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CI: cleanup; remove source URL
author Paper <paper@paper.us.eu.org>
date Mon, 15 Jul 2024 01:01:52 -0400
parents 1faa72660932
children
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1 // Formatting library for C++ - tests of custom Google Test assertions
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2 //
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3 // Copyright (c) 2012 - present, Victor Zverovich
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4 // All rights reserved.
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5 //
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6 // For the license information refer to format.h.
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7
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8 #include "gtest-extra.h"
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9
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10 #include <gtest/gtest-spi.h>
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11
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12 #include <cstring>
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13 #include <memory>
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14 #include <stdexcept>
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15
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16 #include "fmt/os.h"
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17 #include "util.h"
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18
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19 // Tests that assertion macros evaluate their arguments exactly once.
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20 namespace {
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21 class single_evaluation_test : public ::testing::Test {
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22 protected:
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23 single_evaluation_test() {
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24 p_ = s_;
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25 a_ = 0;
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26 b_ = 0;
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27 }
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28
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29 static const char* const s_;
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30 static const char* p_;
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31
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32 static int a_;
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33 static int b_;
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34 };
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35 } // namespace
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36
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37 const char* const single_evaluation_test::s_ = "01234";
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38 const char* single_evaluation_test::p_;
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39 int single_evaluation_test::a_;
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40 int single_evaluation_test::b_;
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41
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42 void do_nothing() {}
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43
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44 FMT_NORETURN void throw_exception() { throw std::runtime_error("test"); }
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45
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46 FMT_NORETURN void throw_system_error() {
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47 throw fmt::system_error(EDOM, "test");
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48 }
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49
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50 // Tests that when EXPECT_THROW_MSG fails, it evaluates its message argument
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51 // exactly once.
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52 TEST_F(single_evaluation_test, failed_expect_throw_msg) {
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53 EXPECT_NONFATAL_FAILURE(
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54 EXPECT_THROW_MSG(throw_exception(), std::exception, p_++), "01234");
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55 EXPECT_EQ(s_ + 1, p_);
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56 }
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57
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58 // Tests that when EXPECT_SYSTEM_ERROR fails, it evaluates its message argument
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59 // exactly once.
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60 TEST_F(single_evaluation_test, failed_expect_system_error) {
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61 EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, p_++),
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62 "01234");
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63 EXPECT_EQ(s_ + 1, p_);
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64 }
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65
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66 // Tests that assertion arguments are evaluated exactly once.
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67 TEST_F(single_evaluation_test, exception_tests) {
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68 // successful EXPECT_THROW_MSG
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69 EXPECT_THROW_MSG(
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70 { // NOLINT
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71 a_++;
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72 throw_exception();
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73 },
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74 std::exception, (b_++, "test"));
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75 EXPECT_EQ(1, a_);
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76 EXPECT_EQ(1, b_);
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77
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78 // failed EXPECT_THROW_MSG, throws different type
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79 EXPECT_NONFATAL_FAILURE(EXPECT_THROW_MSG(
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80 { // NOLINT
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81 a_++;
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82 throw_exception();
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83 },
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84 std::logic_error, (b_++, "test")),
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85 "throws a different type");
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86 EXPECT_EQ(2, a_);
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87 EXPECT_EQ(2, b_);
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88
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89 // failed EXPECT_THROW_MSG, throws an exception with different message
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90 EXPECT_NONFATAL_FAILURE(EXPECT_THROW_MSG(
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91 { // NOLINT
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92 a_++;
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93 throw_exception();
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94 },
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95 std::exception, (b_++, "other")),
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96 "throws an exception with a different message");
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97 EXPECT_EQ(3, a_);
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98 EXPECT_EQ(3, b_);
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99
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100 // failed EXPECT_THROW_MSG, throws nothing
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101 EXPECT_NONFATAL_FAILURE(
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102 EXPECT_THROW_MSG(a_++, std::exception, (b_++, "test")), "throws nothing");
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103 EXPECT_EQ(4, a_);
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104 EXPECT_EQ(4, b_);
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105 }
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106
