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1 // Copyright (c) 2013-2014 Sandstorm Development Group, Inc. and contributors
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2 // Licensed under the MIT License:
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3 //
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4 // Permission is hereby granted, free of charge, to any person obtaining a copy
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5 // of this software and associated documentation files (the "Software"), to deal
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6 // in the Software without restriction, including without limitation the rights
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7 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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8 // copies of the Software, and to permit persons to whom the Software is
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9 // furnished to do so, subject to the following conditions:
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10 //
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11 // The above copyright notice and this permission notice shall be included in
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12 // all copies or substantial portions of the Software.
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13 //
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14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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15 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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16 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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17 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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18 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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19 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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20 // THE SOFTWARE.
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21
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22 #pragma once
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23 // This file defines compatibility macros converting Google Test tests into KJ tests.
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24 //
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25 // This is only intended to cover the most common functionality. Many tests will likely need
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26 // additional tweaks. For instance:
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27 // - Using operator<< to print information on failure is not supported. Instead, switch to
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28 // KJ_ASSERT/KJ_EXPECT and pass in stuff to print as additional parameters.
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29 // - Test fixtures are not supported. Allocate your "test fixture" on the stack instead. Do setup
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30 // in the constructor, teardown in the destructor.
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31
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32 #include <kj/test.h>
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33 #include <kj/windows-sanity.h> // work-around macro conflict with `ERROR`
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34
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35 KJ_BEGIN_HEADER
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36
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37 namespace kj {
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38
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39 namespace _ { // private
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40
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41 template <typename T>
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42 T abs(T value) { return value < 0 ? -value : value; }
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43
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44 inline bool floatAlmostEqual(float a, float b) {
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45 return a == b || abs(a - b) < (abs(a) + abs(b)) * 1e-5;
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46 }
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47
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48 inline bool doubleAlmostEqual(double a, double b) {
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49 return a == b || abs(a - b) < (abs(a) + abs(b)) * 1e-12;
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50 }
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51
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52 } // namespace _ (private)
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53
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54 #define EXPECT_FALSE(x) KJ_EXPECT(!(x))
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55 #define EXPECT_TRUE(x) KJ_EXPECT(x)
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56 #define EXPECT_EQ(x, y) KJ_EXPECT((x) == (y), x, y)
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57 #define EXPECT_NE(x, y) KJ_EXPECT((x) != (y), x, y)
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58 #define EXPECT_LE(x, y) KJ_EXPECT((x) <= (y), x, y)
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59 #define EXPECT_GE(x, y) KJ_EXPECT((x) >= (y), x, y)
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60 #define EXPECT_LT(x, y) KJ_EXPECT((x) < (y), x, y)
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61 #define EXPECT_GT(x, y) KJ_EXPECT((x) > (y), x, y)
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62 #define EXPECT_STREQ(x, y) KJ_EXPECT(::strcmp(x, y) == 0, x, y)
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63 #define EXPECT_FLOAT_EQ(x, y) KJ_EXPECT(::kj::_::floatAlmostEqual(y, x), y, x);
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64 #define EXPECT_DOUBLE_EQ(x, y) KJ_EXPECT(::kj::_::doubleAlmostEqual(y, x), y, x);
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65
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66 #define ASSERT_FALSE(x) KJ_ASSERT(!(x))
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67 #define ASSERT_TRUE(x) KJ_ASSERT(x)
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68 #define ASSERT_EQ(x, y) KJ_ASSERT((x) == (y), x, y)
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69 #define ASSERT_NE(x, y) KJ_ASSERT((x) != (y), x, y)
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70 #define ASSERT_LE(x, y) KJ_ASSERT((x) <= (y), x, y)
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71 #define ASSERT_GE(x, y) KJ_ASSERT((x) >= (y), x, y)
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72 #define ASSERT_LT(x, y) KJ_ASSERT((x) < (y), x, y)
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73 #define ASSERT_GT(x, y) KJ_ASSERT((x) > (y), x, y)
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74 #define ASSERT_STREQ(x, y) KJ_ASSERT(::strcmp(x, y) == 0, x, y)
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75 #define ASSERT_FLOAT_EQ(x, y) KJ_ASSERT(::kj::_::floatAlmostEqual(y, x), y, x);
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76 #define ASSERT_DOUBLE_EQ(x, y) KJ_ASSERT(::kj::_::doubleAlmostEqual(y, x), y, x);
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77
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78 class AddFailureAdapter {
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79 public:
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80 AddFailureAdapter(const char* file, int line): file(file), line(line) {}
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81
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82 ~AddFailureAdapter() {
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83 if (!handled) {
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84 _::Debug::log(file, line, LogSeverity::ERROR, "expectation failed");
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85 }
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86 }
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87
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88 template <typename T>
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89 void operator<<(T&& info) {
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90 handled = true;
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91 _::Debug::log(file, line, LogSeverity::ERROR, "\"expectation failed\", info",
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92 "expectation failed", kj::fwd<T>(info));
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93 }
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94
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95 private:
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96 bool handled = false;
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97 const char* file;
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98 int line;
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99 };
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100
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101 #define ADD_FAILURE() ::kj::AddFailureAdapter(__FILE__, __LINE__)
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102
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103 #if KJ_NO_EXCEPTIONS
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104 #define EXPECT_ANY_THROW(code) \
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105 KJ_EXPECT(::kj::_::expectFatalThrow(nullptr, nullptr, [&]() { code; }))
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106 #else
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107 #define EXPECT_ANY_THROW(code) \
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108 KJ_EXPECT(::kj::runCatchingExceptions([&]() { code; }) != nullptr)
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109 #endif
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110
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111 #define EXPECT_NONFATAL_FAILURE(code) \
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112 EXPECT_TRUE(kj::runCatchingExceptions([&]() { code; }) != nullptr);
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113
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114 #ifdef KJ_DEBUG
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115 #define EXPECT_DEBUG_ANY_THROW EXPECT_ANY_THROW
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116 #else
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117 #define EXPECT_DEBUG_ANY_THROW(EXP)
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118 #endif
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119
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120 #define TEST(x, y) KJ_TEST("legacy test: " #x "/" #y)
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121
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122 } // namespace kj
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123
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124 KJ_END_HEADER
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