1#! /bin/sh 2# 3# Copyright (c) 2018-2021 Gavin D. Howard and contributors. 4# 5# Redistribution and use in source and binary forms, with or without 6# modification, are permitted provided that the following conditions are met: 7# 8# * Redistributions of source code must retain the above copyright notice, this 9# list of conditions and the following disclaimer. 10# 11# * Redistributions in binary form must reproduce the above copyright notice, 12# this list of conditions and the following disclaimer in the documentation 13# and/or other materials provided with the distribution. 14# 15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 16# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 19# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25# POSSIBILITY OF SUCH DAMAGE. 26# 27 28# Tests the timeconst.bc script from the Linux kernel build. 29# You can find the script at kernel/time/timeconst.bc in any Linux repo. 30# One such repo is: https://github.com/torvalds/linux 31 32script="$0" 33testdir=$(dirname "$script") 34 35outputdir=${BC_TEST_OUTPUT_DIR:-$testdir/..} 36 37# Gets the timeconst script, which could be a command-line argument. 38if [ "$#" -gt 0 ]; then 39 timeconst="$1" 40 shift 41else 42 timeconst="$testdir/scripts/timeconst.bc" 43fi 44 45# Gets the executable, which could also be a command-line argument. 46if [ "$#" -gt 0 ]; then 47 bc="$1" 48 shift 49else 50 bc="$testdir/../../bin/bc" 51fi 52 53out1="$outputdir/bc_outputs/bc_timeconst.txt" 54out2="$outputdir/bc_outputs/bc_timeconst_results.txt" 55 56outdir=$(dirname "$out1") 57 58# Make sure the directory exists. 59if [ ! -d "$outdir" ]; then 60 mkdir -p "$outdir" 61fi 62 63base=$(basename "$timeconst") 64 65# If the script does not exist, just skip. Running this test is not necessary. 66if [ ! -f "$timeconst" ]; then 67 printf 'Warning: %s does not exist\n' "$timeconst" 68 printf 'Skipping...\n' 69 exit 0 70fi 71 72# I use these, so unset them to make the tests work. 73unset BC_ENV_ARGS 74unset BC_LINE_LENGTH 75unset DC_ENV_ARGS 76unset DC_LINE_LENGTH 77 78printf 'Running %s...' "$base" 79 80# Get a list of numbers. Funny how bc can help with that. 81nums=$(printf 'for (i = 0; i <= 1000; ++i) { i }\n' | bc) 82 83# Run each number through the script. 84for i in $nums; do 85 86 # Run the GNU bc on the test. 87 printf '%s\n' "$i" | bc -q "$timeconst" > "$out1" 88 89 err="$?" 90 91 # If the other bc failed, it's not GNU bc, or this bc. 92 if [ "$err" -ne 0 ]; then 93 printf '\nOther bc is not GNU compatible. Skipping...\n' 94 exit 0 95 fi 96 97 # Run the built bc on the test. 98 printf '%s\n' "$i" | "$bc" "$@" -q "$timeconst" > "$out2" 99 100 diff "$out1" "$out2" 101 102 error="$?" 103 104 # If fail, bail. 105 if [ "$error" -ne 0 ]; then 106 printf '\nFailed on input: %s\n' "$i" 107 exit "$error" 108 fi 109 110done 111 112rm -f "$out1" 113rm -f "$out2" 114 115exec printf 'pass\n' 116