&delta_filter_bad_options, false);
+
+		// Next test error case using maximum + 1 delta distance
+		delta_filter_bad_options.options = &delta_opts_above_max;
+		verify_filter_flags_encode(&delta_filter_bad_options, false);
+
+		// Next test NULL case
+		delta_filter_bad_options.options = NULL;
+		verify_filter_flags_encode(&delta_filter_bad_options, false);
+	}
+
+	// Test expected failing cases
+	lzma_filter bad_filter = { LZMA_FILTER_RESERVED_START, NULL };
+	size_t out_pos = 0;
+	size_t out_size = LZMA_BLOCK_HEADER_SIZE_MAX;
+	uint8_t out[LZMA_BLOCK_HEADER_SIZE_MAX];
+
+
+	// Filter ID outside of valid range
+	assert_lzma_ret(lzma_filter_flags_encode(&bad_filter, out, &out_pos,
+			out_size), LZMA_PROG_ERROR);
+	out_pos = 0;
+	bad_filter.id = LZMA_VLI_MAX + 1;
+	assert_lzma_ret(lzma_filter_flags_encode(&bad_filter, out, &out_pos,
+			out_size), LZMA_PROG_ERROR);
+	out_pos = 0;
+
+	// Invalid Filter ID
+	bad_filter.id = 2;
+	assert_lzma_ret(lzma_filter_flags_encode(&bad_filter, out, &out_pos,
+			out_size), LZMA_OPTIONS_ERROR);
+	out_pos = 0;
+
+	// Out size too small
+	if (lzma_filter_encoder_is_supported(LZMA_FILTER_LZMA2)) {
+		uint32_t bad_size = 0;
+
+		// First test with 0 output size
+		assert_lzma_ret(lzma_filter_flags_encode(
+				&lzma2_filter, out, &out_pos, 0),
+				LZMA_PROG_ERROR);
+
+		// Next calculate the size needed to encode and
+		// use less than that
+		assert_lzma_ret(lzma_filter_flags_size(&bad_size,
+				&lzma2_filter), LZMA_OK);
+
+		assert_lzma_ret(lzma_filter_flags_encode(
+				&lzma2_filter, out, &out_pos,
+				bad_size - 1), LZMA_PROG_ERROR);
+		out_pos = 0;
+	}
+
+	// Invalid options
+	if (lzma_filter_encoder_is_supported(LZMA_FILTER_DELTA)) {
+		bad_filter.id = LZMA_FILTER_DELTA;
+
+		// First test with NULL options
+		assert_lzma_ret(lzma_filter_flags_encode(&bad_filter, out,
+				&out_pos, out_size), LZMA_PROG_ERROR);
+		out_pos = 0;
+
+		// Next test with invalid options
+		lzma_options_delta bad_options = {
+			.dist = LZMA_DELTA_DIST_MAX + 1,
+			.type = LZMA_DELTA_TYPE_BYTE
+		};
+		bad_filter.options = &bad_options;
+
+		assert_lzma_ret(lzma_filter_flags_encode(&bad_filter, out,
+				&out_pos, out_size), LZMA_PROG_ERROR);
+	}
+#endif
+}
+
+
+// Helper function for test_lzma_filter_flags_decode.
+// Encodes the filter_in without using lzma_filter_flags_encode.
+// Leaves the specific assertions of filter_out options to the caller
+// because it is agnostic to the type of options used in the call
+#if defined(HAVE_ENCODERS) && defined(HAVE_DECODERS)
+static void
+verify_filter_flags_decode(lzma_filter *filter_in, lzma_filter *filter_out)
+{
+	uint32_t total_size = 0;
+
+	assert_lzma_ret(lzma_filter_flags_size(&total_size, filter_in),
+			LZMA_OK);
+	assert_uint(total_size, >, 0);
+	uint8_t *filter_flag_buffer = tuktest_malloc(total_size);
+
+	uint32_t properties_size = 0;
+	size_t out_pos = 0;
+	size_t in_pos = 0;
+	assert_lzma_ret(lzma_properties_size(&properties_size, filter_in),
+			LZMA_OK);
+	assert_lzma_ret(lzma_vli_encode(filter_in->id, NULL,
+			filter_flag_buffer, &out_pos, total_size), LZMA_OK);
+	assert_lzma_ret(lzma_vli_encode(properties_size, NULL,
+			filter_flag_buffer, &out_pos, total_size),
+			LZMA_OK);
+	assert_lzma_ret(lzma_properties_encode(filter_in,
+			filter_flag_buffer + out_pos), LZMA_OK);
+	assert_lzma_ret(lzma_filter_flags_decode(filter_out, NULL,
+			filter_flag_buffer, &in_pos, total_size),
+			LZMA_OK);
+	assert_uint_eq(filter_in->id, filter_out->id);
+}
+#endif
+
+
+static void
+test_lzma_filter_flags_decode(void)
+{
+#if !defined(HAVE_ENCODERS) || !defined(HAVE_DECODERS)
+	assert_skip("Encoder or decoder support disabled");
+#else
+	// For each filter, only run the decoder test if both the encoder
+	// and decoder are enabled. This is because verify_filter_flags_decode
+	// uses lzma_filter_flags_size which requires the encoder.
+	if (lzma_filter_decoder_is_supported(LZMA_FILTER_LZMA2) &&
+			lzma_filter_encoder_is_supported(LZMA_FILTER_LZMA2)) {
+		lzma_filter lzma2_decoded = { LZMA_FILTER_LZMA2, NULL };
+
+		verify_filter_flags_decode(&lzma2_filter, &lzma2_decoded);
+
+		lzma_options_lzma *expected = lzma2_filter.options;
+		lzma_options_lzma *decoded = lzma2_decoded.options;
+
+		// Only the dictionary size is encoded and decoded
+		// so only compare those
+		assert_uint_eq(decoded->dict_size, expected->dict_size);
+
+		// The decoded options must be freed by the caller
+		free(decoded);
+	}
+
+	const uint32_t bcj_array_size = ARRAY_SIZE(bcj_filters_decoders);
+	for (uint32_t i = 0; i < bcj_array_size; i++) {
+		if (lzma_filter_encoder_is_supported(
+				bcj_filters_decoders[i].id)) {
+			lzma_filter bcj_decoded = {
+					bcj_filters_decoders[i].id, NULL };
+
+			lzma_filter bcj_encoded = {
+					bcj_filters_decoders[i].id, NULL };
+
+			// First test without options
+			verify_filter_flags_decode(&bcj_encoded,
+					&bcj_decoded);
+			assert_true(bcj_decoded.options == NULL);
+
+			// Next test with offset
+			lzma_options_bcj options = {
+				.start_offset = 257
+			};
+
+			bcj_encoded.options = &options;
+			verify_filter_flags_decode(&bcj_encoded,
+					&bcj_decoded);
+			lzma_options_bcj *decoded_opts = bcj_decoded.options;
+			assert_uint_eq(decoded_opts->start_offset,
+					options.start_offset);
+			free(decoded_opts);
+		}
+	}
+
+	if (lzma_filter_decoder_is_supported(LZMA_FILTER_DELTA) &&
+			lzma_filter_encoder_is_supported(LZMA_FILTER_DELTA)) {
+		lzma_filter delta_decoded = { LZMA_FILTER_DELTA, NULL };
+
+		verify_filter_flags_decode(&delta_filter, &delta_decoded);
+		lzma_options_delta *expected = delta_filter.options;
+		lzma_options_delta *decoded = delta_decoded.options;
+		assert_uint_eq(expected->dist, decoded->dist);
+		assert_uint_eq(expected->type, decoded->type);
+
+		free(decoded);
+	}
+
+	// Test expected failing cases
+	uint8_t bad_encoded_filter[LZMA_BLOCK_HEADER_SIZE_MAX];
+	lzma_filter bad_filter;
+
+	// Filter ID outside of valid range
+	lzma_vli bad_filter_id = LZMA_FILTER_RESERVED_START;
+	size_t bad_encoded_out_pos = 0;
+	size_t in_pos = 0;
+
+	assert_lzma_ret(lzma_vli_encode(bad_filter_id, NULL,
+			bad_encoded_filter, &bad_encoded_out_pos,
+			LZMA_BLOCK_HEADER_SIZE_MAX), LZMA_OK);
+
+	assert_lzma_ret(lzma_filter_flags_decode(&bad_filter, NULL,
+			bad_encoded_filter, &in_pos,
+			LZMA_BLOCK_HEADER_SIZE_MAX), LZMA_DATA_ERROR);
+
+	bad_encoded_out_pos = 0;
+	in_pos = 0;
+
+	// Invalid Filter ID
+	bad_filter_id = 2;
+	bad_encoded_out_pos = 0;
+	in_pos = 0;
+
+	assert_lzma_ret(lzma_vli_encode(bad_filter_id, NULL,
+			bad_encoded_filter, &bad_encoded_out_pos,
+			LZMA_BLOCK_HEADER_SIZE_MAX), LZMA_OK);
+
+	// Next encode Size of Properties with the value of 0
+	assert_lzma_ret(lzma_vli_encode(0, NULL,
+			bad_encoded_filter, &bad_encoded_out_pos,
+			LZMA_BLOCK_HEADER_SIZE_MAX), LZMA_OK);
+
+	// Decode should fail on bad Filter ID
+	assert_lzma_ret(lzma_filter_flags_decode(&bad_filter, NULL,
+			bad_encoded_filter, &in_pos,
+			LZMA_BLOCK_HEADER_SIZE_MAX), LZMA_OPTIONS_ERROR);
+	bad_encoded_out_pos = 0;
+	in_pos = 0;
+
+	// Outsize too small
+	// Encode the LZMA2 filter normally, but then set
+	// the out size when decoding as too small
+	if (lzma_filter_encoder_is_supported(LZMA_FILTER_LZMA2) &&
+			lzma_filter_decoder_is_supported(LZMA_FILTER_LZMA2)) {
+		uint32_t filter_flag_size = 0;
+		assert_lzma_ret(lzma_filter_flags_size(&filter_flag_size,
+				&lzma2_filter), LZMA_OK);
+
+		assert_lzma_ret(lzma_filter_flags_encode(&lzma2_filter,
+				bad_encoded_filter, &bad_encoded_out_pos,
+				LZMA_BLOCK_HEADER_SIZE_MAX), LZMA_OK);
+
+		assert_lzma_ret(lzma_filter_flags_decode(&bad_filter, NULL,
+				bad_encoded_filter, &in_pos,
+				filter_flag_size - 1), LZMA_DATA_ERROR);
+	}
+#endif
+}
+
+
+extern int
+main(int argc, char **argv)
+{
+	tuktest_start(argc, argv);
+
+#ifdef HAVE_ENCODERS
+	// Only init filter options if encoder is supported because decoder
+	// tests requires encoder support, so the decoder tests will only
+	// run if for a given filter both the encoder and decoder are enabled.
+	if (lzma_filter_encoder_is_supported(LZMA_FILTER_LZMA1)) {
+		lzma_options_lzma *options = tuktest_malloc(
+				sizeof(lzma_options_lzma));
+		lzma_lzma_preset(options, LZMA_PRESET_DEFAULT);
+		lzma1_filter.options = options;
+	}
+
+	if (lzma_filter_encoder_is_supported(LZMA_FILTER_LZMA2)) {
+		lzma_options_lzma *options = tuktest_malloc(
+				sizeof(lzma_options_lzma));
+		lzma_lzma_preset(options, LZMA_PRESET_DEFAULT);
+		lzma2_filter.options = options;
+	}
+
+	if (lzma_filter_encoder_is_supported(LZMA_FILTER_DELTA)) {
+		lzma_options_delta *options = tuktest_malloc(
+				sizeof(lzma_options_delta));
+		options->dist = LZMA_DELTA_DIST_MIN;
+		options->type = LZMA_DELTA_TYPE_BYTE;
+		delta_filter.options = options;
+	}
+#endif
+
+	tuktest_run(test_lzma_filter_flags_size);
+	tuktest_run(test_lzma_filter_flags_encode);
+	tuktest_run(test_lzma_filter_flags_decode);
+	return tuktest_end();
+}
diff --git a/tests/test_hardware.c b/tests/test_hardware.c
new file mode 100644
index 0000000..c72d9b2
--- /dev/null
+++ b/tests/test_hardware.c
@@ -0,0 +1,50 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       test_hardware.c
+/// \brief      Tests src/liblzma/api/lzma/hardware.h API functions
+///
+/// Since the output values of these functions are hardware dependent, these
+/// tests are trivial. They are simply used to detect errors and machines
+/// that these function are not supported on.
+//
+//  Author:     Jia Tan
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include "tests.h"
+#include "mythread.h"
+
+
+static void
+test_lzma_physmem(void)
+{
+	// NOTE: Use _skip instead of _fail because 0 can also mean that we
+	// don't know how to get this information on this operating system.
+	if (lzma_physmem() == 0)
+		assert_skip("Could not determine amount of physical memory");
+}
+
+
+static void
+test_lzma_cputhreads(void)
+{
+#ifndef MYTHREAD_ENABLED
+	assert_skip("Threading support disabled");
+#else
+	if (lzma_cputhreads() == 0)
+		assert_skip("Could not determine cpu core count");
+#endif
+}
+
+
+extern int
+main(int argc, char **argv)
+{
+	tuktest_start(argc, argv);
+	tuktest_run(test_lzma_physmem);
+	tuktest_run(test_lzma_cputhreads);
+	return tuktest_end();
+}
diff --git a/tests/test_index.c b/tests/test_index.c
new file mode 100644
index 0000000..31b958d
--- /dev/null
+++ b/tests/test_index.c
@@ -0,0 +1,736 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       test_index.c
+/// \brief      Tests functions handling the lzma_index structure
+//
+//  Author:     Lasse Collin
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include "tests.h"
+
+#define MEMLIMIT (LZMA_VLI_C(1) << 20)
+
+#define SMALL_COUNT 3
+#define BIG_COUNT 5555
+
+
+static lzma_index *
+create_empty(void)
+{
+	lzma_index *i = lzma_index_init(NULL);
+	expect(i != NULL);
+	return i;
+}
+
+
+static lzma_index *
+create_small(void)
+{
+	lzma_index *i = lzma_index_init(NULL);
+	expect(i != NULL);
+	expect(lzma_index_append(i, NULL, 101, 555) == LZMA_OK);
+	expect(lzma_index_append(i, NULL, 602, 777) == LZMA_OK);
+	expect(lzma_index_append(i, NULL, 804, 999) == LZMA_OK);
+	return i;
+}
+
+
+static lzma_index *
+create_big(void)
+{
+	lzma_index *i = lzma_index_init(NULL);
+	expect(i != NULL);
+
+	lzma_vli total_size = 0;
+	lzma_vli uncompressed_size = 0;
+
+	// Add pseudo-random sizes (but always the same size values).
+	uint32_t n = 11;
+	for (size_t j = 0; j < BIG_COUNT; ++j) {
+		n = 7019 * n + 7607;
+		const uint32_t t = n * 3011;
+		expect(lzma_index_append(i, NULL, t, n) == LZMA_OK);
+		total_size += (t + 3) & ~LZMA_VLI_C(3);
+		uncompressed_size += n;
+	}
+
+	expect(lzma_index_block_count(i) == BIG_COUNT);
+	expect(lzma_index_total_size(i) == total_size);
+	expect(lzma_index_uncompressed_size(i) == uncompressed_size);
+	expect(lzma_index_total_size(i) + lzma_index_size(i)
+				+ 2 * LZMA_STREAM_HEADER_SIZE
+			== lzma_index_stream_size(i));
+
+	return i;
+}
+
+
+static bool
+is_equal(const lzma_index *a, const lzma_index *b)
+{
+	// Compare only the Stream and Block sizes and offsets.
+	lzma_index_iter ra, rb;
+	lzma_index_iter_init(&ra, a);
+	lzma_index_iter_init(&rb, b);
+
+	while (true) {
+		bool reta = lzma_index_iter_next(&ra, LZMA_INDEX_ITER_ANY);
+		bool retb = lzma_index_iter_next(&rb, LZMA_INDEX_ITER_ANY);
+		if (reta)
+			return !(reta ^ retb);
+
+		if (ra.stream.number != rb.stream.number
+				|| ra.stream.block_count
+					!= rb.stream.block_count
+				|| ra.stream.compressed_offset
+					!= rb.stream.compressed_offset
+				|| ra.stream.uncompressed_offset
+					!= rb.stream.uncompressed_offset
+				|| ra.stream.compressed_size
+					!= rb.stream.compressed_size
+				|| ra.stream.uncompressed_size
+					!= rb.stream.uncompressed_size
+				|| ra.stream.padding
+					!= rb.stream.padding)
+			return false;
+
+		if (ra.stream.block_count == 0)
+			continue;
+
+		if (ra.block.number_in_file != rb.block.number_in_file
+				|| ra.block.compressed_file_offset
+					!= rb.block.compressed_file_offset
+				|| ra.block.uncompressed_file_offset
+					!= rb.block.uncompressed_file_offset
+				|| ra.block.number_in_stream
+					!= rb.block.number_in_stream
+				|| ra.block.compressed_stream_offset
+					!= rb.block.compressed_stream_offset
+				|| ra.block.uncompressed_stream_offset
+					!= rb.block.uncompressed_stream_offset
+				|| ra.block.uncompressed_size
+					!= rb.block.uncompressed_size
+				|| ra.block.unpadded_size
+					!= rb.block.unpadded_size
+				|| ra.block.total_size
+					!= rb.block.total_size)
+			return false;
+	}
+}
+
+
+static void
+test_equal(void)
+{
+	lzma_index *a = create_empty();
+	lzma_index *b = create_small();
+	lzma_index *c = create_big();
+	expect(a && b && c);
+
+	expect(is_equal(a, a));
+	expect(is_equal(b, b));
+	expect(is_equal(c, c));
+
+	expect(!is_equal(a, b));
+	expect(!is_equal(a, c));
+	expect(!is_equal(b, c));
+
+	lzma_index_end(a, NULL);
+	lzma_index_end(b, NULL);
+	lzma_index_end(c, NULL);
+}
+
+
+static void
+test_overflow(void)
+{
+	// Integer overflow tests
+	lzma_index *i = create_empty();
+
+	expect(lzma_index_append(i, NULL, LZMA_VLI_MAX - 5, 1234)
+			== LZMA_DATA_ERROR);
+
+	// TODO
+
+	lzma_index_end(i, NULL);
+}
+
+
+static void
+test_copy(const lzma_index *i)
+{
+	lzma_index *d = lzma_index_dup(i, NULL);
+	expect(d != NULL);
+	expect(is_equal(i, d));
+	lzma_index_end(d, NULL);
+}
+
+
+static void
+test_read(lzma_index *i)
+{
+	lzma_index_iter r;
+	lzma_index_iter_init(&r, i);
+
+	// Try twice so we see that rewinding works.
