ceph/src/spawn/test/dependency/googletest/googlemock/test/gmock-internal-utils_test.cc

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  29
  30
  31 // Google Mock - a framework for writing C++ mock classes.
  32 //
  33 // This file tests the internal utilities.
  34
  35 #include "gmock/internal/gmock-internal-utils.h"
  36
  37 #include <stdlib.h>
  38
  39 #include <map>
  40 #include <memory>
  41 #include <sstream>
  42 #include <string>
  43 #include <type_traits>
  44 #include <vector>
  45
  46 #include "gmock/gmock.h"
  47 #include "gmock/internal/gmock-port.h"
  48 #include "gtest/gtest-spi.h"
  49 #include "gtest/gtest.h"
  50
  51 // Indicates that this translation unit is part of Google Test's
  52 // implementation.  It must come before gtest-internal-inl.h is
  53 // included, or there will be a compiler error.  This trick is to
  54 // prevent a user from accidentally including gtest-internal-inl.h in
  55 // their code.
  56 #define GTEST_IMPLEMENTATION_ 1
  57 #include "src/gtest-internal-inl.h"
  58 #undef GTEST_IMPLEMENTATION_
  59
  60 #if GTEST_OS_CYGWIN
  61 # include <sys/types.h>  // For ssize_t. NOLINT
  62 #endif
  63
  64 namespace proto2 {
  65 class Message;
  66 }  // namespace proto2
  67
  68 namespace testing {
  69 namespace internal {
  70
  71 namespace {
  72
  73 TEST(JoinAsTupleTest, JoinsEmptyTuple) {
  74   EXPECT_EQ("", JoinAsTuple(Strings()));
  75 }
  76
  77 TEST(JoinAsTupleTest, JoinsOneTuple) {
  78   const char* fields[] = {"1"};
  79   EXPECT_EQ("1", JoinAsTuple(Strings(fields, fields + 1)));
  80 }
  81
  82 TEST(JoinAsTupleTest, JoinsTwoTuple) {
  83   const char* fields[] = {"1", "a"};
  84   EXPECT_EQ("(1, a)", JoinAsTuple(Strings(fields, fields + 2)));
  85 }
  86
  87 TEST(JoinAsTupleTest, JoinsTenTuple) {
  88   const char* fields[] = {"1", "2", "3", "4", "5", "6", "7", "8", "9", "10"};
  89   EXPECT_EQ("(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)",
  90             JoinAsTuple(Strings(fields, fields + 10)));
  91 }
  92
  93 TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameContainsNoWord) {
  94   EXPECT_EQ("", ConvertIdentifierNameToWords(""));
  95   EXPECT_EQ("", ConvertIdentifierNameToWords("_"));
  96   EXPECT_EQ("", ConvertIdentifierNameToWords("__"));
  97 }
  98
  99 TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameContainsDigits) {
 100   EXPECT_EQ("1", ConvertIdentifierNameToWords("_1"));
 101   EXPECT_EQ("2", ConvertIdentifierNameToWords("2_"));
 102   EXPECT_EQ("34", ConvertIdentifierNameToWords("_34_"));
 103   EXPECT_EQ("34 56", ConvertIdentifierNameToWords("_34_56"));
 104 }
 105
 106 TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameContainsCamelCaseWords) {
 107   EXPECT_EQ("a big word", ConvertIdentifierNameToWords("ABigWord"));
 108   EXPECT_EQ("foo bar", ConvertIdentifierNameToWords("FooBar"));
 109   EXPECT_EQ("foo", ConvertIdentifierNameToWords("Foo_"));
 110   EXPECT_EQ("foo bar", ConvertIdentifierNameToWords("_Foo_Bar_"));
 111   EXPECT_EQ("foo and bar", ConvertIdentifierNameToWords("_Foo__And_Bar"));
 112 }
 113
 114 TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameContains_SeparatedWords) {
 115   EXPECT_EQ("foo bar", ConvertIdentifierNameToWords("foo_bar"));
 116   EXPECT_EQ("foo", ConvertIdentifierNameToWords("_foo_"));
 117   EXPECT_EQ("foo bar", ConvertIdentifierNameToWords("_foo_bar_"));
 118   EXPECT_EQ("foo and bar", ConvertIdentifierNameToWords("_foo__and_bar"));
 119 }
 120
 121 TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameIsMixture) {
 122   EXPECT_EQ("foo bar 123", ConvertIdentifierNameToWords("Foo_bar123"));
 123   EXPECT_EQ("chapter 11 section 1",
 124             ConvertIdentifierNameToWords("_Chapter11Section_1_"));
 125 }
 126
 127 TEST(PointeeOfTest, WorksForSmartPointers) {
 128   CompileAssertTypesEqual<int, PointeeOf<std::unique_ptr<int> >::type>();
 129   CompileAssertTypesEqual<std::string,
 130                           PointeeOf<std::shared_ptr<std::string> >::type>();
