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13 | 1 | /* |
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2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
13 | 3 | * |
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4 | * Copyright 2014 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. |
13 | 27 | */ |
28 | ||
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29 | #include "stack_tests.h" |
13 | 30 | |
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31 | #define test_ucx_stack_before \ |
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32 | char space[99]; \ |
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33 | UcxStack stack; \ |
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34 | ucx_stack_init(&stack, space, 99) \ |
13 | 35 | |
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36 | UCX_TEST(test_ucx_stack_init) { |
28 | 37 | |
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38 | test_ucx_stack_before; |
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39 | |
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40 | UCX_TEST_BEGIN |
28 | 41 | |
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42 | UCX_TEST_ASSERT( |
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43 | stack.allocator.malloc == (ucx_allocator_malloc) ucx_stack_malloc && |
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44 | stack.allocator.calloc == (ucx_allocator_calloc) ucx_stack_calloc && |
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45 | stack.allocator.realloc == (ucx_allocator_realloc) ucx_stack_realloc && |
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46 | stack.allocator.free == (ucx_allocator_free) ucx_stack_free && |
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47 | stack.allocator.pool == &stack, |
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48 | "allocator not properly set"); |
28 | 49 | |
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50 | UCX_TEST_ASSERT(!stack.top && stack.space == space |
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51 | && stack.size == 99 - 99 % sizeof(void*), |
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52 | "struct fields not properly set"); |
28 | 53 | |
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54 | UCX_TEST_END |
13 | 55 | } |
56 | ||
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57 | UCX_TEST(test_ucx_stack_malloc) { |
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58 | |
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59 | test_ucx_stack_before; |
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60 | |
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61 | const size_t metasize = sizeof(struct ucx_stack_metadata); |
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62 | |
28 | 63 | |
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64 | char* first = (char*) ucx_stack_malloc(&stack, 30); |
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65 | char* second = (char*) ucx_stack_malloc(&stack, 30); |
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66 | char* full = (char*) ucx_stack_malloc(&stack, 30); |
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67 | |
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68 | memcpy(first, "012345678901234567890123456789", 30); |
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69 | memcpy(second, "abcdefghijklmnopqrstuvwxyzABCD", 30); |
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70 | |
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71 | UCX_TEST_BEGIN |
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73 | UCX_TEST_ASSERT(!memcmp(space + metasize, |
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74 | "012345678901234567890123456789", 30), "first element corrupted"); |
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75 | UCX_TEST_ASSERT(!memcmp(space + 32+2*metasize, |
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76 | "abcdefghijklmnopqrstuvwxyzABCD", 30), "first element corrupted"); |
28 | 77 | |
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78 | UCX_TEST_ASSERT(!full, "stack can be overflowed"); |
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79 | UCX_TEST_ASSERT(stack.top == space + 32 + 2*metasize, "wrong top pointer"); |
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80 | |
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81 | if (3*metasize < 32) { |
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82 | UCX_TEST_ASSERT(ucx_stack_avail(&stack) == 32-3*metasize, |
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83 | "wrong remaining available memory"); |
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84 | } else { |
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85 | UCX_TEST_ASSERT(ucx_stack_avail(&stack) == 0, |
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86 | "wrong remaining available memory"); |
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87 | } |
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88 | |
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89 | UCX_TEST_END |
28 | 90 | } |
91 | ||
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92 | UCX_TEST(test_ucx_stack_calloc) { |
28 | 93 | |
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94 | test_ucx_stack_before; |
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95 | |
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96 | char zeros[99]; |
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97 | memset(zeros, 0, 99); |
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98 | memset(space, 32, 99); |
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99 | ucx_stack_calloc(&stack, 4, sizeof(int)); |
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100 | |
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101 | UCX_TEST_BEGIN |
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102 | |
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103 | UCX_TEST_ASSERT(!memcmp(space+sizeof(struct ucx_stack_metadata), |
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104 | zeros, 4*sizeof(int)), "memory not nulled"); |
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105 | UCX_TEST_ASSERT(!memcmp(space+sizeof(struct ucx_stack_metadata) |
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106 | +4*sizeof(int), " ", 10), "too much memory nulled"); |
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107 | |
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108 | UCX_TEST_END |
28 | 109 | } |
110 | ||
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111 | UCX_TEST(test_ucx_stack_free) { |
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112 | |
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113 | test_ucx_stack_before; |
28 | 114 | |
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115 | void *fst = ucx_stack_malloc(&stack, 10); |
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116 | void *snd = ucx_stack_malloc(&stack, 10); |
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117 | void *thrd = ucx_stack_malloc(&stack, 10); |