+	for (size_t j = 0; j < 2; ++j) {
+		lzma_vli total_size = 0;
+		lzma_vli uncompressed_size = 0;
+		lzma_vli stream_offset = LZMA_STREAM_HEADER_SIZE;
+		lzma_vli uncompressed_offset = 0;
+		uint32_t count = 0;
+
+		while (!lzma_index_iter_next(&r, LZMA_INDEX_ITER_BLOCK)) {
+			++count;
+
+			total_size += r.block.total_size;
+			uncompressed_size += r.block.uncompressed_size;
+
+			expect(r.block.compressed_file_offset
+					== stream_offset);
+			expect(r.block.uncompressed_file_offset
+					== uncompressed_offset);
+
+			stream_offset += r.block.total_size;
+			uncompressed_offset += r.block.uncompressed_size;
+		}
+
+		expect(lzma_index_total_size(i) == total_size);
+		expect(lzma_index_uncompressed_size(i) == uncompressed_size);
+		expect(lzma_index_block_count(i) == count);
+
+		lzma_index_iter_rewind(&r);
+	}
+}
+
+
+static void
+test_code(lzma_index *i)
+{
+#if defined(HAVE_ENCODERS) && defined(HAVE_DECODERS)
+	const size_t alloc_size = 128 * 1024;
+	uint8_t *buf = malloc(alloc_size);
+	expect(buf != NULL);
+
+	// Encode
+	lzma_stream strm = LZMA_STREAM_INIT;
+	expect(lzma_index_encoder(&strm, i) == LZMA_OK);
+	const lzma_vli index_size = lzma_index_size(i);
+	succeed(coder_loop(&strm, NULL, 0, buf, index_size,
+			LZMA_STREAM_END, LZMA_RUN));
+
+	// Decode
+	lzma_index *d;
+	expect(lzma_index_decoder(&strm, &d, MEMLIMIT) == LZMA_OK);
+	expect(d == NULL);
+	succeed(decoder_loop(&strm, buf, index_size));
+
+	expect(is_equal(i, d));
+
+	lzma_index_end(d, NULL);
+	lzma_end(&strm);
+
+	// Decode with hashing
+	lzma_index_hash *h = lzma_index_hash_init(NULL, NULL);
+	expect(h != NULL);
+	lzma_index_iter r;
+	lzma_index_iter_init(&r, i);
+	while (!lzma_index_iter_next(&r, LZMA_INDEX_ITER_BLOCK))
+		expect(lzma_index_hash_append(h, r.block.unpadded_size,
+				r.block.uncompressed_size) == LZMA_OK);
+	size_t pos = 0;
+	while (pos < index_size - 1)
+		expect(lzma_index_hash_decode(h, buf, &pos, pos + 1)
+				== LZMA_OK);
+	expect(lzma_index_hash_decode(h, buf, &pos, pos + 1)
+			== LZMA_STREAM_END);
+
+	lzma_index_hash_end(h, NULL);
+
+	// Encode buffer
+	size_t buf_pos = 1;
+	expect(lzma_index_buffer_encode(i, buf, &buf_pos, index_size)
+			== LZMA_BUF_ERROR);
+	expect(buf_pos == 1);
+
+	succeed(lzma_index_buffer_encode(i, buf, &buf_pos, index_size + 1));
+	expect(buf_pos == index_size + 1);
+
+	// Decode buffer
+	buf_pos = 1;
+	uint64_t memlimit = MEMLIMIT;
+	expect(lzma_index_buffer_decode(&d, &memlimit, NULL, buf, &buf_pos,
+			index_size) == LZMA_DATA_ERROR);
+	expect(buf_pos == 1);
+	expect(d == NULL);
+
+	succeed(lzma_index_buffer_decode(&d, &memlimit, NULL, buf, &buf_pos,
+			index_size + 1));
+	expect(buf_pos == index_size + 1);
+	expect(is_equal(i, d));
+
+	lzma_index_end(d, NULL);
+
+	free(buf);
+#else
+	(void)i;
+#endif
+}
+
+
+static void
+test_many(lzma_index *i)
+{
+	test_copy(i);
+	test_read(i);
+	test_code(i);
+}
+
+
+static void
+test_cat(void)
+{
+	lzma_index *a, *b, *c, *d, *e, *f;
+	lzma_index_iter r;
+
+	// Empty Indexes
+	a = create_empty();
+	b = create_empty();
+	expect(lzma_index_cat(a, b, NULL) == LZMA_OK);
+	expect(lzma_index_block_count(a) == 0);
+	expect(lzma_index_stream_size(a) == 2 * LZMA_STREAM_HEADER_SIZE + 8);
+	expect(lzma_index_file_size(a)
+			== 2 * (2 * LZMA_STREAM_HEADER_SIZE + 8));
+	lzma_index_iter_init(&r, a);
+	expect(lzma_index_iter_next(&r, LZMA_INDEX_ITER_BLOCK));
+
+	b = create_empty();
+	expect(lzma_index_cat(a, b, NULL) == LZMA_OK);
+	expect(lzma_index_block_count(a) == 0);
+	expect(lzma_index_stream_size(a) == 2 * LZMA_STREAM_HEADER_SIZE + 8);
+	expect(lzma_index_file_size(a)
+			== 3 * (2 * LZMA_STREAM_HEADER_SIZE + 8));
+
+	b = create_empty();
+	c = create_empty();
+	expect(lzma_index_stream_padding(b, 4) == LZMA_OK);
+	expect(lzma_index_cat(b, c, NULL) == LZMA_OK);
+	expect(lzma_index_block_count(b) == 0);
+	expect(lzma_index_stream_size(b) == 2 * LZMA_STREAM_HEADER_SIZE + 8);
+	expect(lzma_index_file_size(b)
+			== 2 * (2 * LZMA_STREAM_HEADER_SIZE + 8) + 4);
+
+	expect(lzma_index_stream_padding(a, 8) == LZMA_OK);
+	expect(lzma_index_cat(a, b, NULL) == LZMA_OK);
+	expect(lzma_index_block_count(a) == 0);
+	expect(lzma_index_stream_size(a) == 2 * LZMA_STREAM_HEADER_SIZE + 8);
+	expect(lzma_index_file_size(a)
+			== 5 * (2 * LZMA_STREAM_HEADER_SIZE + 8) + 4 + 8);
+
+	expect(lzma_index_iter_next(&r, LZMA_INDEX_ITER_BLOCK));
+	lzma_index_iter_rewind(&r);
+	expect(lzma_index_iter_next(&r, LZMA_INDEX_ITER_BLOCK));
+	lzma_index_end(a, NULL);
+
+	// Small Indexes
+	a = create_small();
+	lzma_vli stream_size = lzma_index_stream_size(a);
+	lzma_index_iter_init(&r, a);
+	for (int i = SMALL_COUNT; i >= 0; --i)
+		expect(!lzma_index_iter_next(&r, LZMA_INDEX_ITER_BLOCK)
+				^ (i == 0));
+
+	b = create_small();
+	expect(lzma_index_stream_padding(a, 4) == LZMA_OK);
+	expect(lzma_index_cat(a, b, NULL) == LZMA_OK);
+	expect(lzma_index_file_size(a) == stream_size * 2 + 4);
+	expect(lzma_index_stream_size(a) > stream_size);
+	expect(lzma_index_stream_size(a) < stream_size * 2);
+	for (int i = SMALL_COUNT; i >= 0; --i)
+		expect(!lzma_index_iter_next(&r, LZMA_INDEX_ITER_BLOCK)
+				^ (i == 0));
+
+	lzma_index_iter_rewind(&r);
+	for (int i = SMALL_COUNT * 2; i >= 0; --i)
+		expect(!lzma_index_iter_next(&r, LZMA_INDEX_ITER_BLOCK)
+				^ (i == 0));
+
+	b = create_small();
+	c = create_small();
+	expect(lzma_index_stream_padding(b, 8) == LZMA_OK);
+	expect(lzma_index_cat(b, c, NULL) == LZMA_OK);
+	expect(lzma_index_stream_padding(a, 12) == LZMA_OK);
+	expect(lzma_index_cat(a, b, NULL) == LZMA_OK);
+	expect(lzma_index_file_size(a) == stream_size * 4 + 4 + 8 + 12);
+
+	expect(lzma_index_block_count(a) == SMALL_COUNT * 4);
+	for (int i = SMALL_COUNT * 2; i >= 0; --i)
+		expect(!lzma_index_iter_next(&r, LZMA_INDEX_ITER_BLOCK)
+				^ (i == 0));
+
+	lzma_index_iter_rewind(&r);
+	for (int i = SMALL_COUNT * 4; i >= 0; --i)
+		expect(!lzma_index_iter_next(&r, LZMA_INDEX_ITER_BLOCK)
+				^ (i == 0));
+
+	lzma_index_end(a, NULL);
+
+	// Mix of empty and small
+	a = create_empty();
+	b = create_small();
+	expect(lzma_index_stream_padding(a, 4) == LZMA_OK);
+	expect(lzma_index_cat(a, b, NULL) == LZMA_OK);
+	lzma_index_iter_init(&r, a);
+	for (int i = SMALL_COUNT; i >= 0; --i)
+		expect(!lzma_index_iter_next(&r, LZMA_INDEX_ITER_BLOCK)
+				^ (i == 0));
+
+	lzma_index_end(a, NULL);
+
+	// Big Indexes
+	a = create_big();
+	stream_size = lzma_index_stream_size(a);
+	b = create_big();
+	expect(lzma_index_stream_padding(a, 4) == LZMA_OK);
+	expect(lzma_index_cat(a, b, NULL) == LZMA_OK);
+	expect(lzma_index_file_size(a) == stream_size * 2 + 4);
+	expect(lzma_index_stream_size(a) > stream_size);
+	expect(lzma_index_stream_size(a) < stream_size * 2);
+
+	b = create_big();
+	c = create_big();
+	expect(lzma_index_stream_padding(b, 8) == LZMA_OK);
+	expect(lzma_index_cat(b, c, NULL) == LZMA_OK);
+	expect(lzma_index_stream_padding(a, 12) == LZMA_OK);
+	expect(lzma_index_cat(a, b, NULL) == LZMA_OK);
+	expect(lzma_index_file_size(a) == stream_size * 4 + 4 + 8 + 12);
+
+	lzma_index_iter_init(&r, a);
+	for (int i = BIG_COUNT * 4; i >= 0; --i)
+		expect(!lzma_index_iter_next(&r, LZMA_INDEX_ITER_BLOCK)
+				^ (i == 0));
+
+	lzma_index_end(a, NULL);
+
+	// Test for the bug fix 3d5a99ca373a4e86faf671226ca6487febb9eeac.
+	// lzma_index_checks would previously only return the checks
+	// for the last stream that was concatenated to the index.
+	d = create_small();
+	e = create_small();
+	f = create_small();
+
+	lzma_stream_flags crc32_flags = {
+		.backward_size = LZMA_BACKWARD_SIZE_MIN,
+		.check = LZMA_CHECK_CRC32
+	};
+	expect(lzma_index_stream_flags(d, &crc32_flags) == LZMA_OK);
+
+	lzma_stream_flags crc64_flags = {
+		.backward_size = LZMA_BACKWARD_SIZE_MIN,
+		.check = LZMA_CHECK_CRC64
+	};
+	expect(lzma_index_stream_flags(e, &crc64_flags) == LZMA_OK);
+
+	lzma_stream_flags sha256_flags = {
+		.backward_size = LZMA_BACKWARD_SIZE_MIN,
+		.check = LZMA_CHECK_SHA256
+	};
+	expect(lzma_index_stream_flags(f, &sha256_flags) == LZMA_OK);
+
+	expect(lzma_index_checks(d) == (1U << LZMA_CHECK_CRC32));
+	expect(lzma_index_checks(e) == (1U << LZMA_CHECK_CRC64));
+	expect(lzma_index_checks(f) == (1U << LZMA_CHECK_SHA256));
+
+	expect(lzma_index_cat(d, e, NULL) == LZMA_OK);
+	expect(lzma_index_checks(d) == ((1U << LZMA_CHECK_CRC32) |
+			(1U << LZMA_CHECK_CRC64)));
+
+	expect(lzma_index_cat(d, f, NULL) == LZMA_OK);
+	expect(lzma_index_checks(d) == ((1U << LZMA_CHECK_CRC32) |
+			(1U << LZMA_CHECK_CRC64) |
+			(1U << LZMA_CHECK_SHA256)));
+
+	lzma_index_end(d, NULL);
+
+}
+
+
+static void
+test_locate(void)
+{
+	lzma_index *i = lzma_index_init(NULL);
+	expect(i != NULL);
+	lzma_index_iter r;
+	lzma_index_iter_init(&r, i);
+
+	// Cannot locate anything from an empty Index.
+	expect(lzma_index_iter_locate(&r, 0));
+	expect(lzma_index_iter_locate(&r, 555));
+
+	// One empty Record: nothing is found since there's no uncompressed
+	// data.
+	expect(lzma_index_append(i, NULL, 16, 0) == LZMA_OK);
+	expect(lzma_index_iter_locate(&r, 0));
+
+	// Non-empty Record and we can find something.
+	expect(lzma_index_append(i, NULL, 32, 5) == LZMA_OK);
+	expect(!lzma_index_iter_locate(&r, 0));
+	expect(r.block.total_size == 32);
+	expect(r.block.uncompressed_size == 5);
+	expect(r.block.compressed_file_offset
+			== LZMA_STREAM_HEADER_SIZE + 16);
+	expect(r.block.uncompressed_file_offset == 0);
+
+	// Still cannot find anything past the end.
+	expect(lzma_index_iter_locate(&r, 5));
+
+	// Add the third Record.
+	expect(lzma_index_append(i, NULL, 40, 11) == LZMA_OK);
+
+	expect(!lzma_index_iter_locate(&r, 0));
+	expect(r.block.total_size == 32);
+	expect(r.block.uncompressed_size == 5);
+	expect(r.block.compressed_file_offset
+			== LZMA_STREAM_HEADER_SIZE + 16);
+	expect(r.block.uncompressed_file_offset == 0);
+
+	expect(!lzma_index_iter_next(&r, LZMA_INDEX_ITER_BLOCK));
+	expect(r.block.total_size == 40);
+	expect(r.block.uncompressed_size == 11);
+	expect(r.block.compressed_file_offset
+			== LZMA_STREAM_HEADER_SIZE + 16 + 32);
+	expect(r.block.uncompressed_file_offset == 5);
+
+	expect(!lzma_index_iter_locate(&r, 2));
+	expect(r.block.total_size == 32);
+	expect(r.block.uncompressed_size == 5);
+	expect(r.block.compressed_file_offset
+			== LZMA_STREAM_HEADER_SIZE + 16);
+	expect(r.block.uncompressed_file_offset == 0);
+
+	expect(!lzma_index_iter_locate(&r, 5));
+	expect(r.block.total_size == 40);
+	expect(r.block.uncompressed_size == 11);
+	expect(r.block.compressed_file_offset
+			== LZMA_STREAM_HEADER_SIZE + 16 + 32);
+	expect(r.block.uncompressed_file_offset == 5);
+
+	expect(!lzma_index_iter_locate(&r, 5 + 11 - 1));
+	expect(r.block.total_size == 40);
+	expect(r.block.uncompressed_size == 11);
+	expect(r.block.compressed_file_offset
+			== LZMA_STREAM_HEADER_SIZE + 16 + 32);
+	expect(r.block.uncompressed_file_offset == 5);
+
+	expect(lzma_index_iter_locate(&r, 5 + 11));
+	expect(lzma_index_iter_locate(&r, 5 + 15));
+
+	// Large Index
+	lzma_index_end(i, NULL);
+	i = lzma_index_init(NULL);
+	expect(i != NULL);
+	lzma_index_iter_init(&r, i);
+
+	for (size_t n = 4; n <= 4 * 5555; n += 4)
+		expect(lzma_index_append(i, NULL, n + 8, n) == LZMA_OK);
+
+	expect(lzma_index_block_count(i) == 5555);
+
+	// First Record
+	expect(!lzma_index_iter_locate(&r, 0));
+	expect(r.block.total_size == 4 + 8);
+	expect(r.block.uncompressed_size == 4);
+	expect(r.block.compressed_file_offset == LZMA_STREAM_HEADER_SIZE);
+	expect(r.block.uncompressed_file_offset == 0);
+
+	expect(!lzma_index_iter_locate(&r, 3));
+	expect(r.block.total_size == 4 + 8);
+	expect(r.block.uncompressed_size == 4);
+	expect(r.block.compressed_file_offset == LZMA_STREAM_HEADER_SIZE);
+	expect(r.block.uncompressed_file_offset == 0);
+
+	// Second Record
+	expect(!lzma_index_iter_locate(&r, 4));
+	expect(r.block.total_size == 2 * 4 + 8);
+	expect(r.block.uncompressed_size == 2 * 4);
+	expect(r.block.compressed_file_offset
+			== LZMA_STREAM_HEADER_SIZE + 4 + 8);
+	expect(r.block.uncompressed_file_offset == 4);
+
+	// Last Record
+	expect(!lzma_index_iter_locate(
+			&r, lzma_index_uncompressed_size(i) - 1));
+	expect(r.block.total_size == 4 * 5555 + 8);
+	expect(r.block.uncompressed_size == 4 * 5555);
+	expect(r.block.compressed_file_offset == lzma_index_total_size(i)
+			+ LZMA_STREAM_HEADER_SIZE - 4 * 5555 - 8);
+	expect(r.block.uncompressed_file_offset
+			== lzma_index_uncompressed_size(i) - 4 * 5555);
+
+	// Allocation chunk boundaries. See INDEX_GROUP_SIZE in
+	// liblzma/common/index.c.
+	const size_t group_multiple = 256 * 4;
+	const size_t radius = 8;
+	const size_t start = group_multiple - radius;
+	lzma_vli ubase = 0;
+	lzma_vli tbase = 0;
+	size_t n;
+	for (n = 1; n < start; ++n) {
+		ubase += n * 4;
+		tbase += n * 4 + 8;
+	}
+
+	while (n < start + 2 * radius) {
+		expect(!lzma_index_iter_locate(&r, ubase + n * 4));
+
+		expect(r.block.compressed_file_offset == tbase + n * 4 + 8
+				+ LZMA_STREAM_HEADER_SIZE);
+		expect(r.block.uncompressed_file_offset == ubase + n * 4);
+
+		tbase += n * 4 + 8;
+		ubase += n * 4;
+		++n;
+
+		expect(r.block.total_size == n * 4 + 8);
+		expect(r.block.uncompressed_size == n * 4);
+	}
+
+	// Do it also backwards.
+	while (n > start) {
+		expect(!lzma_index_iter_locate(&r, ubase + (n - 1) * 4));
+
+		expect(r.block.total_size == n * 4 + 8);
+		expect(r.block.uncompressed_size == n * 4);
+
+		--n;
+		tbase -= n * 4 + 8;
+		ubase -= n * 4;
+
+		expect(r.block.compressed_file_offset == tbase + n * 4 + 8
+				+ LZMA_STREAM_HEADER_SIZE);
+		expect(r.block.uncompressed_file_offset == ubase + n * 4);
+	}
+
+	// Test locating in concatenated Index.
+	lzma_index_end(i, NULL);
+	i = lzma_index_init(NULL);
+	expect(i != NULL);
+	lzma_index_iter_init(&r, i);
+	for (n = 0; n < group_multiple; ++n)
+		expect(lzma_index_append(i, NULL, 8, 0) == LZMA_OK);
+	expect(lzma_index_append(i, NULL, 16, 1) == LZMA_OK);
+	expect(!lzma_index_iter_locate(&r, 0));
+	expect(r.block.total_size == 16);
+	expect(r.block.uncompressed_size == 1);
+	expect(r.block.compressed_file_offset
+			== LZMA_STREAM_HEADER_SIZE + group_multiple * 8);
+	expect(r.block.uncompressed_file_offset == 0);
+
+	lzma_index_end(i, NULL);
+}
+
+
+static void
+test_corrupt(void)
+{
+#if defined(HAVE_ENCODERS) && defined(HAVE_DECODERS)
+	const size_t alloc_size = 128 * 1024;
+	uint8_t *buf = malloc(alloc_size);
+	expect(buf != NULL);
+	lzma_stream strm = LZMA_STREAM_INIT;
+
+	lzma_index *i = create_empty();
+	expect(lzma_index_append(i, NULL, 0, 1) == LZMA_PROG_ERROR);
+	lzma_index_end(i, NULL);
+
+	// Create a valid Index and corrupt it in different ways.
+	i = create_small();
+	expect(lzma_index_encoder(&strm, i) == LZMA_OK);
+	succeed(coder_loop(&strm, NULL, 0, buf, 20,
+			LZMA_STREAM_END, LZMA_RUN));
+	lzma_index_end(i, NULL);
+
+	// Wrong Index Indicator
+	buf[0] ^= 1;
+	expect(lzma_index_decoder(&strm, &i, MEMLIMIT) == LZMA_OK);
+	succeed(decoder_loop_ret(&strm, buf, 1, LZMA_DATA_ERROR));
+	buf[0] ^= 1;
+
+	// Wrong Number of Records and thus CRC32 fails.
+	--buf[1];
+	expect(lzma_index_decoder(&strm, &i, MEMLIMIT) == LZMA_OK);
+	succeed(decoder_loop_ret(&strm, buf, 10, LZMA_DATA_ERROR));
+	++buf[1];
+
+	// Padding not NULs
+	buf[15] ^= 1;
+	expect(lzma_index_decoder(&strm, &i, MEMLIMIT) == LZMA_OK);
+	succeed(decoder_loop_ret(&strm, buf, 16, LZMA_DATA_ERROR));
+
+	lzma_end(&strm);
+	free(buf);
+#endif
+}
+
+
+// Allocator that succeeds for the first two allocation but fails the rest.
+static void *
+my_alloc(void *opaque, size_t a, size_t b)
+{
+	(void)opaque;
+
+	static unsigned count = 0;
+	if (++count > 2)
+		return NULL;
+
+	return malloc(a * b);
+}
+
+static const lzma_allocator my_allocator = { &my_alloc, NULL, NULL };
+
+
+int
+main(void)
+{
+	test_equal();
+
+	test_overflow();
+
+	lzma_index *i = create_empty();
+	test_many(i);
+	lzma_index_end(i, NULL);
+
+	i = create_small();
+	test_many(i);
+	lzma_index_end(i, NULL);
+
+	i = create_big();
+	test_many(i);
+	lzma_index_end(i, NULL);
+
+	test_cat();
+
+	test_locate();
+
+	test_corrupt();
+
+	// Test for the bug fix 21515d79d778b8730a434f151b07202d52a04611:
+	// liblzma: Fix lzma_index_dup() for empty Streams.