 131 }
 132
 133 TEST(PointeeOfTest, WorksForRawPointers) {
 134   CompileAssertTypesEqual<int, PointeeOf<int*>::type>();
 135   CompileAssertTypesEqual<const char, PointeeOf<const char*>::type>();
 136   CompileAssertTypesEqual<void, PointeeOf<void*>::type>();
 137 }
 138
 139 TEST(GetRawPointerTest, WorksForSmartPointers) {
 140   const char* const raw_p1 = new const char('a');  // NOLINT
 141   const std::unique_ptr<const char> p1(raw_p1);
 142   EXPECT_EQ(raw_p1, GetRawPointer(p1));
 143   double* const raw_p2 = new double(2.5);  // NOLINT
 144   const std::shared_ptr<double> p2(raw_p2);
 145   EXPECT_EQ(raw_p2, GetRawPointer(p2));
 146 }
 147
 148 TEST(GetRawPointerTest, WorksForRawPointers) {
 149   int* p = nullptr;
 150   EXPECT_TRUE(nullptr == GetRawPointer(p));
 151   int n = 1;
 152   EXPECT_EQ(&n, GetRawPointer(&n));
 153 }
 154
 155 // Tests KindOf<T>.
 156
 157 class Base {};
 158 class Derived : public Base {};
 159
 160 TEST(KindOfTest, Bool) {
 161   EXPECT_EQ(kBool, GMOCK_KIND_OF_(bool));  // NOLINT
 162 }
 163
 164 TEST(KindOfTest, Integer) {
 165   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(char));  // NOLINT
 166   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(signed char));  // NOLINT
 167   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(unsigned char));  // NOLINT
 168   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(short));  // NOLINT
 169   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(unsigned short));  // NOLINT
 170   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(int));  // NOLINT
 171   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(unsigned int));  // NOLINT
 172   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(long));  // NOLINT
 173   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(unsigned long));  // NOLINT
 174   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(wchar_t));  // NOLINT
 175   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(Int64));  // NOLINT
 176   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(UInt64));  // NOLINT
 177   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(size_t));  // NOLINT
 178 #if GTEST_OS_LINUX || GTEST_OS_MAC || GTEST_OS_CYGWIN
 179   // ssize_t is not defined on Windows and possibly some other OSes.
 180   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(ssize_t));  // NOLINT
 181 #endif
 182 }
 183
 184 TEST(KindOfTest, FloatingPoint) {
 185   EXPECT_EQ(kFloatingPoint, GMOCK_KIND_OF_(float));  // NOLINT
 186   EXPECT_EQ(kFloatingPoint, GMOCK_KIND_OF_(double));  // NOLINT
 187   EXPECT_EQ(kFloatingPoint, GMOCK_KIND_OF_(long double));  // NOLINT
 188 }
 189
 190 TEST(KindOfTest, Other) {
 191   EXPECT_EQ(kOther, GMOCK_KIND_OF_(void*));  // NOLINT
 192   EXPECT_EQ(kOther, GMOCK_KIND_OF_(char**));  // NOLINT
 193   EXPECT_EQ(kOther, GMOCK_KIND_OF_(Base));  // NOLINT
 194 }
 195
 196 // Tests LosslessArithmeticConvertible<T, U>.
 197
 198 TEST(LosslessArithmeticConvertibleTest, BoolToBool) {
 199   EXPECT_TRUE((LosslessArithmeticConvertible<bool, bool>::value));
 200 }
 201
 202 TEST(LosslessArithmeticConvertibleTest, BoolToInteger) {
 203   EXPECT_TRUE((LosslessArithmeticConvertible<bool, char>::value));
 204   EXPECT_TRUE((LosslessArithmeticConvertible<bool, int>::value));
 205   EXPECT_TRUE(
 206       (LosslessArithmeticConvertible<bool, unsigned long>::value));  // NOLINT
 207 }
 208
 209 TEST(LosslessArithmeticConvertibleTest, BoolToFloatingPoint) {
 210   EXPECT_TRUE((LosslessArithmeticConvertible<bool, float>::value));
 211   EXPECT_TRUE((LosslessArithmeticConvertible<bool, double>::value));
 212 }
 213
 214 TEST(LosslessArithmeticConvertibleTest, IntegerToBool) {
 215   EXPECT_FALSE((LosslessArithmeticConvertible<unsigned char, bool>::value));
 216   EXPECT_FALSE((LosslessArithmeticConvertible<int, bool>::value));
 217 }
 218
 219 TEST(LosslessArithmeticConvertibleTest, IntegerToInteger) {
 220   // Unsigned => larger signed is fine.
