| #! /bin/sh |
| # |
| # Copyright (c) 2018-2021 Gavin D. Howard and contributors. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are met: |
| # |
| # * Redistributions of source code must retain the above copyright notice, this |
| # list of conditions and the following disclaimer. |
| # |
| # * Redistributions in binary form must reproduce the above copyright notice, |
| # this list of conditions and the following disclaimer in the documentation |
| # and/or other materials provided with the distribution. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
| # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| # POSSIBILITY OF SUCH DAMAGE. |
| # |
| |
| # Tests the timeconst.bc script from the Linux kernel build. |
| # You can find the script at kernel/time/timeconst.bc in any Linux repo. |
| # One such repo is: https://github.com/torvalds/linux |
| |
| script="$0" |
| testdir=$(dirname "$script") |
| |
| # Gets the timeconst script, which could be a command-line argument. |
| if [ "$#" -gt 0 ]; then |
| timeconst="$1" |
| shift |
| else |
| timeconst="$testdir/scripts/timeconst.bc" |
| fi |
| |
| # Gets the executable, which could also be a command-line argument. |
| if [ "$#" -gt 0 ]; then |
| bc="$1" |
| shift |
| else |
| bc="$testdir/../../bin/bc" |
| fi |
| |
| # |
| out1="$testdir/bc_outputs/bc_timeconst.txt" |
| out2="$testdir/bc_outputs/bc_timeconst_results.txt" |
| |
| outdir=$(dirname "$out1") |
| |
| # Make sure the directory exists. |
| if [ ! -d "$outdir" ]; then |
| mkdir -p "$outdir" |
| fi |
| |
| base=$(basename "$timeconst") |
| |
| # If the script does not exist, just skip. Running this test is not necessary. |
| if [ ! -f "$timeconst" ]; then |
| printf 'Warning: %s does not exist\n' "$timeconst" |
| printf 'Skipping...\n' |
| exit 0 |
| fi |
| |
| # I use these, so unset them to make the tests work. |
| unset BC_ENV_ARGS |
| unset BC_LINE_LENGTH |
| unset DC_ENV_ARGS |
| unset DC_LINE_LENGTH |
| |
| printf 'Running %s...' "$base" |
| |
| # Get a list of numbers. Funny how bc can help with that. |
| nums=$(printf 'for (i = 0; i <= 1000; ++i) { i }\n' | bc) |
| |
| # Run each number through the script. |
| for i in $nums; do |
| |
| # Run the GNU bc on the test. |
| printf '%s\n' "$i" | bc -q "$timeconst" > "$out1" |
| |
| err="$?" |
| |
| # If the other bc failed, it's not GNU bc, or this bc. |
| if [ "$err" -ne 0 ]; then |
| printf '\nOther bc is not GNU compatible. Skipping...\n' |
| exit 0 |
| fi |
| |
| # Run the built bc on the test. |
| printf '%s\n' "$i" | "$bc" "$@" -q "$timeconst" > "$out2" |
| |
| diff "$out1" "$out2" |
| |
| error="$?" |
| |
| # If fail, bail. |
| if [ "$error" -ne 0 ]; then |
| printf '\nFailed on input: %s\n' "$i" |
| exit "$error" |
| fi |
| |
| done |
| |
| rm -f "$out1" |
| rm -f "$out2" |
| |
| exec printf 'pass\n' |