tests/test_buffer.cpp

Sun, 09 Jul 2023 12:12:29 +0200

author
Mike Becker <universe@uap-core.de>
date
Sun, 09 Jul 2023 12:12:29 +0200
changeset 748
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parent 683
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child 761
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permissions
-rw-r--r--

add release date for UCX 3.0

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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 2021 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/buffer.h"
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30
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31 #include <gtest/gtest.h>
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32 #include "util_allocator.h"
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33
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34 class BufferFixture : public ::testing::Test {
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35 protected:
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36 void SetUp() override {
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37 cxBufferInit(&buf, nullptr, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
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38 buf.size = 6;
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39 buf.pos = 3;
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40 }
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41
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42 void TearDown() override {
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43 cxBufferDestroy(&buf);
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44 }
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45
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46 CxBuffer buf{};
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47 };
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48
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49 static void expect_default_flush_config(CxBuffer *buf) {
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50 EXPECT_EQ(buf->flush_blkmax, 0);
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51 EXPECT_EQ(buf->flush_blksize, 4096);
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52 EXPECT_EQ(buf->flush_threshold, SIZE_MAX);
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53 EXPECT_EQ(buf->flush_func, nullptr);
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54 EXPECT_EQ(buf->flush_target, nullptr);
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55 }
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56
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57 TEST(BufferInit, WrapSpace) {
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58 CxTestingAllocator alloc;
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59 CxBuffer buf;
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60 void *space = cxMalloc(&alloc, 16);
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61 cxBufferInit(&buf, space, 16, &alloc, CX_BUFFER_DEFAULT);
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62 expect_default_flush_config(&buf);
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63 EXPECT_EQ(buf.space, space);
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64 EXPECT_EQ(buf.flags & CX_BUFFER_AUTO_EXTEND, 0);
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65 EXPECT_EQ(buf.flags & CX_BUFFER_FREE_CONTENTS, 0);
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66 EXPECT_EQ(buf.pos, 0);
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67 EXPECT_EQ(buf.size, 0);
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68 EXPECT_EQ(buf.capacity, 16);
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69 EXPECT_EQ(buf.allocator, &alloc);
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70 cxBufferDestroy(&buf);
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71 EXPECT_FALSE(alloc.verify());
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72 cxFree(&alloc, space);
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73 EXPECT_TRUE(alloc.verify());
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74 }
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75
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76 TEST(BufferInit, WrapSpaceAutoExtend) {
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77 CxTestingAllocator alloc;
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78 CxBuffer buf;
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79 void *space = cxMalloc(&alloc, 16);
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80 cxBufferInit(&buf, space, 16, &alloc, CX_BUFFER_AUTO_EXTEND);
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81 expect_default_flush_config(&buf);
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82 EXPECT_EQ(buf.space, space);
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83 EXPECT_EQ(buf.flags & CX_BUFFER_AUTO_EXTEND, CX_BUFFER_AUTO_EXTEND);
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84 EXPECT_EQ(buf.flags & CX_BUFFER_FREE_CONTENTS, 0);
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85 EXPECT_EQ(buf.pos, 0);
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86 EXPECT_EQ(buf.size, 0);
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87 EXPECT_EQ(buf.capacity, 16);
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88 EXPECT_EQ(buf.allocator, &alloc);
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89 cxBufferDestroy(&buf);
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90 EXPECT_FALSE(alloc.verify());
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91 cxFree(&alloc, space);
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92 EXPECT_TRUE(alloc.verify());
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93 }
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94
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95 TEST(BufferInit, WrapSpaceAutoFree) {
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96 CxTestingAllocator alloc;
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97 CxBuffer buf;
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98 void *space = cxMalloc(&alloc, 16);
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99 cxBufferInit(&buf, space, 16, &alloc, CX_BUFFER_FREE_CONTENTS);
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100 expect_default_flush_config(&buf);
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101 EXPECT_EQ(buf.space, space);
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102 EXPECT_EQ(buf.flags & CX_BUFFER_AUTO_EXTEND, 0);
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103 EXPECT_EQ(buf.flags & CX_BUFFER_FREE_CONTENTS, CX_BUFFER_FREE_CONTENTS);
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104 EXPECT_EQ(buf.pos, 0);
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105 EXPECT_EQ(buf.size, 0);
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106 EXPECT_EQ(buf.capacity, 16);
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107 EXPECT_EQ(buf.allocator, &alloc);
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108 EXPECT_FALSE(alloc.verify());
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109 cxBufferDestroy(&buf);
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110 EXPECT_TRUE(alloc.verify());
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111 }
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112
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113 TEST(BufferInit, FreshSpace) {
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114 CxTestingAllocator alloc;
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115 CxBuffer buf;
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116 cxBufferInit(&buf, nullptr, 8, &alloc, CX_BUFFER_DEFAULT);
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117 expect_default_flush_config(&buf);
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118 EXPECT_NE(buf.space, nullptr);
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119 EXPECT_EQ(buf.flags & CX_BUFFER_AUTO_EXTEND, 0);
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120 EXPECT_EQ(buf.flags & CX_BUFFER_FREE_CONTENTS, CX_BUFFER_FREE_CONTENTS);
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121 EXPECT_EQ(buf.pos, 0);
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122 EXPECT_EQ(buf.size, 0);
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123 EXPECT_EQ(buf.capacity, 8);
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124 EXPECT_EQ(buf.allocator, &alloc);
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125 EXPECT_FALSE(alloc.verify()); // space is still allocated
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126 cxBufferDestroy(&buf);
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127 EXPECT_TRUE(alloc.verify());
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128 }
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129
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130 TEST(BufferInit, OnHeap) {
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131 CxTestingAllocator alloc;
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132 CxBuffer *buf;