 221   EXPECT_TRUE((LosslessArithmeticConvertible<unsigned char, int>::value));
 222
 223   // Unsigned => larger unsigned is fine.
 224   EXPECT_TRUE(
 225       (LosslessArithmeticConvertible<unsigned short, UInt64>::value)); // NOLINT
 226
 227   // Signed => unsigned is not fine.
 228   EXPECT_FALSE((LosslessArithmeticConvertible<short, UInt64>::value)); // NOLINT
 229   EXPECT_FALSE((LosslessArithmeticConvertible<
 230       signed char, unsigned int>::value));  // NOLINT
 231
 232   // Same size and same signedness: fine too.
 233   EXPECT_TRUE((LosslessArithmeticConvertible<
 234                unsigned char, unsigned char>::value));
 235   EXPECT_TRUE((LosslessArithmeticConvertible<int, int>::value));
 236   EXPECT_TRUE((LosslessArithmeticConvertible<wchar_t, wchar_t>::value));
 237   EXPECT_TRUE((LosslessArithmeticConvertible<
 238                unsigned long, unsigned long>::value));  // NOLINT
 239
 240   // Same size, different signedness: not fine.
 241   EXPECT_FALSE((LosslessArithmeticConvertible<
 242                 unsigned char, signed char>::value));
 243   EXPECT_FALSE((LosslessArithmeticConvertible<int, unsigned int>::value));
 244   EXPECT_FALSE((LosslessArithmeticConvertible<UInt64, Int64>::value));
 245
 246   // Larger size => smaller size is not fine.
 247   EXPECT_FALSE((LosslessArithmeticConvertible<long, char>::value));  // NOLINT
 248   EXPECT_FALSE((LosslessArithmeticConvertible<int, signed char>::value));
 249   EXPECT_FALSE((LosslessArithmeticConvertible<Int64, unsigned int>::value));
 250 }
 251
 252 TEST(LosslessArithmeticConvertibleTest, IntegerToFloatingPoint) {
 253   // Integers cannot be losslessly converted to floating-points, as
 254   // the format of the latter is implementation-defined.
 255   EXPECT_FALSE((LosslessArithmeticConvertible<char, float>::value));
 256   EXPECT_FALSE((LosslessArithmeticConvertible<int, double>::value));
 257   EXPECT_FALSE((LosslessArithmeticConvertible<
 258                 short, long double>::value));  // NOLINT
 259 }
 260
 261 TEST(LosslessArithmeticConvertibleTest, FloatingPointToBool) {
 262   EXPECT_FALSE((LosslessArithmeticConvertible<float, bool>::value));
 263   EXPECT_FALSE((LosslessArithmeticConvertible<double, bool>::value));
 264 }
 265
 266 TEST(LosslessArithmeticConvertibleTest, FloatingPointToInteger) {
 267   EXPECT_FALSE((LosslessArithmeticConvertible<float, long>::value));  // NOLINT
 268   EXPECT_FALSE((LosslessArithmeticConvertible<double, Int64>::value));
 269   EXPECT_FALSE((LosslessArithmeticConvertible<long double, int>::value));
 270 }
 271
 272 TEST(LosslessArithmeticConvertibleTest, FloatingPointToFloatingPoint) {
 273   // Smaller size => larger size is fine.
 274   EXPECT_TRUE((LosslessArithmeticConvertible<float, double>::value));
 275   EXPECT_TRUE((LosslessArithmeticConvertible<float, long double>::value));
 276   EXPECT_TRUE((LosslessArithmeticConvertible<double, long double>::value));
 277
 278   // Same size: fine.
 279   EXPECT_TRUE((LosslessArithmeticConvertible<float, float>::value));
 280   EXPECT_TRUE((LosslessArithmeticConvertible<double, double>::value));
 281
 282   // Larger size => smaller size is not fine.
 283   EXPECT_FALSE((LosslessArithmeticConvertible<double, float>::value));
 284   GTEST_INTENTIONAL_CONST_COND_PUSH_()
 285   if (sizeof(double) == sizeof(long double)) {  // NOLINT
 286   GTEST_INTENTIONAL_CONST_COND_POP_()
 287     // In some implementations (e.g. MSVC), double and long double
 288     // have the same size.