+	i = create_empty();
+	expect(lzma_index_stream_padding(i, 4) == LZMA_OK);
+	test_copy(i);
+	lzma_index_end(i, NULL);
+
+	// Test for the bug fix 3bf857edfef51374f6f3fffae3d817f57d3264a0:
+	// liblzma: Fix a memory leak in error path of lzma_index_dup().
+	// Use Valgrind to see that there are no leaks.
+	i = create_small();
+	expect(lzma_index_dup(i, &my_allocator) == NULL);
+	lzma_index_end(i, NULL);
+
+	return 0;
+}
diff --git a/tests/test_index_hash.c b/tests/test_index_hash.c
new file mode 100644
index 0000000..f3c6e8f
--- /dev/null
+++ b/tests/test_index_hash.c
@@ -0,0 +1,386 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       test_index_hash.c
+/// \brief      Tests src/liblzma/common/index_hash.c API functions
+///
+/// \note       No test included for lzma_index_hash_end since it
+///             would be trivial unless tested for memory leaks
+///             with something like valgrind
+//
+//  Author:     Jia Tan
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include "tests.h"
+
+// Needed for UNPADDED_SIZE_MIN and UNPADDED_SIZE_MAX macro definitions
+// and index_size and vli_ceil4 helper functions
+#include "common/index.h"
+
+
+static void
+test_lzma_index_hash_init(void)
+{
+#ifndef HAVE_DECODERS
+	assert_skip("Decoder support disabled");
+#else
+	// First test with NULL index_hash.
+	// This should create a fresh index_hash.
+	lzma_index_hash *index_hash = lzma_index_hash_init(NULL, NULL);
+	assert_true(index_hash != NULL);
+
+	// Next test with non-NULL index_hash.
+	lzma_index_hash *second_hash = lzma_index_hash_init(index_hash, NULL);
+
+	// It should not create a new index_hash pointer.
+	// Instead it must just re-init the first index_hash.
+	assert_true(index_hash == second_hash);
+
+	lzma_index_hash_end(index_hash, NULL);
+#endif
+}
+
+
+static void
+test_lzma_index_hash_append(void)
+{
+#ifndef HAVE_DECODERS
+	assert_skip("Decoder support disabled");
+#else
+	// Test all invalid parameters
+	assert_lzma_ret(lzma_index_hash_append(NULL, 0, 0),
+			LZMA_PROG_ERROR);
+
+	// Test NULL index_hash
+	assert_lzma_ret(lzma_index_hash_append(NULL, UNPADDED_SIZE_MIN,
+			LZMA_VLI_MAX), LZMA_PROG_ERROR);
+
+	// Test with invalid Unpadded Size
+	lzma_index_hash *index_hash = lzma_index_hash_init(NULL, NULL);
+	assert_true(index_hash != NULL);
+	assert_lzma_ret(lzma_index_hash_append(index_hash,
+			UNPADDED_SIZE_MIN - 1, LZMA_VLI_MAX),
+			LZMA_PROG_ERROR);
+
+	// Test with invalid Uncompressed Size
+	assert_lzma_ret(lzma_index_hash_append(index_hash,
+			UNPADDED_SIZE_MIN, LZMA_VLI_MAX + 1),
+			LZMA_PROG_ERROR);
+
+	// First append a Record describing a small Block.
+	// This should succeed.
+	assert_lzma_ret(lzma_index_hash_append(index_hash,
+			UNPADDED_SIZE_MIN, 1), LZMA_OK);
+
+	// Append another small Record.
+	assert_lzma_ret(lzma_index_hash_append(index_hash,
+			UNPADDED_SIZE_MIN, 1), LZMA_OK);
+
+	// Append a Record that would cause the compressed size to grow
+	// too big
+	assert_lzma_ret(lzma_index_hash_append(index_hash,
+			UNPADDED_SIZE_MAX, 1), LZMA_DATA_ERROR);
+
+	lzma_index_hash_end(index_hash, NULL);
+#endif
+}
+
+
+#if defined(HAVE_ENCODERS) && defined(HAVE_DECODERS)
+// Fill an index_hash with unpadded and uncompressed VLIs
+// by calling lzma_index_hash_append
+static void
+fill_index_hash(lzma_index_hash *index_hash, const lzma_vli *unpadded_sizes,
+		const lzma_vli *uncomp_sizes, uint32_t block_count)
+{
+	for (uint32_t i = 0; i < block_count; ++i)
+		assert_lzma_ret(lzma_index_hash_append(index_hash,
+			unpadded_sizes[i], uncomp_sizes[i]), LZMA_OK);
+}
+
+
+// Set the contents of buf to the expected Index based on the
+// .xz specification. This needs the unpadded and uncompressed VLIs
+// to correctly create the Index.
+static void
+generate_index(uint8_t *buf, const lzma_vli *unpadded_sizes,
+		const lzma_vli *uncomp_sizes, uint32_t block_count,
+		size_t index_max_size)
+{
+	size_t in_pos = 0;
+	size_t out_pos = 0;
+
+	// First set Index Indicator
+	buf[out_pos++] = INDEX_INDICATOR;
+
+	// Next write out Number of Records
+	assert_lzma_ret(lzma_vli_encode(block_count, &in_pos, buf,
+			&out_pos, index_max_size), LZMA_STREAM_END);
+
+	// Next write out each Record.
+	// A Record consists of Unpadded Size and Uncompressed Size
+	// written next to each other as VLIs.
+	for (uint32_t i = 0; i < block_count; ++i) {
+		in_pos = 0;
+		assert_lzma_ret(lzma_vli_encode(unpadded_sizes[i], &in_pos,
+			buf, &out_pos, index_max_size), LZMA_STREAM_END);
+		in_pos = 0;
+		assert_lzma_ret(lzma_vli_encode(uncomp_sizes[i], &in_pos,
+			buf, &out_pos, index_max_size), LZMA_STREAM_END);
+	}
+
+	// Add Index Padding
+	lzma_vli rounded_out_pos = vli_ceil4(out_pos);
+	memzero(buf + out_pos, rounded_out_pos - out_pos);
+	out_pos = rounded_out_pos;
+
+	// Add the CRC32
+	write32le(buf + out_pos, lzma_crc32(buf, out_pos, 0));
+	out_pos += 4;
+
+	assert_uint_eq(out_pos, index_max_size);
+}
+#endif
+
+
+static void
+test_lzma_index_hash_decode(void)
+{
+#if !defined(HAVE_ENCODERS) || !defined(HAVE_DECODERS)
+	assert_skip("Encoder or decoder support disabled");
+#else
+	lzma_index_hash *index_hash = lzma_index_hash_init(NULL, NULL);
+	assert_true(index_hash != NULL);
+
+	size_t in_pos = 0;
+
+	// Six valid values for the Unpadded Size fields in an Index
+	const lzma_vli unpadded_sizes[6] = {
+		UNPADDED_SIZE_MIN,
+		1000,
+		4000,
+		8000,
+		16000,
+		32000
+	};
+
+	// Six valid values for the Uncompressed Size fields in an Index
+	const lzma_vli uncomp_sizes[6] = {
+		1,
+		500,
+		8000,
+		20,
+		1,
+		500
+	};
+
+	// Add two Records to an index_hash
+	fill_index_hash(index_hash, unpadded_sizes, uncomp_sizes, 2);
+
+	const lzma_vli size_two_records = lzma_index_hash_size(index_hash);
+	assert_uint(size_two_records, >, 0);
+	uint8_t *index_two_records = tuktest_malloc(size_two_records);
+
+	generate_index(index_two_records, unpadded_sizes, uncomp_sizes, 2,
+			size_two_records);
+
+	// First test for basic buffer size error
+	in_pos = size_two_records + 1;
+	assert_lzma_ret(lzma_index_hash_decode(index_hash,
+			index_two_records, &in_pos,
+			size_two_records), LZMA_BUF_ERROR);
+
+	// Next test for invalid Index Indicator
+	in_pos = 0;
+	index_two_records[0] ^= 1;
+	assert_lzma_ret(lzma_index_hash_decode(index_hash,
+			index_two_records, &in_pos,
+			size_two_records), LZMA_DATA_ERROR);
+	index_two_records[0] ^= 1;
+
+	// Next verify the index_hash as expected
+	in_pos = 0;
+	assert_lzma_ret(lzma_index_hash_decode(index_hash,
+			index_two_records, &in_pos,
+			size_two_records), LZMA_STREAM_END);
+
+	// Next test an index_hash with three Records
+	index_hash = lzma_index_hash_init(index_hash, NULL);
+	fill_index_hash(index_hash, unpadded_sizes, uncomp_sizes, 3);
+
+	const lzma_vli size_three_records = lzma_index_hash_size(
+			index_hash);
+	assert_uint(size_three_records, >, 0);
+	uint8_t *index_three_records = tuktest_malloc(size_three_records);
+
+	generate_index(index_three_records, unpadded_sizes, uncomp_sizes,
+			3, size_three_records);
+
+	in_pos = 0;
+	assert_lzma_ret(lzma_index_hash_decode(index_hash,
+			index_three_records, &in_pos,
+			size_three_records), LZMA_STREAM_END);
+
+	// Next test an index_hash with five Records
+	index_hash = lzma_index_hash_init(index_hash, NULL);
+	fill_index_hash(index_hash, unpadded_sizes, uncomp_sizes, 5);
+
+	const lzma_vli size_five_records = lzma_index_hash_size(
+			index_hash);
+	assert_uint(size_five_records, >, 0);
+	uint8_t *index_five_records = tuktest_malloc(size_five_records);
+
+	generate_index(index_five_records, unpadded_sizes, uncomp_sizes, 5,
+			size_five_records);
+
+	// Instead of testing all input at once, give input
+	// one byte at a time
+	in_pos = 0;
+	for (lzma_vli i = 0; i < size_five_records - 1; ++i) {
+		assert_lzma_ret(lzma_index_hash_decode(index_hash,
+				index_five_records, &in_pos, in_pos + 1),
+				LZMA_OK);
+	}
+
+	// Last byte should return LZMA_STREAM_END
+	assert_lzma_ret(lzma_index_hash_decode(index_hash,
+			index_five_records, &in_pos,
+			in_pos + 1), LZMA_STREAM_END);
+
+	// Next test if the index_hash is given an incorrect Unpadded
+	// Size. Should detect and report LZMA_DATA_ERROR
+	index_hash = lzma_index_hash_init(index_hash, NULL);
+	fill_index_hash(index_hash, unpadded_sizes, uncomp_sizes, 5);
+	// The sixth Record will have an invalid Unpadded Size
+	assert_lzma_ret(lzma_index_hash_append(index_hash,
+			unpadded_sizes[5] + 1,
+			uncomp_sizes[5]), LZMA_OK);
+
+	const lzma_vli size_six_records = lzma_index_hash_size(
+			index_hash);
+
+	assert_uint(size_six_records, >, 0);
+	uint8_t *index_six_records = tuktest_malloc(size_six_records);
+
+	generate_index(index_six_records, unpadded_sizes, uncomp_sizes, 6,
+			size_six_records);
+	in_pos = 0;
+	assert_lzma_ret(lzma_index_hash_decode(index_hash,
+			index_six_records, &in_pos,
+			size_six_records), LZMA_DATA_ERROR);
+
+	// Next test if the Index is corrupt (invalid CRC32).
+	// Should detect and report LZMA_DATA_ERROR
+	index_hash = lzma_index_hash_init(index_hash, NULL);
+	fill_index_hash(index_hash, unpadded_sizes, uncomp_sizes, 2);
+
+	index_two_records[size_two_records - 1] ^= 1;
+
+	in_pos = 0;
+	assert_lzma_ret(lzma_index_hash_decode(index_hash,
+			index_two_records, &in_pos,
+			size_two_records), LZMA_DATA_ERROR);
+
+	// Next test with Index and index_hash struct not matching
+	// a Record
+	index_hash = lzma_index_hash_init(index_hash, NULL);
+	fill_index_hash(index_hash, unpadded_sizes, uncomp_sizes, 2);
+	// Recalculate Index with invalid Unpadded Size
+	const lzma_vli unpadded_sizes_invalid[2] = {
+		unpadded_sizes[0],
+		unpadded_sizes[1] + 1
+	};
+
+	generate_index(index_two_records, unpadded_sizes_invalid,
+			uncomp_sizes, 2, size_two_records);
+
+	in_pos = 0;
+	assert_lzma_ret(lzma_index_hash_decode(index_hash,
+			index_two_records, &in_pos,
+			size_two_records), LZMA_DATA_ERROR);
+
+	lzma_index_hash_end(index_hash, NULL);
+#endif
+}
+
+
+static void
+test_lzma_index_hash_size(void)
+{
+#ifndef HAVE_DECODERS
+	assert_skip("Decoder support disabled");
+#else
+	lzma_index_hash *index_hash = lzma_index_hash_init(NULL, NULL);
+	assert_true(index_hash != NULL);
+
+	// First test empty index_hash
+	// Expected size should be:
+	// Index Indicator - 1 byte
+	// Number of Records - 1 byte
+	// List of Records - 0 bytes
+	// Index Padding - 2 bytes
+	// CRC32 - 4 bytes
+	// Total - 8 bytes
+	assert_uint_eq(lzma_index_hash_size(index_hash), 8);
+
+	// Append a Record describing a small Block to the index_hash
+	assert_lzma_ret(lzma_index_hash_append(index_hash,
+			UNPADDED_SIZE_MIN, 1), LZMA_OK);
+
+	// Expected size should be:
+	// Index Indicator - 1 byte
+	// Number of Records - 1 byte
+	// List of Records - 2 bytes
+	// Index Padding - 0 bytes
+	// CRC32 - 4 bytes
+	// Total - 8 bytes
+	lzma_vli expected_size = 8;
+	assert_uint_eq(lzma_index_hash_size(index_hash), expected_size);
+
+	// Append additional small Record
+	assert_lzma_ret(lzma_index_hash_append(index_hash,
+			UNPADDED_SIZE_MIN, 1), LZMA_OK);
+
+	// Expected size should be:
+	// Index Indicator - 1 byte
+	// Number of Records - 1 byte
+	// List of Records - 4 bytes
+	// Index Padding - 2 bytes
+	// CRC32 - 4 bytes
+	// Total - 12 bytes
+	expected_size = 12;
+	assert_uint_eq(lzma_index_hash_size(index_hash), expected_size);
+
+	// Append a larger Record to the index_hash (3 bytes for each VLI)
+	const lzma_vli three_byte_vli = 0x10000;
+	assert_lzma_ret(lzma_index_hash_append(index_hash,
+			three_byte_vli, three_byte_vli), LZMA_OK);
+
+	// Expected size should be:
+	// Index Indicator - 1 byte
+	// Number of Records - 1 byte
+	// List of Records - 10 bytes
+	// Index Padding - 0 bytes
+	// CRC32 - 4 bytes
+	// Total - 16 bytes
+	expected_size = 16;
+	assert_uint_eq(lzma_index_hash_size(index_hash), expected_size);
+
+	lzma_index_hash_end(index_hash, NULL);
+#endif
+}
+
+
+extern int
+main(int argc, char **argv)
+{
+	tuktest_start(argc, argv);
+	tuktest_run(test_lzma_index_hash_init);
+	tuktest_run(test_lzma_index_hash_append);
+	tuktest_run(test_lzma_index_hash_decode);
+	tuktest_run(test_lzma_index_hash_size);
+	return tuktest_end();
+}
diff --git a/tests/test_lzip_decoder.c b/tests/test_lzip_decoder.c
new file mode 100644
index 0000000..306de74
--- /dev/null
+++ b/tests/test_lzip_decoder.c
@@ -0,0 +1,475 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       test_lzip_decoder.c
+/// \brief      Tests decoding lzip data
+//
+//  Author:     Jia Tan
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include "tests.h"
+
+#ifdef HAVE_LZIP_DECODER
+
+// Memlimit large enough to pass all of the test files
+#define MEMLIMIT (1U << 20)
+#define DECODE_CHUNK_SIZE 1024
+
+
+// The uncompressed data in the test files are short US-ASCII strings.
+// The tests check if the decompressed output is what it is expected to be.
+// Storing the strings here as text would break the tests on EBCDIC systems
+// and storing the strings as an array of hex values is inconvenient, so
+// store the CRC32 values of the expected data instead.
+//
+// CRC32 value of "Hello\nWorld\n"
+static const uint32_t hello_world_crc = 0x15A2A343;
+
+// CRC32 value of "Trailing garbage\n"
+static const uint32_t trailing_garbage_crc = 0x87081A60;
+
+
+// Helper function to decode a good file with no flags and plenty high memlimit
+static void
+basic_lzip_decode(const char *src, const uint32_t expected_crc) {
+	size_t file_size;
+	uint8_t *data = tuktest_file_from_srcdir(src, &file_size);
+	uint32_t checksum = 0;
+
+	lzma_stream strm = LZMA_STREAM_INIT;
+	assert_lzma_ret(lzma_lzip_decoder(&strm, MEMLIMIT, 0), LZMA_OK);
+
+	uint8_t *output_buffer = tuktest_malloc(DECODE_CHUNK_SIZE);
+
+	strm.next_in = data;
+	strm.next_out = output_buffer;
+	strm.avail_out = DECODE_CHUNK_SIZE;
+
+	// Feed 1 byte at a time to the decoder to look for any bugs
+	// when switching between decoding sequences
+	lzma_ret ret = LZMA_OK;
+	while (ret == LZMA_OK) {
+		strm.avail_in = 1;
+		ret = lzma_code(&strm, LZMA_RUN);
+		if (strm.avail_out == 0) {
+			checksum = lzma_crc32(output_buffer,
+					strm.next_out - output_buffer,
+					checksum);
+			// No need to free output_buffer because it will
+			// automatically be freed at the end of the test by
+			// tuktest.
+			output_buffer = tuktest_malloc(DECODE_CHUNK_SIZE);
+			strm.next_out = output_buffer;
+			strm.avail_out = DECODE_CHUNK_SIZE;
+		}
+	}
+
+	assert_lzma_ret(ret, LZMA_STREAM_END);
+	assert_uint_eq(strm.total_in, file_size);
+
+	checksum = lzma_crc32(output_buffer, strm.next_out - output_buffer,
+			checksum);
+	assert_uint_eq(checksum, expected_crc);
+
+	lzma_end(&strm);
+}
+
+
+static void
+test_options(void)
+{
+	// Test NULL stream
+	assert_lzma_ret(lzma_lzip_decoder(NULL, MEMLIMIT, 0),
+			LZMA_PROG_ERROR);
+
+	// Test invalid flags
+	lzma_stream strm = LZMA_STREAM_INIT;
+	assert_lzma_ret(lzma_lzip_decoder(&strm, MEMLIMIT, UINT32_MAX),
+			LZMA_OPTIONS_ERROR);
+	// Memlimit tests are done elsewhere
+}
+
+
+static void
+test_v0_decode(void) {
+	// This tests if liblzma can decode lzip version 0 files.
+	// lzip 1.17 and older can decompress this, but lzip 1.18
+	// and newer can no longer decode these files.
+	basic_lzip_decode("files/good-1-v0.lz", hello_world_crc);
+}
+
+
+static void
+test_v1_decode(void) {
+	// This tests decoding a basic lzip v1 file
+	basic_lzip_decode("files/good-1-v1.lz", hello_world_crc);
+}
+
+
+// Helper function to decode a good file with trailing bytes after
+// the lzip stream
+static void
+trailing_helper(const char *src, const uint32_t expected_data_checksum,
+		const uint32_t expected_trailing_checksum) {
+	size_t file_size;
+	uint32_t checksum = 0;
+	uint8_t *data = tuktest_file_from_srcdir(src, &file_size);
+	lzma_stream strm = LZMA_STREAM_INIT;
+	assert_lzma_ret(lzma_lzip_decoder(&strm, MEMLIMIT,
+			LZMA_CONCATENATED), LZMA_OK);
+
+	uint8_t *output_buffer = tuktest_malloc(DECODE_CHUNK_SIZE);
+
+	strm.next_in = data;
+	strm.next_out = output_buffer;
+	strm.avail_in = file_size;
+	strm.avail_out = DECODE_CHUNK_SIZE;
+
+	lzma_ret ret = LZMA_OK;
+	while (ret == LZMA_OK) {
+		ret = lzma_code(&strm, LZMA_RUN);
+		if (strm.avail_out == 0) {
+			checksum = lzma_crc32(output_buffer,
+					strm.next_out - output_buffer,
+					checksum);
+			// No need to free output_buffer because it will
+			// automatically be freed at the end of the test by
+			// tuktest.
