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#!/bin/sh
# This test would fail with tail from pre-1.22i textutils.
# Copyright (C) 1999, 2002, 2006-2009 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/>.
if test "$VERBOSE" = yes; then
set -x
tail --version
fi
. $srcdir/test-lib.sh
yes > t &
yes_pid=$!
while :; do
test -s t && break
done
tail -n 1 t &
tail_pid=$!
kill $yes_pid
# This test is racy, and can fail under unusual circumstances.
# On a busy system, "yes" will fail to write
# (and hence fail to be killed by SIGPIPE) in that 1-second interval.
# Then the following kill will succeed and cause this test to fail.
sleep 1
fail=0
kill $tail_pid && fail=1 || :
Exit $fail
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