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133 void *space = cxMalloc(&alloc, 16);
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134 buf = cxBufferCreate(space, 16, &alloc, CX_BUFFER_FREE_CONTENTS);
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135 EXPECT_NE(buf, nullptr);
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136 expect_default_flush_config(buf);
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137 EXPECT_EQ(buf->space, space);
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138 EXPECT_EQ(buf->flags & CX_BUFFER_AUTO_EXTEND, 0);
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139 EXPECT_EQ(buf->flags & CX_BUFFER_FREE_CONTENTS, CX_BUFFER_FREE_CONTENTS);
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140 EXPECT_EQ(buf->pos, 0);
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141 EXPECT_EQ(buf->size, 0);
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142 EXPECT_EQ(buf->capacity, 16);
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143 EXPECT_EQ(buf->allocator, &alloc);
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144 cxBufferFree(buf);
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145 EXPECT_TRUE(alloc.verify());
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146 }
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147
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148 class BufferShiftFixture : public ::testing::Test {
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149 protected:
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150 void SetUp() override {
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151 ASSERT_TRUE(alloc.verify());
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152 cxBufferInit(&buf, nullptr, 16, &alloc, CX_BUFFER_DEFAULT);
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153 memcpy(buf.space, "test____________", 16);
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154 buf.capacity = 8; // purposely pretend that the buffer has less capacity s.t. we can test beyond the range
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155 buf.pos = 4;
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156 buf.size = 4;
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157 }
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158
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159 void TearDown() override {
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160 cxBufferDestroy(&buf);
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161 EXPECT_TRUE(alloc.verify());
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162 }
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163
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164 CxTestingAllocator alloc;
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165 CxBuffer buf{};
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166 };
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167
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168 class BufferShiftLeft : public BufferShiftFixture {
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169 };
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170
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171 TEST_F(BufferShiftLeft, Zero) {
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172 ASSERT_EQ(buf.pos, 4);
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173 ASSERT_EQ(buf.size, 4);
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174 int ret = cxBufferShiftLeft(&buf, 0);
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175 EXPECT_EQ(ret, 0);
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176 EXPECT_EQ(buf.pos, 4);
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177 EXPECT_EQ(buf.size, 4);
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178 EXPECT_TRUE(memcmp(buf.space, "test________", 8) == 0);
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179 }
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180
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181 TEST_F(BufferShiftLeft, ZeroOffsetInterface) {
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182 ASSERT_EQ(buf.pos, 4);
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183 ASSERT_EQ(buf.size, 4);
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184 int ret = cxBufferShift(&buf, -0);
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185 EXPECT_EQ(ret, 0);
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186 EXPECT_EQ(buf.pos, 4);
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187 EXPECT_EQ(buf.size, 4);
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188 EXPECT_TRUE(memcmp(buf.space, "test________", 8) == 0);
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189 }
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190
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191 TEST_F(BufferShiftLeft, Standard) {
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192 ASSERT_EQ(buf.pos, 4);
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193 ASSERT_EQ(buf.size, 4);
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194 int ret = cxBufferShiftLeft(&buf, 2);
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195 EXPECT_EQ(ret, 0);
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196 EXPECT_EQ(buf.pos, 2);
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197 EXPECT_EQ(buf.size, 2);
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198 EXPECT_TRUE(memcmp(buf.space, "stst________", 8) == 0);
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199 }
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200
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201 TEST_F(BufferShiftLeft, Overshift) {
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202 ASSERT_LT(buf.pos, 6);
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203 ASSERT_LT(buf.size, 6);
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204 int ret = cxBufferShiftLeft(&buf, 6);
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205 EXPECT_EQ(ret, 0);
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206 EXPECT_EQ(buf.pos, 0);
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207 EXPECT_EQ(buf.size, 0);
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208 EXPECT_TRUE(memcmp(buf.space, "test________", 8) == 0);
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209 }
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210
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211 TEST_F(BufferShiftLeft, OvershiftPosOnly) {
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212 buf.pos = 2;
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213 ASSERT_EQ(buf.size, 4);
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214 int ret = cxBufferShiftLeft(&buf, 3);
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215 EXPECT_EQ(ret, 0);
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216 EXPECT_EQ(buf.pos, 0);
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217 EXPECT_EQ(buf.size, 1);
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218 EXPECT_TRUE(memcmp(buf.space, "test________", 8) == 0);
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219 }
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220
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221 TEST_F(BufferShiftLeft, OffsetInterface) {
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222 buf.pos = 3;
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223 ASSERT_EQ(buf.size, 4);
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224 int ret = cxBufferShift(&buf, -2);
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225 EXPECT_EQ(ret, 0);
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226 EXPECT_EQ(buf.pos, 1);
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227 EXPECT_EQ(buf.size, 2);
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228 EXPECT_TRUE(memcmp(buf.space, "stst________", 8) == 0);
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229 }
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230
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231 class BufferShiftRight : public BufferShiftFixture {
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232 };
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233
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234 TEST_F(BufferShiftRight, Zero) {
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235 ASSERT_EQ(buf.pos, 4);
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236 ASSERT_EQ(buf.size, 4);
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237 int ret = cxBufferShiftRight(&buf, 0);
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238 EXPECT_EQ(ret, 0);
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239 EXPECT_EQ(buf.pos, 4);
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240 EXPECT_EQ(buf.size, 4);
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241 EXPECT_TRUE(memcmp(buf.space, "test________", 8) == 0);
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242 }
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243