+			output_buffer = tuktest_malloc(DECODE_CHUNK_SIZE);
+			strm.next_out = output_buffer;
+			strm.avail_out = DECODE_CHUNK_SIZE;
+		}
+	}
+
+	assert_lzma_ret(ret, LZMA_STREAM_END);
+	assert_uint(strm.total_in, <, file_size);
+
+	checksum = lzma_crc32(output_buffer,
+			strm.next_out - output_buffer,
+			checksum);
+
+	assert_uint_eq(checksum, expected_data_checksum);
+
+	// Trailing data should be readable from strm.next_in
+	checksum = lzma_crc32(strm.next_in, strm.avail_in, 0);
+	assert_uint_eq(checksum, expected_trailing_checksum);
+
+	lzma_end(&strm);
+}
+
+
+// Helper function to decode a bad file and compare to returned error to
+// what the caller expects
+static void
+decode_expect_error(const char *src, lzma_ret expected_error)
+{
+	lzma_stream strm = LZMA_STREAM_INIT;
+	size_t file_size;
+	uint8_t *data = tuktest_file_from_srcdir(src, &file_size);
+
+	assert_lzma_ret(lzma_lzip_decoder(&strm, MEMLIMIT,
+			LZMA_CONCATENATED), LZMA_OK);
+
+	uint8_t output_buffer[DECODE_CHUNK_SIZE];
+
+	strm.avail_in = file_size;
+	strm.next_in = data;
+	strm.avail_out = DECODE_CHUNK_SIZE;
+	strm.next_out = output_buffer;
+
+	lzma_ret ret = LZMA_OK;
+
+	while (ret == LZMA_OK) {
+		// Discard output since we are only looking for errors
+		strm.next_out = output_buffer;
+		strm.avail_out = DECODE_CHUNK_SIZE;
+		if (strm.avail_in == 0)
+			ret = lzma_code(&strm, LZMA_FINISH);
+		else
+			ret = lzma_code(&strm, LZMA_RUN);
+	}
+
+	assert_lzma_ret(ret, expected_error);
+	lzma_end(&strm);
+}
+
+
+static void
+test_v0_trailing(void) {
+	trailing_helper("files/good-1-v0-trailing-1.lz", hello_world_crc,
+			trailing_garbage_crc);
+}
+
+
+static void
+test_v1_trailing(void) {
+	trailing_helper("files/good-1-v1-trailing-1.lz", hello_world_crc,
+			trailing_garbage_crc);
+
+	// The second files/good-1-v1-trailing-2.lz will have the same
+	// expected output and trailing output as
+	// files/good-1-v1-trailing-1.lz, but this tests if the prefix
+	// to the trailing data contains lzip magic bytes.
+	// When this happens, the expected behavior is to silently ignore
+	// the magic byte prefix and consume it from the input file.
+	trailing_helper("files/good-1-v1-trailing-2.lz", hello_world_crc,
+			trailing_garbage_crc);
+
+	// Expect LZMA_BUF error if a file ends with the lzip magic bytes
+	// but does not contain any data after
+	decode_expect_error("files/bad-1-v1-trailing-magic.lz",
+			LZMA_BUF_ERROR);
+}
+
+
+static void
+test_concatentated(void)
+{
+	// First test a file with one v0 member and one v1 member
+	// The first member should contain "Hello\n" and
+	// the second member should contain "World!\n"
+
+	lzma_stream strm = LZMA_STREAM_INIT;
+	size_t file_size;
+	uint8_t *v0_v1 = tuktest_file_from_srcdir("files/good-2-v0-v1.lz",
+		&file_size);
+
+	assert_lzma_ret(lzma_lzip_decoder(&strm, MEMLIMIT,
+			LZMA_CONCATENATED), LZMA_OK);
+
+	uint8_t output_buffer[DECODE_CHUNK_SIZE];
+
+	strm.avail_in = file_size;
+	strm.next_in = v0_v1;
+	strm.avail_out = DECODE_CHUNK_SIZE;
+	strm.next_out = output_buffer;
+
+	assert_lzma_ret(lzma_code(&strm, LZMA_FINISH), LZMA_STREAM_END);
+
+	assert_uint_eq(strm.total_in, file_size);
+
+	uint32_t checksum = lzma_crc32(output_buffer, strm.total_out, 0);
+	assert_uint_eq(checksum, hello_world_crc);
+
+	// The second file contains one v1 member and one v2 member
+	uint8_t *v1_v0 = tuktest_file_from_srcdir("files/good-2-v1-v0.lz",
+		&file_size);
+
+	assert_lzma_ret(lzma_lzip_decoder(&strm, MEMLIMIT,
+			LZMA_CONCATENATED), LZMA_OK);
+
+	strm.avail_in = file_size;
+	strm.next_in = v1_v0;
+	strm.avail_out = DECODE_CHUNK_SIZE;
+	strm.next_out = output_buffer;
+
+	assert_lzma_ret(lzma_code(&strm, LZMA_FINISH), LZMA_STREAM_END);
+
+	assert_uint_eq(strm.total_in, file_size);
+	checksum = lzma_crc32(output_buffer, strm.total_out, 0);
+	assert_uint_eq(checksum, hello_world_crc);
+
+	// The third file contains 2 v1 members
+	uint8_t *v1_v1 = tuktest_file_from_srcdir("files/good-2-v1-v1.lz",
+		&file_size);
+
+	assert_lzma_ret(lzma_lzip_decoder(&strm, MEMLIMIT,
+			LZMA_CONCATENATED), LZMA_OK);
+
+	strm.avail_in = file_size;
+	strm.next_in = v1_v1;
+	strm.avail_out = DECODE_CHUNK_SIZE;
+	strm.next_out = output_buffer;
+
+	assert_lzma_ret(lzma_code(&strm, LZMA_FINISH), LZMA_STREAM_END);
+
+	assert_uint_eq(strm.total_in, file_size);
+	checksum = lzma_crc32(output_buffer, strm.total_out, 0);
+	assert_uint_eq(checksum, hello_world_crc);
+
+	lzma_end(&strm);
+}
+
+
+static void
+test_crc(void) {
+	// Test invalid checksum
+	lzma_stream strm = LZMA_STREAM_INIT;
+	size_t file_size;
+	uint8_t *data = tuktest_file_from_srcdir("files/bad-1-v1-crc32.lz",
+			&file_size);
+
+	assert_lzma_ret(lzma_lzip_decoder(&strm, MEMLIMIT,
+			LZMA_CONCATENATED), LZMA_OK);
+
+	uint8_t output_buffer[DECODE_CHUNK_SIZE];
+
+	strm.avail_in = file_size;
+	strm.next_in = data;
+	strm.avail_out = DECODE_CHUNK_SIZE;
+	strm.next_out = output_buffer;
+
+	assert_lzma_ret(lzma_code(&strm, LZMA_FINISH), LZMA_DATA_ERROR);
+
+	// Test ignoring the checksum value - should decode successfully
+	assert_lzma_ret(lzma_lzip_decoder(&strm, MEMLIMIT,
+			LZMA_CONCATENATED | LZMA_IGNORE_CHECK), LZMA_OK);
+
+	strm.avail_in = file_size;
+	strm.next_in = data;
+	strm.avail_out = DECODE_CHUNK_SIZE;
+	strm.next_out = output_buffer;
+
+	assert_lzma_ret(lzma_code(&strm, LZMA_FINISH), LZMA_STREAM_END);
+	assert_uint_eq(strm.total_in, file_size);
+
+	// Test tell check
+	assert_lzma_ret(lzma_lzip_decoder(&strm, MEMLIMIT,
+			LZMA_CONCATENATED | LZMA_TELL_ANY_CHECK), LZMA_OK);
+
+	strm.avail_in = file_size;
+	strm.next_in = data;
+	strm.avail_out = DECODE_CHUNK_SIZE;
+	strm.next_out = output_buffer;
+
+	assert_lzma_ret(lzma_code(&strm, LZMA_FINISH), LZMA_GET_CHECK);
+	assert_uint_eq(lzma_get_check(&strm), LZMA_CHECK_CRC32);
+	assert_lzma_ret(lzma_code(&strm, LZMA_FINISH), LZMA_DATA_ERROR);
+	lzma_end(&strm);
+}
+
+
+static void
+test_invalid_magic_bytes(void) {
+	uint8_t lzip_id_string[] = { 0x4C, 0x5A, 0x49, 0x50 };
+	lzma_stream strm = LZMA_STREAM_INIT;
+
+	for (uint32_t i = 0; i < ARRAY_SIZE(lzip_id_string); i++) {
+		// Corrupt magic bytes
+		lzip_id_string[i] ^= 1;
+		uint8_t output_buffer[DECODE_CHUNK_SIZE];
+
+		assert_lzma_ret(lzma_lzip_decoder(&strm, MEMLIMIT, 0),
+				LZMA_OK);
+
+		strm.next_in = lzip_id_string;
+		strm.avail_in = sizeof(lzip_id_string);
+		strm.next_out = output_buffer;
+		strm.avail_out = DECODE_CHUNK_SIZE;
+
+		assert_lzma_ret(lzma_code(&strm, LZMA_RUN),
+				LZMA_FORMAT_ERROR);
+
+		// Reset magic bytes
+		lzip_id_string[i] ^= 1;
+	}
+
+	lzma_end(&strm);
+}
+
+
+static void
+test_invalid_version(void)
+{
+	// The file contains a version number that is not 0 or 1,
+	// so it should cause an error
+	decode_expect_error("files/unsupported-1-v234.lz",
+			LZMA_OPTIONS_ERROR);
+}
+
+
+static void
+test_invalid_dictionary_size(void) {
+	// First file has too small dictionary size field
+	decode_expect_error("files/bad-1-v1-dict-1.lz", LZMA_DATA_ERROR);
+	
+	// Second file has too large dictionary size field
+	decode_expect_error("files/bad-1-v1-dict-2.lz", LZMA_DATA_ERROR);
+}
+
+
+static void
+test_invalid_uncomp_size(void) {
+	// Test invalid v0 lzip file uncomp size
+	decode_expect_error("files/bad-1-v0-uncomp-size.lz",
+			LZMA_DATA_ERROR);
+	
+	// Test invalid v1 lzip file uncomp size
+	decode_expect_error("files/bad-1-v1-uncomp-size.lz",
+			LZMA_DATA_ERROR);
+}
+
+
+static void
+test_invalid_member_size(void) {
+	decode_expect_error("files/bad-1-v1-member-size.lz",
+			LZMA_DATA_ERROR);
+}
+
+
+static void
+test_invalid_memlimit(void) {
+	// A very low memlimit should prevent decoding.
+	// Should be able to update the memlimit after failing
+	size_t file_size;
+	uint8_t *data = tuktest_file_from_srcdir("files/good-1-v1.lz",
+			&file_size);
+
+	uint8_t output_buffer[DECODE_CHUNK_SIZE];
+
+	lzma_stream strm = LZMA_STREAM_INIT;
+
+	assert_lzma_ret(lzma_lzip_decoder(&strm, 1, 0), LZMA_OK);
+
+	strm.next_in = data;
+	strm.avail_in = file_size;
+	strm.next_out = output_buffer;
+	strm.avail_out = DECODE_CHUNK_SIZE;
+
+	assert_lzma_ret(lzma_code(&strm, LZMA_FINISH), LZMA_MEMLIMIT_ERROR);
+
+	// Up the memlimit so decoding can continue.
+	// First only increase by a small amount and expect an error
+	assert_lzma_ret(lzma_memlimit_set(&strm, 100), LZMA_MEMLIMIT_ERROR);
+	assert_lzma_ret(lzma_memlimit_set(&strm, MEMLIMIT), LZMA_OK);
+
+	// Finish decoding
+	assert_lzma_ret(lzma_code(&strm, LZMA_FINISH), LZMA_STREAM_END);
+
+	assert_uint_eq(strm.total_in, file_size);
+	uint32_t checksum = lzma_crc32(output_buffer, strm.total_out, 0);
+	assert_uint_eq(checksum, hello_world_crc);
+
+	lzma_end(&strm);
+}
+#endif
+
+
+extern int
+main(int argc, char **argv)
+{
+	tuktest_start(argc, argv);
+
+#ifndef HAVE_LZIP_DECODER
+	tuktest_early_skip("lzip decoder disabled");
+#else
+	tuktest_run(test_options);
+	tuktest_run(test_v0_decode);
+	tuktest_run(test_v1_decode);
+	tuktest_run(test_v0_trailing);
+	tuktest_run(test_v1_trailing);
+	tuktest_run(test_concatentated);
+	tuktest_run(test_crc);
+	tuktest_run(test_invalid_magic_bytes);
+	tuktest_run(test_invalid_version);
+	tuktest_run(test_invalid_dictionary_size);
+	tuktest_run(test_invalid_uncomp_size);
+	tuktest_run(test_invalid_member_size);
+	tuktest_run(test_invalid_memlimit);
+	return tuktest_end();
+#endif
+
+}
diff --git a/tests/test_memlimit.c b/tests/test_memlimit.c
new file mode 100644
index 0000000..c45a44b
--- /dev/null
+++ b/tests/test_memlimit.c
@@ -0,0 +1,173 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       test_memlimit.c
+/// \brief      Tests memory usage limit in decoders
+//
+//  Author:     Lasse Collin
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include "tests.h"
+#include "mythread.h"
+
+
+#define MEMLIMIT_TOO_LOW 1234U
+#define MEMLIMIT_HIGH_ENOUGH (2U << 20)
+
+
+static uint8_t *in;
+static size_t in_size;
+
+#ifdef HAVE_DECODERS
+static uint8_t out[8192];
+#endif
+
+
+static void
+test_memlimit_stream_decoder(void)
+{
+#ifndef HAVE_DECODERS
+	assert_skip("Decoder support disabled");
+#else
+	lzma_stream strm = LZMA_STREAM_INIT;
+	assert_lzma_ret(lzma_stream_decoder(&strm, MEMLIMIT_TOO_LOW, 0),
+			LZMA_OK);
+
+	strm.next_in = in;
+	strm.avail_in = in_size;
+	strm.next_out = out;
+	strm.avail_out = sizeof(out);
+
+	assert_lzma_ret(lzma_code(&strm, LZMA_FINISH), LZMA_MEMLIMIT_ERROR);
+
+	assert_uint_eq(lzma_memlimit_get(&strm), MEMLIMIT_TOO_LOW);
+	assert_lzma_ret(lzma_memlimit_set(&strm, MEMLIMIT_TOO_LOW + 1),
+			LZMA_MEMLIMIT_ERROR);
+	assert_lzma_ret(lzma_memlimit_set(&strm, MEMLIMIT_HIGH_ENOUGH),
+			LZMA_OK);
+
+	// This fails before commit 660739f99ab211edec4071de98889fb32ed04e98
+	// (liblzma <= 5.2.6, liblzma <= 5.3.3alpha). It was fixed in 5.2.7.
+	assert_lzma_ret(lzma_code(&strm, LZMA_FINISH), LZMA_STREAM_END);
+
+	lzma_end(&strm);
+#endif
+}
+
+
+static void
+test_memlimit_stream_decoder_mt(void)
+{
+#ifndef MYTHREAD_ENABLED
+	assert_skip("Threading support disabled");
+#elif !defined(HAVE_DECODERS)
+	assert_skip("Decoder support disabled");
+#else
+	lzma_stream strm = LZMA_STREAM_INIT;
+	lzma_mt mt = {
+		.flags = 0,
+		.threads = 1,
+		.timeout = 0,
+		.memlimit_threading = 0,
+		.memlimit_stop = MEMLIMIT_TOO_LOW,
+	};
+
+	assert_lzma_ret(lzma_stream_decoder_mt(&strm, &mt), LZMA_OK);
+
+	strm.next_in = in;
+	strm.avail_in = in_size;
+	strm.next_out = out;
+	strm.avail_out = sizeof(out);
+
+	assert_lzma_ret(lzma_code(&strm, LZMA_FINISH), LZMA_MEMLIMIT_ERROR);
+
+	assert_uint_eq(lzma_memlimit_get(&strm), MEMLIMIT_TOO_LOW);
+	assert_lzma_ret(lzma_memlimit_set(&strm, MEMLIMIT_TOO_LOW + 1),
+			LZMA_MEMLIMIT_ERROR);
+	assert_lzma_ret(lzma_memlimit_set(&strm, MEMLIMIT_HIGH_ENOUGH),
+			LZMA_OK);
+
+	assert_lzma_ret(lzma_code(&strm, LZMA_FINISH), LZMA_STREAM_END);
+	lzma_end(&strm);
+#endif
+}
+
+
+static void
+test_memlimit_alone_decoder(void)
+{
+#ifndef HAVE_DECODERS
+	assert_skip("Decoder support disabled");
+#else
+	size_t alone_size;
+	uint8_t *alone_buf = tuktest_file_from_srcdir(
+			"files/good-unknown_size-with_eopm.lzma", &alone_size);
+
+	lzma_stream strm = LZMA_STREAM_INIT;
+	assert_lzma_ret(lzma_alone_decoder(&strm, MEMLIMIT_TOO_LOW), LZMA_OK);
+
+	strm.next_in = alone_buf;
+	strm.avail_in = alone_size;
+	strm.next_out = out;
+	strm.avail_out = sizeof(out);
+
+	assert_lzma_ret(lzma_code(&strm, LZMA_FINISH), LZMA_MEMLIMIT_ERROR);
+
+	assert_uint_eq(lzma_memlimit_get(&strm), MEMLIMIT_TOO_LOW);
+	assert_lzma_ret(lzma_memlimit_set(&strm, MEMLIMIT_TOO_LOW + 1),
+			LZMA_MEMLIMIT_ERROR);
+	assert_lzma_ret(lzma_memlimit_set(&strm, MEMLIMIT_HIGH_ENOUGH),
+			LZMA_OK);
+
+	assert_lzma_ret(lzma_code(&strm, LZMA_FINISH), LZMA_STREAM_END);
+	lzma_end(&strm);
+#endif
+}
+
+
+static void
+test_memlimit_auto_decoder(void)
+{
+#ifndef HAVE_DECODERS
+	assert_skip("Decoder support disabled");
+#else
+	lzma_stream strm = LZMA_STREAM_INIT;
+	assert_lzma_ret(lzma_auto_decoder(&strm, MEMLIMIT_TOO_LOW, 0),
+			LZMA_OK);
+
+	strm.next_in = in;
+	strm.avail_in = in_size;
+	strm.next_out = out;
+	strm.avail_out = sizeof(out);
+
+	assert_lzma_ret(lzma_code(&strm, LZMA_FINISH), LZMA_MEMLIMIT_ERROR);
+
+	assert_uint_eq(lzma_memlimit_get(&strm), MEMLIMIT_TOO_LOW);
+	assert_lzma_ret(lzma_memlimit_set(&strm, MEMLIMIT_TOO_LOW + 1),
+			LZMA_MEMLIMIT_ERROR);
+	assert_lzma_ret(lzma_memlimit_set(&strm, MEMLIMIT_HIGH_ENOUGH),
+			LZMA_OK);
+
+	assert_lzma_ret(lzma_code(&strm, LZMA_FINISH), LZMA_STREAM_END);
+	lzma_end(&strm);
+#endif
+}
+
+
+extern int
+main(int argc, char **argv)
+{
+	tuktest_start(argc, argv);
+
+	in = tuktest_file_from_srcdir("files/good-1-check-crc32.xz", &in_size);
+
+	tuktest_run(test_memlimit_stream_decoder);
+	tuktest_run(test_memlimit_stream_decoder_mt);
+	tuktest_run(test_memlimit_alone_decoder);
+	tuktest_run(test_memlimit_auto_decoder);
+
+	return tuktest_end();
+}
diff --git a/tests/test_scripts.sh b/tests/test_scripts.sh
new file mode 100755
index 0000000..ee82361
--- /dev/null
+++ b/tests/test_scripts.sh
@@ -0,0 +1,81 @@
+#!/bin/sh
+
+###############################################################################
+#
+# Author: Jonathan Nieder
+#
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
+###############################################################################
+
+# If scripts weren't built, this test is skipped.
+XZ=../src/xz/xz
+XZDIFF=../src/scripts/xzdiff
+XZGREP=../src/scripts/xzgrep
+
+for i in XZ XZDIFF XZGREP; do
+	eval test -x "\$$i" && continue
+	exit 77
+done
+
+# If decompression support is missing, this test is skipped.
+# Installing the scripts in this case is a bit silly but they
+# could still be used with other decompression tools so configure
+# doesn't automatically disable scripts if decoders are disabled.
