ceph/src/rapidjson/thirdparty/gtest/googletest/test/gtest_repeat_test.cc

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  30 // Author: wan@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       ::testing::internal::posix::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(::testing::internal::posix::Abort(), "");
 117
 118   GTEST_FLAG(death_test_style) = "fast";
 119   EXPECT_DEATH_IF_SUPPORTED(::testing::internal::posix::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@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 }