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107 TEST_F(single_evaluation_test, system_error_tests) {
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108 // successful EXPECT_SYSTEM_ERROR
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109 EXPECT_SYSTEM_ERROR(
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110 { // NOLINT
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111 a_++;
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112 throw_system_error();
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113 },
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114 EDOM, (b_++, "test"));
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115 EXPECT_EQ(1, a_);
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116 EXPECT_EQ(1, b_);
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117
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118 // failed EXPECT_SYSTEM_ERROR, throws different type
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119 EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR(
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120 { // NOLINT
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121 a_++;
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122 throw_exception();
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123 },
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124 EDOM, (b_++, "test")),
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125 "throws a different type");
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126 EXPECT_EQ(2, a_);
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127 EXPECT_EQ(2, b_);
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128
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129 // failed EXPECT_SYSTEM_ERROR, throws an exception with different message
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130 EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR(
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131 { // NOLINT
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132 a_++;
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133 throw_system_error();
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134 },
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135 EDOM, (b_++, "other")),
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136 "throws an exception with a different message");
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137 EXPECT_EQ(3, a_);
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138 EXPECT_EQ(3, b_);
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139
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140 // failed EXPECT_SYSTEM_ERROR, throws nothing
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141 EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR(a_++, EDOM, (b_++, "test")),
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142 "throws nothing");
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143 EXPECT_EQ(4, a_);
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144 EXPECT_EQ(4, b_);
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145 }
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146
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147 #if FMT_USE_FCNTL
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148 // Tests that when EXPECT_WRITE fails, it evaluates its message argument
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149 // exactly once.
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150 TEST_F(single_evaluation_test, failed_expect_write) {
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151 EXPECT_NONFATAL_FAILURE(EXPECT_WRITE(stdout, std::printf("test"), p_++),
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152 "01234");
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153 EXPECT_EQ(s_ + 1, p_);
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154 }
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155
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156 // Tests that assertion arguments are evaluated exactly once.
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157 TEST_F(single_evaluation_test, write_tests) {
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158 // successful EXPECT_WRITE
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159 EXPECT_WRITE(
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160 stdout,
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Paper <paper@paper.us.eu.org>
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161 { // NOLINT
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Paper <paper@paper.us.eu.org>
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162 a_++;
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163 std::printf("test");
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164 },
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165 (b_++, "test"));
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166 EXPECT_EQ(1, a_);
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167 EXPECT_EQ(1, b_);
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168
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169 // failed EXPECT_WRITE
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170 EXPECT_NONFATAL_FAILURE(EXPECT_WRITE(
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171 stdout,
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172 { // NOLINT
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173 a_++;
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174 std::printf("test");
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175 },
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176 (b_++, "other")),
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177 "Actual: test");
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178 EXPECT_EQ(2, a_);
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Paper <paper@paper.us.eu.org>
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179 EXPECT_EQ(2, b_);
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180 }
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181
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182 // Tests EXPECT_WRITE.
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183 TEST(gtest_extra_test, expect_write) {
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184 EXPECT_WRITE(stdout, do_nothing(), "");
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185 EXPECT_WRITE(stdout, std::printf("test"), "test");
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Paper <paper@paper.us.eu.org>
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186 EXPECT_WRITE(stderr, std::fprintf(stderr, "test"), "test");
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187 EXPECT_NONFATAL_FAILURE(EXPECT_WRITE(stdout, std::printf("that"), "this"),
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188 "Expected: this\n"
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Paper <paper@paper.us.eu.org>
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189 " Actual: that");
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Paper <paper@paper.us.eu.org>
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190 }
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191
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Paper <paper@paper.us.eu.org>
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192 TEST(gtest_extra_test, expect_write_streaming) {
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193 EXPECT_WRITE(stdout, std::printf("test"), "test") << "unexpected failure";
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194 EXPECT_NONFATAL_FAILURE(EXPECT_WRITE(stdout, std::printf("test"), "other")
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195 << "expected failure",
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Paper <paper@paper.us.eu.org>
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196 "expected failure");
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Paper <paper@paper.us.eu.org>
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197 }
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198 #endif // FMT_USE_FCNTL
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199
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200 // Tests that the compiler will not complain about unreachable code in the
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Paper <paper@paper.us.eu.org>
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201 // EXPECT_THROW_MSG macro.
