5 files changed, 1937 insertions, 0 deletions
diff --git a/test-driver b/test-driver
new file mode 100755
index 0000000..89dba1e
--- /dev/null
+++ b/test-driver
@@ -0,0 +1,148 @@
+#! /bin/sh
+# test-driver - basic testsuite driver script.
+
+scriptversion=2018-03-07.03; # UTC
+
+# Copyright (C) 2011-2020 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# This file is maintained in Automake, please report
+# bugs to <bug-automake@gnu.org> or send patches to
+# <automake-patches@gnu.org>.
+
+# Make unconditional expansion of undefined variables an error.  This
+# helps a lot in preventing typo-related bugs.
+set -u
+
+usage_error ()
+{
+  echo "$0: $*" >&2
+  print_usage >&2
+  exit 2
+}
+
+print_usage ()
+{
+  cat <<END
+Usage:
+  test-driver --test-name=NAME --log-file=PATH --trs-file=PATH
+              [--expect-failure={yes|no}] [--color-tests={yes|no}]
+              [--enable-hard-errors={yes|no}] [--]
+              TEST-SCRIPT [TEST-SCRIPT-ARGUMENTS]
+The '--test-name', '--log-file' and '--trs-file' options are mandatory.
+END
+}
+
+test_name= # Used for reporting.
+log_file=  # Where to save the output of the test script.
+trs_file=  # Where to save the metadata of the test run.
+expect_failure=no
+color_tests=no
+enable_hard_errors=yes
+while test $# -gt 0; do
+  case $1 in
+  --help) print_usage; exit $?;;
+  --version) echo "test-driver $scriptversion"; exit $?;;
+  --test-name) test_name=$2; shift;;
+  --log-file) log_file=$2; shift;;
+  --trs-file) trs_file=$2; shift;;
+  --color-tests) color_tests=$2; shift;;
+  --expect-failure) expect_failure=$2; shift;;
+  --enable-hard-errors) enable_hard_errors=$2; shift;;
+  --) shift; break;;
+  -*) usage_error "invalid option: '$1'";;
+   *) break;;
+  esac
+  shift
+done
+
+missing_opts=
+test x"$test_name" = x && missing_opts="$missing_opts --test-name"
+test x"$log_file"  = x && missing_opts="$missing_opts --log-file"
+test x"$trs_file"  = x && missing_opts="$missing_opts --trs-file"
+if test x"$missing_opts" != x; then
+  usage_error "the following mandatory options are missing:$missing_opts"
+fi
+
+if test $# -eq 0; then
+  usage_error "missing argument"
+fi
+
+if test $color_tests = yes; then
+  # Keep this in sync with 'lib/am/check.am:$(am__tty_colors)'.
+  red='[0;31m' # Red.
+  grn='[0;32m' # Green.
+  lgn='[1;32m' # Light green.
+  blu='[1;34m' # Blue.
+  mgn='[0;35m' # Magenta.
+  std='[m'     # No color.
+else
+  red= grn= lgn= blu= mgn= std=
+fi
+
+do_exit='rm -f $log_file $trs_file; (exit $st); exit $st'
+trap "st=129; $do_exit" 1
+trap "st=130; $do_exit" 2
+trap "st=141; $do_exit" 13
+trap "st=143; $do_exit" 15
+
+# Test script is run here.
+"$@" >$log_file 2>&1
+estatus=$?
+
+if test $enable_hard_errors = no && test $estatus -eq 99; then
+  tweaked_estatus=1
+else
+  tweaked_estatus=$estatus
+fi
+
+case $tweaked_estatus:$expect_failure in
+  0:yes) col=$red res=XPASS recheck=yes gcopy=yes;;
+  0:*)   col=$grn res=PASS  recheck=no  gcopy=no;;
+  77:*)  col=$blu res=SKIP  recheck=no  gcopy=yes;;
+  99:*)  col=$mgn res=ERROR recheck=yes gcopy=yes;;
+  *:yes) col=$lgn res=XFAIL recheck=no  gcopy=yes;;
+  *:*)   col=$red res=FAIL  recheck=yes gcopy=yes;;
+esac
+
+# Report the test outcome and exit status in the logs, so that one can
+# know whether the test passed or failed simply by looking at the '.log'
+# file, without the need of also peaking into the corresponding '.trs'
+# file (automake bug#11814).
+echo "$res $test_name (exit status: $estatus)" >>$log_file
+
+# Report outcome to console.
+echo "${col}${res}${std}: $test_name"
+
+# Register the test result, and other relevant metadata.
