openrc/src/test/units/is_older_than

#!/bin/sh
# unit test for is_older_than code of baselayout (2008/06/19)
# Author: Matthias Schwarzott <zzam@gentoo.org>

TMPDIR=tmp-"$(basename "$0")"

# Please note that we added this unit test because the function
# should really be called is_newer_than as it's what it's really testing.
# Or more perversly, returning 0 on failure and 1 and success.

# bool is_older_than(reference, files/dirs to check)
#
#   return 0 if any of the files/dirs are newer than
#   the reference file
#
#   EXAMPLE: if is_older_than a.out *.o ; then ...
ref_is_older_than() {
	local x= ref="$1"
	shift

	for x; do
		[ "${x}" -nt "${ref}" ] && return 0
		[ -d "${x}" ] && ref_is_older_than "${ref}" "${x}"/* && return 0
	done
	return 1
}

rm -rf "${TMPDIR}"
mkdir "${TMPDIR}"

do_test() {
	local r1= r2=

	ref_is_older_than "$@"
	r1=$?
	is_older_than "$@"
	r2=$?

	[ -n "${VERBOSE}" ] && echo "reference = $r1  |  OpenRC = $r2"
	[ $r1 = $r2 ]
}

echo_cmd() {
	[ -n "${VERBOSE}" ] && echo "$@"
	"$@"
}

test_it() {
	do_test "${TMPDIR}"/ref "${TMPDIR}"/dir1 "${TMPDIR}"/dir2 || exit 1
}

echo_cmd mkdir -p "${TMPDIR}"/dir1 "${TMPDIR}"/dir2
echo_cmd touch "${TMPDIR}"/dir1/f1 "${TMPDIR}"/dir1/f2 "${TMPDIR}"/dir1/f3 "${TMPDIR}"/dir2/f1 "${TMPDIR}"/dir2/f2 "${TMPDIR}"/dir2/f3
echo_cmd sleep 1
echo_cmd touch "${TMPDIR}"/ref
test_it

echo_cmd sleep 1
echo_cmd touch "${TMPDIR}"/dir1/f2
test_it

echo_cmd sleep 1
echo_cmd touch "${TMPDIR}"/ref
test_it

echo_cmd sleep 1
echo_cmd touch "${TMPDIR}"/dir2/f2
test_it

rm -rf "${TMPDIR}"
exit 0