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118 | |
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119 | UCX_TEST_BEGIN |
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121 | UCX_TEST_ASSERT(stack.top == thrd, "wrong stack"); |
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122 | UCX_TEST_ASSERT(((struct ucx_stack_metadata*) thrd - 1)->prev == snd, |
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123 | "wrong thrd prev pointer before free"); |
28 | 124 | |
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125 | ucx_stack_free(&stack, snd); |
28 | 126 | |
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127 | UCX_TEST_ASSERT(((struct ucx_stack_metadata*) thrd - 1)->prev == fst, |
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128 | "wrong thrd prev pointer after freeing snd"); |
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129 | UCX_TEST_ASSERT(stack.top == thrd, "wrong top after freeing snd"); |
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131 | ucx_stack_free(&stack, thrd); |
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132 | |
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133 | UCX_TEST_ASSERT(stack.top == fst, "wrong top after freeing thrd"); |
28 | 134 | |
135 | UCX_TEST_END | |
136 | } | |
13 | 137 | |
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138 | UCX_TEST(test_ucx_stack_realloc) { |
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139 | |
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140 | test_ucx_stack_before; |
28 | 141 | |
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142 | void *fst = ucx_stack_malloc(&stack, 14); |
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143 | void *snd = ucx_stack_malloc(&stack, 10); |
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144 | |
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145 | UCX_TEST_BEGIN |
28 | 146 | |
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147 | void *nfst = ucx_stack_realloc(&stack, fst, 16); |
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148 | UCX_TEST_ASSERT(nfst == fst, "unnecessary move on reallocation"); |
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149 | UCX_TEST_ASSERT(((struct ucx_stack_metadata*)fst - 1)->size == 16, |
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150 | "wrong size after reallocation"); |
28 | 151 | |
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152 | void *nsnd = ucx_stack_realloc(&stack, snd, 30); |
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153 | UCX_TEST_ASSERT(nsnd == snd, "unnecessary move on top reallocation"); |
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154 | UCX_TEST_ASSERT(ucx_stack_topsize(&stack) == 30, |
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155 | "wrong size after top reallocation"); |
28 | 156 | |
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157 | nsnd = ucx_stack_realloc(&stack, snd, 5); |
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158 | UCX_TEST_ASSERT(nsnd == snd, "unnecessary move on top shrink"); |
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159 | UCX_TEST_ASSERT(ucx_stack_topsize(&stack) == 5, |
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160 | "wrong size after top shrink"); |
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161 | UCX_TEST_ASSERT(ucx_stack_avail(&stack) == |
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162 | 72-3*sizeof(struct ucx_stack_metadata), "wrong size after top shrink"); |
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163 | |
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164 | nfst = ucx_stack_realloc(&stack, fst, 24); |
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165 | UCX_TEST_ASSERT(nfst != fst, "missing move on huge reallocation"); |
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166 | UCX_TEST_ASSERT(stack.top == nfst, "wrong top after huge reallocation"); |
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167 | UCX_TEST_ASSERT(ucx_stack_topsize(&stack) == 24, |
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168 | "wrong size after huge reallocation"); |
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169 | UCX_TEST_ASSERT(!((struct ucx_stack_metadata*)snd - 1)->prev, |
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170 | "element not freed after huge reallocation"); |
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171 | |
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172 | UCX_TEST_END |
28 | 173 | } |
13 | 174 | |
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175 | UCX_TEST(test_ucx_stack_pop) { |
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176 | |
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177 | test_ucx_stack_before; |
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178 | memset(space, 32, 99); |
28 | 179 | |
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180 | void *fst = ucx_stack_malloc(&stack, 10); |
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181 | void *snd = ucx_stack_malloc(&stack, 10); |
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182 | ucx_stack_malloc(&stack, 10); |
28 | 183 | |
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184 | char buf[16]; |
28 | 185 | |
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186 | UCX_TEST_BEGIN |
14 | 187 | |
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188 | memset(buf, '0', 16); |
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189 | ucx_stack_pop(&stack, buf); |
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190 | UCX_TEST_ASSERT(memcmp(buf, " 000000", 16) == 0, |
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191 | "popped wrong content"); |
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192 | UCX_TEST_ASSERT(stack.top == snd, "wrong top after pop"); |
28 | 193 | |
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194 | memset(buf, '0', 16); |
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195 | ucx_stack_popn(&stack, buf, 5); |
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196 | UCX_TEST_ASSERT(memcmp(buf, " 00000000000", 16) == 0, |
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197 | "n-popped wrong content"); |
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198 | UCX_TEST_ASSERT(stack.top == fst, "wrong top after pop"); |
28 | 199 | |
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200 | ucx_stack_pop(&stack, buf); |
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201 | UCX_TEST_ASSERT(!stack.top, "top not NULL after last pop"); |
28 | 202 | |
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203 | memset(buf, '0', 16); |
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204 | ucx_stack_pop(&stack, buf); |
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205 | UCX_TEST_ASSERT(memcmp(buf, "0000000000000000", 16) == 0, |
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206 | "content not unchanged after empty pop"); |
13 | 207 | |
28 | 208 | UCX_TEST_END |
13 | 209 | } |