+echo ":test-result: $res" > $trs_file
+echo ":global-test-result: $res" >> $trs_file
+echo ":recheck: $recheck" >> $trs_file
+echo ":copy-in-global-log: $gcopy" >> $trs_file
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC0"
+# time-stamp-end: "; # UTC"
+# End:
diff --git a/test/Makefile.am b/test/Makefile.am
new file mode 100644
index 0000000..4c9c5f6
--- /dev/null
+++ b/test/Makefile.am
@@ -0,0 +1,16 @@
+AM_CPPFLAGS = $(XORG_CFLAGS) \
+	      $(CWARNFLAGS) \
+	      -I$(top_srcdir)/include \
+	      -I$(top_srcdir)/src
+
+tests = test-draglock test-bezier
+
+noinst_PROGRAMS = $(tests)
+
+test_draglock_SOURCES = test-draglock.c
+test_draglock_LDADD = ../src/libdraglock.la
+
+test_bezier_SOURCES = test-bezier.c
+test_bezier_LDADD = ../src/libbezier.la -lm
+
+TESTS = $(tests)
diff --git a/test/Makefile.in b/test/Makefile.in
new file mode 100644
index 0000000..383dec6
--- /dev/null
+++ b/test/Makefile.in
@@ -0,0 +1,1023 @@
+# Makefile.in generated by automake 1.16.2 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2020 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+  if test -z '$(MAKELEVEL)'; then \
+    false; \
+  elif test -n '$(MAKE_HOST)'; then \
+    true; \
+  elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+    true; \
+  else \
+    false; \
+  fi; \
+}
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgdatadir = $(datadir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkglibexecdir = $(libexecdir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
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+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+noinst_PROGRAMS = $(am__EXEEXT_1)
+TESTS = $(am__EXEEXT_1)
+subdir = test
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+DIST_COMMON = $(srcdir)/Makefile.am $(am__DIST_COMMON)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+am__EXEEXT_1 = test-draglock$(EXEEXT) test-bezier$(EXEEXT)
+PROGRAMS = $(noinst_PROGRAMS)
+am_test_bezier_OBJECTS = test-bezier.$(OBJEXT)
+test_bezier_OBJECTS = $(am_test_bezier_OBJECTS)
+test_bezier_DEPENDENCIES = ../src/libbezier.la
+AM_V_lt = $(am__v_lt_@AM_V@)
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+am__v_lt_0 = --silent
+am__v_lt_1 = 
+am_test_draglock_OBJECTS = test-draglock.$(OBJEXT)
+test_draglock_OBJECTS = $(am_test_draglock_OBJECTS)
+test_draglock_DEPENDENCIES = ../src/libdraglock.la
+AM_V_P = $(am__v_P_@AM_V@)
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+am__v_at_0 = @
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+DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
+depcomp = $(SHELL) $(top_srcdir)/depcomp
+am__maybe_remake_depfiles = depfiles
+am__depfiles_remade = ./$(DEPDIR)/test-bezier.Po \
+	./$(DEPDIR)/test-draglock.Po
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+	$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+LTCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) \
+	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+	$(AM_CFLAGS) $(CFLAGS)
+AM_V_CC = $(am__v_CC_@AM_V@)
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+CCLD = $(CC)
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+	$(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+	$(AM_LDFLAGS) $(LDFLAGS) -o $@
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+SOURCES = $(test_bezier_SOURCES) $(test_draglock_SOURCES)
+DIST_SOURCES = $(test_bezier_SOURCES) $(test_draglock_SOURCES)
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
+am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)
+# Read a list of newline-separated strings from the standard input,
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+  { items[$$0] = 1; nonempty = 1; } \
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+'
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+  done | $(am__uniquify_input)`
+ETAGS = etags
+CTAGS = ctags
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+  mgn= red= grn= lgn= blu= brg= std=; \
+  am__color_tests=no
+am__tty_colors = { \
+  $(am__tty_colors_dummy); \
+  if test "X$(AM_COLOR_TESTS)" = Xno; then \
+    am__color_tests=no; \
+  elif test "X$(AM_COLOR_TESTS)" = Xalways; then \
+    am__color_tests=yes; \
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+    am__color_tests=yes; \
+  fi; \
+  if test $$am__color_tests = yes; then \
+    red='[0;31m'; \
+    grn='[0;32m'; \
+    lgn='[1;32m'; \
+    blu='[1;34m'; \
+    mgn='[0;35m'; \
+    brg='[1m'; \
+    std='[m'; \
+  fi; \
+}
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+    $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
