68 lines
2 KiB
Bash
Executable file
68 lines
2 KiB
Bash
Executable file
#!/bin/sh
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# Test for assertion failure in "test".
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# Copyright (C) 1999-2025 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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# This test fails with tail from textutils-2.0.
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# It would get something like this:
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# tail: tail.c:718: recheck: Assertion 'valid_file_spec (f)' failed.
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# Aborted
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# due to a race condition in which a dev/inode pair is reused.
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. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
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print_ver_ tail
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check_tail_output()
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{
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local delay="$1"
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grep "$tail_re" out ||
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{ sleep $delay; return 1; }
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}
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# Terminate any background tail process
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cleanup_() { kill $pid 2>/dev/null && wait $pid; }
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# Speedup the non inotify case
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fastpoll='-s.1 --max-unchanged-stats=1'
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for mode in '' '---disable-inotify'; do
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rm -f a foo out
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touch a foo || framework_failure_
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tail $mode --follow=name $fastpoll a foo > out 2>&1 & pid=$!
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# Wait up to 12.7s for tail to start.
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echo x > a || framework_failure_
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tail_re='^x$' retry_delay_ check_tail_output .1 7 ||
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{ cat out; fail=1; break; }
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# Wait 12.7s for this diagnostic:
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# tail: foo: No such file or directory
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rm foo || framework_failure_
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tail_re='No such file' retry_delay_ check_tail_output .1 7 ||
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{ cat out; fail=1; break; }
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# Wait up to 12.7s for tail to notice new foo file
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ok='ok ok ok'
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echo "$ok" > foo || framework_failure_
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tail_re="^$ok$" retry_delay_ check_tail_output .1 7 ||
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{ echo "$0: foo: unexpected delay?"; cat out; fail=1; break; }
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cleanup_
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done
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Exit $fail
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