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3b1ac4b1ed
Problem reported by Vincent Lefevre in: http://bugs.gnu.org/18449 * src/cat.c (main): Allow copying an empty file to itself. * tests/misc/cat-self.sh: New test. * tests/local.mk (all_tests): Add it.
34 lines
1.1 KiB
Bash
Executable File
34 lines
1.1 KiB
Bash
Executable File
#!/bin/sh
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# Check that cat operates correctly when the input is the same as the output.
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# Copyright 2014 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 <http://www.gnu.org/licenses/>.
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. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
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print_ver_ cat
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echo x >out || framework_failure_
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echo x >out1 || framework_failure_
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cat out >>out && fail=1
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compare out out1 || fail=1
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# This example is taken from the POSIX spec for 'cat'.
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echo x >doc || framework_failure_
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echo y >doc.end || framework_failure_
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cat doc doc.end >doc || fail=1
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compare doc doc.end || fail=1
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Exit $fail
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