+    *) f=$$p;; \
+  esac;
+am__strip_dir = f=`echo $$p | sed -e 's|^.*/||'`;
+am__install_max = 40
+am__nobase_strip_setup = \
+  srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*|]/\\\\&/g'`
+am__nobase_strip = \
+  for p in $$list; do echo "$$p"; done | sed -e "s|$$srcdirstrip/||"
+am__nobase_list = $(am__nobase_strip_setup); \
+  for p in $$list; do echo "$$p $$p"; done | \
+  sed "s| $$srcdirstrip/| |;"' / .*\//!s/ .*/ ./; s,\( .*\)/[^/]*$$,\1,' | \
+  $(AWK) 'BEGIN { files["."] = "" } { files[$$2] = files[$$2] " " $$1; \
+    if (++n[$$2] == $(am__install_max)) \
+      { print $$2, files[$$2]; n[$$2] = 0; files[$$2] = "" } } \
+    END { for (dir in files) print dir, files[dir] }'
+am__base_list = \
+  sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
+  sed '$$!N;$$!N;$$!N;$$!N;s/\n/ /g'
+am__uninstall_files_from_dir = { \
+  test -z "$$files" \
+    || { test ! -d "$$dir" && test ! -f "$$dir" && test ! -r "$$dir"; } \
+    || { echo " ( cd '$$dir' && rm -f" $$files ")"; \
+         $(am__cd) "$$dir" && rm -f $$files; }; \
+  }
+am__recheck_rx = ^[ 	]*:recheck:[ 	]*
+am__global_test_result_rx = ^[ 	]*:global-test-result:[ 	]*
+am__copy_in_global_log_rx = ^[ 	]*:copy-in-global-log:[ 	]*
+# A command that, given a newline-separated list of test names on the
+# standard input, print the name of the tests that are to be re-run
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+am__list_recheck_tests = $(AWK) '{ \
+  recheck = 1; \
+  while ((rc = (getline line < ($$0 ".trs"))) != 0) \
+    { \
+      if (rc < 0) \
+        { \
+          if ((getline line2 < ($$0 ".log")) < 0) \
+	    recheck = 0; \
+          break; \
+        } \
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+        { \
+          recheck = 0; \
+          break; \
+        } \
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+        { \
+          break; \
+        } \
+    }; \
+  if (recheck) \
+    print $$0; \
+  close ($$0 ".trs"); \
+  close ($$0 ".log"); \
+}'
+# A command that, given a newline-separated list of test names on the
+# standard input, create the global log from their .trs and .log files.
+am__create_global_log = $(AWK) ' \
+function fatal(msg) \
+{ \
+  print "fatal: making $@: " msg | "cat >&2"; \
+  exit 1; \
+} \
+function rst_section(header) \
+{ \
+  print header; \
+  len = length(header); \
+  for (i = 1; i <= len; i = i + 1) \
+    printf "="; \
+  printf "\n\n"; \
+} \
+{ \
+  copy_in_global_log = 1; \
+  global_test_result = "RUN"; \
+  while ((rc = (getline line < ($$0 ".trs"))) != 0) \
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+         fatal("failed to read from " $$0 ".trs"); \
+      if (line ~ /$(am__global_test_result_rx)/) \
+        { \
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+        copy_in_global_log = 0; \
+    }; \
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+    { \
+      rst_section(global_test_result ": " $$0); \
+      while ((rc = (getline line < ($$0 ".log"))) != 0) \
+      { \
+        if (rc < 0) \
+          fatal("failed to read from " $$0 ".log"); \
+        print line; \
+      }; \
+      printf "\n"; \
+    }; \
+  close ($$0 ".trs"); \
+  close ($$0 ".log"); \
+}'
+# Restructured Text title.
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+# Default flags passed to test drivers.
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+srcdir=$(srcdir); export srcdir;			\
+case "$@" in						\
+  */*) am__odir=`echo "./$@" | sed 's|/[^/]*$$||'`;;	\
+    *) am__odir=.;; 					\
+esac;							\
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+  || $(MKDIR_P) "$$am__odir" || exit $$?;		\
+if test -f "./$$f"; then dir=./;			\
+elif test -f "$$f"; then dir=;				\
+else dir="$(srcdir)/"; fi;				\
+tst=$$dir$$f; log='$@'; 				\
+if test -n '$(DISABLE_HARD_ERRORS)'; then		\
+  am__enable_hard_errors=no; 				\
+else							\
+  am__enable_hard_errors=yes; 				\
+fi; 							\
+case " $(XFAIL_TESTS) " in				\
+  *[\ \	]$$f[\ \	]* | *[\ \	]$$dir$$f[\ \	]*) \
+    am__expect_failure=yes;;				\
+  *)							\
+    am__expect_failure=no;;				\
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+# A shell command to get the names of the tests scripts with any registered
+# extension removed (i.e., equivalently, the names of the test logs, with
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+# we cannot use something simpler, involving e.g., "$(TEST_LOGS:.log=)",
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+# See also 'test-harness-vpath-rewrite.sh' and 'test-trs-basic.sh'.
