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#!/bin/sh
# Test for assertion failure in "test".
# Copyright (C) 1999-2015 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 <http://www.gnu.org/licenses/>.
# This test fails with tail from textutils-2.0.
# It would get something like this:
# tail: tail.c:718: recheck: Assertion 'valid_file_spec (f)' failed.
# Aborted
# due to a race condition in which a dev/inode pair is reused.
. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
print_ver_ tail
# Not "expensive" per se, but sleeping for so long is annoying.
very_expensive_
ok='ok ok ok'
touch a foo
tail --follow=name a foo > err 2>&1 &
tail_pid=$!
# Arrange for the tail process to die after 12 seconds.
(sleep 12; kill $tail_pid) &
echo sleeping for 7 seconds...
# Give the backgrounded 'tail' a chance to start before removing foo.
# Otherwise, without --retry, tail wouldn't try to open 'foo' again.
sleep 1
rm -f foo
sleep 6
echo $ok > f
mv f foo
# echo waiting....
wait
case "$(cat err)" in
*$ok) ;;
*) fail=1;;
esac
test $fail = 1 && cat err
Exit $fail
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