xref: /freebsd/contrib/bc/tests/bc/timeconst.sh (revision 3332f1b444d4a73238e9f59cca27bfc95fe936bd)
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
53#
54out1="$outputdir/bc_outputs/bc_timeconst.txt"
55out2="$outputdir/bc_outputs/bc_timeconst_results.txt"
56
57outdir=$(dirname "$out1")
58
59# Make sure the directory exists.
60if [ ! -d "$outdir" ]; then
61	mkdir -p "$outdir"
62fi
63
64base=$(basename "$timeconst")
65
66# If the script does not exist, just skip. Running this test is not necessary.
67if [ ! -f "$timeconst" ]; then
68	printf 'Warning: %s does not exist\n' "$timeconst"
69	printf 'Skipping...\n'
70	exit 0
71fi
72
73# I use these, so unset them to make the tests work.
74unset BC_ENV_ARGS
75unset BC_LINE_LENGTH
76unset DC_ENV_ARGS
77unset DC_LINE_LENGTH
78
79printf 'Running %s...' "$base"
80
81# Get a list of numbers. Funny how bc can help with that.
82nums=$(printf 'for (i = 0; i <= 1000; ++i) { i }\n' | bc)
83
84# Run each number through the script.
85for i in $nums; do
86
87	# Run the GNU bc on the test.
88	printf '%s\n' "$i" | bc -q "$timeconst" > "$out1"
89
90	err="$?"
91
92	# If the other bc failed, it's not GNU bc, or this bc.
93	if [ "$err" -ne 0 ]; then
94		printf '\nOther bc is not GNU compatible. Skipping...\n'
95		exit 0
96	fi
97
98	# Run the built bc on the test.
99	printf '%s\n' "$i" | "$bc" "$@" -q "$timeconst" > "$out2"
100
101	diff "$out1" "$out2"
102
103	error="$?"
104
105	# If fail, bail.
106	if [ "$error" -ne 0 ]; then
107		printf '\nFailed on input: %s\n' "$i"
108		exit "$error"
109	fi
110
111done
112
113rm -f "$out1"
114rm -f "$out2"
115
116exec printf 'pass\n'
117