1 // Copyright 2007, 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 using global test environments. 33 34 #include <stdlib.h> 35 #include <stdio.h> 36 #include "gtest/gtest.h" 37 38 #define GTEST_IMPLEMENTATION_ 1 // Required for the next #include. 39 #include "src/gtest-internal-inl.h" 40 #undef GTEST_IMPLEMENTATION_ 41 42 namespace testing { 43 GTEST_DECLARE_string_(filter); 44 } 45 46 namespace { 47 48 enum FailureType { 49 NO_FAILURE, NON_FATAL_FAILURE, FATAL_FAILURE 50 }; 51 52 // For testing using global test environments. 53 class MyEnvironment : public testing::Environment { 54 public: 55 MyEnvironment() { Reset(); } 56 57 // Depending on the value of failure_in_set_up_, SetUp() will 58 // generate a non-fatal failure, generate a fatal failure, or 59 // succeed. 60 virtual void SetUp() { 61 set_up_was_run_ = true; 62 63 switch (failure_in_set_up_) { 64 case NON_FATAL_FAILURE: 65 ADD_FAILURE() << "Expected non-fatal failure in global set-up."; 66 break; 67 case FATAL_FAILURE: 68 FAIL() << "Expected fatal failure in global set-up."; 69 break; 70 default: 71 break; 72 } 73 } 74 75 // Generates a non-fatal failure. 76 virtual void TearDown() { 77 tear_down_was_run_ = true; 78 ADD_FAILURE() << "Expected non-fatal failure in global tear-down."; 79 } 80 81 // Resets the state of the environment s.t. it can be reused. 82 void Reset() { 83 failure_in_set_up_ = NO_FAILURE; 84 set_up_was_run_ = false; 85 tear_down_was_run_ = false; 86 } 87 88 // We call this function to set the type of failure SetUp() should 89 // generate. 90 void set_failure_in_set_up(FailureType type) { 91 failure_in_set_up_ = type; 92 } 93 94 // Was SetUp() run? 95 bool set_up_was_run() const { return set_up_was_run_; } 96 97 // Was TearDown() run? 98 bool tear_down_was_run() const { return tear_down_was_run_; } 99 100 private: 101 FailureType failure_in_set_up_; 102 bool set_up_was_run_; 103 bool tear_down_was_run_; 104 }; 105 106 // Was the TEST run? 107 bool test_was_run; 108 109 // The sole purpose of this TEST is to enable us to check whether it 110 // was run. 111 TEST(FooTest, Bar) { 112 test_was_run = true; 113 } 114 115 // Prints the message and aborts the program if condition is false. 116 void Check(bool condition, const char* msg) { 117 if (!condition) { 118 printf("FAILED: %s\n", msg); 119 testing::internal::posix::Abort(); 120 } 121 } 122 123 // Runs the tests. Return true iff successful. 124 // 125 // The 'failure' parameter specifies the type of failure that should 126 // be generated by the global set-up. 127 int RunAllTests(MyEnvironment* env, FailureType failure) { 128 env->Reset(); 129 env->set_failure_in_set_up(failure); 130 test_was_run = false; 131 testing::internal::GetUnitTestImpl()->ClearAdHocTestResult(); 132 return RUN_ALL_TESTS(); 133 } 134 135 } // namespace 136 137 int main(int argc, char **argv) { 138 testing::InitGoogleTest(&argc, argv); 139 140 // Registers a global test environment, and verifies that the 141 // registration function returns its argument. 142 MyEnvironment* const env = new MyEnvironment; 143 Check(testing::AddGlobalTestEnvironment(env) == env, 144 "AddGlobalTestEnvironment() should return its argument."); 145 146 // Verifies that RUN_ALL_TESTS() runs the tests when the global 147 // set-up is successful. 148 Check(RunAllTests(env, NO_FAILURE) != 0, 149 "RUN_ALL_TESTS() should return non-zero, as the global tear-down " 150 "should generate a failure."); 151 Check(test_was_run, 152 "The tests should run, as the global set-up should generate no " 153 "failure"); 154 Check(env->tear_down_was_run(), 155 "The global tear-down should run, as the global set-up was run."); 156 157 // Verifies that RUN_ALL_TESTS() runs the tests when the global 158 // set-up generates no fatal failure. 159 Check(RunAllTests(env, NON_FATAL_FAILURE) != 0, 160 "RUN_ALL_TESTS() should return non-zero, as both the global set-up " 161 "and the global tear-down should generate a non-fatal failure."); 162 Check(test_was_run, 163 "The tests should run, as the global set-up should generate no " 164 "fatal failure."); 165 Check(env->tear_down_was_run(), 166 "The global tear-down should run, as the global set-up was run."); 167 168 // Verifies that RUN_ALL_TESTS() runs no test when the global set-up 169 // generates a fatal failure. 170 Check(RunAllTests(env, FATAL_FAILURE) != 0, 171 "RUN_ALL_TESTS() should return non-zero, as the global set-up " 172 "should generate a fatal failure."); 173 Check(!test_was_run, 174 "The tests should not run, as the global set-up should generate " 175 "a fatal failure."); 176 Check(env->tear_down_was_run(), 177 "The global tear-down should run, as the global set-up was run."); 178 179 // Verifies that RUN_ALL_TESTS() doesn't do global set-up or 180 // tear-down when there is no test to run. 181 testing::GTEST_FLAG(filter) = "-*"; 182 Check(RunAllTests(env, NO_FAILURE) == 0, 183 "RUN_ALL_TESTS() should return zero, as there is no test to run."); 184 Check(!env->set_up_was_run(), 185 "The global set-up should not run, as there is no test to run."); 186 Check(!env->tear_down_was_run(), 187 "The global tear-down should not run, " 188 "as the global set-up was not run."); 189 190 printf("PASS\n"); 191 return 0; 192 } 193