+if grep 'define HAVE_DECODERS' ../config.h > /dev/null ; then
+	:
+else
+	echo "Decompression support is disabled, skipping this test."
+	exit 77
+fi
+
+PATH=`pwd`/../src/xz:$PATH
+export PATH
+
+test -z "$srcdir" && srcdir=.
+preimage=$srcdir/files/good-1-check-crc32.xz
+samepostimage=$srcdir/files/good-1-check-crc64.xz
+otherpostimage=$srcdir/files/good-1-lzma2-1.xz
+
+"$XZDIFF" "$preimage" "$samepostimage" >/dev/null
+status=$?
+if test "$status" != 0 ; then
+	echo "xzdiff with no changes exited with status $status != 0"
+	exit 1
+fi
+
+"$XZDIFF" "$preimage" "$otherpostimage" >/dev/null
+status=$?
+if test "$status" != 1 ; then
+	echo "xzdiff with changes exited with status $status != 1"
+	exit 1
+fi
+
+"$XZDIFF" "$preimage" "$srcdir/files/missing.xz" >/dev/null 2>&1
+status=$?
+if test "$status" != 2 ; then
+	echo "xzdiff with missing operand exited with status $status != 2"
+	exit 1
+fi
+
+# The exit status must be 0 when a match was found at least from one file,
+# and 1 when no match was found in any file.
+cp "$srcdir/files/good-1-lzma2-1.xz" xzgrep_test_1.xz
+cp "$srcdir/files/good-2-lzma2.xz" xzgrep_test_2.xz
+for pattern in el Hello NOMATCH; do
+	for opts in "" "-l" "-h" "-H"; do
+		echo "=> xzgrep $opts $pattern <="
+		"$XZGREP" $opts $pattern xzgrep_test_1.xz xzgrep_test_2.xz
+		echo retval $?
+	done
+done > xzgrep_test_output 2>&1
+
+if cmp -s "$srcdir/xzgrep_expected_output" xzgrep_test_output ; then
+	:
+else
+	echo "unexpected output from xzgrep"
+	exit 1
+fi
+
+exit 0
diff --git a/tests/test_stream_flags.c b/tests/test_stream_flags.c
new file mode 100644
index 0000000..b8ec546
--- /dev/null
+++ b/tests/test_stream_flags.c
@@ -0,0 +1,479 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       test_stream_flags.c
+/// \brief      Tests Stream Header and Stream Footer coders
+//
+//  Authors:    Jia Tan
+//              Lasse Collin
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include "tests.h"
+
+
+// Size of the Stream Flags field
+// (taken from src/liblzma/common/stream_flags_common.h)
+#define XZ_STREAM_FLAGS_SIZE 2
+
+#ifdef HAVE_ENCODERS
+// Header and footer magic bytes for .xz file format
+// (taken from src/liblzma/common/stream_flags_common.c)
+static const uint8_t xz_header_magic[6]
+		= { 0xFD, 0x37, 0x7A, 0x58, 0x5A, 0x00 };
+static const uint8_t xz_footer_magic[2] = { 0x59, 0x5A };
+#endif
+
+
+#ifdef HAVE_ENCODERS
+static void
+stream_header_encode_helper(lzma_check check)
+{
+	lzma_stream_flags flags = {
+		.version = 0,
+		.check = check,
+	};
+
+	uint8_t header[LZMA_STREAM_HEADER_SIZE];
+
+	// Encode Stream Header
+	assert_lzma_ret(lzma_stream_header_encode(&flags, header), LZMA_OK);
+
+	// Stream Header must start with Header Magic Bytes
+	const uint32_t magic_size = sizeof(xz_header_magic);
+	assert_array_eq(header, xz_header_magic, magic_size);
+
+	// Next must come Stream Flags
+	const uint8_t *encoded_stream_flags = header + magic_size;
+
+	// First byte is always null-byte.
+	// Second byte must have the Check ID in the lowest four bits
+	// and the highest four bits zero.
+	const uint8_t expected_stream_flags[] = { 0, check };
+	assert_array_eq(encoded_stream_flags, expected_stream_flags,
+			XZ_STREAM_FLAGS_SIZE);
+
+	// Last part is the CRC32 of the Stream Flags
+	const uint8_t *crc_ptr = encoded_stream_flags + XZ_STREAM_FLAGS_SIZE;
+	const uint32_t expected_crc = lzma_crc32(expected_stream_flags,
+			XZ_STREAM_FLAGS_SIZE, 0);
+	assert_uint_eq(read32le(crc_ptr), expected_crc);
+}
+#endif
+
+
+static void
+test_lzma_stream_header_encode(void)
+{
+#ifndef HAVE_ENCODERS
+	assert_skip("Encoder support disabled");
+#else
+	for (int i = 0; i < LZMA_CHECK_ID_MAX; i++)
+		stream_header_encode_helper(i);
+
+	lzma_stream_flags flags = {
+		.version = 0,
+		.check = LZMA_CHECK_CRC32
+	};
+
+	uint8_t header[LZMA_STREAM_HEADER_SIZE];
+
+	// Should fail if version > 0
+	flags.version = 1;
+	assert_lzma_ret(lzma_stream_header_encode(&flags, header),
+			LZMA_OPTIONS_ERROR);
+	flags.version = 0;
+
+	// Should fail if Check ID is invalid
+	flags.check = LZMA_CHECK_ID_MAX + 1;
+	assert_lzma_ret(lzma_stream_header_encode(&flags, header),
+			LZMA_PROG_ERROR);
+	flags.check = LZMA_CHECK_CRC32;
+
+	// Should pass even if Backward Size is invalid
+	// because Stream Header doesn't have that field.
+	flags.backward_size = LZMA_VLI_MAX + 1;
+	assert_lzma_ret(lzma_stream_header_encode(&flags, header), LZMA_OK);
+#endif
+}
+
+
+#if defined(HAVE_ENCODERS)
+static void
+stream_footer_encode_helper(lzma_check check)
+{
+	lzma_stream_flags flags = {
+		.version = 0,
+		.check = check,
+		.backward_size = LZMA_BACKWARD_SIZE_MIN,
+	};
+
+	uint8_t footer[LZMA_STREAM_HEADER_SIZE];
+
+	// Encode Stream Footer
+	assert_lzma_ret(lzma_stream_footer_encode(&flags, footer), LZMA_OK);
+
+	// Stream Footer must start with CRC32
+	const uint32_t crc = read32le(footer);
+	const uint32_t expected_crc = lzma_crc32(footer + sizeof(uint32_t),
+			LZMA_STREAM_HEADER_SIZE - (sizeof(uint32_t) +
+			sizeof(xz_footer_magic)), 0);
+	assert_uint_eq(crc, expected_crc);
+
+	// Next the Backward Size
+	const uint32_t backwards_size = read32le(footer + sizeof(uint32_t));
+	const uint32_t expected_backwards_size = flags.backward_size / 4 - 1;
+	assert_uint_eq(backwards_size, expected_backwards_size);
+
+	// Next the Stream Flags
+	const uint8_t *stream_flags = footer + sizeof(uint32_t) * 2;
+
+	// First byte must be null
+	assert_uint_eq(stream_flags[0], 0);
+
+	// Second byte must have the Check ID in the lowest four bits
+	// and the highest four bits zero.
+	assert_uint_eq(stream_flags[1], check);
+
+	// And ends with Footer Magic Bytes
+	const uint8_t *expected_footer_magic = stream_flags +
+			XZ_STREAM_FLAGS_SIZE;
+	assert_array_eq(expected_footer_magic, xz_footer_magic,
+			sizeof(xz_footer_magic));
+}
+#endif
+
+
+static void
+test_lzma_stream_footer_encode(void)
+{
+#ifndef HAVE_ENCODERS
+	assert_skip("Encoder support disabled");
+#else
+	for (int i = 0; i < LZMA_CHECK_ID_MAX; i++)
+		stream_footer_encode_helper(i);
+
+	lzma_stream_flags flags = {
+		.version = 0,
+		.backward_size = LZMA_BACKWARD_SIZE_MIN,
+		.check = LZMA_CHECK_CRC32
+	};
+
+	uint8_t footer[LZMA_STREAM_HEADER_SIZE];
+
+	// Should fail if version > 0
+	flags.version = 1;
+	assert_lzma_ret(lzma_stream_footer_encode(&flags, footer),
+			LZMA_OPTIONS_ERROR);
+	flags.version = 0;
+
+	// Should fail if Check ID is invalid
+	flags.check = LZMA_CHECK_ID_MAX + 1;
+	assert_lzma_ret(lzma_stream_footer_encode(&flags, footer),
+			LZMA_PROG_ERROR);
+
+	// Should fail if Backward Size is invalid
+	flags.backward_size -= 1;
+	assert_lzma_ret(lzma_stream_footer_encode(&flags, footer),
+			LZMA_PROG_ERROR);
+	flags.backward_size += 2;
+	assert_lzma_ret(lzma_stream_footer_encode(&flags, footer),
+			LZMA_PROG_ERROR);
+	flags.backward_size = LZMA_BACKWARD_SIZE_MAX + 4;
+	assert_lzma_ret(lzma_stream_footer_encode(&flags, footer),
+			LZMA_PROG_ERROR);
+#endif
+}
+
+
+#if defined(HAVE_ENCODERS) && defined(HAVE_DECODERS)
+static void
+stream_header_decode_helper(lzma_check check)
+{
+	lzma_stream_flags flags = {
+		.version = 0,
+		.check = check
+	};
+
+	uint8_t header[LZMA_STREAM_HEADER_SIZE];
+
+	assert_lzma_ret(lzma_stream_header_encode(&flags, header), LZMA_OK);
+
+	lzma_stream_flags dest_flags;
+	assert_lzma_ret(lzma_stream_header_decode(&dest_flags, header),
+			LZMA_OK);
+
+	// Version should be 0
+	assert_uint_eq(dest_flags.version, 0);
+
+	// Backward Size should be LZMA_VLI_UNKNOWN
+	assert_uint_eq(dest_flags.backward_size, LZMA_VLI_UNKNOWN);
+
+	// Check ID must equal the argument given to this function.
+	assert_uint_eq(dest_flags.check, check);
+}
+#endif
+
+
+static void
+test_lzma_stream_header_decode(void)
+{
+#if !defined(HAVE_ENCODERS) || !defined(HAVE_DECODERS)
+	assert_skip("Encoder or decoder support disabled");
+#else
+	for (int i = 0; i < LZMA_CHECK_ID_MAX; i++)
+		stream_header_decode_helper(i);
+
+	lzma_stream_flags flags = {
+		.version = 0,
+		.check = LZMA_CHECK_CRC32
+	};
+
+	uint8_t header[LZMA_STREAM_HEADER_SIZE];
+	lzma_stream_flags dest;
+
+	// First encode known flags to header buffer
+	assert_lzma_ret(lzma_stream_header_encode(&flags, header), LZMA_OK);
+
+	// Should fail if magic bytes do not match
+	header[0] ^= 1;
+	assert_lzma_ret(lzma_stream_header_decode(&dest, header),
+			LZMA_FORMAT_ERROR);
+	header[0] ^= 1;
+
+	// Should fail if a reserved bit is set
+	uint8_t *stream_flags = header + sizeof(xz_header_magic);
+	stream_flags[0] = 1;
+
+	// Need to adjust CRC32 after making a change since the CRC32
+	// is verified before decoding the Stream Flags field.
+	uint8_t *crc32_ptr = header + sizeof(xz_header_magic)
+			+ XZ_STREAM_FLAGS_SIZE;
+	const uint32_t crc_orig = read32le(crc32_ptr);
+	uint32_t new_crc32 = lzma_crc32(
+			stream_flags, XZ_STREAM_FLAGS_SIZE, 0);
+	write32le(crc32_ptr, new_crc32);
+	assert_lzma_ret(lzma_stream_header_decode(&dest, header),
+			LZMA_OPTIONS_ERROR);
+	stream_flags[0] = 0;
+	write32le(crc32_ptr, crc_orig);
+
+	// Should fail if upper bits of check ID are set
+	stream_flags[1] |= 0xF0;
+	new_crc32 = lzma_crc32(stream_flags, XZ_STREAM_FLAGS_SIZE, 0);
+	write32le(crc32_ptr, new_crc32);
+	assert_lzma_ret(lzma_stream_header_decode(&dest, header),
+			LZMA_OPTIONS_ERROR);
+	stream_flags[1] = flags.check;
+	write32le(crc32_ptr, crc_orig);
+
+	// Should fail if CRC32 does not match.
+	// First, alter a byte in the Stream Flags.
+	stream_flags[0] = 1;
+	assert_lzma_ret(lzma_stream_header_decode(&dest, header),
+			LZMA_DATA_ERROR);
+	stream_flags[0] = 0;
+
+	// Next, change the CRC32.
+	*crc32_ptr ^= 1;
+	assert_lzma_ret(lzma_stream_header_decode(&dest, header),
+			LZMA_DATA_ERROR);
+#endif
+}
+
+
+#if defined(HAVE_ENCODERS) && defined(HAVE_DECODERS)
+static void
+stream_footer_decode_helper(lzma_check check)
+{
+	lzma_stream_flags flags = {
+		.version = 0,
+		.backward_size = LZMA_BACKWARD_SIZE_MIN,
+		.check = check,
+	};
+
+	uint8_t footer[LZMA_STREAM_HEADER_SIZE];
+	assert_lzma_ret(lzma_stream_footer_encode(&flags, footer), LZMA_OK);
+
+	lzma_stream_flags dest_flags;
+	assert_lzma_ret(lzma_stream_footer_decode(&dest_flags, footer),
+			LZMA_OK);
+
+	// Version should be 0.
+	assert_uint_eq(dest_flags.version, 0);
+
+	// Backward Size should equal the value from the flags.
+	assert_uint_eq(dest_flags.backward_size, flags.backward_size);
+
+	// Check ID must equal argument given to this function.
+	assert_uint_eq(dest_flags.check, check);
+}
+#endif
+
+
+static void
+test_lzma_stream_footer_decode(void)
+{
+#if !defined(HAVE_ENCODERS) || !defined(HAVE_DECODERS)
+	assert_skip("Encoder or decoder support disabled");
+#else
+	for (int i = 0; i < LZMA_CHECK_ID_MAX; i++)
+		stream_footer_decode_helper(i);
+
+	lzma_stream_flags flags = {
+		.version = 0,
+		.check = LZMA_CHECK_CRC32,
+		.backward_size = LZMA_BACKWARD_SIZE_MIN
+	};
+
+	uint8_t footer[LZMA_STREAM_HEADER_SIZE];
+	lzma_stream_flags dest;
+
+	// First encode known flags to the footer buffer
+	assert_lzma_ret(lzma_stream_footer_encode(&flags, footer), LZMA_OK);
+
+	// Should fail if magic bytes do not match
+	footer[LZMA_STREAM_HEADER_SIZE - 1] ^= 1;
+	assert_lzma_ret(lzma_stream_footer_decode(&dest, footer),
+			LZMA_FORMAT_ERROR);
+	footer[LZMA_STREAM_HEADER_SIZE - 1] ^= 1;
+
+	// Should fail if a reserved bit is set.
+	// In the Stream Footer, the Stream Flags follow the CRC32 (4 bytes)
+	// and the Backward Size (4 bytes)
+	uint8_t *stream_flags = footer + sizeof(uint32_t) * 2;
+	stream_flags[0] = 1;
+
+	// Need to adjust the CRC32 so it will not fail that check instead
+	uint8_t *crc32_ptr = footer;
+	const uint32_t crc_orig = read32le(crc32_ptr);
+	uint8_t *backward_size = footer + sizeof(uint32_t);
+	uint32_t new_crc32 = lzma_crc32(backward_size, sizeof(uint32_t) +
+			XZ_STREAM_FLAGS_SIZE, 0);
+	write32le(crc32_ptr, new_crc32);
+	assert_lzma_ret(lzma_stream_footer_decode(&dest, footer),
+			LZMA_OPTIONS_ERROR);
+	stream_flags[0] = 0;
+	write32le(crc32_ptr, crc_orig);
+
+	// Should fail if upper bits of check ID are set
+	stream_flags[1] |= 0xF0;
+	new_crc32 = lzma_crc32(backward_size, sizeof(uint32_t) +
+			XZ_STREAM_FLAGS_SIZE, 0);
+	write32le(crc32_ptr, new_crc32);
+	assert_lzma_ret(lzma_stream_footer_decode(&dest, footer),
+			LZMA_OPTIONS_ERROR);
+	stream_flags[1] = flags.check;
+	write32le(crc32_ptr, crc_orig);
+
+	// Should fail if CRC32 does not match.
+	// First, alter a byte in the Stream Flags.
