comparison: tests/test_allocator.cpp
tests/test_allocator.cpp
- changeset 654
- c9d008861178
- parent 653
- e081643aae2a
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| 647:2e6e9d9f2159 | 654:c9d008861178 |
|---|---|
| 1 /* | |
| 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. | |
| 3 * | |
| 4 * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved. | |
| 5 * | |
| 6 * Redistribution and use in source and binary forms, with or without | |
| 7 * modification, are permitted provided that the following conditions are met: | |
| 8 * | |
| 9 * 1. Redistributions of source code must retain the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer. | |
| 11 * | |
| 12 * 2. Redistributions in binary form must reproduce the above copyright | |
| 13 * notice, this list of conditions and the following disclaimer in the | |
| 14 * documentation and/or other materials provided with the distribution. | |
| 15 * | |
| 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE | |
| 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| 26 * POSSIBILITY OF SUCH DAMAGE. | |
| 27 */ | |
| 28 | |
| 29 #include "cx/allocator.h" | |
| 30 #include <gtest/gtest.h> | |
| 31 | |
| 32 TEST(Allocator, DefaultAllocator) { | |
| 33 cx_allocator_class *clazz = cxDefaultAllocator->cl; | |
| 34 ASSERT_NE(clazz, nullptr); | |
| 35 } | |
| 36 | |
| 37 TEST(Allocator, DefaultMalloc) { | |
| 38 void *test = cxMalloc(cxDefaultAllocator, 16); | |
| 39 ASSERT_NE(test, nullptr); | |
| 40 free(test); | |
| 41 } | |
| 42 | |
| 43 TEST(Allocator, DefaultRealloc) { | |
| 44 void *test = calloc(8, 1); | |
| 45 memcpy(test, "Test", 5); | |
| 46 test = cxRealloc(cxDefaultAllocator, test, 16); | |
| 47 ASSERT_NE(test, nullptr); | |
| 48 EXPECT_STREQ(reinterpret_cast<char *>(test), "Test"); | |
| 49 free(test); | |
| 50 } | |
| 51 | |
| 52 TEST(Allocator, Reallocate) { | |
| 53 void *test = calloc(8, 1); | |
| 54 memcpy(test, "Test", 5); | |
| 55 int ret = cxReallocate(cxDefaultAllocator, &test, 16); | |
| 56 EXPECT_EQ(ret, 0); | |
| 57 ASSERT_NE(test, nullptr); | |
| 58 EXPECT_STREQ(reinterpret_cast<char *>(test), "Test"); | |
| 59 free(test); | |
| 60 } | |
| 61 | |
| 62 TEST(Allocator, DefaultCalloc) { | |
| 63 char *test = reinterpret_cast<char *>(cxCalloc(cxDefaultAllocator, 8, 2)); | |
| 64 ASSERT_NE(test, nullptr); | |
| 65 for (int i = 0; i < 16; i++) ASSERT_EQ(test[i], 0); | |
| 66 free(test); | |
| 67 } | |
| 68 | |
| 69 TEST(Allocator, DefaultFree) { | |
| 70 void *test = malloc(16); | |
| 71 EXPECT_NO_FATAL_FAILURE( | |
| 72 cxFree(cxDefaultAllocator, test); | |
| 73 ); | |
| 74 } | |
| 75 | |
| 76 TEST(Allocator, FailingReallocate) { | |
| 77 // Mock an allocator that always returns nullptr on realloc | |
| 78 cx_allocator_class mock_cl; | |
| 79 mock_cl.realloc = []( | |
| 80 [[maybe_unused]]void *p, | |
| 81 [[maybe_unused]]void *d, | |
| 82 [[maybe_unused]]size_t n | |
| 83 ) -> void * { return nullptr; }; | |
| 84 cx_allocator_s mock{&mock_cl, nullptr}; | |
| 85 | |
| 86 void *test = calloc(8, 1); | |
| 87 memcpy(test, "Test", 5); | |
| 88 void *original = test; | |
| 89 int ret = cxReallocate(&mock, &test, 16); | |
| 90 // non-zero return code because of the failure | |
| 91 EXPECT_NE(ret, 0); | |
| 92 // the test pointer was not changed and still points to the same memory | |
| 93 EXPECT_EQ(test, original); | |
| 94 EXPECT_STREQ(reinterpret_cast<char *>(test), "Test"); | |
| 95 free(test); | |
| 96 } |
