tests/test_allocator.c

Wed, 25 Dec 2024 19:33:04 +0100

author
Mike Becker <universe@uap-core.de>
date
Wed, 25 Dec 2024 19:33:04 +0100
changeset 1054
fb1076ead56f
parent 1040
1ecf4dbbc60c
permissions
-rw-r--r--

add implementation for creating new json values

relates to #527

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1 /*
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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3 *
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4 * Copyright 2023 Mike Becker, Olaf Wintermann All rights reserved.
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5 *
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6 * Redistribution and use in source and binary forms, with or without
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7 * modification, are permitted provided that the following conditions are met:
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8 *
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9 * 1. Redistributions of source code must retain the above copyright
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10 * notice, this list of conditions and the following disclaimer.
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11 *
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12 * 2. Redistributions in binary form must reproduce the above copyright
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13 * notice, this list of conditions and the following disclaimer in the
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14 * documentation and/or other materials provided with the distribution.
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15 *
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16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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26 * POSSIBILITY OF SUCH DAMAGE.
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27 */
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28
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29 #include "cx/test.h"
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30
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31 #if __GNUC__
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32 // we want to perform overflow tests, but we don't want warnings about them
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33 #define __alloc_size__(...) // NOLINT(*-reserved-identifier)
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34 #endif
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35
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36 #include "cx/allocator.h"
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37 #include <errno.h>
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38
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39 CX_TEST(test_allocator_default) {
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40 CX_TEST_DO {
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41 CX_TEST_ASSERT(cxDefaultAllocator->cl != NULL);
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42 }
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43 }
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44
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45 CX_TEST(test_allocator_default_malloc) {
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46 void *test = cxMalloc(cxDefaultAllocator, 16);
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47 CX_TEST_DO {
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48 CX_TEST_ASSERT(test != NULL);
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49 // we cannot assert sth. but valgrind will detect an error
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50 memcpy(test, "0123456789ABCDEF", 16);
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51 }
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52 free(test);
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53 }
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54
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55 CX_TEST(test_allocator_default_calloc) {
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56 char *test = cxCalloc(cxDefaultAllocator, 8, 2);
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57 CX_TEST_DO {
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58 CX_TEST_ASSERT(test != NULL);
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59 for (int i = 0; i < 16; i++) {
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60 CX_TEST_ASSERT(test[i] == 0);
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61 }
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62 }
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63 free(test);
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64 }
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65
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66 CX_TEST(test_allocator_default_realloc) {
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67 char *test = calloc(8, 1);
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68 memcpy(test, "Test", 5);
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69 CX_TEST_DO {
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70 test = cxRealloc(cxDefaultAllocator, test, 16);
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71 CX_TEST_ASSERT(test != NULL);
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72 CX_TEST_ASSERT(0 == strcmp(test, "Test"));
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73 }
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74 free(test);
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75 }
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76
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77 CX_TEST(test_allocator_default_reallocarray) {
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78 char *test = calloc(8, 1);
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79 memcpy(test, "Test", 5);
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80 CX_TEST_DO {
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81 test = cxReallocArray(cxDefaultAllocator, test, 16, 2);
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82 CX_TEST_ASSERT(test != NULL);
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83 CX_TEST_ASSERT(0 == strcmp(test, "Test"));
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84 }
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85 free(test);
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86 }
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87
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88 CX_TEST(test_allocator_default_reallocarray_overflow) {
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89 char *test = calloc(8, 1);
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90 memcpy(test, "Test", 5);
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91 CX_TEST_DO {
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92 void *fail = cxReallocArray(cxDefaultAllocator, test, SIZE_MAX/2, 4);
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93 CX_TEST_ASSERT(errno == EOVERFLOW);
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94 CX_TEST_ASSERT(fail == NULL);
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95 CX_TEST_ASSERT(0 == strcmp(test, "Test"));
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96 }
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97 free(test);
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98 }
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99
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100 CX_TEST(test_allocator_default_free) {
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101 void *test = cxMalloc(cxDefaultAllocator, 16);
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102 CX_TEST_DO {
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103 // we cannot assert sth. but valgrind will detect an error
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104 cxFree(cxDefaultAllocator, test);
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105 CX_TEST_ASSERT(true);
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106 }
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107 }
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108
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109 CX_TEST(test_allocator_reallocate) {
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110 char *test = calloc(8, 1);
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111 memcpy(test, "Test", 5);
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112 CX_TEST_DO {
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113 int ret = cxReallocate(cxDefaultAllocator, &test, 16);
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114 CX_TEST_ASSERT(ret == 0);
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115 CX_TEST_ASSERT(test != NULL);
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116 CX_TEST_ASSERT(0 == strcmp(test, "Test"));
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117 }
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118 free(test);
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119 }
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120
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121 CX_TEST(test_allocator_reallocate_low_level) {