+	stream_flags[0] = 1;
+	assert_lzma_ret(lzma_stream_footer_decode(&dest, footer),
+			LZMA_DATA_ERROR);
+	stream_flags[0] = 0;
+
+	// Next, change the CRC32
+	*crc32_ptr ^= 1;
+	assert_lzma_ret(lzma_stream_footer_decode(&dest, footer),
+			LZMA_DATA_ERROR);
+#endif
+}
+
+
+static void
+test_lzma_stream_flags_compare(void)
+{
+	lzma_stream_flags first = {
+		.version = 0,
+		.backward_size = LZMA_BACKWARD_SIZE_MIN,
+		.check = LZMA_CHECK_CRC32,
+	};
+
+	lzma_stream_flags second = first;
+
+	// First test should pass
+	assert_lzma_ret(lzma_stream_flags_compare(&first, &second), LZMA_OK);
+
+	// Altering either version should cause an error
+	first.version = 1;
+	assert_lzma_ret(lzma_stream_flags_compare(&first, &second),
+			LZMA_OPTIONS_ERROR);
+	second.version = 1;
+	assert_lzma_ret(lzma_stream_flags_compare(&first, &second),
+			LZMA_OPTIONS_ERROR);
+	first.version = 0;
+	assert_lzma_ret(lzma_stream_flags_compare(&first, &second),
+			LZMA_OPTIONS_ERROR);
+	second.version = 0;
+
+	// Check types must be under the maximum
+	first.check = LZMA_CHECK_ID_MAX + 1;
+	assert_lzma_ret(lzma_stream_flags_compare(&first, &second),
+			LZMA_PROG_ERROR);
+	second.check = LZMA_CHECK_ID_MAX + 1;
+	assert_lzma_ret(lzma_stream_flags_compare(&first, &second),
+			LZMA_PROG_ERROR);
+	first.check = LZMA_CHECK_CRC32;
+	assert_lzma_ret(lzma_stream_flags_compare(&first, &second),
+			LZMA_PROG_ERROR);
+	second.check = LZMA_CHECK_CRC32;
+
+	// Check types must be equal
+	for (uint32_t i = 0; i < LZMA_CHECK_ID_MAX; i++) {
+		first.check = i;
+		if (i == second.check)
+			assert_lzma_ret(lzma_stream_flags_compare(&first,
+					&second), LZMA_OK);
+		else
+			assert_lzma_ret(lzma_stream_flags_compare(&first,
+					&second), LZMA_DATA_ERROR);
+	}
+	first.check = LZMA_CHECK_CRC32;
+
+	// Backward Size comparison is skipped if either are LZMA_VLI_UNKNOWN
+	first.backward_size = LZMA_VLI_UNKNOWN;
+	assert_lzma_ret(lzma_stream_flags_compare(&first, &second), LZMA_OK);
+	second.backward_size = LZMA_VLI_MAX + 1;
+	assert_lzma_ret(lzma_stream_flags_compare(&first, &second), LZMA_OK);
+	second.backward_size = LZMA_BACKWARD_SIZE_MIN;
+
+	// Backward Sizes need to be valid
+	first.backward_size = LZMA_VLI_MAX + 4;
+	assert_lzma_ret(lzma_stream_flags_compare(&first, &second),
+			LZMA_PROG_ERROR);
+	second.backward_size = LZMA_VLI_MAX + 4;
+	assert_lzma_ret(lzma_stream_flags_compare(&first, &second),
+			LZMA_PROG_ERROR);
+	first.backward_size = LZMA_BACKWARD_SIZE_MIN;
+	assert_lzma_ret(lzma_stream_flags_compare(&first, &second),
+			LZMA_PROG_ERROR);
+	second.backward_size = LZMA_BACKWARD_SIZE_MIN;
+
+	// Backward Sizes must be equal
+	second.backward_size = first.backward_size + 4;
+	assert_lzma_ret(lzma_stream_flags_compare(&first, &second),
+			LZMA_DATA_ERROR);
+
+	// Should fail if Backward Sizes are > LZMA_BACKWARD_SIZE_MAX
+	// even though they are equal
+	first.backward_size = LZMA_BACKWARD_SIZE_MAX + 1;
+	second.backward_size = LZMA_BACKWARD_SIZE_MAX + 1;
+	assert_lzma_ret(lzma_stream_flags_compare(&first, &second),
+			LZMA_PROG_ERROR);
+}
+
+
+extern int
+main(int argc, char **argv)
+{
+	tuktest_start(argc, argv);
+	tuktest_run(test_lzma_stream_header_encode);
+	tuktest_run(test_lzma_stream_footer_encode);
+	tuktest_run(test_lzma_stream_header_decode);
+	tuktest_run(test_lzma_stream_footer_decode);
+	tuktest_run(test_lzma_stream_flags_compare);
+	return tuktest_end();
+}
diff --git a/tests/test_vli.c b/tests/test_vli.c
new file mode 100644
index 0000000..793dcf2
--- /dev/null
+++ b/tests/test_vli.c
@@ -0,0 +1,322 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       test_vli.c
+/// \brief      Tests liblzma vli functions
+//
+//  Author:     Jia Tan
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include "tests.h"
+
+
+// Pre-encoded VLI values for testing
+// VLI can have between 1 and 9 bytes when encoded
+// They are encoded little endian where all but the last
+// byte must have the leading 1 bit set
+static const uint8_t one_byte[1] = {0x25};
+static const lzma_vli one_byte_value = 37;
+
+static const uint8_t two_bytes[2] = {0x80, 0x56};
+static const lzma_vli two_byte_value = 11008;
+
+static const uint8_t three_bytes[3] = {0x99, 0x92, 0x20};
+static const lzma_vli three_byte_value = 526617;
+
+static const uint8_t four_bytes[4] = {0x97, 0x83, 0x94, 0x47};
+static const lzma_vli four_byte_value = 149225879;
+
+static const uint8_t five_bytes[5] = {0xA6, 0x92, 0x88, 0x89, 0x32};
+static const lzma_vli five_byte_value = 13440780582;
+
+static const uint8_t six_bytes[6] = {0xA9, 0x84, 0x99, 0x82, 0x94, 0x12};
+static const lzma_vli six_byte_value = 623848604201;
+
+static const uint8_t seven_bytes[7] = {0x90, 0x80, 0x90, 0x80, 0x90, 0x80,
+				0x79};
+static const lzma_vli seven_byte_value = 532167923073040;
+
+static const uint8_t eight_bytes[8] = {0x91, 0x87, 0xF2, 0xB2, 0xC2, 0xD2,
+				0x93, 0x63};
+static const lzma_vli eight_byte_value = 55818443594433425;
+
+static const uint8_t nine_bytes[9] = {0x81, 0x91, 0xA1, 0xB1, 0xC1, 0xD1,
+				0xE1, 0xF1, 0x1};
+static const lzma_vli nine_byte_value = 136100349976529025;
+
+
+static void
+test_lzma_vli_size(void)
+{
+	// First test invalid VLI values (should return 0)
+	// VLI UNKNOWN is an invalid VLI
+	assert_uint_eq(lzma_vli_size(LZMA_VLI_UNKNOWN), 0);
+	// Loop over a few VLI values just over the maximum
+	for (uint64_t i = LZMA_VLI_MAX + 1; i < LZMA_VLI_MAX + 10; i++)
+		assert_uint_eq(lzma_vli_size(i), 0);
+
+	// Number should increment every seven set bits
+	lzma_vli vli = 1;
+	for (uint32_t i = 1; i < LZMA_VLI_BYTES_MAX; i++, vli <<= 7) {
+		// Test the base value and a few others around it
+		assert_uint_eq(lzma_vli_size(vli), i);
+		assert_uint_eq(lzma_vli_size(vli * 2), i);
+		assert_uint_eq(lzma_vli_size(vli + 10), i);
+		assert_uint_eq(lzma_vli_size(vli * 3 + 39), i);
+	}
+}
+
+
+#ifdef HAVE_ENCODERS
+// Helper function for test_lzma_vli_encode
+// Encodes an input VLI and compares against a pre-computed value
+static void
+encode_single_call_mode(lzma_vli input, const uint8_t *expected,
+		uint32_t expected_len)
+{
+	uint8_t out[LZMA_VLI_BYTES_MAX];
+	size_t out_pos = 0;
+	assert_lzma_ret(lzma_vli_encode(input, NULL, out, &out_pos,
+			expected_len), LZMA_OK);
+	assert_uint_eq(out_pos, expected_len);
+	assert_array_eq(out, expected, expected_len);
+}
+
+
+// Helper function for test_lzma_vli_encode
+// Encodes an input VLI one byte at a time with the multi call
+// method. Then compares agaist a pre-computed value
+static void
+encode_multi_call_mode(lzma_vli input, const uint8_t *expected,
+		uint32_t expected_len)
+{
+	uint8_t out[LZMA_VLI_BYTES_MAX];
+	size_t out_pos = 0;
+	size_t vli_pos = 0;
+
+	for (uint32_t i = 1; i < expected_len; i++) {
+		assert_lzma_ret(lzma_vli_encode(input, &vli_pos, out,
+				&out_pos, i), LZMA_OK);
+		assert_uint_eq(out_pos, i);
+		assert_uint_eq(vli_pos, i);
+	}
+	assert_lzma_ret(lzma_vli_encode(input, &vli_pos, out, &out_pos,
+			expected_len), LZMA_STREAM_END);
+	assert_uint_eq(out_pos, expected_len);
+	assert_uint_eq(vli_pos, expected_len);
+	assert_array_eq(out, expected, expected_len);
+}
+#endif
+
+
+static void
+test_lzma_vli_encode(void)
+{
+#ifndef HAVE_ENCODERS
+	assert_skip("Encoder support disabled");
+#else
+	size_t vli_pos = 0;
+	uint8_t out[LZMA_VLI_BYTES_MAX];
+	uint8_t zeros[LZMA_VLI_BYTES_MAX];
+	memzero(out, LZMA_VLI_BYTES_MAX);
+	memzero(zeros, LZMA_VLI_BYTES_MAX);
+	size_t out_pos = 0;
+
+	// First test invalid input parameters
+	// VLI invalid
+	assert_lzma_ret(lzma_vli_encode(LZMA_VLI_UNKNOWN, &vli_pos, out,
+			&out_pos, sizeof(out)), LZMA_PROG_ERROR);
+	// Failure should not change params
+	assert_uint_eq(vli_pos, 0);
+	assert_uint_eq(out_pos, 0);
+	assert_array_eq(out, zeros, LZMA_VLI_BYTES_MAX);
+
+	assert_lzma_ret(lzma_vli_encode(LZMA_VLI_MAX + 1, &vli_pos, out,
+		&out_pos, sizeof(out)), LZMA_PROG_ERROR);
+	assert_uint_eq(vli_pos, 0);
+	assert_uint_eq(out_pos, 0);
+	assert_array_eq(out, zeros, LZMA_VLI_BYTES_MAX);
+
+	// 0 output size
+	assert_lzma_ret(lzma_vli_encode(one_byte_value, &vli_pos, out,
+			&out_pos, 0), LZMA_BUF_ERROR);
+	assert_uint_eq(vli_pos, 0);
+	assert_uint_eq(out_pos, 0);
+	assert_array_eq(out, zeros, LZMA_VLI_BYTES_MAX);
+
+	// Size of VLI does not fit in buffer
+	size_t phony_out_pos = 3;
+	assert_lzma_ret(lzma_vli_encode(one_byte_value, NULL, out,
+			&phony_out_pos, 2), LZMA_PROG_ERROR);
+
+	assert_lzma_ret(lzma_vli_encode(LZMA_VLI_MAX / 2, NULL, out,
+			&out_pos, 2), LZMA_PROG_ERROR);
+
+	// Test single-call mode (using vli_pos as NULL)
+	encode_single_call_mode(one_byte_value, one_byte,
+			sizeof(one_byte));
+	encode_single_call_mode(two_byte_value, two_bytes,
+			sizeof(two_bytes));
+	encode_single_call_mode(three_byte_value, three_bytes,
+			sizeof(three_bytes));
+	encode_single_call_mode(four_byte_value, four_bytes,
+			sizeof(four_bytes));
+	encode_single_call_mode(five_byte_value, five_bytes,
+			sizeof(five_bytes));
+	encode_single_call_mode(six_byte_value, six_bytes,
+			sizeof(six_bytes));
+	encode_single_call_mode(seven_byte_value, seven_bytes,
+			sizeof(seven_bytes));
+	encode_single_call_mode(eight_byte_value, eight_bytes,
+			sizeof(eight_bytes));
+	encode_single_call_mode(nine_byte_value, nine_bytes,
+			sizeof(nine_bytes));
+
+	// Test multi-call mode
+	encode_multi_call_mode(one_byte_value, one_byte,
+			sizeof(one_byte));
+	encode_multi_call_mode(two_byte_value, two_bytes,
+			sizeof(two_bytes));
+	encode_multi_call_mode(three_byte_value, three_bytes,
+			sizeof(three_bytes));
+	encode_multi_call_mode(four_byte_value, four_bytes,
+			sizeof(four_bytes));
+	encode_multi_call_mode(five_byte_value, five_bytes,
+			sizeof(five_bytes));
+	encode_multi_call_mode(six_byte_value, six_bytes,
+			sizeof(six_bytes));
+	encode_multi_call_mode(seven_byte_value, seven_bytes,
+			sizeof(seven_bytes));
+	encode_multi_call_mode(eight_byte_value, eight_bytes,
+			sizeof(eight_bytes));
+	encode_multi_call_mode(nine_byte_value, nine_bytes,
+			sizeof(nine_bytes));
+#endif
+}
+
+
+#ifdef HAVE_DECODERS
+static void
+decode_single_call_mode(const uint8_t *input, uint32_t input_len,
+		lzma_vli expected)
+{
+	lzma_vli out = 0;
+	size_t in_pos = 0;
+
+	assert_lzma_ret(lzma_vli_decode(&out, NULL, input, &in_pos,
+			input_len), LZMA_OK);
+	assert_uint_eq(in_pos, input_len);
+	assert_uint_eq(out, expected);
+}
+
+
+static void
+decode_multi_call_mode(const uint8_t *input, uint32_t input_len,
+		lzma_vli expected)
+{
+	lzma_vli out = 0;
+	size_t in_pos = 0;
+	size_t vli_pos = 0;
+
+	for (uint32_t i = 1; i < input_len; i++) {
+		assert_lzma_ret(lzma_vli_decode(&out, &vli_pos, input,
+				&in_pos, i), LZMA_OK);
+		assert_uint_eq(in_pos, i);
+		assert_uint_eq(vli_pos, i);
+	}
+
+	assert_lzma_ret(lzma_vli_decode(&out, &vli_pos, input, &in_pos,
+			input_len), LZMA_STREAM_END);
+	assert_uint_eq(in_pos, input_len);
+	assert_uint_eq(vli_pos, input_len);
+	assert_uint_eq(out, expected);
+}
+#endif
+
+
+static void
+test_lzma_vli_decode(void)
+{
+#ifndef HAVE_DECODERS
+	assert_skip("Decoder support disabled");
+#else
+	lzma_vli out = 0;
+	size_t in_pos = 0;
+
+	// First test invalid input params
+	// 0 in_size
+	assert_lzma_ret(lzma_vli_decode(&out, NULL, one_byte, &in_pos, 0),
+			LZMA_DATA_ERROR);
+	assert_uint_eq(out, 0);
+	assert_uint_eq(in_pos, 0);
+
+	// VLI encoded is invalid (last digit has leading 1 set)
+	uint8_t invalid_vli[3] = {0x80, 0x80, 0x80};
+	assert_lzma_ret(lzma_vli_decode(&out, NULL, invalid_vli, &in_pos,
+			sizeof(invalid_vli)), LZMA_DATA_ERROR);
+
+	// Bad vli_pos
+	size_t vli_pos = LZMA_VLI_BYTES_MAX;
+	assert_lzma_ret(lzma_vli_decode(&out, &vli_pos, invalid_vli, &in_pos,
+			sizeof(invalid_vli)), LZMA_PROG_ERROR);
+
+	// Bad in_pos
+	in_pos = sizeof(invalid_vli);
+	assert_lzma_ret(lzma_vli_decode(&out, &in_pos, invalid_vli, &in_pos,
+			sizeof(invalid_vli)), LZMA_BUF_ERROR);
+
+	// Test single call mode
+	decode_single_call_mode(one_byte, sizeof(one_byte),
+			one_byte_value);
+	decode_single_call_mode(two_bytes, sizeof(two_bytes),
+			two_byte_value);
+	decode_single_call_mode(three_bytes, sizeof(three_bytes),
+			three_byte_value);
+	decode_single_call_mode(four_bytes, sizeof(four_bytes),
+			four_byte_value);
+	decode_single_call_mode(five_bytes, sizeof(five_bytes),
+			five_byte_value);
+	decode_single_call_mode(six_bytes, sizeof(six_bytes),
+			six_byte_value);
+	decode_single_call_mode(seven_bytes, sizeof(seven_bytes),
+			seven_byte_value);
+	decode_single_call_mode(eight_bytes, sizeof(eight_bytes),
+			eight_byte_value);
+	decode_single_call_mode(nine_bytes, sizeof(nine_bytes),
+			nine_byte_value);
+
+	// Test multi call mode
+	decode_multi_call_mode(one_byte, sizeof(one_byte),
+			one_byte_value);
+	decode_multi_call_mode(two_bytes, sizeof(two_bytes),
+			two_byte_value);
+	decode_multi_call_mode(three_bytes, sizeof(three_bytes),
+			three_byte_value);
+	decode_multi_call_mode(four_bytes, sizeof(four_bytes),
+			four_byte_value);
+	decode_multi_call_mode(five_bytes, sizeof(five_bytes),
+			five_byte_value);
+	decode_multi_call_mode(six_bytes, sizeof(six_bytes),
+			six_byte_value);
+	decode_multi_call_mode(seven_bytes, sizeof(seven_bytes),
+			seven_byte_value);
+	decode_multi_call_mode(eight_bytes, sizeof(eight_bytes),
+			eight_byte_value);
+	decode_multi_call_mode(nine_bytes, sizeof(nine_bytes),
+			nine_byte_value);
+#endif
+}
+
+
+extern int
+main(int argc, char **argv)
+{
+	tuktest_start(argc, argv);
+	tuktest_run(test_lzma_vli_size);
+	tuktest_run(test_lzma_vli_encode);
+	tuktest_run(test_lzma_vli_decode);
+	return tuktest_end();
+}
diff --git a/tests/tests.h b/tests/tests.h
new file mode 100644
index 0000000..4d6169b
--- /dev/null
+++ b/tests/tests.h
@@ -0,0 +1,141 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       tests.h
+/// \brief      Common definitions for test applications
+//
+//  Author:     Lasse Collin
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef LZMA_TESTS_H
+#define LZMA_TESTS_H
+
+#include "sysdefs.h"
+#include "tuklib_integer.h"
+#include "lzma.h"
+#include "tuktest.h"
+
+
+#define memcrap(buf, size) memset(buf, 0xFD, size)
+
+
+// TODO: Remove these three macros once all tests have been converted.
+#define expect(test) ((test) ? 0 : (fprintf(stderr, "%s:%d: %s\n", \
+	__FILE__, __LINE__, #test), abort(), 0))
+
+#define succeed(test) expect(!(test))
+
+#define fail(test) expect(test)
+
+
+// This table and macro allow getting more readable error messages when
+// comparing the lzma_ret enumeration values.
+static const char enum_strings_lzma_ret[][24] = {
+	"LZMA_OK",
+	"LZMA_STREAM_END",
+	"LZMA_NO_CHECK",
+	"LZMA_UNSUPPORTED_CHECK",
+	"LZMA_GET_CHECK",
+	"LZMA_MEM_ERROR",
+	"LZMA_MEMLIMIT_ERROR",
+	"LZMA_FORMAT_ERROR",
+	"LZMA_OPTIONS_ERROR",
+	"LZMA_DATA_ERROR",
+	"LZMA_BUF_ERROR",
+	"LZMA_PROG_ERROR",
+	"LZMA_SEEK_NEEDED",
+};
+
+#define assert_lzma_ret(test_expr, ref_val) \
+	assert_enum_eq(test_expr, ref_val, enum_strings_lzma_ret)
+
+
+static const char enum_strings_lzma_check[][24] = {
+	"LZMA_CHECK_NONE",
+	"LZMA_CHECK_CRC32",
+	"LZMA_CHECK_UNKNOWN_2",
+	"LZMA_CHECK_UNKNOWN_3",
+	"LZMA_CHECK_CRC64",
+	"LZMA_CHECK_UNKNOWN_5",
+	"LZMA_CHECK_UNKNOWN_6",
+	"LZMA_CHECK_UNKNOWN_7",
+	"LZMA_CHECK_UNKNOWN_8",
+	"LZMA_CHECK_UNKNOWN_9",
+	"LZMA_CHECK_SHA256",
+	"LZMA_CHECK_UNKNOWN_11",
+	"LZMA_CHECK_UNKNOWN_12",
+	"LZMA_CHECK_UNKNOWN_13",
+	"LZMA_CHECK_UNKNOWN_14",
+	"LZMA_CHECK_UNKNOWN_15",
+};
+
+#define assert_lzma_check(test_expr, ref_val) \
+	assert_enum_eq(test_expr, ref_val, enum_strings_lzma_check)
+
+
+static inline bool
+coder_loop(lzma_stream *strm, uint8_t *in, size_t in_size,
+		uint8_t *out, size_t out_size,
+		lzma_ret expected_ret, lzma_action finishing_action)
+{
+	size_t in_left = in_size;
+	size_t out_left = out_size > 0 ? out_size + 1 : 0;
+	lzma_action action = LZMA_RUN;
+	lzma_ret ret;
+
+	strm->next_in = NULL;
+	strm->avail_in = 0;
+	strm->next_out = NULL;
+	strm->avail_out = 0;
+
+	while (true) {
+		if (in_left > 0) {
+			if (--in_left == 0)
+				action = finishing_action;
+
+			strm->next_in = in++;
+			strm->avail_in = 1;
+		}
+
+		if (out_left > 0) {
+			--out_left;
+			strm->next_out = out++;
+			strm->avail_out = 1;
+		}
+
+		ret = lzma_code(strm, action);
+		if (ret != LZMA_OK)
+			break;
+	}
+
+	bool error = false;
+
+	if (ret != expected_ret)
+		error = true;
+
+	if (strm->total_in != in_size || strm->total_out != out_size)
+		error = true;
+
+	return error;
+}
+
+
+static inline bool
+decoder_loop_ret(lzma_stream *strm, uint8_t *in, size_t in_size,
+		lzma_ret expected_ret)
+{
+	return coder_loop(strm, in, in_size, NULL, 0, expected_ret, LZMA_RUN);
+}
+
+
+static inline bool
+decoder_loop(lzma_stream *strm, uint8_t *in, size_t in_size)
+{
+	return coder_loop(strm, in, in_size, NULL, 0,
+			LZMA_STREAM_END, LZMA_RUN);
+}
+
+#endif
diff --git a/tests/tuktest.h b/tests/tuktest.h
new file mode 100644
index 0000000..508eace
--- /dev/null
+++ b/tests/tuktest.h
@@ -0,0 +1,1053 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       tuktest.h
+/// \brief      Helper macros for writing simple test programs
+/// \version    2023-01-08
+///
+/// Some inspiration was taken from STest by Keith Nicholas.
+///
+/// This is standard C99/C11 only and thus should be fairly portable
+/// outside POSIX systems too.
+///
+/// This supports putting multiple tests in a single test program
+/// although it is perfectly fine to have only one test per program.
+/// Each test can produce one of these results:
+///   - Pass
+///   - Fail
+///   - Skip
+///   - Hard error (the remaining tests, if any, are not run)
+///
+/// By default this produces an exit status that is compatible with
+/// Automake and Meson, and mostly compatible with CMake.[1]
+/// If a test program contains multiple tests, only one exit code can
+/// be returned. Of the following, the first match is used:
+///   - 99 if any test returned a hard error
+///   - stdlib.h's EXIT_FAILURE if at least one test failed
+///   - 77 if at least one test was skipped or no tests were run at all
+///   - stdlib.h's EXIT_SUCCESS (0 on POSIX); that is, if none of the above
+///     are true then there was at least one test to run and none of them
+///     failed, was skipped, or returned a hard error.
+///
+/// A summary of tests being run and their results are printed to stdout.
+/// If you want ANSI coloring for the output, #define TUKTEST_COLOR.
+/// If you only want output when something goes wrong, #define TUKTEST_QUIET.
