ut/gtest/googlemock/test/gmock-internal-utils_test.cc

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  29 //
  30 // Author: wan@google.com (Zhanyong Wan)
  31
  32 // Google Mock - a framework for writing C++ mock classes.
  33 //
  34 // This file tests the internal utilities.
  35
  36 #include "gmock/internal/gmock-internal-utils.h"
  37 #include <stdlib.h>
  38 #include <map>
  39 #include <memory>
  40 #include <string>
  41 #include <sstream>
  42 #include <vector>
  43 #include "gmock/gmock.h"
  44 #include "gmock/internal/gmock-port.h"
  45 #include "gtest/gtest.h"
  46 #include "gtest/gtest-spi.h"
  47
  48 // Indicates that this translation unit is part of Google Test's
  49 // implementation.  It must come before gtest-internal-inl.h is
  50 // included, or there will be a compiler error.  This trick is to
  51 // prevent a user from accidentally including gtest-internal-inl.h in
  52 // his code.
  53 #define GTEST_IMPLEMENTATION_ 1
  54 #include "src/gtest-internal-inl.h"
  55 #undef GTEST_IMPLEMENTATION_
  56
  57 #if GTEST_OS_CYGWIN
  58 # include <sys/types.h>  // For ssize_t. NOLINT
  59 #endif
  60
  61 class ProtocolMessage;
  62
  63 namespace proto2 {
  64 class Message;
  65 }  // namespace proto2
  66
  67 namespace testing {
  68 namespace internal {
  69
  70 namespace {
  71
  72 TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameContainsNoWord) {
  73   EXPECT_EQ("", ConvertIdentifierNameToWords(""));
  74   EXPECT_EQ("", ConvertIdentifierNameToWords("_"));
  75   EXPECT_EQ("", ConvertIdentifierNameToWords("__"));
  76 }
  77
  78 TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameContainsDigits) {
  79   EXPECT_EQ("1", ConvertIdentifierNameToWords("_1"));
  80   EXPECT_EQ("2", ConvertIdentifierNameToWords("2_"));
  81   EXPECT_EQ("34", ConvertIdentifierNameToWords("_34_"));
  82   EXPECT_EQ("34 56", ConvertIdentifierNameToWords("_34_56"));
  83 }
  84
  85 TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameContainsCamelCaseWords) {
  86   EXPECT_EQ("a big word", ConvertIdentifierNameToWords("ABigWord"));
  87   EXPECT_EQ("foo bar", ConvertIdentifierNameToWords("FooBar"));
  88   EXPECT_EQ("foo", ConvertIdentifierNameToWords("Foo_"));
  89   EXPECT_EQ("foo bar", ConvertIdentifierNameToWords("_Foo_Bar_"));
  90   EXPECT_EQ("foo and bar", ConvertIdentifierNameToWords("_Foo__And_Bar"));
  91 }
  92
  93 TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameContains_SeparatedWords) {
  94   EXPECT_EQ("foo bar", ConvertIdentifierNameToWords("foo_bar"));
  95   EXPECT_EQ("foo", ConvertIdentifierNameToWords("_foo_"));
  96   EXPECT_EQ("foo bar", ConvertIdentifierNameToWords("_foo_bar_"));
  97   EXPECT_EQ("foo and bar", ConvertIdentifierNameToWords("_foo__and_bar"));
  98 }
  99
 100 TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameIsMixture) {
 101   EXPECT_EQ("foo bar 123", ConvertIdentifierNameToWords("Foo_bar123"));
 102   EXPECT_EQ("chapter 11 section 1",
 103             ConvertIdentifierNameToWords("_Chapter11Section_1_"));
 104 }
 105
 106 TEST(PointeeOfTest, WorksForSmartPointers) {
 107   CompileAssertTypesEqual<const char,
 108       PointeeOf<internal::linked_ptr<const char> >::type>();
 109 #if GTEST_HAS_STD_UNIQUE_PTR_
 110   CompileAssertTypesEqual<int, PointeeOf<std::unique_ptr<int> >::type>();
 111 #endif  // GTEST_HAS_STD_UNIQUE_PTR_
 112 #if GTEST_HAS_STD_SHARED_PTR_
 113   CompileAssertTypesEqual<std::string,
 114                           PointeeOf<std::shared_ptr<std::string> >::type>();
 115 #endif  // GTEST_HAS_STD_SHARED_PTR_
 116 }
 117
 118 TEST(PointeeOfTest, WorksForRawPointers) {
 119   CompileAssertTypesEqual<int, PointeeOf<int*>::type>();
 120   CompileAssertTypesEqual<const char, PointeeOf<const char*>::type>();
 121   CompileAssertTypesEqual<void, PointeeOf<void*>::type>();
 122 }
 123
 124 TEST(GetRawPointerTest, WorksForSmartPointers) {
 125 #if GTEST_HAS_STD_UNIQUE_PTR_
 126   const char* const raw_p1 = new const char('a');  // NOLINT
 127   const std::unique_ptr<const char> p1(raw_p1);
 128   EXPECT_EQ(raw_p1, GetRawPointer(p1));
 129 #endif  // GTEST_HAS_STD_UNIQUE_PTR_
 130 #if GTEST_HAS_STD_SHARED_PTR_
 131   double* const raw_p2 = new double(2.5);  // NOLINT
 132   const std::shared_ptr<double> p2(raw_p2);
 133   EXPECT_EQ(raw_p2, GetRawPointer(p2));
 134 #endif  // GTEST_HAS_STD_SHARED_PTR_
 135
 136   const char* const raw_p4 = new const char('a');  // NOLINT
 137   const internal::linked_ptr<const char> p4(raw_p4);
 138   EXPECT_EQ(raw_p4, GetRawPointer(p4));
 139 }
 140
 141 TEST(GetRawPointerTest, WorksForRawPointers) {
 142   int* p = NULL;
 143   // Don't use EXPECT_EQ as no NULL-testing magic on Symbian.