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+  bases='$(TEST_LOGS)'; \
+  bases=`for i in $$bases; do echo $$i; done | sed 's/\.log$$//'`; \
+  bases=`echo $$bases`
+RECHECK_LOGS = $(TEST_LOGS)
+AM_RECURSIVE_TARGETS = check recheck
+TEST_SUITE_LOG = test-suite.log
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+	$(TEST_LOG_FLAGS)
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+AM_CPPFLAGS = $(XORG_CFLAGS) \
+	      $(CWARNFLAGS) \
+	      -I$(top_srcdir)/include \
+	      -I$(top_srcdir)/src
+
+tests = test-draglock test-bezier
+test_draglock_SOURCES = test-draglock.c
+test_draglock_LDADD = ../src/libdraglock.la
+test_bezier_SOURCES = test-bezier.c
+test_bezier_LDADD = ../src/libbezier.la -lm
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+
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+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
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+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign test/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign test/Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
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+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
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+clean-noinstPROGRAMS:
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+	echo " rm -f" $$list; \
+	rm -f $$list || exit $$?; \
+	test -n "$(EXEEXT)" || exit 0; \
+	list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
+	echo " rm -f" $$list; \
+	rm -f $$list
+
+test-bezier$(EXEEXT): $(test_bezier_OBJECTS) $(test_bezier_DEPENDENCIES) $(EXTRA_test_bezier_DEPENDENCIES) 
+	@rm -f test-bezier$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_bezier_OBJECTS) $(test_bezier_LDADD) $(LIBS)
+
+test-draglock$(EXEEXT): $(test_draglock_OBJECTS) $(test_draglock_DEPENDENCIES) $(EXTRA_test_draglock_DEPENDENCIES) 
+	@rm -f test-draglock$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_draglock_OBJECTS) $(test_draglock_LDADD) $(LIBS)
+
+mostlyclean-compile:
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+distclean-compile:
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+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/test-bezier.Po@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/test-draglock.Po@am__quote@ # am--include-marker
+
+$(am__depfiles_remade):
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+	$(am__define_uniq_tagged_files); \
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+	  if test $$# -gt 0; then \
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+	      "$$@" $$unique; \
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+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
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+	     $$unique
+
+GTAGS:
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+	  && $(am__cd) $(top_srcdir) \
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+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+# Recover from deleted '.trs' file; this should ensure that
+# "rm -f foo.log; make foo.trs" re-run 'foo.test', and re-create
+# both 'foo.log' and 'foo.trs'.  Break the recipe in two subshells
+# to avoid problems with "make -n".
+.log.trs:
+	rm -f $< $@
+	$(MAKE) $(AM_MAKEFLAGS) $<
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+	if test -n "$$redo_bases"; then \
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+	  redo_results=`for i in $$redo_bases; do echo $$i.trs; done`; \
+	  if $(am__make_dryrun); then :; else \
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+	if $(am__make_dryrun); then :; else \
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+	  test $$st -eq 0 || exit 1; \
+	fi
+	@$(am__sh_e_setup); $(am__tty_colors); $(am__set_TESTS_bases); \
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+	results=`for b in $$bases; do echo $$b.trs; done`; \
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+	error=`grep "^$$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$$br; \
+	result_count () \
+	{ \
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+	      maybe_colorize=yes; \
+	    elif test x"$$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 "$${col}Testsuite summary for $(PACKAGE_STRING)$${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;								\
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+
+check-TESTS: 
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+	@list='$(RECHECK_LOGS:.log=.trs)'; test -z "$$list" || rm -f $$list
