ceph/src/jaegertracing/opentelemetry-cpp/third_party/prometheus-cpp/3rdparty/googletest/googletest/test/googletest-listener-test.cc

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  28
  29 //
  30 // The Google C++ Testing and Mocking Framework (Google Test)
  31 //
  32 // This file verifies Google Test event listeners receive events at the
  33 // right times.
  34
  35 #include <vector>
  36
  37 #include "gtest/gtest.h"
  38 #include "gtest/internal/custom/gtest.h"
  39
  40 using ::testing::AddGlobalTestEnvironment;
  41 using ::testing::Environment;
  42 using ::testing::InitGoogleTest;
  43 using ::testing::Test;
  44 using ::testing::TestSuite;
  45 using ::testing::TestEventListener;
  46 using ::testing::TestInfo;
  47 using ::testing::TestPartResult;
  48 using ::testing::UnitTest;
  49
  50 // Used by tests to register their events.
  51 std::vector<std::string>* g_events = nullptr;
  52
  53 namespace testing {
  54 namespace internal {
  55
  56 class EventRecordingListener : public TestEventListener {
  57  public:
  58   explicit EventRecordingListener(const char* name) : name_(name) {}
  59
  60  protected:
  61   void OnTestProgramStart(const UnitTest& /*unit_test*/) override {
  62     g_events->push_back(GetFullMethodName("OnTestProgramStart"));
  63   }
  64
  65   void OnTestIterationStart(const UnitTest& /*unit_test*/,
  66                             int iteration) override {
  67     Message message;
  68     message << GetFullMethodName("OnTestIterationStart")
  69             << "(" << iteration << ")";
  70     g_events->push_back(message.GetString());
  71   }
  72
  73   void OnEnvironmentsSetUpStart(const UnitTest& /*unit_test*/) override {
  74     g_events->push_back(GetFullMethodName("OnEnvironmentsSetUpStart"));
  75   }
  76
  77   void OnEnvironmentsSetUpEnd(const UnitTest& /*unit_test*/) override {
  78     g_events->push_back(GetFullMethodName("OnEnvironmentsSetUpEnd"));
  79   }
  80 #ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
  81   void OnTestCaseStart(const TestCase& /*test_case*/) override {
  82     g_events->push_back(GetFullMethodName("OnTestCaseStart"));
  83   }
  84 #endif  // GTEST_REMOVE_LEGACY_TEST_CASEAPI_
  85
  86   void OnTestStart(const TestInfo& /*test_info*/) override {
  87     g_events->push_back(GetFullMethodName("OnTestStart"));
  88   }
  89
  90   void OnTestPartResult(const TestPartResult& /*test_part_result*/) override {
  91     g_events->push_back(GetFullMethodName("OnTestPartResult"));
  92   }
  93
  94   void OnTestEnd(const TestInfo& /*test_info*/) override {
  95     g_events->push_back(GetFullMethodName("OnTestEnd"));
  96   }
  97
  98 #ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
  99   void OnTestCaseEnd(const TestCase& /*test_case*/) override {
 100     g_events->push_back(GetFullMethodName("OnTestCaseEnd"));
 101   }
 102 #endif  // GTEST_REMOVE_LEGACY_TEST_CASEAPI_
 103
 104   void OnEnvironmentsTearDownStart(const UnitTest& /*unit_test*/) override {
 105     g_events->push_back(GetFullMethodName("OnEnvironmentsTearDownStart"));
 106   }
 107
 108   void OnEnvironmentsTearDownEnd(const UnitTest& /*unit_test*/) override {
 109     g_events->push_back(GetFullMethodName("OnEnvironmentsTearDownEnd"));
 110   }
 111
 112   void OnTestIterationEnd(const UnitTest& /*unit_test*/,
 113                           int iteration) override {
 114     Message message;
 115     message << GetFullMethodName("OnTestIterationEnd")
 116             << "("  << iteration << ")";
 117     g_events->push_back(message.GetString());
 118   }
 119
 120   void OnTestProgramEnd(const UnitTest& /*unit_test*/) override {
 121     g_events->push_back(GetFullMethodName("OnTestProgramEnd"));
 122   }
 123
 124  private:
 125   std::string GetFullMethodName(const char* name) {
 126     return name_ + "." + name;
 127   }
 128
 129   std::string name_;
 130 };
 131
 132 // This listener is using OnTestSuiteStart, OnTestSuiteEnd API
 133 class EventRecordingListener2 : public TestEventListener {
 134  public:
 135   explicit EventRecordingListener2(const char* name) : name_(name) {}
 136
 137  protected:
 138   void OnTestProgramStart(const UnitTest& /*unit_test*/) override {