+///
+/// The downside of the above mapping is that it cannot indicate if
+/// some tests were skipped and some passed. If that is likely to
+/// happen it may be better to split into multiple test programs (one
+/// test per program) or use the TAP mode described below.
+///
+/// By using #define TUKTEST_TAP before #including this file the
+/// output will be Test Anything Protocol (TAP) version 12 compatible
+/// and the exit status will always be EXIT_SUCCESS. This can be easily
+/// used with Automake via its tap-driver.sh. Meson supports TAP natively.
+/// TAP's todo-directive isn't supported for now, mostly because it's not
+/// trivially convertible to the exit-status reporting method.
+///
+/// If TUKTEST_TAP is used, TUKTEST_QUIET and TUKTEST_COLOR are ignored.
+///
+/// The main() function may look like this (remember to include config.h
+/// or such files too if needed!):
+///
+///     #include "tuktest.h"
+///
+///     int main(int argc, char **argv)
+///     {
+///         tuktest_start(argc, argv);
+///
+///         if (!is_package_foo_available())
+///             tuktest_early_skip("Optional package foo is not available");
+///
+///         if (!do_common_initializations())
+///             tuktest_error("Error during common initializations");
+///
+///         tuktest_run(testfunc1);
+///         tuktest_run(testfunc2);
+///
+///         return tuktest_end();
+///     }
+///
+/// Using exit(tuktest_end()) as a pair to tuktest_start() is OK too.
+///
+/// Each test function called via tuktest_run() should be of type
+/// "void testfunc1(void)". The test functions should use the
+/// various assert_CONDITION() macros. The current test stops if
+/// an assertion fails (this is implemented with setjmp/longjmp).
+/// Execution continues from the next test unless the failure was
+/// due to assert_error() (indicating a hard error) which makes
+/// the program exit() without running any remaining tests.
+///
+/// Search for "define assert" in this file to find the explanations
+/// of the available assertion macros.
+///
+/// IMPORTANT:
+///
+///   - The assert_CONDITION() macros may only be used by code that is
+///     called via tuktest_run()! This includes the function named in
+///     the tuktest_run() call and functions called further from there.
+///     (The assert_CONDITION() macros depend on setup code in tuktest_run()
+///     and other use results in undefined behavior.)
+///
+///   - tuktest_start(), tuktest_early_skip, tuktest_run(), and tuktest_end()
+///     must not be used in the tests called via tuktest_run()! (tuktest_end()
+///     is called more freely internally by this file but such use isn't part
+///     of the API.)
+///
+///   - tuktest_error(), tuktest_malloc(), tuktest_free(),
+///     tuktest_file_from_srcdir(), and tuktest_file_from_builddir()
+///     can be used everywhere after tuktest_start() has been called.
+///     (In tests running under tuktest_run(), assert_error() can be used
+///     instead of tuktest_error() when a hard error occurs.)
+///
+///   - Everything else is for internal use only.
+///
+/// Footnotes:
+///
+/// [1] As of 2022-06-02:
+///     See the Automake manual "info (automake)Scripts-based Testsuites" or:
+///     https://www.gnu.org/software/automake/manual/automake.html#Scripts_002dbased-Testsuites
+///
+///     Meson: https://mesonbuild.com/Unit-tests.html
+///
+///     CMake handles passing and failing tests by default but treats hard
+///     errors as regular fails. To CMake support skipped tests correctly,
+///     one has to set the SKIP_RETURN_CODE property for each test:
+///
+///     set_tests_properties(foo_test_name PROPERTIES SKIP_RETURN_CODE 77)
+///
+///     See:
+///     https://cmake.org/cmake/help/latest/command/set_tests_properties.html
+///     https://cmake.org/cmake/help/latest/prop_test/SKIP_RETURN_CODE.html
+//
+//  Author:    Lasse Collin
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef TUKTEST_H
+#define TUKTEST_H
+
+#include <stddef.h>
+
+// On some (too) old systems inttypes.h doesn't exist or isn't good enough.
+// Include it conditionally so that any portability tricks can be done before
+// tuktest.h is included. On any modern system inttypes.h is fine as is.
+#ifndef PRIu64
+#	include <inttypes.h>
+#endif
+
+#include <setjmp.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+
+#if defined(__GNUC__) && defined(__GNUC_MINOR__)
+#	define TUKTEST_GNUC_REQ(major, minor) \
+		((__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)) \
+			|| __GNUC__ > (major))
+#else
+#	define TUKTEST_GNUC_REQ(major, minor) 0
+#endif
+
+
+// This is silencing warnings about unused functions. Not all test programs
+// need all functions from this header.
+#if TUKTEST_GNUC_REQ(3, 0)
+#	define tuktest_maybe_unused __attribute__((__unused__))
+#else
+#	define tuktest_maybe_unused
+#endif
+
+// We need printf("") so silence the warning about empty format string.
+#if TUKTEST_GNUC_REQ(4, 2)
+#	pragma GCC diagnostic ignored "-Wformat-zero-length"
+#endif
+
+
+// Types and printf format macros to use in integer assertions and also for
+// printing size_t values (C99's %zu isn't available on very old systems).
+typedef int64_t tuktest_int;
+typedef uint64_t tuktest_uint;
+#define TUKTEST_PRId PRId64
+#define TUKTEST_PRIu PRIu64
+#define TUKTEST_PRIX PRIX64
+
+
+// When TAP mode isn't used, Automake-compatible exit statuses are used.
+#define TUKTEST_EXIT_PASS EXIT_SUCCESS
+#define TUKTEST_EXIT_FAIL EXIT_FAILURE
+#define TUKTEST_EXIT_SKIP 77
+#define TUKTEST_EXIT_ERROR 99
+
+
+enum tuktest_result {
+	TUKTEST_PASS,
+	TUKTEST_FAIL,
+	TUKTEST_SKIP,
+	TUKTEST_ERROR,
+};
+
+
+#ifdef TUKTEST_TAP
+#	undef TUKTEST_QUIET
+#	undef TUKTEST_COLOR
+#	undef TUKTEST_TAP
+#	define TUKTEST_TAP 1
+#	define TUKTEST_STR_PASS  "ok -"
+#	define TUKTEST_STR_FAIL  "not ok -"
+#	define TUKTEST_STR_SKIP  "ok - # SKIP"
+#	define TUKTEST_STR_ERROR "Bail out!"
+#else
+#	define TUKTEST_TAP 0
+#	ifdef TUKTEST_COLOR
+#		define TUKTEST_COLOR_PASS  "\x1B[0;32m"
+#		define TUKTEST_COLOR_FAIL  "\x1B[0;31m"
+#		define TUKTEST_COLOR_SKIP  "\x1B[1;34m"
+#		define TUKTEST_COLOR_ERROR "\x1B[0;35m"
+#		define TUKTEST_COLOR_TOTAL "\x1B[1m"
+#		define TUKTEST_COLOR_OFF   "\x1B[m"
+#		define TUKTEST_COLOR_IF(cond, color) ((cond) ? (color) : "" )
+#	else
+#		define TUKTEST_COLOR_PASS  ""
+#		define TUKTEST_COLOR_FAIL  ""
+#		define TUKTEST_COLOR_SKIP  ""
+#		define TUKTEST_COLOR_ERROR ""
+#		define TUKTEST_COLOR_TOTAL ""
+#		define TUKTEST_COLOR_OFF   ""
+#		define TUKTEST_COLOR_IF(cond, color) ""
+#	endif
+#	define TUKTEST_COLOR_ADD(str, color) color str TUKTEST_COLOR_OFF
+#	define TUKTEST_STR_PASS \
+		TUKTEST_COLOR_ADD("PASS:", TUKTEST_COLOR_PASS)
+#	define TUKTEST_STR_FAIL \
+		TUKTEST_COLOR_ADD("FAIL:", TUKTEST_COLOR_FAIL)
+#	define TUKTEST_STR_SKIP \
+		TUKTEST_COLOR_ADD("SKIP:", TUKTEST_COLOR_SKIP)
+#	define TUKTEST_STR_ERROR \
+		TUKTEST_COLOR_ADD("ERROR:", TUKTEST_COLOR_ERROR)
+#endif
+
+// NOTE: If TUKTEST_TAP is defined then TUKTEST_QUIET will get undefined above.
+#ifndef TUKTEST_QUIET
+#	define TUKTEST_QUIET 0
+#else
+#	undef TUKTEST_QUIET
+#	define TUKTEST_QUIET 1
+#endif
+
+
+// Counts of the passed, failed, skipped, and hard-errored tests.
+// This is indexed with the enumeration constants from enum tuktest_result.
+static unsigned tuktest_stats[4] = { 0, 0, 0, 0 };
+
+// Copy of argc and argv from main(). These are set by tuktest_start().
+static int tuktest_argc = 0;
+static char **tuktest_argv = NULL;
+
+// Name of the currently-running test. This exists because it's nice
+// to print the main test function name even if the failing test-assertion
+// fails in a function called by the main test function.
+static const char *tuktest_name = NULL;
+
+// longjmp() target for when a test-assertion fails.
+static jmp_buf tuktest_jmpenv;
+
+
+// This declaration is needed for tuktest_malloc().
+static int tuktest_end(void);
+
+
+// Internal helper for handling hard errors both inside and
+// outside tuktest_run().
+#define tuktest_error_impl(filename, line, ...) \
+do { \
+	tuktest_print_result_prefix(TUKTEST_ERROR, filename, line); \
+	printf(__VA_ARGS__); \
+	printf("\n"); \
+	++tuktest_stats[TUKTEST_ERROR]; \
+	exit(tuktest_end()); \
+} while (0)
+
+
+// printf() is without checking its return value in many places. This function
+// is called before exiting to check the status of stdout and catch errors.
+static void
+tuktest_catch_stdout_errors(void)
+{
+	if (ferror(stdout) || fclose(stdout)) {
+		fputs("Error while writing to stdout\n", stderr);
+		exit(TUKTEST_EXIT_ERROR);
+	}
+}
+
+
+// A simplified basename()-like function that is good enough for
+// cleaning up __FILE__. This supports / and \ as path separator.
+// If the path separator is wrong then the full path will be printed;
+// it's a cosmetic problem only.
+static const char *
+tuktest_basename(const char *filename)
+{
+	for (const char *p = filename + strlen(filename); p > filename; --p)
+		if (*p == '/' || *p == '\\')
+			return p + 1;
+
+	return filename;
+}
+
+
+// Internal helper that prints the prefix of the fail/skip/error message line.
+static void
+tuktest_print_result_prefix(enum tuktest_result result,
+		const char *filename, unsigned line)
+{
+	// This is never called with TUKTEST_PASS but I kept it here anyway.
+	const char *result_str
+			= result == TUKTEST_PASS ? TUKTEST_STR_PASS
+			: result == TUKTEST_FAIL ? TUKTEST_STR_FAIL
+			: result == TUKTEST_SKIP ? TUKTEST_STR_SKIP
+			: TUKTEST_STR_ERROR;
+
+	const char *short_filename = tuktest_basename(filename);
+
+	if (tuktest_name != NULL)
+		printf("%s %s [%s:%u] ", result_str, tuktest_name,
+				short_filename, line);
+	else
+		printf("%s [%s:%u] ", result_str, short_filename, line);
+}
+
+
+// An entry for linked list of memory allocations.
+struct tuktest_malloc_record {
+	struct tuktest_malloc_record *next;
+	void *p;
+};
+
+// Linked list of per-test allocations. This is used when under tuktest_run().
+// These allocations are freed in tuktest_run() and, in case of a hard error,
+// also in tuktest_end().
+static struct tuktest_malloc_record *tuktest_malloc_test = NULL;
+
+// Linked list of global allocations. This is used allocations are made
+// outside tuktest_run(). These are freed in tuktest_end().
+static struct tuktest_malloc_record *tuktest_malloc_global = NULL;
+
+
+/// A wrapper for malloc() that never return NULL and the allocated memory is
+/// automatically freed at the end of tuktest_run() (if allocation was done
+/// within a test) or early in tuktest_end() (if allocation was done outside
+/// tuktest_run()).
+///
+/// If allocation fails, a hard error is reported and this function won't
+/// return. Possible other tests won't be run (this will call exit()).
+#define tuktest_malloc(size) tuktest_malloc_impl(size, __FILE__, __LINE__)
+
+static void *
+tuktest_malloc_impl(size_t size, const char *filename, unsigned line)
+{
+	void *p = malloc(size == 0 ? 1 : size);
+	struct tuktest_malloc_record *r = malloc(sizeof(*r));
+
+	if (p == NULL || r == NULL) {
+		free(r);
+		free(p);
+
+		// Avoid %zu for portability to very old systems that still
+		// can compile C99 code.
+		tuktest_error_impl(filename, line,
+				"tuktest_malloc(%" TUKTEST_PRIu ") failed",
+				(tuktest_uint)size);
+	}
+
+	r->p = p;
+
+	if (tuktest_name == NULL) {
+		// We were called outside tuktest_run().
+		r->next = tuktest_malloc_global;
+		tuktest_malloc_global = r;
+	} else {
+		// We were called under tuktest_run().
+		r->next = tuktest_malloc_test;
+		tuktest_malloc_test = r;
+	}
+
+	return p;
+}
+
+
+/// Frees memory allocated using tuktest_malloc(). Usually this isn't needed
+/// as the memory is freed automatically.
+///
+/// NULL is silently ignored.
+///
+/// NOTE: Under tuktest_run() only memory allocated there can be freed.
+/// That is,  allocations done outside tuktest_run() can only be freed
+/// outside tuktest_run().
+#define tuktest_free(ptr) tuktest_free_impl(ptr, __FILE__, __LINE__)
+
+static void
+tuktest_free_impl(void *p, const char *filename, unsigned line)
+{
+	if (p == NULL)
+		return;
+
+	struct tuktest_malloc_record **r = tuktest_name != NULL
+			? &tuktest_malloc_test : &tuktest_malloc_global;
+
+	while (*r != NULL) {
+		struct tuktest_malloc_record *tmp = *r;
+
+		if (tmp->p == p) {
+			*r = tmp->next;
+			free(p);
+			free(tmp);
+			return;
+		}
+
+		r = &tmp->next;
+	}
+
+	tuktest_error_impl(filename, line, "tuktest_free: "
+			"Allocation matching the pointer was not found");
+}
+
+
+// Frees all allocates in the given record list. The argument must be
+// either &tuktest_malloc_test or &tuktest_malloc_global.
+static void
+tuktest_free_all(struct tuktest_malloc_record **r)
+{
+	while (*r != NULL) {
+		struct tuktest_malloc_record *tmp = *r;
+		*r = tmp->next;
+		free(tmp->p);
+		free(tmp);
+	}
+}
+
+
+/// Initialize the test framework. No other functions or macros
+/// from this file may be called before calling this.
+///
+/// If the arguments from main() aren't available, use 0 and NULL.
+/// If these are set, then only a subset of tests can be run by
+/// specifying their names on the command line.
+#define tuktest_start(argc, argv) \
+do { \
+	tuktest_argc = argc; \
+	tuktest_argv = argv; \
+	if (!TUKTEST_TAP && !TUKTEST_QUIET) \
+		printf("=== %s ===\n", tuktest_basename(__FILE__)); \
+} while (0)
+
+
+/// If it can be detected early that no tests can be run, this macro can
+/// be called after tuktest_start() but before any tuktest_run() to print
+/// a reason why the tests were skipped. Note that this macro calls exit().
+///
+/// Using "return tuktest_end();" in main() when no tests were run has
+/// the same result as tuktest_early_skip() except that then no reason
+/// for the skipping can be printed.
+#define tuktest_early_skip(...) \
+do { \
+	printf("%s [%s:%u] ", \
+			TUKTEST_TAP ? "1..0 # SKIP" : TUKTEST_STR_SKIP, \
+			tuktest_basename(__FILE__), __LINE__); \
+	printf(__VA_ARGS__); \
+	printf("\n"); \
+	if (!TUKTEST_TAP && !TUKTEST_QUIET) \
+		printf("=== END ===\n"); \
+	tuktest_catch_stdout_errors(); \
+	exit(TUKTEST_TAP ? EXIT_SUCCESS : TUKTEST_EXIT_SKIP); \
+} while (0)
+
+
+/// Some test programs need to do initializations before or between
+/// calls to tuktest_run(). If such initializations unexpectedly fail,
+/// tuktest_error() can be used to report it as a hard error outside
+/// test functions, for example, in main(). Then the remaining tests
+/// won't be run (this macro calls exit()).
+///
+/// Typically tuktest_error() would be used before any tuktest_run()
+/// calls but it is also possible to use tuktest_error() after one or
+/// more tests have been run with tuktest_run(). This is in contrast to
+/// tuktest_early_skip() which must never be called after tuktest_run().
+///
+/// NOTE: tuktest_start() must have been called before tuktest_error().
+///
+/// NOTE: This macro can be called from test functions running under
+/// tuktest_run() but assert_error() is somewhat preferred in that context.
+#define tuktest_error(...) tuktest_error_impl(__FILE__, __LINE__, __VA_ARGS__)
+
+
+/// At the end of main() one should have "return tuktest_end();" which
+/// prints the stats or the TAP plan, and handles the exit status.
+/// Using exit(tuktest_end()) is OK too.
+///
+/// If the test program can detect early that all tests must be skipped,
+/// then tuktest_early_skip() may be useful so that the reason why the
+/// tests were skipped can be printed.
+static int
+tuktest_end(void)
+{
+	tuktest_free_all(&tuktest_malloc_test);
+	tuktest_free_all(&tuktest_malloc_global);
+
+	unsigned total_tests = 0;
+	for (unsigned i = 0; i <= TUKTEST_ERROR; ++i)
+		total_tests += tuktest_stats[i];
+
+	if (tuktest_stats[TUKTEST_ERROR] == 0 && tuktest_argc > 1
+			&& (unsigned)(tuktest_argc - 1) > total_tests) {
+		printf(TUKTEST_STR_ERROR " Fewer tests were run than "
+				"specified on the command line. "
+				"Was a test name mistyped?\n");
+		++tuktest_stats[TUKTEST_ERROR];
+	}
+
+#if TUKTEST_TAP
+	// Print the plan only if no "Bail out!" has occurred.
+	// Print the skip directive if no tests were run.
+	// We cannot know the reason for the skip here though
+	// (see tuktest_early_skip()).
+	if (tuktest_stats[TUKTEST_ERROR] == 0)
+		printf("1..%u%s\n", total_tests,
+				total_tests == 0 ? " # SKIP" : "");
+
+	tuktest_catch_stdout_errors();
+	return EXIT_SUCCESS;
+#else
+	if (!TUKTEST_QUIET)
+		printf("---\n"
+				"%s# TOTAL: %u" TUKTEST_COLOR_OFF "\n"
+				"%s# PASS:  %u" TUKTEST_COLOR_OFF "\n"
+				"%s# SKIP:  %u" TUKTEST_COLOR_OFF "\n"
+				"%s# FAIL:  %u" TUKTEST_COLOR_OFF "\n"
+				"%s# ERROR: %u" TUKTEST_COLOR_OFF "\n"
+				"=== END ===\n",
+				TUKTEST_COLOR_TOTAL,
+				total_tests,
+				TUKTEST_COLOR_IF(
+					tuktest_stats[TUKTEST_PASS] > 0,
+					TUKTEST_COLOR_PASS),
+				tuktest_stats[TUKTEST_PASS],
+				TUKTEST_COLOR_IF(
+					tuktest_stats[TUKTEST_SKIP] > 0,
+					TUKTEST_COLOR_SKIP),
+				tuktest_stats[TUKTEST_SKIP],
+				TUKTEST_COLOR_IF(
+					tuktest_stats[TUKTEST_FAIL] > 0,
+					TUKTEST_COLOR_FAIL),
+				tuktest_stats[TUKTEST_FAIL],
+				TUKTEST_COLOR_IF(
+					tuktest_stats[TUKTEST_ERROR] > 0,
+					TUKTEST_COLOR_ERROR),
+				tuktest_stats[TUKTEST_ERROR]);
+
+	tuktest_catch_stdout_errors();
+
+	if (tuktest_stats[TUKTEST_ERROR] > 0)
+		return TUKTEST_EXIT_ERROR;
+
+	if (tuktest_stats[TUKTEST_FAIL] > 0)
+		return TUKTEST_EXIT_FAIL;
+
+	if (tuktest_stats[TUKTEST_SKIP] > 0 || total_tests == 0)
+		return TUKTEST_EXIT_SKIP;
+
+	return TUKTEST_EXIT_PASS;
+#endif
+}
+
+
+/// Runs the specified test function. Requires that tuktest_start()
+/// has already been called and that tuktest_end() has NOT been called yet.