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+	@set +e; $(am__set_TESTS_bases); \
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+	log_list=`echo $$log_list`; \
+	$(MAKE) $(AM_MAKEFLAGS) $(TEST_SUITE_LOG) \
+	        am__force_recheck=am--force-recheck \
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+	@p='test-draglock$(EXEEXT)'; \
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+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
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+	@p='test-bezier$(EXEEXT)'; \
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+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
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+	$(am__check_pre) $(TEST_LOG_DRIVER) --test-name "$$f" \
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+	$(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" \
+@am__EXEEXT_TRUE@	--log-file $$b.log --trs-file $$b.trs \
+@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-TESTS
+check: check-am
+all-am: Makefile $(PROGRAMS)
+installdirs:
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(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 $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-noinstPROGRAMS \
+	mostlyclean-am
+
+distclean: distclean-am
+		-rm -f ./$(DEPDIR)/test-bezier.Po
+	-rm -f ./$(DEPDIR)/test-draglock.Po
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+		-rm -f ./$(DEPDIR)/test-bezier.Po
+	-rm -f ./$(DEPDIR)/test-draglock.Po
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+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-generic clean-libtool \
+	clean-noinstPROGRAMS 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
+
+
+# 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/test/test-bezier.c b/test/test-bezier.c
new file mode 100644
index 0000000..5596bc5
--- /dev/null
+++ b/test/test-bezier.c
@@ -0,0 +1,208 @@
+/*
+ * SPDX-License-Identifier: MIT
+ *
+ * Copyright © 2016 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "bezier.h"
+
+#include <assert.h>
+#include <string.h>
+#include <stdio.h>
+
+static inline void
+print_curve(int *bezier, size_t size)
+{
+	/* look at it with gnuplot, "plot 'output-file.txt'" */
+	for (int i = 0; i < size; i++)
+		printf("%d %d\n", i, bezier[i]);
+}
+
+static void
+test_linear(void)
+{
+	const int size = 2048;
+	int bezier[size];
+
+	struct bezier_control_point controls[] = {
+		{ 0.0, 0.0 },
+		{ 0.0, 0.0 },
+		{ 1.0, 1.0 },
+		{ 1.0, 1.0 }
+	};
+
+	cubic_bezier(controls, bezier, size);
+
+	assert(bezier[0] == 0);
+	assert(bezier[size - 1] == size - 1);
+
+	for (int x = 1; x < size; x++)
+		assert(bezier[x] == x);
+}
+
+/* Center point pulled down towards X axis */
+static void
+test_flattened(void)
+{
+	const int size = 2048;
+	int bezier[size];
+
+	struct bezier_control_point controls[] = {
+		{ 0.0, 0.0 },
+		{ 0.1, 0.0 },
+		{ 1.0, 0.9 },
+		{ 1.0, 1.0 }
+	};
+
+	cubic_bezier(controls, bezier, size);
+
+	assert(bezier[0] == 0);
+	assert(bezier[size - 1] == size - 1);
+
+	for (int x = 1; x < size - 1; x++) {
+		assert(bezier[x] < x);
+	}
+}
+
+/* Center point pulled up from X axis */
+static void
+test_raised(void)
+{
+	const int size = 2048;
+	int bezier[size];
+
+	struct bezier_control_point controls[] = {
+		{ 0.0, 0.0 },
+		{ 0.1, 0.4 },
+		{ 0.4, 1.0 },
+		{ 1.0, 1.0 }
+	};
+
+	cubic_bezier(controls, bezier, size);
+
+	assert(bezier[0] == 0);
+	assert(bezier[size - 1] == size - 1);
+
+	for (int x = 1; x < size; x++)
+		assert(bezier[x] >= x);
+
+	for (int x = 10; x < size - 10; x++)
+		assert(bezier[x] > x);
+}
+
+static void
+test_windy(void)
+{
+	const int size = 2048;
+	int bezier[size];
+
+	struct bezier_control_point controls[] = {
+		{ 0.0, 0.0 },
+		{ 0.0, 0.3 },
+		{ 1.0, 0.7 },
+		{ 1.0, 1.0 }
+	};
+
+	cubic_bezier(controls, bezier, size);
+
+	assert(bezier[0] == 0);
+	assert(bezier[size - 1] == size - 1);
+
+	for (int x = 1; x < size/2 - 20; x++)
+		assert(bezier[x] > x);
+
+	for (int x = size/2 + 20; x < size - 1; x++)
+		assert(bezier[x] < x);
+}
+
+static void
+test_nonzero_x_linear(void)
+{
+	const int size = 2048;
+	int bezier[size];
+	int x;
+
+	struct bezier_control_point controls[] = {
+		{ 0.2, 0.0 },
+		{ 0.2, 0.0 },
+		{ 0.8, 1.0 },
+		{ 0.8, 1.0 }
+	};
+
+	cubic_bezier(controls, bezier, size);
+
+	x = 0;
+	do {
+		assert(bezier[x] == 0);
+	} while (++x < size * 0.2 - 1);
+
+	/* ppc64le, ppc64, aarch64 have different math results at -O2,
+	   resulting in one extra zero at the beginning of the array.