 289     EXPECT_TRUE((LosslessArithmeticConvertible<long double, double>::value));
 290   } else {
 291     EXPECT_FALSE((LosslessArithmeticConvertible<long double, double>::value));
 292   }
 293 }
 294
 295 // Tests the TupleMatches() template function.
 296
 297 TEST(TupleMatchesTest, WorksForSize0) {
 298   std::tuple<> matchers;
 299   std::tuple<> values;
 300
 301   EXPECT_TRUE(TupleMatches(matchers, values));
 302 }
 303
 304 TEST(TupleMatchesTest, WorksForSize1) {
 305   std::tuple<Matcher<int> > matchers(Eq(1));
 306   std::tuple<int> values1(1), values2(2);
 307
 308   EXPECT_TRUE(TupleMatches(matchers, values1));
 309   EXPECT_FALSE(TupleMatches(matchers, values2));
 310 }
 311
 312 TEST(TupleMatchesTest, WorksForSize2) {
 313   std::tuple<Matcher<int>, Matcher<char> > matchers(Eq(1), Eq('a'));
 314   std::tuple<int, char> values1(1, 'a'), values2(1, 'b'), values3(2, 'a'),
 315       values4(2, 'b');
 316
 317   EXPECT_TRUE(TupleMatches(matchers, values1));
 318   EXPECT_FALSE(TupleMatches(matchers, values2));
 319   EXPECT_FALSE(TupleMatches(matchers, values3));
 320   EXPECT_FALSE(TupleMatches(matchers, values4));
 321 }
 322
 323 TEST(TupleMatchesTest, WorksForSize5) {
 324   std::tuple<Matcher<int>, Matcher<char>, Matcher<bool>,
 325              Matcher<long>,  // NOLINT
 326              Matcher<std::string> >
 327       matchers(Eq(1), Eq('a'), Eq(true), Eq(2L), Eq("hi"));
 328   std::tuple<int, char, bool, long, std::string>  // NOLINT
 329       values1(1, 'a', true, 2L, "hi"), values2(1, 'a', true, 2L, "hello"),
 330       values3(2, 'a', true, 2L, "hi");
 331
 332   EXPECT_TRUE(TupleMatches(matchers, values1));
 333   EXPECT_FALSE(TupleMatches(matchers, values2));
 334   EXPECT_FALSE(TupleMatches(matchers, values3));
 335 }
 336
 337 // Tests that Assert(true, ...) succeeds.
 338 TEST(AssertTest, SucceedsOnTrue) {
 339   Assert(true, __FILE__, __LINE__, "This should succeed.");
 340   Assert(true, __FILE__, __LINE__);  // This should succeed too.
 341 }
 342
 343 // Tests that Assert(false, ...) generates a fatal failure.
 344 TEST(AssertTest, FailsFatallyOnFalse) {
 345   EXPECT_DEATH_IF_SUPPORTED({
 346     Assert(false, __FILE__, __LINE__, "This should fail.");
 347   }, "");
 348
 349   EXPECT_DEATH_IF_SUPPORTED({
 350     Assert(false, __FILE__, __LINE__);
 351   }, "");
 352 }
 353
 354 // Tests that Expect(true, ...) succeeds.
 355 TEST(ExpectTest, SucceedsOnTrue) {
 356   Expect(true, __FILE__, __LINE__, "This should succeed.");
 357   Expect(true, __FILE__, __LINE__);  // This should succeed too.
 358 }
 359
 360 // Tests that Expect(false, ...) generates a non-fatal failure.
 361 TEST(ExpectTest, FailsNonfatallyOnFalse) {
 362   EXPECT_NONFATAL_FAILURE({  // NOLINT
 363     Expect(false, __FILE__, __LINE__, "This should fail.");
 364   }, "This should fail");
 365
 366   EXPECT_NONFATAL_FAILURE({  // NOLINT
 367     Expect(false, __FILE__, __LINE__);
 368   }, "Expectation failed");
 369 }
 370
 371 // Tests LogIsVisible().