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244 TEST_F(BufferShiftRight, ZeroOffsetInterface) {
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245 ASSERT_EQ(buf.pos, 4);
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246 ASSERT_EQ(buf.size, 4);
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247 int ret = cxBufferShift(&buf, +0);
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248 EXPECT_EQ(ret, 0);
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249 EXPECT_EQ(buf.pos, 4);
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250 EXPECT_EQ(buf.size, 4);
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251 EXPECT_TRUE(memcmp(buf.space, "test________", 8) == 0);
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252 }
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253
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254 TEST_F(BufferShiftRight, Standard) {
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255 ASSERT_EQ(buf.pos, 4);
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256 ASSERT_EQ(buf.size, 4);
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257 int ret = cxBufferShiftRight(&buf, 3);
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258 EXPECT_EQ(ret, 0);
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259 EXPECT_EQ(buf.pos, 7);
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260 EXPECT_EQ(buf.size, 7);
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261 EXPECT_TRUE(memcmp(buf.space, "testest_____", 8) == 0);
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262 }
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263
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264 TEST_F(BufferShiftRight, OvershiftDiscard) {
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265 ASSERT_EQ(buf.pos, 4);
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266 ASSERT_EQ(buf.size, 4);
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267 ASSERT_EQ(buf.capacity, 8);
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268 int ret = cxBufferShiftRight(&buf, 6);
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269 EXPECT_EQ(ret, 0);
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270 EXPECT_EQ(buf.pos, 8);
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271 EXPECT_EQ(buf.size, 8);
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272 EXPECT_EQ(buf.capacity, 8);
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273 EXPECT_TRUE(memcmp(buf.space, "test__te____", 8) == 0);
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274 }
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275
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276 TEST_F(BufferShiftRight, OvershiftExtend) {
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277 ASSERT_EQ(buf.pos, 4);
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278 ASSERT_EQ(buf.size, 4);
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279 ASSERT_EQ(buf.capacity, 8);
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280 buf.flags |= CX_BUFFER_AUTO_EXTEND;
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281 int ret = cxBufferShiftRight(&buf, 6);
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282 EXPECT_EQ(ret, 0);
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283 EXPECT_EQ(buf.pos, 10);
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284 EXPECT_EQ(buf.size, 10);
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285 EXPECT_GE(buf.capacity, 10);
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286 EXPECT_TRUE(memcmp(buf.space, "test__test__", 8) == 0);
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287 }
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288
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289 TEST_F(BufferShiftRight, OffsetInterface) {
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290 buf.pos = 3;
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291 ASSERT_EQ(buf.size, 4);
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292 int ret = cxBufferShift(&buf, 2);
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293 EXPECT_EQ(ret, 0);
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294 EXPECT_EQ(buf.pos, 5);
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295 EXPECT_EQ(buf.size, 6);
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296 EXPECT_TRUE(memcmp(buf.space, "tetest______", 8) == 0);
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297 }
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298
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299 TEST(BufferMinimumCapacity, Sufficient) {
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300 CxTestingAllocator alloc;
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301 auto space = cxMalloc(&alloc, 8);
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302 CxBuffer buf;
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303 cxBufferInit(&buf, space, 8, &alloc, CX_BUFFER_FREE_CONTENTS);
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304 memcpy(space, "Testing", 8);
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305 buf.size = 8;
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306 cxBufferMinimumCapacity(&buf, 6);
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307 EXPECT_EQ(buf.capacity, 8);
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308 EXPECT_EQ(buf.size, 8);
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309 EXPECT_TRUE(memcmp(buf.space, "Testing", 8) == 0);
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310 cxBufferDestroy(&buf);
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311 EXPECT_TRUE(alloc.verify());
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312 }
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313
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314 TEST(BufferMinimumCapacity, Extend) {
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315 CxTestingAllocator alloc;
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316 auto space = cxMalloc(&alloc, 8);
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317 CxBuffer buf;
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318 cxBufferInit(&buf, space, 8, &alloc, CX_BUFFER_FREE_CONTENTS); // NO auto extend!
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319 memcpy(space, "Testing", 8);
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320 buf.size = 8;
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321 cxBufferMinimumCapacity(&buf, 16);
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322 EXPECT_EQ(buf.capacity, 16);
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323 EXPECT_EQ(buf.size, 8);
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324 EXPECT_TRUE(memcmp(buf.space, "Testing", 8) == 0);
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325 cxBufferDestroy(&buf);
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326 EXPECT_TRUE(alloc.verify());
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327 }
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328
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329 TEST(BufferClear, Test) {
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330 char space[16];
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331 strcpy(space, "clear test");
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332 CxBuffer buf;
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333 cxBufferInit(&buf, space, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
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334 ASSERT_EQ(buf.size, 0);
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335 // only clear the used part of the buffer
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336 cxBufferClear(&buf);
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337 EXPECT_EQ(memcmp(space, "clear test", 10), 0);
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338 buf.size = 5;
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339 buf.pos = 3;
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340 cxBufferClear(&buf);
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341 EXPECT_EQ(memcmp(space, "\0\0\0\0\0 test", 10), 0);
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342 EXPECT_EQ(buf.size, 0);
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343 EXPECT_EQ(buf.pos, 0);
538
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344 cxBufferDestroy(&buf);
536
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345 }
538
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346
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347 class BufferWrite : public ::testing::Test {
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348 protected:
545
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349 CxBuffer buf{}, target{};
538
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350
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351 void SetUp() override {
545
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352 cxBufferInit(&target, nullptr, 16, cxDefaultAllocator, CX_BUFFER_AUTO_EXTEND);
538
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353 cxBufferInit(&buf, nullptr, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