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202 TEST(gtest_extra_test, expect_throw_no_unreachable_code_warning) {
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203 int n = 0;
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Paper <paper@paper.us.eu.org>
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204 (void)n;
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Paper <paper@paper.us.eu.org>
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205 using std::runtime_error;
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Paper <paper@paper.us.eu.org>
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206 EXPECT_THROW_MSG(throw runtime_error(""), runtime_error, "");
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207 EXPECT_NONFATAL_FAILURE(EXPECT_THROW_MSG(n++, runtime_error, ""), "");
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208 EXPECT_NONFATAL_FAILURE(EXPECT_THROW_MSG(throw 1, runtime_error, ""), "");
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209 EXPECT_NONFATAL_FAILURE(
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210 EXPECT_THROW_MSG(throw runtime_error("a"), runtime_error, "b"), "");
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Paper <paper@paper.us.eu.org>
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211 }
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Paper <paper@paper.us.eu.org>
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212
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Paper <paper@paper.us.eu.org>
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213 // Tests that the compiler will not complain about unreachable code in the
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Paper <paper@paper.us.eu.org>
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214 // EXPECT_SYSTEM_ERROR macro.
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215 TEST(gtest_extra_test, expect_system_error_no_unreachable_code_warning) {
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216 int n = 0;
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Paper <paper@paper.us.eu.org>
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217 (void)n;
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Paper <paper@paper.us.eu.org>
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218 EXPECT_SYSTEM_ERROR(throw fmt::system_error(EDOM, "test"), EDOM, "test");
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219 EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR(n++, EDOM, ""), "");
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220 EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR(throw 1, EDOM, ""), "");
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221 EXPECT_NONFATAL_FAILURE(
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222 EXPECT_SYSTEM_ERROR(throw fmt::system_error(EDOM, "aaa"), EDOM, "bbb"),
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Paper <paper@paper.us.eu.org>
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223 "");
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Paper <paper@paper.us.eu.org>
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224 }
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Paper <paper@paper.us.eu.org>
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225
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226 TEST(gtest_extra_test, expect_throw_behaves_like_single_statement) {
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227 if (::testing::internal::AlwaysFalse())
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Paper <paper@paper.us.eu.org>
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228 EXPECT_THROW_MSG(do_nothing(), std::exception, "");
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Paper <paper@paper.us.eu.org>
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229
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Paper <paper@paper.us.eu.org>
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230 if (::testing::internal::AlwaysTrue())
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Paper <paper@paper.us.eu.org>
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231 EXPECT_THROW_MSG(throw_exception(), std::exception, "test");
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Paper <paper@paper.us.eu.org>
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232 else
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233 do_nothing();
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Paper <paper@paper.us.eu.org>
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234 }
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235
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Paper <paper@paper.us.eu.org>
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236 TEST(gtest_extra_test, expect_system_error_behaves_like_single_statement) {
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Paper <paper@paper.us.eu.org>
parents:
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237 if (::testing::internal::AlwaysFalse())
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Paper <paper@paper.us.eu.org>
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238 EXPECT_SYSTEM_ERROR(do_nothing(), EDOM, "");
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Paper <paper@paper.us.eu.org>
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239
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Paper <paper@paper.us.eu.org>
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240 if (::testing::internal::AlwaysTrue())
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Paper <paper@paper.us.eu.org>
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241 EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, "test");
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Paper <paper@paper.us.eu.org>
parents:
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242 else
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Paper <paper@paper.us.eu.org>
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243 do_nothing();
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Paper <paper@paper.us.eu.org>
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244 }
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245
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Paper <paper@paper.us.eu.org>
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246 TEST(gtest_extra_test, expect_write_behaves_like_single_statement) {
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Paper <paper@paper.us.eu.org>
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247 if (::testing::internal::AlwaysFalse())
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Paper <paper@paper.us.eu.org>
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248 EXPECT_WRITE(stdout, std::printf("x"), "x");
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Paper <paper@paper.us.eu.org>
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249
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Paper <paper@paper.us.eu.org>
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250 if (::testing::internal::AlwaysTrue())
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Paper <paper@paper.us.eu.org>
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251 EXPECT_WRITE(stdout, std::printf("x"), "x");
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Paper <paper@paper.us.eu.org>
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252 else
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Paper <paper@paper.us.eu.org>
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253 do_nothing();
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Paper <paper@paper.us.eu.org>
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254 }
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255
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256 // Tests EXPECT_THROW_MSG.
