3 # Copyright (c) 2018-2021 Gavin D. Howard and contributors.
5 # Redistribution and use in source and binary forms, with or without
6 # modification, are permitted provided that the following conditions are met:
8 # * Redistributions of source code must retain the above copyright notice, this
9 # list of conditions and the following disclaimer.
11 # * Redistributions in binary form must reproduce the above copyright notice,
12 # this list of conditions and the following disclaimer in the documentation
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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
33 testdir=$(dirname "$script")
35 outputdir=${BC_TEST_OUTPUT_DIR:-$testdir/..}
37 # Gets the timeconst script, which could be a command-line argument.
38 if [ "$#" -gt 0 ]; then
42 timeconst="$testdir/scripts/timeconst.bc"
45 # Gets the executable, which could also be a command-line argument.
46 if [ "$#" -gt 0 ]; then
50 bc="$testdir/../../bin/bc"
54 out1="$outputdir/bc_outputs/bc_timeconst.txt"
55 out2="$outputdir/bc_outputs/bc_timeconst_results.txt"
57 outdir=$(dirname "$out1")
59 # Make sure the directory exists.
60 if [ ! -d "$outdir" ]; then
64 base=$(basename "$timeconst")
66 # If the script does not exist, just skip. Running this test is not necessary.
67 if [ ! -f "$timeconst" ]; then
68 printf 'Warning: %s does not exist\n' "$timeconst"
69 printf 'Skipping...\n'
73 # I use these, so unset them to make the tests work.
79 printf 'Running %s...' "$base"
81 # Get a list of numbers. Funny how bc can help with that.
82 nums=$(printf 'for (i = 0; i <= 1000; ++i) { i }\n' | bc)
84 # Run each number through the script.
87 # Run the GNU bc on the test.
88 printf '%s\n' "$i" | bc -q "$timeconst" > "$out1"
92 # If the other bc failed, it's not GNU bc, or this bc.
93 if [ "$err" -ne 0 ]; then
94 printf '\nOther bc is not GNU compatible. Skipping...\n'
98 # Run the built bc on the test.
99 printf '%s\n' "$i" | "$bc" "$@" -q "$timeconst" > "$out2"
106 if [ "$error" -ne 0 ]; then
107 printf '\nFailed on input: %s\n' "$i"