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354 buf.capacity = 8; // artificially reduce capacity to check OOB writes
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355 memset(buf.space, 0, 16);
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356 memcpy(buf.space, "prep", 4);
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357 buf.size = buf.pos = 4;
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358 }
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359
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360 void TearDown() override {
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361 cxBufferDestroy(&buf);
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362 cxBufferDestroy(&target);
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363 }
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364
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365 void enableFlushing() {
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366 buf.flush_target = &target;
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367 buf.flush_func = reinterpret_cast<cx_write_func>(cxBufferWrite);
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368 buf.flush_blkmax = 1;
538
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369 }
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370 };
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371
567
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372 static size_t mock_write_limited_rate(
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373 void const *ptr,
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374 size_t size,
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375 __attribute__((unused)) size_t nitems,
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376 CxBuffer *buffer
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377 ) {
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378 // simulate limited target drain capacity
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379 static bool full = false;
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380 if (full) {
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381 full = false;
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382 return 0;
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383 } else {
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384 full = true;
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385 return cxBufferWrite(ptr, size, nitems > 2 ? 2 : nitems, buffer);
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386 }
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387 }
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388
538
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389 TEST_F(BufferWrite, SizeOneFit) {
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390 const char *data = "test";
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391 ASSERT_EQ(buf.capacity, 8);
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392 ASSERT_EQ(buf.pos, 4);
541
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393 ASSERT_EQ(buf.size, 4);
538
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394 size_t written = cxBufferWrite(data, 1, 4, &buf);
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395 EXPECT_EQ(written, 4);
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396 EXPECT_EQ(buf.size, 8);
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diff changeset
397 EXPECT_EQ(buf.pos, 8);
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398 EXPECT_EQ(buf.capacity, 8);
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399 EXPECT_EQ(memcmp(buf.space, "preptest", 8), 0);
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400 }
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401
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402 TEST_F(BufferWrite, SizeOneDiscard) {
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diff changeset
403 const char *data = "testing";
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diff changeset
404 ASSERT_EQ(buf.capacity, 8);
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diff changeset
405 ASSERT_EQ(buf.pos, 4);
541
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diff changeset
406 ASSERT_EQ(buf.size, 4);
538
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diff changeset
407 size_t written = cxBufferWrite(data, 1, 7, &buf);
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diff changeset
408 EXPECT_EQ(written, 4);
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diff changeset
409 EXPECT_EQ(buf.size, 8);
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diff changeset
410 EXPECT_EQ(buf.pos, 8);
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411 EXPECT_EQ(buf.capacity, 8);
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diff changeset
412 EXPECT_EQ(memcmp(buf.space, "preptest\0", 9), 0);
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diff changeset
413 }
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diff changeset
414
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diff changeset
415 TEST_F(BufferWrite, SizeOneExtend) {
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diff changeset
416 buf.flags |= CX_BUFFER_AUTO_EXTEND;
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diff changeset
417 const char *data = "testing";
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diff changeset
418 ASSERT_EQ(buf.capacity, 8);
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diff changeset
419 ASSERT_EQ(buf.pos, 4);
541
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diff changeset
420 ASSERT_EQ(buf.size, 4);
538
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diff changeset
421 size_t written = cxBufferWrite(data, 1, 7, &buf);
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diff changeset
422 EXPECT_EQ(written, 7);
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diff changeset
423 EXPECT_EQ(buf.size, 11);
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diff changeset
424 EXPECT_EQ(buf.pos, 11);
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diff changeset
425 EXPECT_GE(buf.capacity, 11);
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diff changeset
426 EXPECT_EQ(memcmp(buf.space, "preptesting", 11), 0);
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diff changeset
427 }
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diff changeset
428
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diff changeset
429 TEST_F(BufferWrite, MultibyteFit) {
541
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diff changeset
430 const char *data = "test";
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diff changeset
431 ASSERT_EQ(buf.capacity, 8);
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diff changeset
432 ASSERT_EQ(buf.pos, 4);
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diff changeset
433 ASSERT_EQ(buf.size, 4);
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diff changeset
434 size_t written = cxBufferWrite(data, 2, 2, &buf);
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diff changeset
435 EXPECT_EQ(written, 2);
67e078518935 #170 complete write tests for status quo
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diff changeset
436 EXPECT_EQ(buf.size, 8);
67e078518935 #170 complete write tests for status quo
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diff changeset
437 EXPECT_EQ(buf.pos, 8);
67e078518935 #170 complete write tests for status quo
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diff changeset
438 EXPECT_EQ(buf.capacity, 8);
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diff changeset
439 EXPECT_EQ(memcmp(buf.space, "preptest", 8), 0);
538
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diff changeset
440 }
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diff changeset
441
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diff changeset
442 TEST_F(BufferWrite, MultibyteDiscard) {
542
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diff changeset
443 const char *data = "testing";
541
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diff changeset
444 ASSERT_EQ(buf.capacity, 8);
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diff changeset
445 ASSERT_EQ(buf.size, 4);
67e078518935 #170 complete write tests for status quo
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diff changeset
446 buf.pos = 3;
542
45bcfd152f85 #170 no bug never existed
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diff changeset
447 size_t written = cxBufferWrite(data, 2, 4, &buf);
538
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diff changeset
448 // remember: whole elements are discarded if they do not fit
541
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diff changeset
449 EXPECT_EQ(written, 2);
67e078518935 #170 complete write tests for status quo
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diff changeset
450 EXPECT_EQ(buf.size, 7);
67e078518935 #170 complete write tests for status quo
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diff changeset
