1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/tests/test_allocator.cpp Tue Feb 07 21:55:37 2023 +0100
1.3 @@ -0,0 +1,96 @@
1.4 +/*
1.5 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
1.6 + *
1.7 + * Copyright 2021 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/allocator.h"
1.33 +#include <gtest/gtest.h>
1.34 +
1.35 +TEST(Allocator, DefaultAllocator) {
1.36 + cx_allocator_class *clazz = cxDefaultAllocator->cl;
1.37 + ASSERT_NE(clazz, nullptr);
1.38 +}
1.39 +
1.40 +TEST(Allocator, DefaultMalloc) {
1.41 + void *test = cxMalloc(cxDefaultAllocator, 16);
1.42 + ASSERT_NE(test, nullptr);
1.43 + free(test);
1.44 +}
1.45 +
1.46 +TEST(Allocator, DefaultRealloc) {
1.47 + void *test = calloc(8, 1);
1.48 + memcpy(test, "Test", 5);
1.49 + test = cxRealloc(cxDefaultAllocator, test, 16);
1.50 + ASSERT_NE(test, nullptr);
1.51 + EXPECT_STREQ(reinterpret_cast<char *>(test), "Test");
1.52 + free(test);
1.53 +}
1.54 +
1.55 +TEST(Allocator, Reallocate) {
1.56 + void *test = calloc(8, 1);
1.57 + memcpy(test, "Test", 5);
1.58 + int ret = cxReallocate(cxDefaultAllocator, &test, 16);
1.59 + EXPECT_EQ(ret, 0);
1.60 + ASSERT_NE(test, nullptr);
1.61 + EXPECT_STREQ(reinterpret_cast<char *>(test), "Test");
1.62 + free(test);
1.63 +}
1.64 +
1.65 +TEST(Allocator, DefaultCalloc) {
1.66 + char *test = reinterpret_cast<char *>(cxCalloc(cxDefaultAllocator, 8, 2));
1.67 + ASSERT_NE(test, nullptr);
1.68 + for (int i = 0; i < 16; i++) ASSERT_EQ(test[i], 0);
1.69 + free(test);
1.70 +}
1.71 +
1.72 +TEST(Allocator, DefaultFree) {
1.73 + void *test = malloc(16);
1.74 + EXPECT_NO_FATAL_FAILURE(
1.75 + cxFree(cxDefaultAllocator, test);
1.76 + );
1.77 +}
1.78 +
1.79 +TEST(Allocator, FailingReallocate) {
1.80 + // Mock an allocator that always returns nullptr on realloc
1.81 + cx_allocator_class mock_cl;
1.82 + mock_cl.realloc = [](
1.83 + [[maybe_unused]]void *p,
1.84 + [[maybe_unused]]void *d,
1.85 + [[maybe_unused]]size_t n
1.86 + ) -> void * { return nullptr; };
1.87 + cx_allocator_s mock{&mock_cl, nullptr};
1.88 +
1.89 + void *test = calloc(8, 1);
1.90 + memcpy(test, "Test", 5);
1.91 + void *original = test;
1.92 + int ret = cxReallocate(&mock, &test, 16);
1.93 + // non-zero return code because of the failure
1.94 + EXPECT_NE(ret, 0);
1.95 + // the test pointer was not changed and still points to the same memory
1.96 + EXPECT_EQ(test, original);
1.97 + EXPECT_STREQ(reinterpret_cast<char *>(test), "Test");
1.98 + free(test);
1.99 +}