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257 TEST(gtest_extra_test, expect_throw_msg) {
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258 EXPECT_THROW_MSG(throw_exception(), std::exception, "test");
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259 EXPECT_NONFATAL_FAILURE(
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260 EXPECT_THROW_MSG(throw_exception(), std::logic_error, "test"),
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261 "Expected: throw_exception() throws an exception of "
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Paper <paper@paper.us.eu.org>
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262 "type std::logic_error.\n Actual: it throws a different type.");
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Paper <paper@paper.us.eu.org>
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263 EXPECT_NONFATAL_FAILURE(
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264 EXPECT_THROW_MSG(do_nothing(), std::exception, "test"),
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Paper <paper@paper.us.eu.org>
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265 "Expected: do_nothing() throws an exception of type std::exception.\n"
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Paper <paper@paper.us.eu.org>
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266 " Actual: it throws nothing.");
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267 EXPECT_NONFATAL_FAILURE(
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268 EXPECT_THROW_MSG(throw_exception(), std::exception, "other"),
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Paper <paper@paper.us.eu.org>
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269 "throw_exception() throws an exception with a different message.\n"
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270 "Expected: other\n"
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271 " Actual: test");
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272 }
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273
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274 // Tests EXPECT_SYSTEM_ERROR.
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275 TEST(gtest_extra_test, expect_system_error) {
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276 EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, "test");
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277 EXPECT_NONFATAL_FAILURE(
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278 EXPECT_SYSTEM_ERROR(throw_exception(), EDOM, "test"),
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Paper <paper@paper.us.eu.org>
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279 "Expected: throw_exception() throws an exception of "
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Paper <paper@paper.us.eu.org>
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280 "type std::system_error.\n Actual: it throws a different type.");
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Paper <paper@paper.us.eu.org>
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281 EXPECT_NONFATAL_FAILURE(
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Paper <paper@paper.us.eu.org>
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282 EXPECT_SYSTEM_ERROR(do_nothing(), EDOM, "test"),
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283 "Expected: do_nothing() throws an exception of type std::system_error.\n"
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284 " Actual: it throws nothing.");
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285 EXPECT_NONFATAL_FAILURE(
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286 EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, "other"),
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Paper <paper@paper.us.eu.org>
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287 fmt::format(
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Paper <paper@paper.us.eu.org>
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288 "throw_system_error() throws an exception with a different message.\n"
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Paper <paper@paper.us.eu.org>
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289 "Expected: {}\n"
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Paper <paper@paper.us.eu.org>
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290 " Actual: {}",
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Paper <paper@paper.us.eu.org>
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291 system_error_message(EDOM, "other"),
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Paper <paper@paper.us.eu.org>
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292 system_error_message(EDOM, "test")));
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293 }
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294
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295 TEST(gtest_extra_test, expect_throw_msg_streaming) {
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296 EXPECT_THROW_MSG(throw_exception(), std::exception, "test")
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297 << "unexpected failure";
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298 EXPECT_NONFATAL_FAILURE(
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299 EXPECT_THROW_MSG(throw_exception(), std::exception, "other")
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Paper <paper@paper.us.eu.org>
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300 << "expected failure",
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Paper <paper@paper.us.eu.org>
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301 "expected failure");
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parents:
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302 }
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Paper <paper@paper.us.eu.org>
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diff changeset
303
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
304 TEST(gtest_extra_test, expect_system_error_streaming) {
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Paper <paper@paper.us.eu.org>
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305 EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, "test")
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Paper <paper@paper.us.eu.org>
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diff changeset
306 << "unexpected failure";
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Paper <paper@paper.us.eu.org>
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diff changeset
307 EXPECT_NONFATAL_FAILURE(
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
308 EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, "other")
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
309 << "expected failure",
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
310 "expected failure");
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
311 }
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Paper <paper@paper.us.eu.org>