+	   some other numbers are different too but within the error
+	   margin (#99992) */
+	if (bezier[x] == 0)
+		x++;
+
+	do {
+		assert(bezier[x] > bezier[x-1]);
+	} while (++x < size * 0.8 - 1);
+
+	do {
+		assert(bezier[x] == size - 1);
+	} while (++x < size);
+}
+
+static void
+test_nonzero_y_linear(void)
+{
+	const int size = 2048;
+	int bezier[size];
+
+	struct bezier_control_point controls[] = {
+		{ 0.0, 0.2 },
+		{ 0.0, 0.2 },
+		{ 1.0, 0.8 },
+		{ 1.0, 0.8 }
+	};
+
+	cubic_bezier(controls, bezier, size);
+
+	assert(bezier[0] == (int)(size * 0.2));
+
+	for (int x = 1; x < size; x++) {
+		assert(bezier[x - 1] <= bezier[x]);
+		assert(bezier[x] >= (int)(size * 0.2));
+	}
+}
+
+int
+main(int argc, char **argv)
+{
+	test_linear();
+	test_flattened();
+	test_raised();
+	test_windy();
+	test_nonzero_x_linear();
+	test_nonzero_y_linear();
+
+	return 0;
+}
diff --git a/test/test-draglock.c b/test/test-draglock.c
new file mode 100644
index 0000000..9561303
--- /dev/null
+++ b/test/test-draglock.c
@@ -0,0 +1,542 @@
+/*
+ * SPDX-License-Identifier: MIT
+ *
+ * Copyright © 2013-2015 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "draglock.h"
+
+#include <assert.h>
+#include <string.h>
+
+static void
+test_config_empty(void)
+{
+	struct draglock dl;
+	int rc;
+
+	rc = draglock_init_from_string(&dl, NULL);
+	assert(dl.mode == DRAGLOCK_DISABLED);
+	assert(rc == 0);
+}
+
+static void
+test_config_invalid(void)
+{
+	struct draglock dl;
+	int rc;
+
+	/* no trailing space */
+	rc = draglock_init_from_string(&dl, "1 ");
+	assert(rc != 0);
+	assert(dl.mode == DRAGLOCK_DISABLED);
+
+	rc = draglock_init_from_string(&dl, "256");
+	assert(rc != 0);
+	assert(dl.mode == DRAGLOCK_DISABLED);
+
+	rc = draglock_init_from_string(&dl, "-1");
+	assert(rc != 0);
+	assert(dl.mode == DRAGLOCK_DISABLED);
+
+	rc = draglock_init_from_string(&dl, "1 2 3");
+	assert(rc != 0);
+	assert(dl.mode == DRAGLOCK_DISABLED);
+
+	rc = draglock_init_from_string(&dl, "0 2");
+	assert(rc != 0);
+	assert(dl.mode == DRAGLOCK_DISABLED);
+
+	rc = draglock_init_from_string(&dl, "0 0");
+	assert(rc != 0);
+	assert(dl.mode == DRAGLOCK_DISABLED);
+}
+
+static void
+test_config_disable(void)
+{
+	struct draglock dl;
+	int rc;
+
+	rc = draglock_init_from_string(&dl, "");
+	assert(rc == 0);
+	assert(dl.mode == DRAGLOCK_DISABLED);
+
+	rc = draglock_init_from_string(&dl, "0");
+	assert(rc == 0);
+	assert(dl.mode == DRAGLOCK_DISABLED);
+}
+
+static void
+test_config_meta_button(void)
+{
+	struct draglock dl;
+	int rc;
+
+	rc = draglock_init_from_string(&dl, "1");
+	assert(rc == 0);
+	assert(dl.mode == DRAGLOCK_META);
+	assert(dl.meta_button == 1);
+
+	rc = draglock_init_from_string(&dl, "2");
+	assert(rc == 0);
+	assert(dl.mode == DRAGLOCK_META);
+	assert(dl.meta_button == 2);
+
+	rc = draglock_init_from_string(&dl, "10");
+	assert(rc == 0);
+	assert(dl.mode == DRAGLOCK_META);
+	assert(dl.meta_button == 10);
+}
+
+static void
+test_config_button_pairs(void)
+{
+	struct draglock dl;
+	int rc;
+
+	rc = draglock_init_from_string(&dl, "1 1");
+	assert(rc == 0);
+	assert(dl.mode == DRAGLOCK_PAIRS);
+
+	rc = draglock_init_from_string(&dl, "1 2 3 4 5 6 7 8");
+	assert(rc == 0);
+	assert(dl.mode == DRAGLOCK_PAIRS);
+
+	rc = draglock_init_from_string(&dl, "1 2 3 4 5 0 7 8");
+	assert(rc == 0);
+	assert(dl.mode == DRAGLOCK_PAIRS);
+
+	/* all disabled */
+	rc = draglock_init_from_string(&dl, "1 0 3 0 5 0 7 0");
+	assert(rc == 0);
+	assert(dl.mode == DRAGLOCK_DISABLED);
+}
+
+static void
+test_config_get(void)
+{
+	struct draglock dl;
+	int rc;
+	const int sz = 32;
+	int map[sz];
+
+	draglock_init_from_string(&dl, "");
+	rc = draglock_get_meta(&dl);
+	assert(rc == 0);
+	rc = draglock_get_pairs(&dl, map, sz);
+	assert(rc == 0);
+
+	draglock_init_from_string(&dl, "8");
+	rc = draglock_get_meta(&dl);
+	assert(rc == 8);
+	rc = draglock_get_pairs(&dl, map, sz);