 139     g_events->push_back(GetFullMethodName("OnTestProgramStart"));
 140   }
 141
 142   void OnTestIterationStart(const UnitTest& /*unit_test*/,
 143                             int iteration) override {
 144     Message message;
 145     message << GetFullMethodName("OnTestIterationStart") << "(" << iteration
 146             << ")";
 147     g_events->push_back(message.GetString());
 148   }
 149
 150   void OnEnvironmentsSetUpStart(const UnitTest& /*unit_test*/) override {
 151     g_events->push_back(GetFullMethodName("OnEnvironmentsSetUpStart"));
 152   }
 153
 154   void OnEnvironmentsSetUpEnd(const UnitTest& /*unit_test*/) override {
 155     g_events->push_back(GetFullMethodName("OnEnvironmentsSetUpEnd"));
 156   }
 157
 158   void OnTestSuiteStart(const TestSuite& /*test_suite*/) override {
 159     g_events->push_back(GetFullMethodName("OnTestSuiteStart"));
 160   }
 161
 162   void OnTestStart(const TestInfo& /*test_info*/) override {
 163     g_events->push_back(GetFullMethodName("OnTestStart"));
 164   }
 165
 166   void OnTestPartResult(const TestPartResult& /*test_part_result*/) override {
 167     g_events->push_back(GetFullMethodName("OnTestPartResult"));
 168   }
 169
 170   void OnTestEnd(const TestInfo& /*test_info*/) override {
 171     g_events->push_back(GetFullMethodName("OnTestEnd"));
 172   }
 173
 174   void OnTestSuiteEnd(const TestSuite& /*test_suite*/) override {
 175     g_events->push_back(GetFullMethodName("OnTestSuiteEnd"));
 176   }
 177
 178   void OnEnvironmentsTearDownStart(const UnitTest& /*unit_test*/) override {
 179     g_events->push_back(GetFullMethodName("OnEnvironmentsTearDownStart"));
 180   }
 181
 182   void OnEnvironmentsTearDownEnd(const UnitTest& /*unit_test*/) override {
 183     g_events->push_back(GetFullMethodName("OnEnvironmentsTearDownEnd"));
 184   }
 185
 186   void OnTestIterationEnd(const UnitTest& /*unit_test*/,
 187                           int iteration) override {
 188     Message message;
 189     message << GetFullMethodName("OnTestIterationEnd") << "(" << iteration
 190             << ")";
 191     g_events->push_back(message.GetString());
 192   }
 193
 194   void OnTestProgramEnd(const UnitTest& /*unit_test*/) override {
 195     g_events->push_back(GetFullMethodName("OnTestProgramEnd"));
 196   }
 197
 198  private:
 199   std::string GetFullMethodName(const char* name) { return name_ + "." + name; }
 200
 201   std::string name_;
 202 };
 203
 204 class EnvironmentInvocationCatcher : public Environment {
 205  protected:
 206   void SetUp() override { g_events->push_back("Environment::SetUp"); }
 207
 208   void TearDown() override { g_events->push_back("Environment::TearDown"); }
 209 };
 210
 211 class ListenerTest : public Test {
 212  protected:
 213   static void SetUpTestSuite() {
 214     g_events->push_back("ListenerTest::SetUpTestSuite");
 215   }
 216
 217   static void TearDownTestSuite() {
 218     g_events->push_back("ListenerTest::TearDownTestSuite");
 219   }
 220
 221   void SetUp() override { g_events->push_back("ListenerTest::SetUp"); }
 222
 223   void TearDown() override { g_events->push_back("ListenerTest::TearDown"); }
 224 };
 225
 226 TEST_F(ListenerTest, DoesFoo) {
 227   // Test execution order within a test case is not guaranteed so we are not
 228   // recording the test name.
 229   g_events->push_back("ListenerTest::* Test Body");
 230   SUCCEED();  // Triggers OnTestPartResult.
 231 }
 232
 233 TEST_F(ListenerTest, DoesBar) {
 234   g_events->push_back("ListenerTest::* Test Body");
 235   SUCCEED();  // Triggers OnTestPartResult.
 236 }
 237
 238 }  // namespace internal
 239
 240 }  // namespace testing
 241
 242 using ::testing::internal::EnvironmentInvocationCatcher;
 243 using ::testing::internal::EventRecordingListener;
 244 using ::testing::internal::EventRecordingListener2;
 245
 246 void VerifyResults(const std::vector<std::string>& data,
 247                    const char* const* expected_data,
 248                    size_t expected_data_size) {
 249   const size_t actual_size = data.size();
 250   // If the following assertion fails, a new entry will be appended to
 251   // data.  Hence we save data.size() first.
