1 // Copyright 2008, Google Inc. 2 // All rights reserved. 3 // 4 // Redistribution and use in source and binary forms, with or without 5 // modification, are permitted provided that the following conditions are 6 // met: 7 // 8 // * Redistributions of source code must retain the above copyright 9 // notice, this list of conditions and the following disclaimer. 10 // * Redistributions in binary form must reproduce the above 11 // copyright notice, this list of conditions and the following disclaimer 12 // in the documentation and/or other materials provided with the 13 // distribution. 14 // * Neither the name of Google Inc. nor the names of its 15 // contributors may be used to endorse or promote products derived from 16 // this software without specific prior written permission. 17 // 18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 // 30 // Author: wan (at) google.com (Zhanyong Wan) 31 32 // Tests the --gtest_repeat=number flag. 33 34 #include <stdlib.h> 35 #include <iostream> 36 #include <gtest/gtest.h> 37 38 // Indicates that this translation unit is part of Google Test's 39 // implementation. It must come before gtest-internal-inl.h is 40 // included, or there will be a compiler error. This trick is to 41 // prevent a user from accidentally including gtest-internal-inl.h in 42 // his code. 43 #define GTEST_IMPLEMENTATION_ 1 44 #include "src/gtest-internal-inl.h" 45 #undef GTEST_IMPLEMENTATION_ 46 47 namespace testing { 48 49 GTEST_DECLARE_string_(death_test_style); 50 GTEST_DECLARE_string_(filter); 51 GTEST_DECLARE_int32_(repeat); 52 53 } // namespace testing 54 55 using testing::GTEST_FLAG(death_test_style); 56 using testing::GTEST_FLAG(filter); 57 using testing::GTEST_FLAG(repeat); 58 59 namespace { 60 61 // We need this when we are testing Google Test itself and therefore 62 // cannot use Google Test assertions. 63 #define GTEST_CHECK_INT_EQ_(expected, actual) \ 64 do {\ 65 const int expected_val = (expected);\ 66 const int actual_val = (actual);\ 67 if (::testing::internal::IsTrue(expected_val != actual_val)) {\ 68 ::std::cout << "Value of: " #actual "\n"\ 69 << " Actual: " << actual_val << "\n"\ 70 << "Expected: " #expected "\n"\ 71 << "Which is: " << expected_val << "\n";\ 72 abort();\ 73 }\ 74 } while(::testing::internal::AlwaysFalse()) 75 76 77 // Used for verifying that global environment set-up and tear-down are 78 // inside the gtest_repeat loop. 79 80 int g_environment_set_up_count = 0; 81 int g_environment_tear_down_count = 0; 82 83 class MyEnvironment : public testing::Environment { 84 public: 85 MyEnvironment() {} 86 virtual void SetUp() { g_environment_set_up_count++; } 87 virtual void TearDown() { g_environment_tear_down_count++; } 88 }; 89 90 // A test that should fail. 91 92 int g_should_fail_count = 0; 93 94 TEST(FooTest, ShouldFail) { 95 g_should_fail_count++; 96 EXPECT_EQ(0, 1) << "Expected failure."; 97 } 98 99 // A test that should pass. 100 101 int g_should_pass_count = 0; 102 103 TEST(FooTest, ShouldPass) { 104 g_should_pass_count++; 105 } 106 107 // A test that contains a thread-safe death test and a fast death 108 // test. It should pass. 109 110 int g_death_test_count = 0; 111 112 TEST(BarDeathTest, ThreadSafeAndFast) { 113 g_death_test_count++; 114 115 GTEST_FLAG(death_test_style) = "threadsafe"; 116 EXPECT_DEATH_IF_SUPPORTED(abort(), ""); 117 118 GTEST_FLAG(death_test_style) = "fast"; 119 EXPECT_DEATH_IF_SUPPORTED(abort(), ""); 120 } 121 122 #if GTEST_HAS_PARAM_TEST 123 int g_param_test_count = 0; 124 125 const int kNumberOfParamTests = 10; 126 127 class MyParamTest : public testing::TestWithParam<int> {}; 128 129 TEST_P(MyParamTest, ShouldPass) { 130 // TODO(vladl (at) google.com): Make parameter value checking robust 131 // WRT order of tests. 