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e2e11119e0
* src/yes.c (main): Even when the internal buffer isn't large enough, output what we've buffered already, and interate over the rest. This improves the performance in the edge case where there are many small arguments that overflow the buffer. * tests/misc/yes.sh: Add a test case for the many small arguments case.
43 lines
1.4 KiB
Bash
Executable File
43 lines
1.4 KiB
Bash
Executable File
#!/bin/sh
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# Validate yes buffer handling
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# Copyright (C) 2015 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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. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
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print_ver_ yes
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# Check various single item sizes, with the most important
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# size being BUFSIZ used for the local buffer to yes(1).
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# Note a \n is added, so actual sizes required internally
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# are 1 more than the size used here.
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for size in 1 1999 4095 4096 8191 8192 16383 16384; do
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printf "%${size}s\n" '' > out.1
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yes "$(printf %${size}s '')" | head -n2 | uniq > out.2
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compare out.1 out.2 || fail=1
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done
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# Check the many small items case,
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# both fitting and overflowing the internal buffer
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if env true $(seq 4000); then
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for i in 100 4000; do
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seq $i | paste -s -d ' ' | sed p > out.1
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yes $(seq $i) | head -n2 > out.2
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compare out.1 out.2 || fail=1
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done
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fi
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Exit $fail
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