 252   EXPECT_EQ(expected_data_size, actual_size);
 253
 254   // Compares the common prefix.
 255   const size_t shorter_size = expected_data_size <= actual_size ?
 256       expected_data_size : actual_size;
 257   size_t i = 0;
 258   for (; i < shorter_size; ++i) {
 259     ASSERT_STREQ(expected_data[i], data[i].c_str())
 260         << "at position " << i;
 261   }
 262
 263   // Prints extra elements in the actual data.
 264   for (; i < actual_size; ++i) {
 265     printf("  Actual event #%lu: %s\n",
 266         static_cast<unsigned long>(i), data[i].c_str());
 267   }
 268 }
 269
 270 int main(int argc, char **argv) {
 271   std::vector<std::string> events;
 272   g_events = &events;
 273   InitGoogleTest(&argc, argv);
 274
 275   UnitTest::GetInstance()->listeners().Append(
 276       new EventRecordingListener("1st"));
 277   UnitTest::GetInstance()->listeners().Append(
 278       new EventRecordingListener("2nd"));
 279   UnitTest::GetInstance()->listeners().Append(
 280       new EventRecordingListener2("3rd"));
 281
 282   AddGlobalTestEnvironment(new EnvironmentInvocationCatcher);
 283
 284   GTEST_CHECK_(events.size() == 0)
 285       << "AddGlobalTestEnvironment should not generate any events itself.";
 286
 287   ::testing::GTEST_FLAG(repeat) = 2;
 288   int ret_val = RUN_ALL_TESTS();
 289
 290 #ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
 291
 292   // The deprecated OnTestSuiteStart/OnTestCaseStart events are included
 293   const char* const expected_events[] = {"1st.OnTestProgramStart",
 294                                          "2nd.OnTestProgramStart",
 295                                          "3rd.OnTestProgramStart",
 296                                          "1st.OnTestIterationStart(0)",
 297                                          "2nd.OnTestIterationStart(0)",
 298                                          "3rd.OnTestIterationStart(0)",
 299                                          "1st.OnEnvironmentsSetUpStart",
 300                                          "2nd.OnEnvironmentsSetUpStart",
 301                                          "3rd.OnEnvironmentsSetUpStart",
 302                                          "Environment::SetUp",
 303                                          "3rd.OnEnvironmentsSetUpEnd",
 304                                          "2nd.OnEnvironmentsSetUpEnd",
 305                                          "1st.OnEnvironmentsSetUpEnd",
 306                                          "3rd.OnTestSuiteStart",
 307                                          "1st.OnTestCaseStart",
 308                                          "2nd.OnTestCaseStart",
 309                                          "ListenerTest::SetUpTestSuite",
 310                                          "1st.OnTestStart",
 311                                          "2nd.OnTestStart",
 312                                          "3rd.OnTestStart",
 313                                          "ListenerTest::SetUp",
 314                                          "ListenerTest::* Test Body",
 315                                          "1st.OnTestPartResult",
 316                                          "2nd.OnTestPartResult",
 317                                          "3rd.OnTestPartResult",
 318                                          "ListenerTest::TearDown",
 319                                          "3rd.OnTestEnd",
 320                                          "2nd.OnTestEnd",
 321                                          "1st.OnTestEnd",
 322                                          "1st.OnTestStart",
 323                                          "2nd.OnTestStart",
 324                                          "3rd.OnTestStart",
 325                                          "ListenerTest::SetUp",
 326                                          "ListenerTest::* Test Body",
 327                                          "1st.OnTestPartResult",
 328                                          "2nd.OnTestPartResult",
 329                                          "3rd.OnTestPartResult",
 330                                          "ListenerTest::TearDown",
 331                                          "3rd.OnTestEnd",
 332                                          "2nd.OnTestEnd",
 333                                          "1st.OnTestEnd",
 334                                          "ListenerTest::TearDownTestSuite",
 335                                          "3rd.OnTestSuiteEnd",
 336                                          "2nd.OnTestCaseEnd",
 337                                          "1st.OnTestCaseEnd",
 338                                          "1st.OnEnvironmentsTearDownStart",
 339                                          "2nd.OnEnvironmentsTearDownStart",
 340                                          "3rd.OnEnvironmentsTearDownStart",
 341                                          "Environment::TearDown",
 342                                          "3rd.OnEnvironmentsTearDownEnd",
 343                                          "2nd.OnEnvironmentsTearDownEnd",
 344                                          "1st.OnEnvironmentsTearDownEnd",
 345                                          "3rd.OnTestIterationEnd(0)",
 346                                          "2nd.OnTestIterationEnd(0)",
 347                                          "1st.OnTestIterationEnd(0)",
 348                                          "1st.OnTestIterationStart(1)",
 349                                          "2nd.OnTestIterationStart(1)",
 350                                          "3rd.OnTestIterationStart(1)",
 351                                          "1st.OnEnvironmentsSetUpStart",
