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#!/bin/sh
# 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.
if test "$VERBOSE" = yes; then
set -x
tail --version
fi
tmp=tail-assert.$$
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 $test_failure = 1; then
echo 'failure in testing framework'
exit 1
fi
ok='ok ok ok'
touch a foo
tail --follow=name a foo > err 2>&1 &
tail_pid=$!
# 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=0;;
*) fail=1;;
esac
test $fail = 1 && cat err
exit $fail
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