 372
 373 class LogIsVisibleTest : public ::testing::Test {
 374  protected:
 375   void SetUp() override { original_verbose_ = GMOCK_FLAG(verbose); }
 376
 377   void TearDown() override { GMOCK_FLAG(verbose) = original_verbose_; }
 378
 379   std::string original_verbose_;
 380 };
 381
 382 TEST_F(LogIsVisibleTest, AlwaysReturnsTrueIfVerbosityIsInfo) {
 383   GMOCK_FLAG(verbose) = kInfoVerbosity;
 384   EXPECT_TRUE(LogIsVisible(kInfo));
 385   EXPECT_TRUE(LogIsVisible(kWarning));
 386 }
 387
 388 TEST_F(LogIsVisibleTest, AlwaysReturnsFalseIfVerbosityIsError) {
 389   GMOCK_FLAG(verbose) = kErrorVerbosity;
 390   EXPECT_FALSE(LogIsVisible(kInfo));
 391   EXPECT_FALSE(LogIsVisible(kWarning));
 392 }
 393
 394 TEST_F(LogIsVisibleTest, WorksWhenVerbosityIsWarning) {
 395   GMOCK_FLAG(verbose) = kWarningVerbosity;
 396   EXPECT_FALSE(LogIsVisible(kInfo));
 397   EXPECT_TRUE(LogIsVisible(kWarning));
 398 }
 399
 400 #if GTEST_HAS_STREAM_REDIRECTION
 401
 402 // Tests the Log() function.
 403
 404 // Verifies that Log() behaves correctly for the given verbosity level
 405 // and log severity.
 406 void TestLogWithSeverity(const std::string& verbosity, LogSeverity severity,
 407                          bool should_print) {
 408   const std::string old_flag = GMOCK_FLAG(verbose);
 409   GMOCK_FLAG(verbose) = verbosity;
 410   CaptureStdout();
 411   Log(severity, "Test log.\n", 0);
 412   if (should_print) {
 413     EXPECT_THAT(GetCapturedStdout().c_str(),
 414                 ContainsRegex(
 415                     severity == kWarning ?
 416                     "^\nGMOCK WARNING:\nTest log\\.\nStack trace:\n" :
 417                     "^\nTest log\\.\nStack trace:\n"));
 418   } else {
 419     EXPECT_STREQ("", GetCapturedStdout().c_str());
 420   }
 421   GMOCK_FLAG(verbose) = old_flag;
 422 }
 423
 424 // Tests that when the stack_frames_to_skip parameter is negative,
 425 // Log() doesn't include the stack trace in the output.
 426 TEST(LogTest, NoStackTraceWhenStackFramesToSkipIsNegative) {
 427   const std::string saved_flag = GMOCK_FLAG(verbose);
 428   GMOCK_FLAG(verbose) = kInfoVerbosity;
 429   CaptureStdout();
 430   Log(kInfo, "Test log.\n", -1);
 431   EXPECT_STREQ("\nTest log.\n", GetCapturedStdout().c_str());
 432   GMOCK_FLAG(verbose) = saved_flag;
 433 }
 434
 435 struct MockStackTraceGetter : testing::internal::OsStackTraceGetterInterface {
 436   std::string CurrentStackTrace(int max_depth, int skip_count) override {
 437     return (testing::Message() << max_depth << "::" << skip_count << "\n")
 438         .GetString();
 439   }
 440   void UponLeavingGTest() override {}
 441 };
 442
 443 // Tests that in opt mode, a positive stack_frames_to_skip argument is
 444 // treated as 0.
 445 TEST(LogTest, NoSkippingStackFrameInOptMode) {
 446   MockStackTraceGetter* mock_os_stack_trace_getter = new MockStackTraceGetter;
 447   GetUnitTestImpl()->set_os_stack_trace_getter(mock_os_stack_trace_getter);
 448
 449   CaptureStdout();
 450   Log(kWarning, "Test log.\n", 100);
 451   const std::string log = GetCapturedStdout();
 452
 453   std::string expected_trace =
 454       (testing::Message() << GTEST_FLAG(stack_trace_depth) << "::").GetString();
 455   std::string expected_message =
 456       "\nGMOCK WARNING:\n"
 457       "Test log.\n"
 458       "Stack trace:\n" +
 459       expected_trace;
 460   EXPECT_THAT(log, HasSubstr(expected_message));
 461   int skip_count = atoi(log.substr(expected_message.size()).c_str());
 462
 463 # if defined(NDEBUG)
 464   // In opt mode, no stack frame should be skipped.
 465   const int expected_skip_count = 0;
 466 # else
 467   // In dbg mode, the stack frames should be skipped.
 468   const int expected_skip_count = 100;
 469 # endif
 470
 471   // Note that each inner implementation layer will +1 the number to remove
 472   // itself from the trace. This means that the value is a little higher than
 473   // expected, but close enough.
 474   EXPECT_THAT(skip_count,
 475               AllOf(Ge(expected_skip_count), Le(expected_skip_count + 10)));
 476
 477   // Restores the default OS stack trace getter.