 352                                          "2nd.OnEnvironmentsSetUpStart",
 353                                          "3rd.OnEnvironmentsSetUpStart",
 354                                          "Environment::SetUp",
 355                                          "3rd.OnEnvironmentsSetUpEnd",
 356                                          "2nd.OnEnvironmentsSetUpEnd",
 357                                          "1st.OnEnvironmentsSetUpEnd",
 358                                          "3rd.OnTestSuiteStart",
 359                                          "1st.OnTestCaseStart",
 360                                          "2nd.OnTestCaseStart",
 361                                          "ListenerTest::SetUpTestSuite",
 362                                          "1st.OnTestStart",
 363                                          "2nd.OnTestStart",
 364                                          "3rd.OnTestStart",
 365                                          "ListenerTest::SetUp",
 366                                          "ListenerTest::* Test Body",
 367                                          "1st.OnTestPartResult",
 368                                          "2nd.OnTestPartResult",
 369                                          "3rd.OnTestPartResult",
 370                                          "ListenerTest::TearDown",
 371                                          "3rd.OnTestEnd",
 372                                          "2nd.OnTestEnd",
 373                                          "1st.OnTestEnd",
 374                                          "1st.OnTestStart",
 375                                          "2nd.OnTestStart",
 376                                          "3rd.OnTestStart",
 377                                          "ListenerTest::SetUp",
 378                                          "ListenerTest::* Test Body",
 379                                          "1st.OnTestPartResult",
 380                                          "2nd.OnTestPartResult",
 381                                          "3rd.OnTestPartResult",
 382                                          "ListenerTest::TearDown",
 383                                          "3rd.OnTestEnd",
 384                                          "2nd.OnTestEnd",
 385                                          "1st.OnTestEnd",
 386                                          "ListenerTest::TearDownTestSuite",
 387                                          "3rd.OnTestSuiteEnd",
 388                                          "2nd.OnTestCaseEnd",
 389                                          "1st.OnTestCaseEnd",
 390                                          "1st.OnEnvironmentsTearDownStart",
 391                                          "2nd.OnEnvironmentsTearDownStart",
 392                                          "3rd.OnEnvironmentsTearDownStart",
 393                                          "Environment::TearDown",
 394                                          "3rd.OnEnvironmentsTearDownEnd",
 395                                          "2nd.OnEnvironmentsTearDownEnd",
 396                                          "1st.OnEnvironmentsTearDownEnd",
 397                                          "3rd.OnTestIterationEnd(1)",
 398                                          "2nd.OnTestIterationEnd(1)",
 399                                          "1st.OnTestIterationEnd(1)",
 400                                          "3rd.OnTestProgramEnd",
 401                                          "2nd.OnTestProgramEnd",
 402                                          "1st.OnTestProgramEnd"};
 403 #else
 404   const char* const expected_events[] = {"1st.OnTestProgramStart",
 405                                          "2nd.OnTestProgramStart",
 406                                          "3rd.OnTestProgramStart",
 407                                          "1st.OnTestIterationStart(0)",
 408                                          "2nd.OnTestIterationStart(0)",
 409                                          "3rd.OnTestIterationStart(0)",
 410                                          "1st.OnEnvironmentsSetUpStart",
 411                                          "2nd.OnEnvironmentsSetUpStart",
 412                                          "3rd.OnEnvironmentsSetUpStart",
 413                                          "Environment::SetUp",
 414                                          "3rd.OnEnvironmentsSetUpEnd",
 415                                          "2nd.OnEnvironmentsSetUpEnd",
 416                                          "1st.OnEnvironmentsSetUpEnd",
 417                                          "3rd.OnTestSuiteStart",
 418                                          "ListenerTest::SetUpTestSuite",
 419                                          "1st.OnTestStart",
 420                                          "2nd.OnTestStart",
 421                                          "3rd.OnTestStart",
 422                                          "ListenerTest::SetUp",
 423                                          "ListenerTest::* Test Body",
 424                                          "1st.OnTestPartResult",
 425                                          "2nd.OnTestPartResult",
 426                                          "3rd.OnTestPartResult",
 427                                          "ListenerTest::TearDown",
 428                                          "3rd.OnTestEnd",
 429                                          "2nd.OnTestEnd",
 430                                          "1st.OnTestEnd",
 431                                          "1st.OnTestStart",
 432                                          "2nd.OnTestStart",