+#define tuktest_run(testfunc) \
+	tuktest_run_test(&(testfunc), #testfunc)
+
+tuktest_maybe_unused
+static void
+tuktest_run_test(void (*testfunc)(void), const char *testfunc_str)
+{
+	// If any command line arguments were given, only the test functions
+	// named on the command line will be run.
+	if (tuktest_argc > 1) {
+		int i = 1;
+		while (strcmp(tuktest_argv[i], testfunc_str) != 0)
+			if (++i == tuktest_argc)
+				return;
+	}
+
+	// This is set so that failed assertions can print the correct
+	// test name even when the assertion is in a helper function
+	// called by the test function.
+	tuktest_name = testfunc_str;
+
+	// The way setjmp() may be called is very restrictive.
+	// A switch statement is one of the few conforming ways
+	// to get the value passed to longjmp(); doing something
+	// like "int x = setjmp(env)" is NOT allowed (undefined behavior).
+	switch (setjmp(tuktest_jmpenv)) {
+		case 0:
+			testfunc();
+			++tuktest_stats[TUKTEST_PASS];
+			if (!TUKTEST_QUIET)
+				printf(TUKTEST_STR_PASS " %s\n", tuktest_name);
+			break;
+
+		case TUKTEST_FAIL:
+			++tuktest_stats[TUKTEST_FAIL];
+			break;
+
+		case TUKTEST_SKIP:
+			++tuktest_stats[TUKTEST_SKIP];
+			break;
+
+		default:
+			++tuktest_stats[TUKTEST_ERROR];
+			exit(tuktest_end());
+	}
+
+	tuktest_free_all(&tuktest_malloc_test);
+	tuktest_name = NULL;
+}
+
+
+// Maximum allowed file size in tuktest_file_from_* macros and functions.
+#ifndef TUKTEST_FILE_SIZE_MAX
+#	define TUKTEST_FILE_SIZE_MAX (64L << 20)
+#endif
+
+/// Allocates memory and reads the specified file into a buffer.
+/// If the environment variable srcdir is set, it will be prefixed
+/// to the filename. Otherwise the filename is used as is (and so
+/// the behavior is identical to tuktest_file_from_builddir() below).
+///
+/// On success the a pointer to malloc'ed memory is returned.
+/// The size of the allocation and the file is stored in *size.
+///
+/// If anything goes wrong, a hard error is reported and this function
+/// won't return. Possible other tests won't be run (this will call exit()).
+///
+/// Empty files and files over TUKTEST_FILE_SIZE_MAX are rejected.
+/// The assumption is that something is wrong in these cases.
+///
+/// This function can be called either from outside the tests (like in main())
+/// or from tests run via tuktest_run(). Remember to free() the memory to
+/// keep Valgrind happy.
+#define tuktest_file_from_srcdir(filename, sizeptr) \
+	tuktest_file_from_x(getenv("srcdir"), filename, sizeptr, \
+			__FILE__, __LINE__)
+
+/// Like tuktest_file_from_srcdir except this reads from the current directory.
+#define tuktest_file_from_builddir(filename, sizeptr) \
+	tuktest_file_from_x(NULL, filename, sizeptr, __FILE__, __LINE__)
+
+// Internal helper for the macros above.
+tuktest_maybe_unused
+static void *
+tuktest_file_from_x(const char *prefix, const char *filename, size_t *size,
+		const char *prog_filename, unsigned prog_line)
+{
+	// If needed: buffer for holding prefix + '/' + filename + '\0'.
+	char *alloc_name = NULL;
+
+	// Buffer for the data read from the file.
+	void *buf = NULL;
+
+	// File being read
+	FILE *f = NULL;
+
+	// Error message to use under the "error:" label.
+	const char *error_msg = NULL;
+
+	if (filename == NULL) {
+		error_msg = "Filename is NULL";
+		filename = "(NULL)";
+		goto error;
+	}
+
+	if (filename[0] == '\0') {
+		error_msg = "Filename is an empty string";
+		filename = "(empty string)";
+		goto error;
+	}
+
+	if (size == NULL) {
+		error_msg = "The size argument is NULL";
+		goto error;
+	}
+
+	// If a prefix was given, construct the full filename.
+	if (prefix != NULL && prefix[0] != '\0') {
+		const size_t prefix_len = strlen(prefix);
+		const size_t filename_len = strlen(filename);
+
+		const size_t alloc_name_size
+				= prefix_len + 1 + filename_len + 1;
+		alloc_name = tuktest_malloc_impl(alloc_name_size,
+				prog_filename, prog_line);
+
+		memcpy(alloc_name, prefix, prefix_len);
+		alloc_name[prefix_len] = '/';
+		memcpy(alloc_name + prefix_len + 1, filename, filename_len);
+		alloc_name[prefix_len + 1 + filename_len] = '\0';
+
+		// Set filename to point to the new string. alloc_name
+		// can be freed unconditionally as it is NULL if a prefix
+		// wasn't specified.
+		filename = alloc_name;
+	}
+
+	f = fopen(filename, "rb");
+	if (f == NULL) {
+		error_msg = "Failed to open the file";
+		goto error;
+	}
+
+	// Get the size of the file and store it in *size.
+	//
+	// We assume that the file isn't big and even reject very big files.
+	// There is no need to use fseeko/ftello from POSIX to support
+	// large files. Using standard C functions is portable outside POSIX.
+	if (fseek(f, 0, SEEK_END) != 0) {
+		error_msg = "Seeking failed (fseek end)";
+		goto error;
+	}
+
+	const long end = ftell(f);
+	if (end < 0) {
+		error_msg = "Seeking failed (ftell)";
+		goto error;
+	}
+
+	if (end == 0) {
+		error_msg = "File is empty";
+		goto error;
+	}
+
+	if (end > TUKTEST_FILE_SIZE_MAX) {
+		error_msg = "File size exceeds TUKTEST_FILE_SIZE_MAX";
+		goto error;
+	}
+
+	*size = (size_t)end;
+	rewind(f);
+
+	buf = tuktest_malloc_impl(*size, prog_filename, prog_line);
+
+	const size_t amount = fread(buf, 1, *size, f);
+	if (ferror(f)) {
+		error_msg = "Read error";
+		goto error;
+	}
+
+	if (amount != *size) {
+		error_msg = "File is smaller than indicated by ftell()";
+		goto error;
+	}
+
+	const int fclose_ret = fclose(f);
+	f = NULL;
+	if (fclose_ret != 0) {
+		error_msg = "Error closing the file";
+		goto error;
+	}
+
+	tuktest_free(alloc_name);
+	return buf;
+
+error:
+	if (f != NULL)
+		(void)fclose(f);
+
+	tuktest_error_impl(prog_filename, prog_line,
+			"tuktest_file_from_x: %s: %s\n", filename, error_msg);
+}
+
+
+// Internal helper for assert_fail, assert_skip, and assert_error.
+#define tuktest_print_and_jump(result, ...) \
+do { \
+	tuktest_print_result_prefix(result, __FILE__, __LINE__); \
+	printf(__VA_ARGS__); \
+	printf("\n"); \
+	longjmp(tuktest_jmpenv, result); \
+} while (0)
+
+
+/// Unconditionally fails the test (non-zero exit status if not using TAP).
+/// Execution will continue from the next test.
+///
+/// A printf format string is supported.
+/// If no extra message is wanted, use "" as the argument.
+#define assert_fail(...) tuktest_print_and_jump(TUKTEST_FAIL, __VA_ARGS__)
+
+
+/// Skips the test (exit status 77 if not using TAP).
+/// Execution will continue from the next test.
+///
+/// If you can detect early that no tests can be run, tuktest_early_skip()
+/// might be a better way to skip the test(s). Especially in TAP mode this
+/// makes a difference as with assert_skip() it will list a skipped specific
+/// test name but with tuktest_early_skip() it will indicate that the whole
+/// test program was skipped (with tuktest_early_skip() the TAP plan will
+/// indicate zero tests).
+///
+/// A printf format string is supported.
+/// If no extra message is wanted, use "" as the argument.
+#define assert_skip(...) tuktest_print_and_jump(TUKTEST_SKIP, __VA_ARGS__)
+
+
+/// Hard error (exit status 99 if not using TAP).
+/// The remaining tests in this program will not be run or reported.
+///
+/// A printf format string is supported.
+/// If no extra message is wanted, use "" as the argument.
+#define assert_error(...) tuktest_print_and_jump(TUKTEST_ERROR, __VA_ARGS__)
+
+
+/// Fails the test if the test expression doesn't evaluate to false.
+#define assert_false(test_expr) \
+do { \
+	if (test_expr) \
+		assert_fail("assert_fail: '%s' is true but should be false", \
+				#test_expr); \
+} while (0)
+
+
+/// Fails the test if the test expression doesn't evaluate to true.
+#define assert_true(test_expr) \
+do { \
+	if (!(test_expr)) \
+		assert_fail("assert_true: '%s' is false but should be true", \
+				#test_expr); \
+} while (0)
+
+
+/// Fails the test if comparing the signed integer expressions using the
+/// specified comparison operator evaluates to false. For example,
+/// assert_int(foobar(), >=, 0) fails the test if 'foobar() >= 0' isn't true.
+/// For good error messages, the first argument should be the test expression
+/// and the third argument the reference value (usually a constant).
+///
+/// For equality (==) comparison there is a assert_int_eq() which
+/// might be more convenient to use.
+#define assert_int(test_expr, cmp_op, ref_value) \
+do { \
+	const tuktest_int v_test_ = (test_expr); \
+	const tuktest_int v_ref_ = (ref_value); \
+	if (!(v_test_ cmp_op v_ref_)) \
+		assert_fail("assert_int: '%s == %" TUKTEST_PRId \
+				"' but expected '... %s %" TUKTEST_PRId "'", \
+				#test_expr, v_test_, #cmp_op, v_ref_); \
+} while (0)
+
+
+/// Like assert_int() but for unsigned integers.
+///
+/// For equality (==) comparison there is a assert_uint_eq() which
+/// might be more convenient to use.
+#define assert_uint(test_expr, cmp_op, ref_value) \
+do { \
+	const tuktest_uint v_test_ = (test_expr); \
+	const tuktest_uint v_ref_ = (ref_value); \
+	if (!(v_test_ cmp_op v_ref_)) \
+		assert_fail("assert_uint: '%s == %" TUKTEST_PRIu \
+				"' but expected '... %s %" TUKTEST_PRIu "'", \
+				#test_expr, v_test_, #cmp_op, v_ref_); \
+} while (0)
+
+
+/// Fails the test if test expression doesn't equal the expected
+/// signed integer value.
+#define assert_int_eq(test_expr, ref_value) \
+	assert_int(test_expr, ==, ref_value)
+
+
+/// Fails the test if test expression doesn't equal the expected
+/// unsigned integer value.
+#define assert_uint_eq(test_expr, ref_value) \
+	assert_uint(test_expr, ==, ref_value)
+
+
+/// Fails the test if the test expression doesn't equal the expected
+/// enumeration value. This is like assert_int_eq() but the error message
+/// shows the enumeration constant names instead of their numeric values
+/// as long as the values are non-negative and not big.
+///
+/// The third argument must be a table of string pointers. A pointer to
+/// a pointer doesn't work because this determines the number of elements
+/// in the array using sizeof. For example:
+///
+///     const char *my_enum_names[] = { "MY_FOO", "MY_BAR", "MY_BAZ" };
+///     assert_enum_eq(some_func_returning_my_enum(), MY_BAR, my_enum_names);
+///
+/// (If the reference value is out of bounds, both values are printed as
+/// an integer. If only test expression is out of bounds, it is printed
+/// as an integer and the reference as a string. Otherwise both are printed
+/// as a string.)
+#define assert_enum_eq(test_expr, ref_value, enum_strings) \
+do { \
+	const tuktest_int v_test_ = (test_expr); \
+	const tuktest_int v_ref_ = (ref_value); \
+	if (v_test_ != v_ref_) { \
+		const int array_len_ = (int)(sizeof(enum_strings) \
+				/ sizeof((enum_strings)[0])); \
+		if (v_ref_ < 0 || v_ref_ >= array_len_) \
+			assert_fail("assert_enum_eq: '%s == %" TUKTEST_PRId \
+					"' but expected " \
+					"'... == %" TUKTEST_PRId "'", \
+					#test_expr, v_test_, v_ref_); \
+		else if (v_test_ < 0 || v_test_ >= array_len_) \
+			assert_fail("assert_enum_eq: '%s == %" TUKTEST_PRId \
+					"' but expected '... == %s'", \
+					#test_expr, v_test_, \
+					(enum_strings)[v_ref_]); \
+		else \
+			assert_fail("assert_enum_eq: '%s == %s' " \
+					"but expected '... = %s'", \
+					#test_expr, (enum_strings)[v_test_], \
+					(enum_strings)[v_ref_]); \
+	} \
+} while (0)
+
+
+/// Fails the test if the specified bit isn't set in the test expression.
+#define assert_bit_set(test_expr, bit) \
+do { \
+	const tuktest_uint v_test_ = (test_expr); \
+	const unsigned v_bit_ = (bit); \
+	const tuktest_uint v_mask_ = (tuktest_uint)1 << v_bit_; \
+	if (!(v_test_ & v_mask_)) \
+		assert_fail("assert_bit_set: '%s == 0x%" TUKTEST_PRIX \
+				"' but bit %u (0x%" TUKTEST_PRIX ") " \
+				"is not set", \
+				#test_expr, v_test_, v_bit_, v_mask_); \
+} while (0)
+
+
+/// Fails the test if the specified bit is set in the test expression.
+#define assert_bit_not_set(test_expr, bit) \
+do { \
+	const tuktest_uint v_test_ = (test_expr); \
+	const unsigned v_bit_ = (bit); \
+	const tuktest_uint v_mask_ = (tuktest_uint)1 << v_bit_; \
+	if (v_test_ & v_mask_) \
+		assert_fail("assert_bit_not_set: '%s == 0x%" TUKTEST_PRIX \
+				"' but bit %u (0x%" TUKTEST_PRIX ") is set", \
+				#test_expr, v_test_, v_bit_, v_mask_); \
+} while (0)
+
+
+/// Fails the test if unless all bits that are set in the bitmask are also
+/// set in the test expression.
+#define assert_bitmask_set(test_expr, mask) \
+do { \
+	const tuktest_uint v_mask_ = (mask); \
+	const tuktest_uint v_test_ = (test_expr) & v_mask_; \
+	if (v_test_ != v_mask_) \
+		assert_fail("assert_bitmask_set: " \
+				"'((%s) & 0x%" TUKTEST_PRIX ") == " \
+				"0x%" TUKTEST_PRIX "' but expected " \
+				"'... == 0x%" TUKTEST_PRIX "'", \
+				#test_expr, v_mask_, v_test_, v_mask_); \
+} while (0)
+
+
+/// Fails the test if any of the bits that are set in the bitmask are also
+/// set in the test expression.
+#define assert_bitmask_not_set(test_expr, mask) \
+do { \
+	const tuktest_uint v_mask_ = (mask); \
+	const tuktest_uint v_test_ = (test_expr) & v_mask_; \
+	if (v_test_ != 0) \
+		assert_fail("assert_bitmask_not_set: "\
+				"'((%s) & 0x%" TUKTEST_PRIX ") == " \
+				"0x%" TUKTEST_PRIX "' but expected " \
+				"'... == 0'", \
+				#test_expr, v_mask_, v_test_); \
+} while (0)
+
+
+// Internal helper to add common code for string assertions.
+#define tuktest_str_helper1(macro_name, test_expr, ref_value) \
+	const char *v_test_ = (test_expr); \
+	const char *v_ref_ = (ref_value); \
+	if (v_test_ == NULL) \
+		assert_fail(macro_name ": Test expression '%s' is NULL", \
+				#test_expr); \
+	if (v_ref_ == NULL) \
+		assert_fail(macro_name ": Reference value '%s' is NULL", \
+				#ref_value)
+
+
+// Internal helper to add common code for string assertions and to check
+// that the reference value isn't an empty string.
+#define tuktest_str_helper2(macro_name, test_expr, ref_value) \
+	tuktest_str_helper1(macro_name, test_expr, ref_value); \
+	if (v_ref_[0] == '\0') \
+		assert_fail(macro_name ": Reference value is an empty string")
+
+
+/// Fails the test if the test expression evaluates to string that doesn't
+/// equal to the expected string.
+#define assert_str_eq(test_expr, ref_value) \
+do { \
+	tuktest_str_helper1("assert_str_eq", test_expr, ref_value); \
+	if (strcmp(v_ref_, v_test_) != 0) \
+		assert_fail("assert_str_eq: '%s' evaluated to '%s' " \
+				"but expected '%s'", \
+				#test_expr, v_test_, v_ref_); \
+} while (0)
+
+
+/// Fails the test if the test expression evaluates to a string that doesn't
+/// contain the reference value as a substring. Also fails the test if
+/// the reference value is an empty string.
+#define assert_str_contains(test_expr, ref_value) \
+do { \
+	tuktest_str_helper2("assert_str_contains", test_expr, ref_value); \
+	if (strstr(v_test_, v_ref_) == NULL) \
+		assert_fail("assert_str_contains: '%s' evaluated to '%s' " \
+				"which doesn't contain '%s'", \
+				#test_expr, v_test_, v_ref_); \
+} while (0)
+
+
+/// Fails the test if the test expression evaluates to a string that
+/// contains the reference value as a substring. Also fails the test if
+/// the reference value is an empty string.
+#define assert_str_doesnt_contain(test_expr, ref_value) \
+do { \
+	tuktest_str_helper2("assert_str_doesnt_contain", \
+			test_expr, ref_value); \
+	if (strstr(v_test_, v_ref_) != NULL) \
+		assert_fail("assert_str_doesnt_contain: " \
+				"'%s' evaluated to '%s' which contains '%s'", \
+				#test_expr, v_test_, v_ref_); \
+} while (0)
+
+
+/// Fails the test if the first array_size elements of the test array
+/// don't equal to correct_array.
+///
+/// NOTE: This avoids %zu for portability to very old systems that still
+/// can compile C99 code.
+#define assert_array_eq(test_array, correct_array, array_size) \
+do { \
+	for (size_t i_ = 0; i_ < (array_size); ++i_) \
+		if ((test_array)[i_] != (correct_array)[i_]) \
+			assert_fail("assert_array_eq: " \
+					"%s[%" TUKTEST_PRIu "] != "\
+					"%s[%" TUKTEST_PRIu "] " \
+					"but should be equal", \
+					#test_array, (tuktest_uint)i_, \
+					#correct_array, (tuktest_uint)i_); \
+} while (0)
+
+#endif
diff --git a/tests/xzgrep_expected_output b/tests/xzgrep_expected_output
new file mode 100644
index 0000000..e531d93
--- /dev/null
+++ b/tests/xzgrep_expected_output
@@ -0,0 +1,39 @@
+=> xzgrep  el <=
+xzgrep_test_1.xz:elit, sed do eiusmod tempor incididunt ut 
+xzgrep_test_1.xz:in voluptate velit esse cillum dolore eu 
+xzgrep_test_2.xz:Hello
+retval 0
+=> xzgrep -l el <=
+xzgrep_test_1.xz
+xzgrep_test_2.xz
+retval 0
+=> xzgrep -h el <=
+elit, sed do eiusmod tempor incididunt ut 
+in voluptate velit esse cillum dolore eu 
+Hello
+retval 0
+=> xzgrep -H el <=
+xzgrep_test_1.xz:elit, sed do eiusmod tempor incididunt ut 
+xzgrep_test_1.xz:in voluptate velit esse cillum dolore eu 
+xzgrep_test_2.xz:Hello
+retval 0
+=> xzgrep  Hello <=
+xzgrep_test_2.xz:Hello
+retval 0
+=> xzgrep -l Hello <=
+xzgrep_test_2.xz
+retval 0
+=> xzgrep -h Hello <=
+Hello
+retval 0
+=> xzgrep -H Hello <=
+xzgrep_test_2.xz:Hello
+retval 0
+=> xzgrep  NOMATCH <=
+retval 1
+=> xzgrep -l NOMATCH <=
+retval 1
+=> xzgrep -h NOMATCH <=
+retval 1
+=> xzgrep -H NOMATCH <=
+retval 1
author	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-04-27 21:12:04 +0000
committer	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-04-27 21:12:04 +0000
commit	eac54b7c4aec25060d7bd856f7cdc290943d6aae (patch)
tree	9a6d81c9f88df4698e746d63d14ddafeddd918b8 /tests
parent	Initial commit. (diff)
download	xz-utils-eac54b7c4aec25060d7bd856f7cdc290943d6aae.tar.xz xz-utils-eac54b7c4aec25060d7bd856f7cdc290943d6aae.zip