451 EXPECT_EQ(buf.pos, 7);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
452 EXPECT_EQ(buf.capacity, 8);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
453 EXPECT_EQ(memcmp(buf.space, "pretest\0", 8), 0);
538
2cfbcbe86a7c #170 first basic write tests
Mike Becker <universe@uap-core.de>
parents: 536
diff changeset
454 }
2cfbcbe86a7c #170 first basic write tests
Mike Becker <universe@uap-core.de>
parents: 536
diff changeset
455
2cfbcbe86a7c #170 first basic write tests
Mike Becker <universe@uap-core.de>
parents: 536
diff changeset
456 TEST_F(BufferWrite, MultibyteExtend) {
541
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
457 buf.flags |= CX_BUFFER_AUTO_EXTEND;
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
458 const char *data = "tester";
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
459 ASSERT_EQ(buf.capacity, 8);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
460 ASSERT_EQ(buf.size, 4);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
461 buf.pos = 3;
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
462 size_t written = cxBufferWrite(data, 2, 3, &buf);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
463 // remember: whole elements are discarded if they do not fit
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
464 EXPECT_EQ(written, 3);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
465 EXPECT_EQ(buf.size, 9);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
466 EXPECT_EQ(buf.pos, 9);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
467 EXPECT_GE(buf.capacity, 9);
566
d3100c987a39 fix two tests reading one byte too much
Mike Becker <universe@uap-core.de>
parents: 565
diff changeset
468 EXPECT_EQ(memcmp(buf.space, "pretester", 9), 0);
538
2cfbcbe86a7c #170 first basic write tests
Mike Becker <universe@uap-core.de>
parents: 536
diff changeset
469 }
2cfbcbe86a7c #170 first basic write tests
Mike Becker <universe@uap-core.de>
parents: 536
diff changeset
470
2cfbcbe86a7c #170 first basic write tests
Mike Becker <universe@uap-core.de>
parents: 536
diff changeset
471 TEST_F(BufferWrite, PutcWrapperFit) {
541
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
472 ASSERT_EQ(buf.capacity, 8);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
473 ASSERT_EQ(buf.pos, 4);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
474 ASSERT_EQ(buf.size, 4);
565
d756746ea94f fix putc tests to make more sense of the bitwise or
Mike Becker <universe@uap-core.de>
parents: 548
diff changeset
475 int c = cxBufferPut(&buf, 0x200 | 'a');
541
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
476 EXPECT_EQ(c, 'a');
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
477 EXPECT_EQ(buf.size, 5);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
478 EXPECT_EQ(buf.pos, 5);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
479 EXPECT_EQ(buf.capacity, 8);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
480 EXPECT_EQ(memcmp(buf.space, "prepa\0", 6), 0);
538
2cfbcbe86a7c #170 first basic write tests
Mike Becker <universe@uap-core.de>
parents: 536
diff changeset
481 }
2cfbcbe86a7c #170 first basic write tests
Mike Becker <universe@uap-core.de>
parents: 536
diff changeset
482
2cfbcbe86a7c #170 first basic write tests
Mike Becker <universe@uap-core.de>
parents: 536
diff changeset
483 TEST_F(BufferWrite, PutcWrapperDiscard) {
541
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
484 ASSERT_EQ(buf.capacity, 8);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
485 ASSERT_EQ(buf.size, 4);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
486 buf.pos = 8;
565
d756746ea94f fix putc tests to make more sense of the bitwise or
Mike Becker <universe@uap-core.de>
parents: 548
diff changeset
487 int c = cxBufferPut(&buf, 0x200 | 'a');
541
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
488 EXPECT_EQ(c, EOF);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
489 EXPECT_EQ(buf.size, 4);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
490 EXPECT_EQ(buf.pos, 8);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
491 EXPECT_EQ(buf.capacity, 8);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
492 EXPECT_EQ(memcmp(buf.space, "prep\0\0\0\0\0", 9), 0);
538
2cfbcbe86a7c #170 first basic write tests
Mike Becker <universe@uap-core.de>
parents: 536
diff changeset
493 }
2cfbcbe86a7c #170 first basic write tests
Mike Becker <universe@uap-core.de>
parents: 536
diff changeset
494
2cfbcbe86a7c #170 first basic write tests
Mike Becker <universe@uap-core.de>
parents: 536
diff changeset
495 TEST_F(BufferWrite, PutcWrapperExtend) {
541
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
496 buf.flags |= CX_BUFFER_AUTO_EXTEND;
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
497 ASSERT_EQ(buf.capacity, 8);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
498 ASSERT_EQ(buf.size, 4);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
499 buf.pos = 8;
565
d756746ea94f fix putc tests to make more sense of the bitwise or
Mike Becker <universe@uap-core.de>
parents: 548
diff changeset
500 int c = cxBufferPut(&buf, 0x200 | 'a');
541
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
501 EXPECT_EQ(c, 'a');
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
502 EXPECT_EQ(buf.size, 9);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
503 EXPECT_EQ(buf.pos, 9);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
504 EXPECT_GE(buf.capacity, 9);
566
d3100c987a39 fix two tests reading one byte too much
Mike Becker <universe@uap-core.de>
parents: 565
diff changeset
505 EXPECT_EQ(memcmp(buf.space, "prep\0\0\0\0a", 9), 0);
538
2cfbcbe86a7c #170 first basic write tests
Mike Becker <universe@uap-core.de>
parents: 536
diff changeset
506 }
2cfbcbe86a7c #170 first basic write tests
Mike Becker <universe@uap-core.de>
parents: 536
diff changeset
507
2cfbcbe86a7c #170 first basic write tests
Mike Becker <universe@uap-core.de>
parents: 536
diff changeset
508 TEST_F(BufferWrite, PutStringWrapperFit) {
541
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
509 const char *data = "test";
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
510 ASSERT_EQ(buf.capacity, 8);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
511 ASSERT_EQ(buf.pos, 4);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
512 ASSERT_EQ(buf.size, 4);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
513 size_t written = cxBufferPutString(&buf, data);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
514 EXPECT_EQ(written, 4);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
515 EXPECT_EQ(buf.size, 8);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
516 EXPECT_EQ(buf.pos, 8);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
517 EXPECT_EQ(buf.capacity, 8);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
518 EXPECT_EQ(memcmp(buf.space, "preptest", 8), 0);
538
2cfbcbe86a7c #170 first basic write tests
Mike Becker <universe@uap-core.de>
parents: 536
diff changeset
519 }
2cfbcbe86a7c #170 first basic write tests
Mike Becker <universe@uap-core.de>
parents: 536
diff changeset
520
2cfbcbe86a7c #170 first basic write tests
Mike Becker <universe@uap-core.de>
parents: 536
diff changeset
521 TEST_F(BufferWrite, PutStringWrapperDiscard) {
541
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
522 const char *data = "testing";
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
523 ASSERT_EQ(buf.capacity, 8);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
524 ASSERT_EQ(buf.pos, 4);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
525 ASSERT_EQ(buf.size, 4);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
526 size_t written = cxBufferPutString(&buf, data);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
527 EXPECT_EQ(written, 4);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
528 EXPECT_EQ(buf.size, 8);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
529 EXPECT_EQ(buf.pos, 8);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
530 EXPECT_EQ(buf.capacity, 8);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
531 EXPECT_EQ(memcmp(buf.space, "preptest\0", 9), 0);
538
2cfbcbe86a7c #170 first basic write tests
Mike Becker <universe@uap-core.de>
parents: 536
diff changeset
532 }
2cfbcbe86a7c #170 first basic write tests
Mike Becker <universe@uap-core.de>
parents: 536
diff changeset
533
2cfbcbe86a7c #170 first basic write tests
Mike Becker <universe@uap-core.de>
parents: 536
diff changeset
534 TEST_F(BufferWrite, PutStringWrapperExtend) {
541
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
535 buf.flags |= CX_BUFFER_AUTO_EXTEND;
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
536 const char *data = "testing";
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
537 ASSERT_EQ(buf.capacity, 8);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
538 ASSERT_EQ(buf.pos, 4);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
539 ASSERT_EQ(buf.size, 4);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
540 size_t written = cxBufferPutString(&buf, data);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
541 EXPECT_EQ(written, 7);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