 433                                          "3rd.OnTestStart",
 434                                          "ListenerTest::SetUp",
 435                                          "ListenerTest::* Test Body",
 436                                          "1st.OnTestPartResult",
 437                                          "2nd.OnTestPartResult",
 438                                          "3rd.OnTestPartResult",
 439                                          "ListenerTest::TearDown",
 440                                          "3rd.OnTestEnd",
 441                                          "2nd.OnTestEnd",
 442                                          "1st.OnTestEnd",
 443                                          "ListenerTest::TearDownTestSuite",
 444                                          "3rd.OnTestSuiteEnd",
 445                                          "1st.OnEnvironmentsTearDownStart",
 446                                          "2nd.OnEnvironmentsTearDownStart",
 447                                          "3rd.OnEnvironmentsTearDownStart",
 448                                          "Environment::TearDown",
 449                                          "3rd.OnEnvironmentsTearDownEnd",
 450                                          "2nd.OnEnvironmentsTearDownEnd",
 451                                          "1st.OnEnvironmentsTearDownEnd",
 452                                          "3rd.OnTestIterationEnd(0)",
 453                                          "2nd.OnTestIterationEnd(0)",
 454                                          "1st.OnTestIterationEnd(0)",
 455                                          "1st.OnTestIterationStart(1)",
 456                                          "2nd.OnTestIterationStart(1)",
 457                                          "3rd.OnTestIterationStart(1)",
 458                                          "1st.OnEnvironmentsSetUpStart",
 459                                          "2nd.OnEnvironmentsSetUpStart",
 460                                          "3rd.OnEnvironmentsSetUpStart",
 461                                          "Environment::SetUp",
 462                                          "3rd.OnEnvironmentsSetUpEnd",
 463                                          "2nd.OnEnvironmentsSetUpEnd",
 464                                          "1st.OnEnvironmentsSetUpEnd",
 465                                          "3rd.OnTestSuiteStart",
 466                                          "ListenerTest::SetUpTestSuite",
 467                                          "1st.OnTestStart",
 468                                          "2nd.OnTestStart",
 469                                          "3rd.OnTestStart",
 470                                          "ListenerTest::SetUp",
 471                                          "ListenerTest::* Test Body",
 472                                          "1st.OnTestPartResult",
 473                                          "2nd.OnTestPartResult",
 474                                          "3rd.OnTestPartResult",
 475                                          "ListenerTest::TearDown",
 476                                          "3rd.OnTestEnd",
 477                                          "2nd.OnTestEnd",
 478                                          "1st.OnTestEnd",
 479                                          "1st.OnTestStart",
 480                                          "2nd.OnTestStart",
 481                                          "3rd.OnTestStart",
 482                                          "ListenerTest::SetUp",
 483                                          "ListenerTest::* Test Body",
 484                                          "1st.OnTestPartResult",
 485                                          "2nd.OnTestPartResult",
 486                                          "3rd.OnTestPartResult",
 487                                          "ListenerTest::TearDown",
 488                                          "3rd.OnTestEnd",
 489                                          "2nd.OnTestEnd",
 490                                          "1st.OnTestEnd",
 491                                          "ListenerTest::TearDownTestSuite",
 492                                          "3rd.OnTestSuiteEnd",
 493                                          "1st.OnEnvironmentsTearDownStart",
 494                                          "2nd.OnEnvironmentsTearDownStart",
 495                                          "3rd.OnEnvironmentsTearDownStart",
 496                                          "Environment::TearDown",
 497                                          "3rd.OnEnvironmentsTearDownEnd",
 498                                          "2nd.OnEnvironmentsTearDownEnd",
 499                                          "1st.OnEnvironmentsTearDownEnd",
 500                                          "3rd.OnTestIterationEnd(1)",
 501                                          "2nd.OnTestIterationEnd(1)",
 502                                          "1st.OnTestIterationEnd(1)",
 503                                          "3rd.OnTestProgramEnd",
 504                                          "2nd.OnTestProgramEnd",
 505                                          "1st.OnTestProgramEnd"};
 506 #endif  // GTEST_REMOVE_LEGACY_TEST_CASEAPI_
 507
 508   VerifyResults(events,
 509                 expected_events,
 510                 sizeof(expected_events)/sizeof(expected_events[0]));
 511
 512   // We need to check manually for ad hoc test failures that happen after
 513   // RUN_ALL_TESTS finishes.
 514   if (UnitTest::GetInstance()->Failed())
 515     ret_val = 1;
 516
 517   return ret_val;
 518 }