 478   GetUnitTestImpl()->set_os_stack_trace_getter(nullptr);
 479 }
 480
 481 // Tests that all logs are printed when the value of the
 482 // --gmock_verbose flag is "info".
 483 TEST(LogTest, AllLogsArePrintedWhenVerbosityIsInfo) {
 484   TestLogWithSeverity(kInfoVerbosity, kInfo, true);
 485   TestLogWithSeverity(kInfoVerbosity, kWarning, true);
 486 }
 487
 488 // Tests that only warnings are printed when the value of the
 489 // --gmock_verbose flag is "warning".
 490 TEST(LogTest, OnlyWarningsArePrintedWhenVerbosityIsWarning) {
 491   TestLogWithSeverity(kWarningVerbosity, kInfo, false);
 492   TestLogWithSeverity(kWarningVerbosity, kWarning, true);
 493 }
 494
 495 // Tests that no logs are printed when the value of the
 496 // --gmock_verbose flag is "error".
 497 TEST(LogTest, NoLogsArePrintedWhenVerbosityIsError) {
 498   TestLogWithSeverity(kErrorVerbosity, kInfo, false);
 499   TestLogWithSeverity(kErrorVerbosity, kWarning, false);
 500 }
 501
 502 // Tests that only warnings are printed when the value of the
 503 // --gmock_verbose flag is invalid.
 504 TEST(LogTest, OnlyWarningsArePrintedWhenVerbosityIsInvalid) {
 505   TestLogWithSeverity("invalid", kInfo, false);
 506   TestLogWithSeverity("invalid", kWarning, true);
 507 }
 508
 509 #endif  // GTEST_HAS_STREAM_REDIRECTION
 510
 511 TEST(TypeTraitsTest, remove_reference) {
 512   EXPECT_TRUE((std::is_same<char, remove_reference<char&>::type>::value));
 513   EXPECT_TRUE(
 514       (std::is_same<const int, remove_reference<const int&>::type>::value));
 515   EXPECT_TRUE((std::is_same<int, remove_reference<int>::type>::value));
 516   EXPECT_TRUE((std::is_same<double*, remove_reference<double*>::type>::value));
 517 }
 518
 519 #if GTEST_HAS_STREAM_REDIRECTION
 520
 521 // Verifies that Log() behaves correctly for the given verbosity level
 522 // and log severity.
 523 std::string GrabOutput(void(*logger)(), const char* verbosity) {
 524   const std::string saved_flag = GMOCK_FLAG(verbose);
 525   GMOCK_FLAG(verbose) = verbosity;
 526   CaptureStdout();
 527   logger();
 528   GMOCK_FLAG(verbose) = saved_flag;
 529   return GetCapturedStdout();
 530 }
 531
 532 class DummyMock {
 533  public:
 534   MOCK_METHOD0(TestMethod, void());
 535   MOCK_METHOD1(TestMethodArg, void(int dummy));
 536 };
 537
 538 void ExpectCallLogger() {
 539   DummyMock mock;
 540   EXPECT_CALL(mock, TestMethod());
 541   mock.TestMethod();
 542 }
 543
 544 // Verifies that EXPECT_CALL logs if the --gmock_verbose flag is set to "info".
 545 TEST(ExpectCallTest, LogsWhenVerbosityIsInfo) {
 546   EXPECT_THAT(std::string(GrabOutput(ExpectCallLogger, kInfoVerbosity)),
 547               HasSubstr("EXPECT_CALL(mock, TestMethod())"));
 548 }
 549
 550 // Verifies that EXPECT_CALL doesn't log
 551 // if the --gmock_verbose flag is set to "warning".
 552 TEST(ExpectCallTest, DoesNotLogWhenVerbosityIsWarning) {
 553   EXPECT_STREQ("", GrabOutput(ExpectCallLogger, kWarningVerbosity).c_str());
 554 }
 555
 556 // Verifies that EXPECT_CALL doesn't log
 557 // if the --gmock_verbose flag is set to "error".
 558 TEST(ExpectCallTest,  DoesNotLogWhenVerbosityIsError) {
 559   EXPECT_STREQ("", GrabOutput(ExpectCallLogger, kErrorVerbosity).c_str());
 560 }
 561
 562 void OnCallLogger() {
 563   DummyMock mock;
 564   ON_CALL(mock, TestMethod());
 565 }
 566
 567 // Verifies that ON_CALL logs if the --gmock_verbose flag is set to "info".
 568 TEST(OnCallTest, LogsWhenVerbosityIsInfo) {
 569   EXPECT_THAT(std::string(GrabOutput(OnCallLogger, kInfoVerbosity)),
 570               HasSubstr("ON_CALL(mock, TestMethod())"));
 571 }
 572
 573 // Verifies that ON_CALL doesn't log
 574 // if the --gmock_verbose flag is set to "warning".