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diff changeset
312
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Paper <paper@paper.us.eu.org>
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313 #if FMT_USE_FCNTL
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Paper <paper@paper.us.eu.org>
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314
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Paper <paper@paper.us.eu.org>
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315 using fmt::buffered_file;
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Paper <paper@paper.us.eu.org>
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diff changeset
316 using fmt::file;
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
317
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Paper <paper@paper.us.eu.org>
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318 TEST(output_redirect_test, scoped_redirect) {
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Paper <paper@paper.us.eu.org>
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319 file read_end, write_end;
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Paper <paper@paper.us.eu.org>
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diff changeset
320 file::pipe(read_end, write_end);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
321 {
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Paper <paper@paper.us.eu.org>
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diff changeset
322 buffered_file file(write_end.fdopen("w"));
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Paper <paper@paper.us.eu.org>
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323 std::fprintf(file.get(), "[[[");
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
324 {
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
325 output_redirect redir(file.get());
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
326 std::fprintf(file.get(), "censored");
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
327 }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
328 std::fprintf(file.get(), "]]]");
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
329 }
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Paper <paper@paper.us.eu.org>
parents:
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330 EXPECT_READ(read_end, "[[[]]]");
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Paper <paper@paper.us.eu.org>
parents:
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331 }
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Paper <paper@paper.us.eu.org>
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332
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Paper <paper@paper.us.eu.org>
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333 // Test that output_redirect handles errors in flush correctly.
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Paper <paper@paper.us.eu.org>
parents:
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334 TEST(output_redirect_test, flush_error_in_ctor) {
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Paper <paper@paper.us.eu.org>
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335 file read_end, write_end;
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Paper <paper@paper.us.eu.org>
parents:
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336 file::pipe(read_end, write_end);
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Paper <paper@paper.us.eu.org>
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337 int write_fd = write_end.descriptor();
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Paper <paper@paper.us.eu.org>
parents:
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338 file write_copy = write_end.dup(write_fd);
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Paper <paper@paper.us.eu.org>
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339 buffered_file f = write_end.fdopen("w");
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
340 // Put a character in a file buffer.
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Paper <paper@paper.us.eu.org>
parents:
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341 EXPECT_EQ('x', fputc('x', f.get()));
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Paper <paper@paper.us.eu.org>
parents:
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342 FMT_POSIX(close(write_fd));
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Paper <paper@paper.us.eu.org>
parents:
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343 std::unique_ptr<output_redirect> redir{nullptr};
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Paper <paper@paper.us.eu.org>
parents:
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344 EXPECT_SYSTEM_ERROR_NOASSERT(redir.reset(new output_redirect(f.get())), EBADF,
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Paper <paper@paper.us.eu.org>
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345 "cannot flush stream");
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Paper <paper@paper.us.eu.org>
parents:
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346 redir.reset(nullptr);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
347 write_copy.dup2(write_fd); // "undo" close or dtor will fail
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Paper <paper@paper.us.eu.org>
parents:
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348 }
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Paper <paper@paper.us.eu.org>
parents:
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349
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Paper <paper@paper.us.eu.org>
parents:
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350 TEST(output_redirect_test, dup_error_in_ctor) {
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Paper <paper@paper.us.eu.org>
parents:
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351 buffered_file f = open_buffered_file();
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
352 int fd = (f.descriptor)();
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Paper <paper@paper.us.eu.org>
parents:
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353 file copy = file::dup(fd);
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Paper <paper@paper.us.eu.org>
parents:
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354 FMT_POSIX(close(fd));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
355 std::unique_ptr<output_redirect> redir{nullptr};
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Paper <paper@paper.us.eu.org>
parents:
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356 EXPECT_SYSTEM_ERROR_NOASSERT(
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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357 redir.reset(new output_redirect(f.get(), false)), EBADF,
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
358 fmt::format("cannot duplicate file descriptor {}", fd));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
359 copy.dup2(fd); // "undo" close or dtor will fail
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Paper <paper@paper.us.eu.org>