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122 void *test = calloc(8, 1);
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123 memcpy(test, "Test", 5);
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124 CX_TEST_DO {
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125 int ret = cx_reallocate(&test, 16);
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126 CX_TEST_ASSERT(ret == 0);
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127 CX_TEST_ASSERT(test != NULL);
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128 CX_TEST_ASSERT(0 == strcmp(test, "Test"));
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129 }
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130 free(test);
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131 }
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132
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133 CX_TEST(test_allocator_reallocatearray) {
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134 char *test = calloc(8, 1);
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135 memcpy(test, "Test", 5);
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136 CX_TEST_DO {
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137 int ret = cxReallocateArray(cxDefaultAllocator, &test, 16, 2);
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138 CX_TEST_ASSERT(ret == 0);
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139 CX_TEST_ASSERT(test != NULL);
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140 CX_TEST_ASSERT(0 == strcmp(test, "Test"));
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141 }
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142 free(test);
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143 }
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144
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145 CX_TEST(test_allocator_reallocatearray_overflow) {
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146 char *test = calloc(8, 1);
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147 memcpy(test, "Test", 5);
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148 CX_TEST_DO {
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149 int ret = cxReallocateArray(cxDefaultAllocator, &test, SIZE_MAX/2, 4);
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150 CX_TEST_ASSERT(ret != 0);
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151 CX_TEST_ASSERT(errno == EOVERFLOW);
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152 CX_TEST_ASSERT(test != NULL);
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153 CX_TEST_ASSERT(0 == strcmp(test, "Test"));
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154 }
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155 free(test);
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156 }
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157
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158 CX_TEST(test_allocator_reallocatearray_low_level) {
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159 char *test = calloc(8, 1);
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160 memcpy(test, "Test", 5);
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161 CX_TEST_DO {
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162 int ret = cx_reallocatearray(&test, 16, 2);
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163 CX_TEST_ASSERT(ret == 0);
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164 CX_TEST_ASSERT(test != NULL);
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165 CX_TEST_ASSERT(0 == strcmp(test, "Test"));
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166 }
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167 free(test);
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168 }
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169
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170 CX_TEST(test_allocator_reallocatearray_low_level_overflow) {
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171 char *test = calloc(8, 1);
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172 memcpy(test, "Test", 5);
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173 CX_TEST_DO {
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174 int ret = cx_reallocatearray(&test, SIZE_MAX/2, 4);
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175 CX_TEST_ASSERT(ret != 0);
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176 CX_TEST_ASSERT(errno == EOVERFLOW);
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177 CX_TEST_ASSERT(test != NULL);
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178 CX_TEST_ASSERT(0 == strcmp(test, "Test"));
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179 }
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180 free(test);
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181 }
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182
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183 static void *test_allocator_mock_failing_realloc(
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184 cx_attr_unused void *p,
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185 cx_attr_unused void *d,
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186 cx_attr_unused size_t n
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187 ) {
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188 return NULL;
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189 }
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190
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191 CX_TEST(test_allocator_reallocate_fails) {
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192 // Mock an allocator that always returns NULL on realloc
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193 cx_allocator_class mock_cl;
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194 mock_cl.realloc = test_allocator_mock_failing_realloc;
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195 CxAllocator mock = {&mock_cl, NULL};
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196
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197 void *test = calloc(8, 1);
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198 memcpy(test, "Test", 5);
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199 void *original = test;
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200 CX_TEST_DO {
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201 int ret = cxReallocate(&mock, &test, 16);
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202 // non-zero return code because of the failure
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203 CX_TEST_ASSERT(ret != 0);
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204 // the test pointer was not changed and still points to the same memory
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205 CX_TEST_ASSERT(test == original);
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206 CX_TEST_ASSERT(0 == strcmp(test, "Test"));
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207 }
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208 free(test);
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209 }
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210
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211 CxTestSuite *cx_test_suite_allocator(void) {
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212 CxTestSuite *suite = cx_test_suite_new("allocator");
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213
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214 cx_test_register(suite, test_allocator_default);
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215 cx_test_register(suite, test_allocator_default_malloc);
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216 cx_test_register(suite, test_allocator_default_calloc);
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217 cx_test_register(suite, test_allocator_default_realloc);
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218 cx_test_register(suite, test_allocator_default_reallocarray);
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219 cx_test_register(suite, test_allocator_default_reallocarray_overflow);
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220 cx_test_register(suite, test_allocator_default_free);
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221 cx_test_register(suite, test_allocator_reallocate);
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222 cx_test_register(suite, test_allocator_reallocate_fails);
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223 cx_test_register(suite, test_allocator_reallocate_low_level);
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224 cx_test_register(suite, test_allocator_reallocatearray);
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225 cx_test_register(suite, test_allocator_reallocatearray_overflow);
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226 cx_test_register(suite, test_allocator_reallocatearray_low_level);
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227 cx_test_register(suite, test_allocator_reallocatearray_low_level_overflow);
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228
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229 return suite;
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230 }

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