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cb121d8f36
* src/shuf.c (main): Move declaration of input_lines to function scope, and initialize to NULL, so we can free it. [lint]: Free all malloc'd memory. * tests/misc/shuf: Also test shuf's -e and -i options.
69 lines
2.1 KiB
Bash
Executable File
69 lines
2.1 KiB
Bash
Executable File
#!/bin/sh
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# Ensure that shuf randomizes its input.
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# Copyright (C) 2006, 2007 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 2 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, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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if test "$VERBOSE" = yes; then
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set -x
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shuf --version
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fi
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pwd=`pwd`
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t0=`echo "$0"|sed 's,.*/,,'`.tmp; tmp=$t0/$$
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trap 'status=$?; cd "$pwd" && chmod -R u+rwx $t0 && rm -rf $t0 && exit $status' 0
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trap '(exit $?); exit $?' 1 2 13 15
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framework_failure=0
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mkdir -p $tmp || framework_failure=1
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cd $tmp || framework_failure=1
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seq 100 > in || framework_failure=1
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if test $framework_failure = 1; then
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echo "$0: failure in testing framework" 1>&2
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(exit 1); exit 1
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fi
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fail=0
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shuf in >out || fail=1
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# Fail if the input is the same as the output.
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# This is a probabilistic test :-)
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# However, the odds of failure are very low: 1 in 100! (~ 1 in 10^158)
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cmp in out > /dev/null && { fail=1; echo "not random?" 1>&2; }
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# Fail if the sorted output is not the same as the input.
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sort -n out > out1
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cmp in out1 || { fail=1; echo "not a permutation" 1>&2; }
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# Exercise shuf's -i option.
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shuf -i 1-100 > out || fail=1
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cmp in out > /dev/null && { fail=1; echo "not random?" 1>&2; }
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sort -n out > out1
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cmp in out1 || { fail=1; echo "not a permutation" 1>&2; }
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# Exercise shuf's -e option.
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t=`shuf -e a b c d e | sort | fmt`
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test "$t" = 'a b c d e' || { fail=1; echo "not a permutation" 1>&2; }
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# Before coreutils-6.3, this would infloop.
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# "seq 1860" produces 8193 (8K + 1) bytes of output.
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seq 1860 | shuf > /dev/null || fail=1
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(exit $fail); exit $fail
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