parents:
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360 }
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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361
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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362 TEST(output_redirect_test, restore_and_read) {
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Paper <paper@paper.us.eu.org>
parents:
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363 file read_end, write_end;
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Paper <paper@paper.us.eu.org>
parents:
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364 file::pipe(read_end, write_end);
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Paper <paper@paper.us.eu.org>
parents:
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365 buffered_file file(write_end.fdopen("w"));
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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366 std::fprintf(file.get(), "[[[");
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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367 output_redirect redir(file.get());
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Paper <paper@paper.us.eu.org>
parents:
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368 std::fprintf(file.get(), "censored");
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Paper <paper@paper.us.eu.org>
parents:
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369 EXPECT_EQ("censored", redir.restore_and_read());
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
370 EXPECT_EQ("", redir.restore_and_read());
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Paper <paper@paper.us.eu.org>
parents:
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371 std::fprintf(file.get(), "]]]");
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Paper <paper@paper.us.eu.org>
parents:
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372 file = buffered_file();
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Paper <paper@paper.us.eu.org>
parents:
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373 EXPECT_READ(read_end, "[[[]]]");
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Paper <paper@paper.us.eu.org>
parents:
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374 }
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Paper <paper@paper.us.eu.org>
parents:
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375
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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376 // Test that OutputRedirect handles errors in flush correctly.
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
377 TEST(output_redirect_test, flush_error_in_restore_and_read) {
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Paper <paper@paper.us.eu.org>
parents:
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378 file read_end, write_end;
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Paper <paper@paper.us.eu.org>
parents:
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379 file::pipe(read_end, write_end);
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Paper <paper@paper.us.eu.org>
parents:
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380 int write_fd = write_end.descriptor();
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Paper <paper@paper.us.eu.org>
parents:
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381 file write_copy = write_end.dup(write_fd);
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Paper <paper@paper.us.eu.org>
parents:
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382 buffered_file f = write_end.fdopen("w");
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Paper <paper@paper.us.eu.org>
parents:
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383 output_redirect redir(f.get());
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
384 // Put a character in a file buffer.
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Paper <paper@paper.us.eu.org>
parents:
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385 EXPECT_EQ('x', fputc('x', f.get()));
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Paper <paper@paper.us.eu.org>
parents:
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386 FMT_POSIX(close(write_fd));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
387 EXPECT_SYSTEM_ERROR_NOASSERT(redir.restore_and_read(), EBADF,
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
388 "cannot flush stream");
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
389 write_copy.dup2(write_fd); // "undo" close or dtor will fail
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
390 }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
391
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
392 TEST(output_redirect_test, error_in_dtor) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
393 file read_end, write_end;
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
394 file::pipe(read_end, write_end);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
395 int write_fd = write_end.descriptor();
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Paper <paper@paper.us.eu.org>
parents:
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396 file write_copy = write_end.dup(write_fd);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
397 buffered_file f = write_end.fdopen("w");
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
398 std::unique_ptr<output_redirect> redir(new output_redirect(f.get()));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
399 // Put a character in a file buffer.
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
400 EXPECT_EQ('x', fputc('x', f.get()));
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
401 EXPECT_WRITE(
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
402 stderr,
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
403 {
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
404 // The close function must be called inside EXPECT_WRITE,
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
405 // otherwise the system may recycle closed file descriptor when
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
406 // redirecting the output in EXPECT_STDERR and the second close
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
407 // will break output redirection.
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
408 FMT_POSIX(close(write_fd));
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
409 SUPPRESS_ASSERT(redir.reset(nullptr));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
410 },
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
411 system_error_message(EBADF, "cannot flush stream"));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
412 write_copy.dup2(write_fd); // "undo" close or dtor of buffered_file will fail
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
413 }
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
414
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
415 #endif // FMT_USE_FCNTL