1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/test_compare.cpp Wed Dec 07 20:11:44 2022 +0100
1.3 @@ -0,0 +1,127 @@
1.4 +/*
1.5 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
1.6 + *
1.7 + * Copyright 2022 Mike Becker, Olaf Wintermann All rights reserved.
1.8 + *
1.9 + * Redistribution and use in source and binary forms, with or without
1.10 + * modification, are permitted provided that the following conditions are met:
1.11 + *
1.12 + * 1. Redistributions of source code must retain the above copyright
1.13 + * notice, this list of conditions and the following disclaimer.
1.14 + *
1.15 + * 2. Redistributions in binary form must reproduce the above copyright
1.16 + * notice, this list of conditions and the following disclaimer in the
1.17 + * documentation and/or other materials provided with the distribution.
1.18 + *
1.19 + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
1.20 + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.21 + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.22 + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
1.23 + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
1.24 + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
1.25 + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
1.26 + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
1.27 + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
1.28 + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1.29 + * POSSIBILITY OF SUCH DAMAGE.
1.30 + */
1.31 +
1.32 +#include "cx/compare.h"
1.33 +
1.34 +#include <gtest/gtest.h>
1.35 +
1.36 +template<typename T>
1.37 +static void test_compare(
1.38 + int (*fnc)(
1.39 + void const *,
1.40 + void const *
1.41 + )
1.42 +) {
1.43 + auto m = std::numeric_limits<T>::max() / 400;
1.44 + T x, y;
1.45 +
1.46 + x = (std::is_signed_v<T> ? -3 : 3) * m;
1.47 + y = 5 * m;
1.48 + EXPECT_LT(fnc(&x, &y), 0);
1.49 + EXPECT_GT(fnc(&y, &x), 0);
1.50 +
1.51 + x = 120 * m;
1.52 + y = 348 * m;
1.53 + EXPECT_LT(fnc(&x, &y), 0);
1.54 + EXPECT_GT(fnc(&y, &x), 0);
1.55 +
1.56 + if constexpr (std::is_signed_v<T>) {
1.57 + x = -120 * m;
1.58 + y = -348 * m;
1.59 + EXPECT_GT(fnc(&x, &y), 0);
1.60 + EXPECT_LT(fnc(&y, &x), 0);
1.61 + }
1.62 +
1.63 + x = y;
1.64 + EXPECT_EQ(fnc(&x, &y), 0);
1.65 + EXPECT_EQ(fnc(&y, &x), 0);
1.66 +}
1.67 +
1.68 +TEST(Compare, Int) {
1.69 + test_compare<int>(cx_cmp_int);
1.70 +}
1.71 +
1.72 +TEST(Compare, Longint) {
1.73 + test_compare<long int>(cx_cmp_longint);
1.74 +}
1.75 +
1.76 +TEST(Compare, Longlong) {
1.77 + test_compare<long long>(cx_cmp_longlong);
1.78 +}
1.79 +
1.80 +TEST(Compare, Int16) {
1.81 + test_compare<int16_t>(cx_cmp_int16);
1.82 +}
1.83 +
1.84 +TEST(Compare, Int32) {
1.85 + test_compare<int32_t>(cx_cmp_int32);
1.86 +}
1.87 +
1.88 +TEST(Compare, Int64) {
1.89 + test_compare<int64_t>(cx_cmp_int64);
1.90 +}
1.91 +
1.92 +TEST(Compare, Uint) {
1.93 + test_compare<uint>(cx_cmp_uint);
1.94 +}
1.95 +
1.96 +TEST(Compare, Ulongint) {
1.97 + test_compare<unsigned long int>(cx_cmp_ulongint);
1.98 +}
1.99 +
1.100 +TEST(Compare, Ulonglong) {
1.101 + test_compare<unsigned long long>(cx_cmp_ulonglong);
1.102 +}
1.103 +
1.104 +TEST(Compare, Uint16) {
1.105 + test_compare<uint16_t>(cx_cmp_uint16);
1.106 +}
1.107 +
1.108 +TEST(Compare, Uint32) {
1.109 + test_compare<uint32_t>(cx_cmp_uint32);
1.110 +}
1.111 +
1.112 +TEST(Compare, Uint64) {
1.113 + test_compare<uint64_t>(cx_cmp_uint64);
1.114 +}
1.115 +
1.116 +TEST(Compare, Float) {
1.117 + test_compare<float>(cx_cmp_float);
1.118 +}
1.119 +
1.120 +TEST(Compare, Double) {
1.121 + test_compare<double>(cx_cmp_double);
1.122 +}
1.123 +
1.124 +TEST(Compare, IntPtr) {
1.125 + test_compare<intptr_t>(cx_cmp_intptr);
1.126 +}
1.127 +
1.128 +TEST(Compare, UintPtr) {
1.129 + test_compare<uintptr_t>(cx_cmp_uintptr);
1.130 +}
