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 "$script") 34 35# Gets the timeconst script, which could be a command-line argument. 36if [ "$#" -gt 0 ]; then 37 timeconst="$1" 38 shift 39else 40 timeconst="$testdir/scripts/timeconst.bc" 41fi 42 43# Gets the executable, which could also be a command-line argument. 44if [ "$#" -gt 0 ]; then 45 bc="$1" 46 shift 47else 48 bc="$testdir/../../bin/bc" 49fi 50 51# 52out1="$testdir/bc_outputs/bc_timeconst.txt" 53out2="$testdir/bc_outputs/bc_timeconst_results.txt" 54 55outdir=$(dirname "$out1") 56 57# Make sure the directory exists. 58if [ ! -d "$outdir" ]; then 59 mkdir -p "$outdir" 60fi 61 62base=$(basename "$timeconst") 63 64# If the script does not exist, just skip. Running this test is not necessary. 65if [ ! -f "$timeconst" ]; then 66 printf 'Warning: %s does not exist\n' "$timeconst" 67 printf 'Skipping...\n' 68 exit 0 69fi 70 71# I use these, so unset them to make the tests work. 72unset BC_ENV_ARGS 73unset BC_LINE_LENGTH 74unset DC_ENV_ARGS 75unset DC_LINE_LENGTH 76 77printf 'Running %s...' "$base" 78 79# Get a list of numbers. Funny how bc can help with that. 80nums=$(printf 'for (i = 0; i <= 1000; ++i) { i }\n' | bc) 81 82# Run each number through the script. 83for i in $nums; do 84 85 # Run the GNU bc on the test. 86 printf '%s\n' "$i" | bc -q "$timeconst" > "$out1" 87 88 err="$?" 89 90 # If the other bc failed, it's not GNU bc, or this bc. 91 if [ "$err" -ne 0 ]; then 92 printf '\nOther bc is not GNU compatible. Skipping...\n' 93 exit 0 94 fi 95 96 # Run the built bc on the test. 97 printf '%s\n' "$i" | "$bc" "$@" -q "$timeconst" > "$out2" 98 99 diff "$out1" "$out2" 100 101 error="$?" 102 103 # If fail, bail. 104 if [ "$error" -ne 0 ]; then 105 printf '\nFailed on input: %s\n' "$i" 106 exit "$error" 107 fi 108 109done 110 111rm -f "$out1" 112rm -f "$out2" 113 114exec printf 'pass\n' 115