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#!/bin/sh
# This variant of `assert' would get a UMR reliably in 2.0.9.
# Due to a race condition in the test, the `assert' script would get
# the UMR on Solaris only some of the time, and not at all on Linux/GNU.
# Copyright (C) 2000, 2006 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
# Not "expensive" per se, but sleeping for so long is annoying.
. $srcdir/../very-expensive
tmp=tail-as2.$$
pwd=`pwd`
trap 'cd "$pwd" && rm -rf $tmp' 0 1 2 3 15
test_failure=0
mkdir $tmp || test_failure=1
cd $tmp || test_failure=1
if test $test_failure = 1; then
echo 'failure in testing framework'
exit 1
fi
ok='ok ok ok'
touch a
tail --follow=name a foo > err 2>&1 &
tail_pid=$!
# Arrange for the tail process to die after 12 seconds.
(sleep 12; kill $tail_pid) &
echo $ok > f
echo sleeping for 7 seconds...
sleep 7
mv f foo
# echo waiting....
wait
case "`cat err`" in
*$ok) fail=0;;
*) fail=1;;
esac
test $fail = 1 && cat err
exit $fail
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