comparison: tests/test_allocator.c
tests/test_allocator.c
- changeset 782
- 74d777455e96
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| 781:a786b0a89b37 | 782:74d777455e96 |
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| 1 /* | |
| 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. | |
| 3 * | |
| 4 * Copyright 2023 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/test.h" | |
| 30 | |
| 31 #include "cx/allocator.h" | |
| 32 | |
| 33 CX_TEST(test_allocator_default) { | |
| 34 CX_TEST_DO { | |
| 35 CX_TEST_ASSERT(cxDefaultAllocator->cl != NULL); | |
| 36 } | |
| 37 } | |
| 38 | |
| 39 CX_TEST(test_allocator_default_malloc) { | |
| 40 void *test = cxMalloc(cxDefaultAllocator, 16); | |
| 41 CX_TEST_DO { | |
| 42 CX_TEST_ASSERT(test != NULL); | |
| 43 // we cannot assert sth. but valgrind will detect an error | |
| 44 memcpy(test, "0123456789ABCDEF", 16); | |
| 45 } | |
| 46 free(test); | |
| 47 } | |
| 48 | |
| 49 CX_TEST(test_allocator_default_calloc) { | |
| 50 char *test = cxCalloc(cxDefaultAllocator, 8, 2); | |
| 51 CX_TEST_DO { | |
| 52 CX_TEST_ASSERT(test != NULL); | |
| 53 for (int i = 0; i < 16; i++) { | |
| 54 CX_TEST_ASSERT(test[i] == 0); | |
| 55 } | |
| 56 } | |
| 57 free(test); | |
| 58 } | |
| 59 | |
| 60 CX_TEST(test_allocator_default_realloc) { | |
| 61 char *test = calloc(8, 1); | |
| 62 memcpy(test, "Test", 5); | |
| 63 CX_TEST_DO { | |
| 64 test = cxRealloc(cxDefaultAllocator, test, 16); | |
| 65 CX_TEST_ASSERT(test != NULL); | |
| 66 CX_TEST_ASSERT(0 == strcmp(test, "Test")); | |
| 67 } | |
| 68 free(test); | |
| 69 } | |
| 70 | |
| 71 CX_TEST(test_allocator_default_free) { | |
| 72 void *test = malloc(16); | |
| 73 CX_TEST_DO { | |
| 74 // we cannot assert sth. but valgrind will detect an error | |
| 75 cxFree(cxDefaultAllocator, test); | |
| 76 CX_TEST_ASSERT(true); | |
| 77 } | |
| 78 } | |
| 79 | |
| 80 CX_TEST(test_allocator_reallocate) { | |
| 81 void *test = calloc(8, 1); | |
| 82 memcpy(test, "Test", 5); | |
| 83 CX_TEST_DO { | |
| 84 int ret = cxReallocate(cxDefaultAllocator, &test, 16); | |
| 85 CX_TEST_ASSERT(ret == 0); | |
| 86 CX_TEST_ASSERT(test != NULL); | |
| 87 CX_TEST_ASSERT(0 == strcmp(test, "Test")); | |
| 88 } | |
| 89 free(test); | |
| 90 } | |
| 91 | |
| 92 CX_TEST(test_allocator_reallocate_low_level) { | |
| 93 void *test = calloc(8, 1); | |
| 94 memcpy(test, "Test", 5); | |
| 95 CX_TEST_DO { | |
| 96 int ret = cx_reallocate(&test, 16); | |
| 97 CX_TEST_ASSERT(ret == 0); | |
| 98 CX_TEST_ASSERT(test != NULL); | |
| 99 CX_TEST_ASSERT(0 == strcmp(test, "Test")); | |
| 100 } | |
| 101 free(test); | |
| 102 } | |
| 103 | |
| 104 static void *test_allocator_mock_failing_realloc( | |
| 105 __attribute__((__unused__))void *p, | |
| 106 __attribute__((__unused__))void *d, | |
| 107 __attribute__((__unused__))size_t n | |
| 108 ) { | |
| 109 return NULL; | |
| 110 } | |
| 111 | |
| 112 CX_TEST(test_allocator_reallocate_fails) { | |
| 113 // Mock an allocator that always returns NULL on realloc | |
| 114 cx_allocator_class mock_cl; | |
| 115 mock_cl.realloc = test_allocator_mock_failing_realloc; | |
| 116 CxAllocator mock = {&mock_cl, NULL}; | |
| 117 | |
| 118 void *test = calloc(8, 1); | |
| 119 memcpy(test, "Test", 5); | |
| 120 void *original = test; | |
| 121 CX_TEST_DO { | |
| 122 int ret = cxReallocate(&mock, &test, 16); | |
| 123 // non-zero return code because of the failure | |
| 124 CX_TEST_ASSERT(ret != 0); | |
| 125 // the test pointer was not changed and still points to the same memory | |
| 126 CX_TEST_ASSERT(test == original); | |
| 127 CX_TEST_ASSERT(0 == strcmp(test, "Test")); | |
| 128 } | |
| 129 free(test); | |
| 130 } | |
| 131 | |
| 132 CxTestSuite *cx_test_suite_allocator(void) { | |
| 133 CxTestSuite *suite = cx_test_suite_new("allocator"); | |
| 134 | |
| 135 cx_test_register(suite, test_allocator_default); | |
| 136 cx_test_register(suite, test_allocator_default_malloc); | |
| 137 cx_test_register(suite, test_allocator_default_calloc); | |
| 138 cx_test_register(suite, test_allocator_default_realloc); | |
| 139 cx_test_register(suite, test_allocator_default_free); | |
| 140 cx_test_register(suite, test_allocator_reallocate); | |
| 141 cx_test_register(suite, test_allocator_reallocate_fails); | |
| 142 cx_test_register(suite, test_allocator_reallocate_low_level); | |
| 143 | |
| 144 return suite; | |
| 145 } |
