diff options
Diffstat (limited to 'tests/misc/shuf.sh')
| -rwxr-xr-x | tests/misc/shuf.sh | 106 |
1 files changed, 105 insertions, 1 deletions
diff --git a/tests/misc/shuf.sh b/tests/misc/shuf.sh index 9c9526d4..d7251d1d 100755 --- a/tests/misc/shuf.sh +++ b/tests/misc/shuf.sh @@ -1,7 +1,7 @@ #!/bin/sh # Ensure that shuf randomizes its input. -# Copyright (C) 2006-2013 Free Software Foundation, Inc. +# Copyright (C) 2006-2014 Free Software Foundation, Inc. # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by @@ -43,6 +43,10 @@ compare in out1 || { fail=1; echo "not a permutation" 1>&2; } t=$(shuf -e a b c d e | sort | fmt) test "$t" = 'a b c d e' || { fail=1; echo "not a permutation" 1>&2; } +# coreutils-8.22 dumps core. +shuf -er +test $? -eq 1 || fail=1 + # Before coreutils-6.3, this would infloop. # "seq 1860" produces 8193 (8K + 1) bytes of output. seq 1860 | shuf > /dev/null || fail=1 @@ -57,4 +61,104 @@ cmp out exp || { fail=1; echo "missing NUL terminator?" 1>&2; } timeout 10 shuf -i1-$SIZE_MAX -n2 >/dev/null || { fail=1; echo "couldn't get a small subset" >&2; } +# Ensure shuf -n0 doesn't read any input or open specified files +touch unreadable || framework_failure_ +chmod 0 unreadable || framework_failure_ +if ! test -r unreadable; then + shuf -n0 unreadable || fail=1 + shuf -n1 unreadable && fail=1 +fi + +# Multiple -n is accepted, should use the smallest value +shuf -n10 -i0-9 -n3 -n20 > exp || framework_failure_ +c=$(wc -l < exp) || framework_failure_ +test "$c" -eq 3 || { fail=1; echo "Multiple -n failed">&2 ; } + +# Test error conditions + +# -i and -e must not be used together +: | shuf -i0-9 -e A B && + { fail=1; echo "shuf did not detect erroneous -e and -i usage.">&2 ; } +# Test invalid value for -n +: | shuf -nA && + { fail=1; echo "shuf did not detect erroneous -n usage.">&2 ; } +# Test multiple -i +shuf -i0-9 -n10 -i8-90 && + { fail=1; echo "shuf did not detect multiple -i usage.">&2 ; } +# Test invalid range +for ARG in '1' 'A' '1-' '1-A'; do + shuf -i$ARG && + { fail=1; echo "shuf did not detect erroneous -i$ARG usage.">&2 ; } +done + +# multiple -o are forbidden +shuf -i0-9 -o A -o B && + { fail=1; echo "shuf did not detect erroneous multiple -o usage.">&2 ; } +# multiple random-sources are forbidden +shuf -i0-9 --random-source A --random-source B && + { fail=1; echo "shuf did not detect multiple --random-source usage.">&2 ; } + +# Test --repeat option + +# --repeat without count should return an indefinite number of lines +shuf --rep -i 0-10 | head -n 1000 > exp || framework_failure_ +c=$(wc -l < exp) || framework_failure_ +test "$c" -eq 1000 \ + || { fail=1; echo "--repeat does not repeat indefinitely">&2 ; } + +# --repeat can output more values than the input range +shuf --rep -i0-9 -n1000 > exp || framework_failure_ +c=$(wc -l < exp) || framework_failure_ +test "$c" -eq 1000 || { fail=1; echo "--repeat with --count failed">&2 ; } + +# Check output values (this is not bullet-proof, but drawing 1000 values +# between 0 and 9 should produce all values, unless there's a bug in shuf +# or a very poor random source, or extremely bad luck) +c=$(sort -nu exp | paste -s -d ' ') || framework_failure_ +test "$c" = "0 1 2 3 4 5 6 7 8 9" || + { fail=1; echo "--repeat produced bad output">&2 ; } + +# check --repeat with non-zero low value +shuf --rep -i222-233 -n2000 > exp || framework_failure_ +c=$(cat exp | sort -nu | paste -s -d ' ') || framework_failure_ +test "$c" = "222 223 224 225 226 227 228 229 230 231 232 233" || + { fail=1; echo "--repeat produced bad output with non-zero low">&2 ; } + +# --repeat,-i,count=0 should not fail and produce no output +shuf --rep -i0-9 -n0 > exp || framework_failure_ +# file size should be zero (no output from shuf) +test \! -s exp || + { fail=1; echo "--repeat,-i0-9,-n0 produced bad output">&2 ; } + +# --repeat with -e, without count, should repeat indefinitely +shuf --rep -e A B C D | head -n 1000 > exp || framework_failure_ +c=$(wc -l < exp) || framework_failure_ +test "$c" -eq 1000 || + { fail=1; echo "--repeat,-e does not repeat indefinitely">&2 ; } + +# --repeat with STDIN, without count, should repeat indefinitely +printf "A\nB\nC\nD\nE\n" | shuf --rep | head -n 1000 > exp || framework_failure_ +c=$(wc -l < exp) || framework_failure_ +test "$c" -eq 1000 || + { fail=1; echo "--repeat,STDIN does not repeat indefinitely">&2 ; } + +# --repeat with STDIN,count - can return move values than input lines +printf "A\nB\nC\nD\nE\n" | shuf --rep -n2000 > exp || framework_failure_ +c=$(wc -l < exp) || framework_failure_ +test "$c" -eq 2000 || + { fail=1; echo "--repeat,STDIN,count failed">&2 ; } + +# Check output values (this is not bullet-proof, but drawing 2000 values +# between A and E should produce all values, unless there's a bug in shuf +# or a very poor random source, or extremely bad luck) +c=$(sort -u exp | paste -s -d ' ') || framework_failure_ +test "$c" = "A B C D E" || + { fail=1; echo "--repeat,STDIN,count produced bad output">&2 ; } + +# --repeat,stdin,count=0 should not fail and produce no output +printf "A\nB\nC\nD\nE\n" | shuf --rep -n0 > exp || framework_failure_ +# file size should be zero (no output from shuf) +test \! -s exp || + { fail=1; echo "--repeat,STDIN,-n0 produced bad output">&2 ; } + Exit $fail |