+	assert(rc == 0);
+
+	draglock_init_from_string(&dl, "1 2 3 4 5 6");
+	rc = draglock_get_meta(&dl);
+	assert(rc == 0);
+	rc = draglock_get_pairs(&dl, map, sz);
+	assert(rc == 5);
+	assert(map[0] == 0);
+	assert(map[1] == 2);
+	assert(map[2] == 0);
+	assert(map[3] == 4);
+	assert(map[4] == 0);
+	assert(map[5] == 6);
+}
+
+static void
+test_set_meta(void)
+{
+	struct draglock dl;
+	int rc;
+
+	draglock_init_from_string(&dl, "");
+
+	rc = draglock_set_meta(&dl, 0);
+	assert(rc == 0);
+	assert(dl.mode == DRAGLOCK_DISABLED);
+
+	rc = draglock_set_meta(&dl, 1);
+	assert(rc == 0);
+	assert(dl.mode == DRAGLOCK_META);
+
+	rc = draglock_set_meta(&dl, -1);
+	assert(rc == 1);
+	rc = draglock_set_meta(&dl, 32);
+	assert(rc == 1);
+}
+
+static void
+test_set_pairs(void)
+{
+	struct draglock dl;
+	int rc;
+	const int sz = 32;
+	int map[sz];
+
+	draglock_init_from_string(&dl, "");
+	memset(map, 0, sizeof(map));
+
+	rc = draglock_set_pairs(&dl, map, sz);
+	assert(rc == 0);
+	assert(dl.mode == DRAGLOCK_DISABLED);
+
+	rc = draglock_set_pairs(&dl, map, 1);
+	assert(rc == 0);
+	assert(dl.mode == DRAGLOCK_DISABLED);
+
+	map[0] = 1;
+	rc = draglock_set_pairs(&dl, map, 1);
+	assert(rc == 1);
+
+	map[0] = 0;
+	map[1] = 2;
+	rc = draglock_set_pairs(&dl, map, sz);
+	assert(rc == 0);
+	assert(dl.mode == DRAGLOCK_PAIRS);
+
+	map[0] = 0;
+	map[1] = 0;
+	map[10] = 8;
+	rc = draglock_set_pairs(&dl, map, sz);
+	assert(rc == 0);
+	assert(dl.mode == DRAGLOCK_PAIRS);
+}
+
+static void
+test_filter_meta_passthrough(void)
+{
+	struct draglock dl;
+	int rc;
+	int button, press;
+	int i;
+
+	rc = draglock_init_from_string(&dl, "10");
+
+	for (i = 0; i < 10; i++) {
+		button = i;
+		press = 1;
+
+		rc = draglock_filter_button(&dl, &button, &press);
+		assert(rc == 0);
+		assert(button == i);
+		assert(press == 1);
+
+		press = 1;
+		rc = draglock_filter_button(&dl, &button, &press);
+		assert(rc == 0);
+		assert(button == i);
+		assert(press == 1);
+	}
+}
+
+static void
+test_filter_meta_click_meta_only(void)
+{
+	struct draglock dl;
+	int rc;
+	int button, press;
+
+	rc = draglock_init_from_string(&dl, "10");
+
+	button = 10;
+	press = 1;
+
+	rc = draglock_filter_button(&dl, &button, &press);
+	assert(rc == 0);
+	assert(button == 0);
+
+	button = 10;
+	press = 0;
+	rc = draglock_filter_button(&dl, &button, &press);
+	assert(rc == 0);
+	assert(button == 0);
+}
+
+static void
+test_filter_meta(void)
+{
+	struct draglock dl;
+	int rc;
+	int button, press;
+	int i;
+
+	rc = draglock_init_from_string(&dl, "10");
+
+	for (i = 1; i < 10; i++) {
+		/* meta down */
+		button = 10;
+		press = 1;
+		rc = draglock_filter_button(&dl, &button, &press);
+		assert(rc == 0);
+		assert(button == 0);
+
+		/* meta up */
+		button = 10;
+		press = 0;
+		rc = draglock_filter_button(&dl, &button, &press);
+		assert(rc == 0);
+		assert(button == 0);
+
+		/* button down -> passthrough */
+		button = i;
+		press = 1;
+		rc = draglock_filter_button(&dl, &button, &press);
+		assert(rc == 0);
+		assert(button == i);
+
+		/* button up -> eaten */
+		button = i;
+		press = 0;
+		rc = draglock_filter_button(&dl, &button, &press);
+		assert(rc == 0);
+		assert(button == 0);
+
+		/* button down -> eaten */
+		button = i;
+		press = 1;
+		rc = draglock_filter_button(&dl, &button, &press);
+		assert(rc == 0);
+		assert(button == 0);
+
+		/* button up -> passthrough */
+		button = i;
+		press = 0;
+		rc = draglock_filter_button(&dl, &button, &press);
+		assert(rc == 0);
+		assert(button == i);
+		assert(press == 0);
+	}
+}
+
+static void
+test_filter_meta_extra_click(void)
+{
+	struct draglock dl;
+	int rc;
+	int button, press;
+	int i;
+
+	rc = draglock_init_from_string(&dl, "10");
+
+	for (i = 1; i < 10; i++) {
+		/* meta down */
+		button = 10;
+		press = 1;
+		rc = draglock_filter_button(&dl, &button, &press);
+		assert(rc == 0);
+		assert(button == 0);