132 GTEST_CHECK_INT_EQ_(g_param_test_count % kNumberOfParamTests, GetParam()); 133 g_param_test_count++; 134 } 135 INSTANTIATE_TEST_CASE_P(MyParamSequence, 136 MyParamTest, 137 testing::Range(0, kNumberOfParamTests)); 138 #endif // GTEST_HAS_PARAM_TEST 139 140 // Resets the count for each test. 141 void ResetCounts() { 142 g_environment_set_up_count = 0; 143 g_environment_tear_down_count = 0; 144 g_should_fail_count = 0; 145 g_should_pass_count = 0; 146 g_death_test_count = 0; 147 #if GTEST_HAS_PARAM_TEST 148 g_param_test_count = 0; 149 #endif // GTEST_HAS_PARAM_TEST 150 } 151 152 // Checks that the count for each test is expected. 153 void CheckCounts(int expected) { 154 GTEST_CHECK_INT_EQ_(expected, g_environment_set_up_count); 155 GTEST_CHECK_INT_EQ_(expected, g_environment_tear_down_count); 156 GTEST_CHECK_INT_EQ_(expected, g_should_fail_count); 157 GTEST_CHECK_INT_EQ_(expected, g_should_pass_count); 158 GTEST_CHECK_INT_EQ_(expected, g_death_test_count); 159 #if GTEST_HAS_PARAM_TEST 160 GTEST_CHECK_INT_EQ_(expected * kNumberOfParamTests, g_param_test_count); 161 #endif // GTEST_HAS_PARAM_TEST 162 } 163 164 // Tests the behavior of Google Test when --gtest_repeat is not specified. 165 void TestRepeatUnspecified() { 166 ResetCounts(); 167 GTEST_CHECK_INT_EQ_(1, RUN_ALL_TESTS()); 168 CheckCounts(1); 169 } 170 171 // Tests the behavior of Google Test when --gtest_repeat has the given value. 172 void TestRepeat(int repeat) { 173 GTEST_FLAG(repeat) = repeat; 174 175 ResetCounts(); 176 GTEST_CHECK_INT_EQ_(repeat > 0 ? 1 : 0, RUN_ALL_TESTS()); 177 CheckCounts(repeat); 178 } 179 180 // Tests using --gtest_repeat when --gtest_filter specifies an empty 181 // set of tests. 182 void TestRepeatWithEmptyFilter(int repeat) { 183 GTEST_FLAG(repeat) = repeat; 184 GTEST_FLAG(filter) = "None"; 185 186 ResetCounts(); 187 GTEST_CHECK_INT_EQ_(0, RUN_ALL_TESTS()); 188 CheckCounts(0); 189 } 190 191 // Tests using --gtest_repeat when --gtest_filter specifies a set of 192 // successful tests. 193 void TestRepeatWithFilterForSuccessfulTests(int repeat) { 194 GTEST_FLAG(repeat) = repeat; 195 GTEST_FLAG(filter) = "*-*ShouldFail"; 196 197 ResetCounts(); 198 GTEST_CHECK_INT_EQ_(0, RUN_ALL_TESTS()); 199 GTEST_CHECK_INT_EQ_(repeat, g_environment_set_up_count); 200 GTEST_CHECK_INT_EQ_(repeat, g_environment_tear_down_count); 201 GTEST_CHECK_INT_EQ_(0, g_should_fail_count); 202 GTEST_CHECK_INT_EQ_(repeat, g_should_pass_count); 203 GTEST_CHECK_INT_EQ_(repeat, g_death_test_count); 204 #if GTEST_HAS_PARAM_TEST 205 GTEST_CHECK_INT_EQ_(repeat * kNumberOfParamTests, g_param_test_count); 206 #endif // GTEST_HAS_PARAM_TEST 207 } 208 209 // Tests using --gtest_repeat when --gtest_filter specifies a set of 210 // failed tests. 211 void TestRepeatWithFilterForFailedTests(int repeat) { 212 GTEST_FLAG(repeat) = repeat; 213 GTEST_FLAG(filter) = "*ShouldFail"; 214 215 ResetCounts(); 216 GTEST_CHECK_INT_EQ_(1, RUN_ALL_TESTS()); 217 GTEST_CHECK_INT_EQ_(repeat, g_environment_set_up_count); 218 GTEST_CHECK_INT_EQ_(repeat, g_environment_tear_down_count); 219 GTEST_CHECK_INT_EQ_(repeat, g_should_fail_count); 220 GTEST_CHECK_INT_EQ_(0, g_should_pass_count); 221 GTEST_CHECK_INT_EQ_(0, g_death_test_count); 222 #if GTEST_HAS_PARAM_TEST 223 GTEST_CHECK_INT_EQ_(0, g_param_test_count); 224 #endif // GTEST_HAS_PARAM_TEST 225 } 226 227 } // namespace 228 229 int main(int argc, char **argv) { 230 testing::InitGoogleTest(&argc, argv); 231 testing::AddGlobalTestEnvironment(new MyEnvironment); 232 233 TestRepeatUnspecified(); 234 TestRepeat(0); 235 TestRepeat(1); 236 TestRepeat(5); 237 238 TestRepeatWithEmptyFilter(2); 239 TestRepeatWithEmptyFilter(3); 240 241 TestRepeatWithFilterForSuccessfulTests(3); 242 243 TestRepeatWithFilterForFailedTests(4); 244 245 // It would be nice to verify that the tests indeed loop forever 246 // when GTEST_FLAG(repeat) is negative, but this test will be quite 247 // complicated to write. Since this flag is for interactive 248 // debugging only and doesn't affect the normal test result, such a 249 // test would be an overkill. 250 251 printf("PASS\n"); 252 return 0; 253 } 254
