1 files changed, 113 insertions, 0 deletions
diff --git a/tests/misc/nl.sh b/tests/misc/nl.sh
new file mode 100755
index 0000000..a1e9480
--- /dev/null
+++ b/tests/misc/nl.sh
@@ -0,0 +1,113 @@
+#!/bin/sh
+# exercise nl functionality
+
+# Copyright (C) 2002-2023 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 3 of the License, 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/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ nl
+getlimits_
+
+echo a | nl > out || fail=1
+echo b | nl -s%n >> out || fail=1
+echo c | nl -n ln >> out || fail=1
+echo d | nl -n rn >> out || fail=1
+echo e | nl -n rz >> out || fail=1
+echo === >> out
+printf 'a\n\n' | nl > t || fail=1; cat -A t >> out
+cat <<\EOF > exp
+     1	a
+     1%nb
+1     	c
+     1	d
+000001	e
+===
+     1^Ia$
+       $
+EOF
+compare exp out || fail=1
+
+# Ensure numbering reset at each delimiter.
+# coreutils <= v8.25 only reset at a page header.
+printf '%s\n' '\:\:\:' a '\:\:' b '\:' c > in.txt || framework_failure_
+nl -ha -fa in.txt > out.tmp || fail=1
+nl -p -ha -fa in.txt >> out.tmp || fail=1
+sed '/^$/d' < out.tmp > out || framework_failure_
+cat <<\EOF > exp
+     1	a
+     1	b
+     1	c
+     1	a
+     2	b
+     3	c
+EOF
+compare exp out || fail=1
+
+# Ensure we only indicate overflow when needing to output overflowed numbers
+returns_ 1 nl -v$INTMAX_OFLOW /dev/null || fail=1
+printf '%s\n' a \\:\\: b > in.txt || framework_failure_
+nl -v$INTMAX_MAX in.txt > out || fail=1
+cat <<EOF > exp
+$INTMAX_MAX	a
+
+$INTMAX_MAX	b
+EOF
+compare exp out || fail=1
+returns_ 1 nl -p -v$INTMAX_MAX in.txt > out || fail=1
+
+# Test negative iteration
+returns_ 1 nl -i$INTMAX_UFLOW /dev/null || fail=1
+printf '%s\n' a b > in.txt || framework_failure_
+nl -v$INTMAX_MAX -i$INTMAX_MIN in.txt > out || fail=1
+cat <<EOF > exp
+$INTMAX_MAX	a
+    -1	b
+EOF
+compare exp out || fail=1
+printf '%s\n' a b c > in.txt || framework_failure_
+returns_ 1 nl -v$INTMAX_MAX -i$INTMAX_MIN in.txt > out || fail=1
+
+# Test GNU extension to --section-delimiter, of disabling section matching
+printf '%s\n' a '\:\:' c > in.txt || framework_failure_
+nl -d '' in.txt > out || fail=1
+cat <<\EOF > exp
+     1	a
+     2	\:\:
+     3	c
+EOF
+compare exp out || fail=1
+
+# Test GNU extension to --section-delimiter, of supporting strings longer than 2
+printf '%s\n' a foofoo c > in.txt || framework_failure_
+nl -d 'foo' in.txt > out || fail=1
+cat <<EOF > exp
+     1	a
+
+     1	c
+EOF
+compare exp out || fail=1
+
+# Ensure single char delimiters assume a following ':' character (as per POSIX)
+# coreutils <= v8.32 didn't match single char delimiters at all
+printf '%s\n' a x:x: c > in.txt || framework_failure_
+nl -d 'x' in.txt > out || fail=1
+cat <<EOF > exp
+     1	a
+
+     1	c
+EOF
+compare exp out || fail=1
+
+Exit $fail