+
+		/* meta up */
+		button = 10;
+		press = 0;
+		rc = draglock_filter_button(&dl, &button, &press);
+		assert(rc == 0);
+		assert(button == 0);
+
+		/* button down -> passthrough */
+		button = i;
+		press = 1;
+		rc = draglock_filter_button(&dl, &button, &press);
+		assert(rc == 0);
+		assert(button == i);
+
+		/* button up -> eaten */
+		button = i;
+		press = 0;
+		rc = draglock_filter_button(&dl, &button, &press);
+		assert(rc == 0);
+		assert(button == 0);
+
+		/* meta down */
+		button = 10;
+		press = 1;
+		rc = draglock_filter_button(&dl, &button, &press);
+		assert(rc == 0);
+		assert(button == 0);
+
+		/* meta up */
+		button = 10;
+		press = 0;
+		rc = draglock_filter_button(&dl, &button, &press);
+		assert(rc == 0);
+		assert(button == 0);
+
+		/* button down -> eaten */
+		button = i;
+		press = 1;
+		rc = draglock_filter_button(&dl, &button, &press);
+		assert(rc == 0);
+		assert(button == 0);
+
+		/* button up -> passthrough */
+		button = i;
+		press = 0;
+		rc = draglock_filter_button(&dl, &button, &press);
+		assert(rc == 0);
+		assert(button == i);
+		assert(press == 0);
+	}
+}
+
+static void
+test_filter_meta_interleaved(void)
+{
+	struct draglock dl;
+	int rc;
+	int button, press;
+	int i;
+
+	rc = draglock_init_from_string(&dl, "10");
+
+	for (i = 1; i < 10; i++) {
+		/* meta down */
+		button = 10;
+		press = 1;
+		rc = draglock_filter_button(&dl, &button, &press);
+		assert(rc == 0);
+		assert(button == 0);
+
+		/* meta up */
+		button = 10;
+		press = 0;
+		rc = draglock_filter_button(&dl, &button, &press);
+		assert(rc == 0);
+		assert(button == 0);
+
+		/* button down -> passthrough */
+		button = i;
+		press = 1;
+		rc = draglock_filter_button(&dl, &button, &press);
+		assert(rc == 0);
+		assert(button == i);
+
+		/* button up -> eaten */
+		button = i;
+		press = 0;
+		rc = draglock_filter_button(&dl, &button, &press);
+		assert(rc == 0);
+		assert(button == 0);
+	}
+
+	for (i = 0; i < 10; i++) {
+		/* button down -> eaten */
+		button = i;
+		press = 1;
+		rc = draglock_filter_button(&dl, &button, &press);
+		assert(rc == 0);
+		assert(button == 0);
+
+		/* button up -> passthrough */
+		button = i;
+		press = 0;
+		rc = draglock_filter_button(&dl, &button, &press);
+		assert(rc == 0);
+		assert(button == i);
+		assert(press == 0);
+	}
+}
+
+static void
+test_filter_pairs(void)
+{
+	struct draglock dl;
+	int rc;
+	int button, press;
+	int i;
+
+	rc = draglock_init_from_string(&dl, "1 11 2 0 3 13 4 0 5 15 6 0 7 17 8 0 9 19");
+
+	for (i = 1; i < 10; i++) {
+		button = i;
+		press = 1;
+
+		rc = draglock_filter_button(&dl, &button, &press);
+		assert(rc == 0);
+		if (i % 2)
+			assert(button == i + 10);
+		else
+			assert(button == i);
+		assert(press == 1);
+
+		button = i;
+		press = 0;
+		rc = draglock_filter_button(&dl, &button, &press);
+		assert(rc == 0);
+		if (i % 2) {
+			assert(button == 0);
+		} else {
+			assert(button == i);
+			assert(press == 0);
+		}
+	}
+
+	for (i = 1; i < 10; i++) {
+		button = i;
+		press = 1;
+
+		rc = draglock_filter_button(&dl, &button, &press);
+		assert(rc == 0);
+		if (i % 2) {
+			assert(button == 0);
+		} else {
+			assert(button == i);
+			assert(press == 1);
+		}
+
+		button = i;
+		press = 0;
+		rc = draglock_filter_button(&dl, &button, &press);
+		assert(rc == 0);
+		if (i % 2)
+			assert(button == i + 10);
+		else
+			assert(button == i);
+		assert(press == 0);
+	}
+}
+
+int
+main(int argc, char **argv)
+{
+	test_config_empty();
+	test_config_invalid();
+	test_config_disable();
+	test_config_meta_button();
+	test_config_button_pairs();
+
+	test_config_get();
+	test_set_meta();
+	test_set_pairs();
+
+	test_filter_meta_passthrough();
+	test_filter_meta_click_meta_only();
+	test_filter_meta();
+	test_filter_meta_extra_click();
+	test_filter_meta_interleaved();
+
+	test_filter_pairs();
+
+	return 0;
+}