542 EXPECT_EQ(buf.size, 11);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
543 EXPECT_EQ(buf.pos, 11);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
544 EXPECT_GE(buf.capacity, 11);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
545 EXPECT_EQ(memcmp(buf.space, "preptesting", 11), 0);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
546 }
538
2cfbcbe86a7c #170 first basic write tests
Mike Becker <universe@uap-core.de>
parents: 536
diff changeset
547
541
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
548 TEST_F(BufferWrite, MultOverflow) {
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
549 const char *data = "testing";
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
550 ASSERT_EQ(buf.capacity, 8);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
551 ASSERT_EQ(buf.pos, 4);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
552 ASSERT_EQ(buf.size, 4);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
553 size_t written = cxBufferWrite(data, 8, SIZE_MAX / 4, &buf);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
554 EXPECT_EQ(written, 0);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
555 EXPECT_EQ(buf.capacity, 8);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
556 EXPECT_EQ(buf.pos, 4);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
557 EXPECT_EQ(buf.size, 4);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
558 EXPECT_EQ(memcmp(buf.space, "prep\0", 5), 0);
538
2cfbcbe86a7c #170 first basic write tests
Mike Becker <universe@uap-core.de>
parents: 536
diff changeset
559 }
541
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
560
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
561 TEST_F(BufferWrite, MaxCapaOverflow) {
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
562 buf.flags |= CX_BUFFER_AUTO_EXTEND;
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
563 const char *data = "testing";
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
564 ASSERT_EQ(buf.capacity, 8);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
565 ASSERT_EQ(buf.pos, 4);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
566 ASSERT_EQ(buf.size, 4);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
567 size_t written = cxBufferWrite(data, 1, SIZE_MAX - 2, &buf);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
568 EXPECT_EQ(written, 0);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
569 EXPECT_EQ(buf.capacity, 8);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
570 EXPECT_EQ(buf.pos, 4);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
571 EXPECT_EQ(buf.size, 4);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
572 EXPECT_EQ(memcmp(buf.space, "prep\0", 5), 0);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
573 }
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
574
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
575 TEST_F(BufferWrite, OnlyOverwrite) {
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
576 buf.flags |= CX_BUFFER_AUTO_EXTEND;
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
577 ASSERT_EQ(buf.capacity, 8);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
578 memcpy(buf.space, "preptest", 8);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
579 buf.pos = 3;
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
580 buf.size = 8;
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
581 size_t written = cxBufferWrite("XXX", 2, 2, &buf);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
582 EXPECT_EQ(written, 2);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
583 EXPECT_EQ(buf.capacity, 8);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
584 EXPECT_EQ(buf.size, 8);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
585 EXPECT_EQ(buf.pos, 7);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
586 EXPECT_EQ(memcmp(buf.space, "preXXX\0t", 8), 0);
67e078518935 #170 complete write tests for status quo
Mike Becker <universe@uap-core.de>
parents: 539
diff changeset
587 }
545
3700ac4bd9a3 #184 #170 first basic flush test
Mike Becker <universe@uap-core.de>
parents: 542
diff changeset
588
3700ac4bd9a3 #184 #170 first basic flush test
Mike Becker <universe@uap-core.de>
parents: 542
diff changeset
589 TEST_F(BufferWrite, FlushAtCapacity) {
3700ac4bd9a3 #184 #170 first basic flush test
Mike Becker <universe@uap-core.de>
parents: 542
diff changeset
590 enableFlushing();
3700ac4bd9a3 #184 #170 first basic flush test
Mike Becker <universe@uap-core.de>
parents: 542
diff changeset
591 ASSERT_EQ(buf.capacity, 8);
3700ac4bd9a3 #184 #170 first basic flush test
Mike Becker <universe@uap-core.de>
parents: 542
diff changeset
592 ASSERT_EQ(buf.pos, 4);
3700ac4bd9a3 #184 #170 first basic flush test
Mike Becker <universe@uap-core.de>
parents: 542
diff changeset
593 size_t written = cxBufferWrite("foo", 1, 3, &buf);
3700ac4bd9a3 #184 #170 first basic flush test
Mike Becker <universe@uap-core.de>
parents: 542
diff changeset
594 EXPECT_EQ(written, 3);
3700ac4bd9a3 #184 #170 first basic flush test
Mike Becker <universe@uap-core.de>
parents: 542
diff changeset
595 ASSERT_EQ(buf.pos, 7);
3700ac4bd9a3 #184 #170 first basic flush test
Mike Becker <universe@uap-core.de>
parents: 542
diff changeset
596 ASSERT_EQ(buf.size, 7);
3700ac4bd9a3 #184 #170 first basic flush test
Mike Becker <universe@uap-core.de>
parents: 542
diff changeset
597 ASSERT_EQ(target.pos, 0);
3700ac4bd9a3 #184 #170 first basic flush test
Mike Becker <universe@uap-core.de>
parents: 542
diff changeset
598 ASSERT_EQ(target.size, 0);
3700ac4bd9a3 #184 #170 first basic flush test
Mike Becker <universe@uap-core.de>
parents: 542
diff changeset
599 written = cxBufferWrite("hello", 1, 5, &buf);
3700ac4bd9a3 #184 #170 first basic flush test
Mike Becker <universe@uap-core.de>
parents: 542
diff changeset
600 EXPECT_EQ(written, 5);
3700ac4bd9a3 #184 #170 first basic flush test
Mike Becker <universe@uap-core.de>
parents: 542
diff changeset
601 EXPECT_EQ(buf.pos, 0);
3700ac4bd9a3 #184 #170 first basic flush test
Mike Becker <universe@uap-core.de>
parents: 542
diff changeset
602 EXPECT_EQ(buf.size, 0);
3700ac4bd9a3 #184 #170 first basic flush test
Mike Becker <universe@uap-core.de>
parents: 542
diff changeset
603 EXPECT_EQ(buf.capacity, 8);
3700ac4bd9a3 #184 #170 first basic flush test
Mike Becker <universe@uap-core.de>
parents: 542
diff changeset
604 EXPECT_EQ(target.pos, 12);
3700ac4bd9a3 #184 #170 first basic flush test
Mike Becker <universe@uap-core.de>
parents: 542
diff changeset
605 ASSERT_EQ(target.size, 12);
3700ac4bd9a3 #184 #170 first basic flush test
Mike Becker <universe@uap-core.de>
parents: 542
diff changeset
606 EXPECT_EQ(memcmp(target.space, "prepfoohello", 12), 0);
3700ac4bd9a3 #184 #170 first basic flush test
Mike Becker <universe@uap-core.de>
parents: 542
diff changeset
607 }
546
900795d59d03 #184 #170 flush at threshold test
Mike Becker <universe@uap-core.de>
parents: 545
diff changeset
608
900795d59d03 #184 #170 flush at threshold test
Mike Becker <universe@uap-core.de>
parents: 545
diff changeset
609 TEST_F(BufferWrite, FlushAtThreshold) {
900795d59d03 #184 #170 flush at threshold test
Mike Becker <universe@uap-core.de>
parents: 545
diff changeset
610 enableFlushing();
900795d59d03 #184 #170 flush at threshold test
Mike Becker <universe@uap-core.de>
parents: 545
diff changeset
611 buf.flush_threshold = 12;
900795d59d03 #184 #170 flush at threshold test
Mike Becker <universe@uap-core.de>
parents: 545
diff changeset
612 buf.flags |= CX_BUFFER_AUTO_EXTEND;
900795d59d03 #184 #170 flush at threshold test
Mike Becker <universe@uap-core.de>
parents: 545
diff changeset
613 ASSERT_EQ(buf.capacity, 8);
900795d59d03 #184 #170 flush at threshold test
Mike Becker <universe@uap-core.de>
parents: 545
diff changeset
614 ASSERT_EQ(buf.pos, 4);
900795d59d03 #184 #170 flush at threshold test
Mike Becker <universe@uap-core.de>
parents: 545
diff changeset
615 size_t written = cxBufferWrite("foobar", 1, 6, &buf);
900795d59d03 #184 #170 flush at threshold test
Mike Becker <universe@uap-core.de>
parents: 545
diff changeset
616 EXPECT_EQ(written, 6);
900795d59d03 #184 #170 flush at threshold test
Mike Becker <universe@uap-core.de>
parents: 545
diff changeset
617 ASSERT_EQ(buf.pos, 10);
900795d59d03 #184 #170 flush at threshold test
Mike Becker <universe@uap-core.de>
parents: 545
diff changeset
618 ASSERT_EQ(buf.size, 10);
900795d59d03 #184 #170 flush at threshold test
Mike Becker <universe@uap-core.de>
parents: 545
diff changeset
619 ASSERT_GE(buf.capacity, 10);
900795d59d03 #184 #170 flush at threshold test
Mike Becker <universe@uap-core.de>
parents: 545
diff changeset
620 ASSERT_LE(buf.capacity, 12);
900795d59d03 #184 #170 flush at threshold test
Mike Becker <universe@uap-core.de>
parents: 545
diff changeset
621 ASSERT_EQ(target.pos, 0);
900795d59d03 #184 #170 flush at threshold test
Mike Becker <universe@uap-core.de>
parents: 545
diff changeset
622 ASSERT_EQ(target.size, 0);
900795d59d03 #184 #170 flush at threshold test
Mike Becker <universe@uap-core.de>
parents: 545
diff changeset
623 written = cxBufferWrite("hello", 1, 5, &buf);
900795d59d03 #184 #170 flush at threshold test
Mike Becker <universe@uap-core.de>
parents: 545
diff changeset