 575 TEST(OnCallTest, DoesNotLogWhenVerbosityIsWarning) {
 576   EXPECT_STREQ("", GrabOutput(OnCallLogger, kWarningVerbosity).c_str());
 577 }
 578
 579 // Verifies that ON_CALL doesn't log if
 580 // the --gmock_verbose flag is set to "error".
 581 TEST(OnCallTest, DoesNotLogWhenVerbosityIsError) {
 582   EXPECT_STREQ("", GrabOutput(OnCallLogger, kErrorVerbosity).c_str());
 583 }
 584
 585 void OnCallAnyArgumentLogger() {
 586   DummyMock mock;
 587   ON_CALL(mock, TestMethodArg(_));
 588 }
 589
 590 // Verifies that ON_CALL prints provided _ argument.
 591 TEST(OnCallTest, LogsAnythingArgument) {
 592   EXPECT_THAT(std::string(GrabOutput(OnCallAnyArgumentLogger, kInfoVerbosity)),
 593               HasSubstr("ON_CALL(mock, TestMethodArg(_)"));
 594 }
 595
 596 #endif  // GTEST_HAS_STREAM_REDIRECTION
 597
 598 // Tests StlContainerView.
 599
 600 TEST(StlContainerViewTest, WorksForStlContainer) {
 601   StaticAssertTypeEq<std::vector<int>,
 602       StlContainerView<std::vector<int> >::type>();
 603   StaticAssertTypeEq<const std::vector<double>&,
 604       StlContainerView<std::vector<double> >::const_reference>();
 605
 606   typedef std::vector<char> Chars;
 607   Chars v1;
 608   const Chars& v2(StlContainerView<Chars>::ConstReference(v1));
 609   EXPECT_EQ(&v1, &v2);
 610
 611   v1.push_back('a');
 612   Chars v3 = StlContainerView<Chars>::Copy(v1);
 613   EXPECT_THAT(v3, Eq(v3));
 614 }
 615
 616 TEST(StlContainerViewTest, WorksForStaticNativeArray) {
 617   StaticAssertTypeEq<NativeArray<int>,
 618       StlContainerView<int[3]>::type>();
 619   StaticAssertTypeEq<NativeArray<double>,
 620       StlContainerView<const double[4]>::type>();
 621   StaticAssertTypeEq<NativeArray<char[3]>,
 622       StlContainerView<const char[2][3]>::type>();
 623
 624   StaticAssertTypeEq<const NativeArray<int>,
 625       StlContainerView<int[2]>::const_reference>();
 626
 627   int a1[3] = { 0, 1, 2 };
 628   NativeArray<int> a2 = StlContainerView<int[3]>::ConstReference(a1);
 629   EXPECT_EQ(3U, a2.size());
 630   EXPECT_EQ(a1, a2.begin());
 631
 632   const NativeArray<int> a3 = StlContainerView<int[3]>::Copy(a1);
 633   ASSERT_EQ(3U, a3.size());
 634   EXPECT_EQ(0, a3.begin()[0]);
 635   EXPECT_EQ(1, a3.begin()[1]);
 636   EXPECT_EQ(2, a3.begin()[2]);
 637
 638   // Makes sure a1 and a3 aren't aliases.
 639   a1[0] = 3;
 640   EXPECT_EQ(0, a3.begin()[0]);
 641 }
 642
 643 TEST(StlContainerViewTest, WorksForDynamicNativeArray) {
 644   StaticAssertTypeEq<NativeArray<int>,
 645                      StlContainerView<std::tuple<const int*, size_t> >::type>();
 646   StaticAssertTypeEq<
 647       NativeArray<double>,
 648       StlContainerView<std::tuple<std::shared_ptr<double>, int> >::type>();
 649
 650   StaticAssertTypeEq<
 651       const NativeArray<int>,
 652       StlContainerView<std::tuple<const int*, int> >::const_reference>();
 653
 654   int a1[3] = { 0, 1, 2 };
 655   const int* const p1 = a1;
 656   NativeArray<int> a2 =
 657       StlContainerView<std::tuple<const int*, int> >::ConstReference(
 658           std::make_tuple(p1, 3));
 659   EXPECT_EQ(3U, a2.size());
 660   EXPECT_EQ(a1, a2.begin());
 661
 662   const NativeArray<int> a3 = StlContainerView<std::tuple<int*, size_t> >::Copy(
 663       std::make_tuple(static_cast<int*>(a1), 3));
 664   ASSERT_EQ(3U, a3.size());
 665   EXPECT_EQ(0, a3.begin()[0]);
 666   EXPECT_EQ(1, a3.begin()[1]);
 667   EXPECT_EQ(2, a3.begin()[2]);
 668
 669   // Makes sure a1 and a3 aren't aliases.
