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