624 EXPECT_EQ(written, 5);
900795d59d03 #184 #170 flush at threshold test
Mike Becker <universe@uap-core.de>
parents: 545
diff changeset
625 EXPECT_EQ(buf.pos, 0);
900795d59d03 #184 #170 flush at threshold test
Mike Becker <universe@uap-core.de>
parents: 545
diff changeset
626 EXPECT_EQ(buf.size, 0);
900795d59d03 #184 #170 flush at threshold test
Mike Becker <universe@uap-core.de>
parents: 545
diff changeset
627 EXPECT_LE(buf.capacity, 12);
900795d59d03 #184 #170 flush at threshold test
Mike Becker <universe@uap-core.de>
parents: 545
diff changeset
628 EXPECT_EQ(target.pos, 15);
900795d59d03 #184 #170 flush at threshold test
Mike Becker <universe@uap-core.de>
parents: 545
diff changeset
629 ASSERT_EQ(target.size, 15);
900795d59d03 #184 #170 flush at threshold test
Mike Becker <universe@uap-core.de>
parents: 545
diff changeset
630 EXPECT_EQ(memcmp(target.space, "prepfoobarhello", 15), 0);
900795d59d03 #184 #170 flush at threshold test
Mike Becker <universe@uap-core.de>
parents: 545
diff changeset
631 }
547
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
632
567
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
633 TEST_F(BufferWrite, FlushRateLimited) {
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
634 enableFlushing();
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
635 // limit the rate of the flush function and the capacity of the target
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
636 target.capacity = 16;
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
637 target.flags &= ~CX_BUFFER_AUTO_EXTEND;
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
638 buf.flush_func = (cx_write_func) mock_write_limited_rate;
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
639 ASSERT_EQ(buf.capacity, 8);
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
640 ASSERT_EQ(buf.pos, 4);
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
641 size_t written = cxBufferWrite("foo", 1, 3, &buf);
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
642 EXPECT_EQ(written, 3);
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
643 ASSERT_EQ(buf.pos, 7);
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
644 ASSERT_EQ(buf.size, 7);
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
645 ASSERT_EQ(target.pos, 0);
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
646 ASSERT_EQ(target.size, 0);
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
647 written = cxBufferWrite("hello, world!", 1, 13, &buf);
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
648 // " world!" fits into this buffer, the remaining stuff is flushed out
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
649 EXPECT_EQ(written, 13);
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
650 EXPECT_EQ(buf.pos, 7);
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
651 EXPECT_EQ(buf.size, 7);
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
652 EXPECT_EQ(buf.capacity, 8);
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
653 EXPECT_EQ(memcmp(buf.space, " world!", 7), 0);
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
654 EXPECT_EQ(target.pos, 13);
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
655 ASSERT_EQ(target.size, 13);
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
656 EXPECT_EQ(target.capacity, 16);
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
657 EXPECT_EQ(memcmp(target.space, "prepfoohello,", 13), 0);
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
658 }
f90a7cfe2480 #184 #170 more thorough flush testing
Mike Becker <universe@uap-core.de>
parents: 566
diff changeset
659
548
459bca1cdf8d #170 test buffer eof
Mike Becker <universe@uap-core.de>
parents: 547
diff changeset
660 class BufferSeek : public BufferFixture {
547
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
661 };
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
662
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
663 TEST_F(BufferSeek, SetZero) {
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
664 int result = cxBufferSeek(&buf, 0, SEEK_SET);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
665 EXPECT_EQ(result, 0);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
666 EXPECT_EQ(buf.pos, 0);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
667 }
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
668
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
669 TEST_F(BufferSeek, SetValid) {
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
670 int result = cxBufferSeek(&buf, 5, SEEK_SET);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
671 EXPECT_EQ(result, 0);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
672 EXPECT_EQ(buf.pos, 5);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
673 }
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
674
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
675 TEST_F(BufferSeek, SetInvalid) {
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
676 ASSERT_EQ(buf.pos, 3);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
677 int result = cxBufferSeek(&buf, 6, SEEK_SET);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
678 EXPECT_NE(result, 0);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
679 EXPECT_EQ(buf.pos, 3);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
680 }
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
681
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
682 TEST_F(BufferSeek, CurZero) {
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
683 ASSERT_EQ(buf.pos, 3);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
684 int result = cxBufferSeek(&buf, 0, SEEK_CUR);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
685 EXPECT_EQ(result, 0);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
686 EXPECT_EQ(buf.pos, 3);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
687 }
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
688
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
689 TEST_F(BufferSeek, CurValidPositive) {
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
690 ASSERT_EQ(buf.pos, 3);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
691 int result = cxBufferSeek(&buf, 2, SEEK_CUR);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
692 EXPECT_EQ(result, 0);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
693 EXPECT_EQ(buf.pos, 5);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
694 }
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
695
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
696 TEST_F(BufferSeek, CurValidNegative) {
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
697 ASSERT_EQ(buf.pos, 3);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
698 int result = cxBufferSeek(&buf, -3, SEEK_CUR);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
699 EXPECT_EQ(result, 0);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
700 EXPECT_EQ(buf.pos, 0);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
701 }
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
702
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
703 TEST_F(BufferSeek, CurInvalidPositive) {
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
704 ASSERT_EQ(buf.pos, 3);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
705 int result = cxBufferSeek(&buf, 3, SEEK_CUR);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
706 EXPECT_NE(result, 0);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
707 EXPECT_EQ(buf.pos, 3);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
708 }
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
709
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
710 TEST_F(BufferSeek, CurInvalidNegative) {
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
711 ASSERT_EQ(buf.pos, 3);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
712 int result = cxBufferSeek(&buf, -4, SEEK_CUR);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
713 EXPECT_NE(result, 0);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
714 EXPECT_EQ(buf.pos, 3);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
715 }
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
716
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
717 TEST_F(BufferSeek, EndZero) {
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
718 ASSERT_EQ(buf.size, 6);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
719 int result = cxBufferSeek(&buf, 0, SEEK_END);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
720 // the (past-the-)end position is always invalid
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
721 EXPECT_NE(result, 0);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
722 EXPECT_EQ(buf.pos, 3);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
723 }
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
724
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
725 TEST_F(BufferSeek, EndValid) {
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
726 ASSERT_EQ(buf.size, 6);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
727 int result = cxBufferSeek(&buf, -6, SEEK_END);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
728 EXPECT_EQ(result, 0);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