 670   a1[0] = 3;
 671   EXPECT_EQ(0, a3.begin()[0]);
 672 }
 673
 674 // Tests the Function template struct.
 675
 676 TEST(FunctionTest, Nullary) {
 677   typedef Function<int()> F;  // NOLINT
 678   EXPECT_EQ(0u, F::ArgumentCount);
 679   CompileAssertTypesEqual<int, F::Result>();
 680   CompileAssertTypesEqual<std::tuple<>, F::ArgumentTuple>();
 681   CompileAssertTypesEqual<std::tuple<>, F::ArgumentMatcherTuple>();
 682   CompileAssertTypesEqual<void(), F::MakeResultVoid>();
 683   CompileAssertTypesEqual<IgnoredValue(), F::MakeResultIgnoredValue>();
 684 }
 685
 686 TEST(FunctionTest, Unary) {
 687   typedef Function<int(bool)> F;  // NOLINT
 688   EXPECT_EQ(1u, F::ArgumentCount);
 689   CompileAssertTypesEqual<int, F::Result>();
 690   CompileAssertTypesEqual<bool, F::Arg<0>::type>();
 691   CompileAssertTypesEqual<std::tuple<bool>, F::ArgumentTuple>();
 692   CompileAssertTypesEqual<std::tuple<Matcher<bool> >,
 693                           F::ArgumentMatcherTuple>();
 694   CompileAssertTypesEqual<void(bool), F::MakeResultVoid>();  // NOLINT
 695   CompileAssertTypesEqual<IgnoredValue(bool),  // NOLINT
 696       F::MakeResultIgnoredValue>();
 697 }
 698
 699 TEST(FunctionTest, Binary) {
 700   typedef Function<int(bool, const long&)> F;  // NOLINT
 701   EXPECT_EQ(2u, F::ArgumentCount);
 702   CompileAssertTypesEqual<int, F::Result>();
 703   CompileAssertTypesEqual<bool, F::Arg<0>::type>();
 704   CompileAssertTypesEqual<const long&, F::Arg<1>::type>();  // NOLINT
 705   CompileAssertTypesEqual<std::tuple<bool, const long&>,  // NOLINT
 706                           F::ArgumentTuple>();
 707   CompileAssertTypesEqual<
 708       std::tuple<Matcher<bool>, Matcher<const long&> >,  // NOLINT
 709       F::ArgumentMatcherTuple>();
 710   CompileAssertTypesEqual<void(bool, const long&), F::MakeResultVoid>();  // NOLINT
 711   CompileAssertTypesEqual<IgnoredValue(bool, const long&),  // NOLINT
 712       F::MakeResultIgnoredValue>();
 713 }
 714
 715 TEST(FunctionTest, LongArgumentList) {
 716   typedef Function<char(bool, int, char*, int&, const long&)> F;  // NOLINT
 717   EXPECT_EQ(5u, F::ArgumentCount);
 718   CompileAssertTypesEqual<char, F::Result>();
 719   CompileAssertTypesEqual<bool, F::Arg<0>::type>();
 720   CompileAssertTypesEqual<int, F::Arg<1>::type>();
 721   CompileAssertTypesEqual<char*, F::Arg<2>::type>();
 722   CompileAssertTypesEqual<int&, F::Arg<3>::type>();
 723   CompileAssertTypesEqual<const long&, F::Arg<4>::type>();  // NOLINT
 724   CompileAssertTypesEqual<
 725       std::tuple<bool, int, char*, int&, const long&>,  // NOLINT
 726       F::ArgumentTuple>();
 727   CompileAssertTypesEqual<
 728       std::tuple<Matcher<bool>, Matcher<int>, Matcher<char*>, Matcher<int&>,
 729                  Matcher<const long&> >,  // NOLINT
 730       F::ArgumentMatcherTuple>();
 731   CompileAssertTypesEqual<void(bool, int, char*, int&, const long&),  // NOLINT
 732                           F::MakeResultVoid>();
 733   CompileAssertTypesEqual<
 734       IgnoredValue(bool, int, char*, int&, const long&),  // NOLINT
 735       F::MakeResultIgnoredValue>();
 736 }
 737
 738 }  // namespace
 739 }  // namespace internal
 740 }  // namespace testing