729 EXPECT_EQ(buf.pos, 0);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
730 }
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
731
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
732 TEST_F(BufferSeek, EndInvalid) {
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
733 ASSERT_EQ(buf.size, 6);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
734 int result = cxBufferSeek(&buf, 1, SEEK_END);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
735 EXPECT_NE(result, 0);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
736 EXPECT_EQ(buf.pos, 3);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
737 }
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
738
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
739 TEST_F(BufferSeek, WhenceInvalid) {
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
740 ASSERT_EQ(buf.size, 6);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
741 ASSERT_EQ(buf.pos, 3);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
742 int result = cxBufferSeek(&buf, 2, 9000);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
743 EXPECT_NE(result, 0);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
744 EXPECT_EQ(buf.size, 6);
9e933920dcf9 #170 test buffer seek
Mike Becker <universe@uap-core.de>
parents: 546
diff changeset
745 EXPECT_EQ(buf.pos, 3);
548
459bca1cdf8d #170 test buffer eof
Mike Becker <universe@uap-core.de>
parents: 547
diff changeset
746 }
459bca1cdf8d #170 test buffer eof
Mike Becker <universe@uap-core.de>
parents: 547
diff changeset
747
459bca1cdf8d #170 test buffer eof
Mike Becker <universe@uap-core.de>
parents: 547
diff changeset
748 class BufferEof : public BufferFixture {
459bca1cdf8d #170 test buffer eof
Mike Becker <universe@uap-core.de>
parents: 547
diff changeset
749 };
459bca1cdf8d #170 test buffer eof
Mike Becker <universe@uap-core.de>
parents: 547
diff changeset
750
459bca1cdf8d #170 test buffer eof
Mike Becker <universe@uap-core.de>
parents: 547
diff changeset
751 TEST_F(BufferEof, Reached) {
459bca1cdf8d #170 test buffer eof
Mike Becker <universe@uap-core.de>
parents: 547
diff changeset
752 buf.pos = buf.size;
459bca1cdf8d #170 test buffer eof
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753 EXPECT_TRUE(cxBufferEof(&buf));
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754 buf.pos = buf.size - 1;
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755 ASSERT_FALSE(cxBufferEof(&buf));
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756 cxBufferPut(&buf, 'a');
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757 EXPECT_TRUE(cxBufferEof(&buf));
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758 }
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759
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760 TEST_F(BufferEof, NotReached) {
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761 buf.pos = buf.size - 1;
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762 EXPECT_FALSE(cxBufferEof(&buf));
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763 buf.pos = 0;
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764 cxBufferWrite("test", 1, 5, &buf);
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765 EXPECT_FALSE(cxBufferEof(&buf));
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766 }
568
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767
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768 class BufferRead : public ::testing::Test {
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769 protected:
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770 CxBuffer buf{};
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771
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772 void SetUp() override {
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773 cxBufferInit(&buf, nullptr, 16, cxDefaultAllocator, CX_BUFFER_DEFAULT);
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774 buf.capacity = 8; // artificially reduce capacity to check OOB writes
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775 memset(buf.space, 0, 16);
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776 memcpy(buf.space, "some data", 9);
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777 buf.size = 9;
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778 }
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779
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diff changeset
780 void TearDown() override {
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781 cxBufferDestroy(&buf);
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782 }
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783 };
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784
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diff changeset
785 TEST_F(BufferRead, GetByte) {
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786 buf.pos = 2;
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787 EXPECT_EQ(cxBufferGet(&buf), 'm');
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788 EXPECT_EQ(cxBufferGet(&buf), 'e');
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789 EXPECT_EQ(cxBufferGet(&buf), ' ');
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790 EXPECT_EQ(cxBufferGet(&buf), 'd');
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791 EXPECT_EQ(buf.pos, 6);
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792 }
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793
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diff changeset
794 TEST_F(BufferRead, GetEof) {
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diff changeset
795 buf.pos = buf.size;
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796 EXPECT_EQ(cxBufferGet(&buf), EOF);
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797 }
569
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diff changeset
798
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diff changeset
799 TEST_F(BufferRead, ReadWithinBounds) {
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800 buf.pos = 2;
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801 char target[4];
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802 auto read = cxBufferRead(&target, 1, 4, &buf);
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803 ASSERT_EQ(read, 4);
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804 EXPECT_EQ(memcmp(&target, "me d", 4), 0);
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805 EXPECT_EQ(buf.pos, 6);
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diff changeset
806 }
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diff changeset
807
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diff changeset
808 TEST_F(BufferRead, ReadOutOfBounds) {
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809 buf.pos = 6;
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diff changeset
810 char target[4];
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diff changeset
811 auto read = cxBufferRead(&target, 1, 4, &buf);
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diff changeset
812 ASSERT_EQ(read, 3);
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diff changeset
813 EXPECT_EQ(memcmp(&target, "ata", 3), 0);
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diff changeset
814 EXPECT_EQ(buf.pos, 9);
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diff changeset
815 }
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diff changeset
816
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diff changeset
817 TEST_F(BufferRead, ReadOutOfBoundsMultibyte) {
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diff changeset
818 buf.pos = 6;
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diff changeset
819 char target[4];
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diff changeset
820 target[2] = '\0';
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diff changeset
821 auto read = cxBufferRead(&target, 2, 2, &buf);
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diff changeset
822 ASSERT_EQ(read, 1);
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diff changeset
823 EXPECT_EQ(memcmp(&target, "at\0", 3), 0);
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diff changeset
824 EXPECT_EQ(buf.pos, 8);
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diff changeset
825 }
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diff changeset
826
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diff changeset
827 TEST_F(BufferRead, ReadEof) {
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diff changeset
828 buf.pos = 9;
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diff changeset
829 char target[4];
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diff changeset
830 auto read = cxBufferRead(&target, 1, 1, &buf);
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parents: 568
diff changeset
831 ASSERT_EQ(read, 0);
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parents: 568
diff changeset
832 EXPECT_EQ(buf.pos, 9);
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parents: 568
diff changeset
833 }

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