 144   EXPECT_TRUE(NULL == GetRawPointer(p));
 145   int n = 1;
 146   EXPECT_EQ(&n, GetRawPointer(&n));
 147 }
 148
 149 // Tests KindOf<T>.
 150
 151 class Base {};
 152 class Derived : public Base {};
 153
 154 TEST(KindOfTest, Bool) {
 155   EXPECT_EQ(kBool, GMOCK_KIND_OF_(bool));  // NOLINT
 156 }
 157
 158 TEST(KindOfTest, Integer) {
 159   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(char));  // NOLINT
 160   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(signed char));  // NOLINT
 161   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(unsigned char));  // NOLINT
 162   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(short));  // NOLINT
 163   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(unsigned short));  // NOLINT
 164   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(int));  // NOLINT
 165   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(unsigned int));  // NOLINT
 166   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(long));  // NOLINT
 167   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(unsigned long));  // NOLINT
 168   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(wchar_t));  // NOLINT
 169   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(Int64));  // NOLINT
 170   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(UInt64));  // NOLINT
 171   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(size_t));  // NOLINT
 172 #if GTEST_OS_LINUX || GTEST_OS_MAC || GTEST_OS_CYGWIN
 173   // ssize_t is not defined on Windows and possibly some other OSes.
 174   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(ssize_t));  // NOLINT
 175 #endif
 176 }
 177
 178 TEST(KindOfTest, FloatingPoint) {
 179   EXPECT_EQ(kFloatingPoint, GMOCK_KIND_OF_(float));  // NOLINT
 180   EXPECT_EQ(kFloatingPoint, GMOCK_KIND_OF_(double));  // NOLINT
 181   EXPECT_EQ(kFloatingPoint, GMOCK_KIND_OF_(long double));  // NOLINT
 182 }
 183
 184 TEST(KindOfTest, Other) {
 185   EXPECT_EQ(kOther, GMOCK_KIND_OF_(void*));  // NOLINT
 186   EXPECT_EQ(kOther, GMOCK_KIND_OF_(char**));  // NOLINT
 187   EXPECT_EQ(kOther, GMOCK_KIND_OF_(Base));  // NOLINT
 188 }
 189
 190 // Tests LosslessArithmeticConvertible<T, U>.
 191
 192 TEST(LosslessArithmeticConvertibleTest, BoolToBool) {
 193   EXPECT_TRUE((LosslessArithmeticConvertible<bool, bool>::value));
 194 }
 195
 196 TEST(LosslessArithmeticConvertibleTest, BoolToInteger) {
 197   EXPECT_TRUE((LosslessArithmeticConvertible<bool, char>::value));
 198   EXPECT_TRUE((LosslessArithmeticConvertible<bool, int>::value));
 199   EXPECT_TRUE(
 200       (LosslessArithmeticConvertible<bool, unsigned long>::value));  // NOLINT
 201 }
 202
 203 TEST(LosslessArithmeticConvertibleTest, BoolToFloatingPoint) {
 204   EXPECT_TRUE((LosslessArithmeticConvertible<bool, float>::value));
 205   EXPECT_TRUE((LosslessArithmeticConvertible<bool, double>::value));
 206 }
 207
 208 TEST(LosslessArithmeticConvertibleTest, IntegerToBool) {
 209   EXPECT_FALSE((LosslessArithmeticConvertible<unsigned char, bool>::value));
 210   EXPECT_FALSE((LosslessArithmeticConvertible<int, bool>::value));
 211 }
 212
 213 TEST(LosslessArithmeticConvertibleTest, IntegerToInteger) {
 214   // Unsigned => larger signed is fine.
 215   EXPECT_TRUE((LosslessArithmeticConvertible<unsigned char, int>::value));
 216
 217   // Unsigned => larger unsigned is fine.
 218   EXPECT_TRUE(
 219       (LosslessArithmeticConvertible<unsigned short, UInt64>::value)); // NOLINT
 220
 221   // Signed => unsigned is not fine.
 222   EXPECT_FALSE((LosslessArithmeticConvertible<short, UInt64>::value)); // NOLINT
 223   EXPECT_FALSE((LosslessArithmeticConvertible<
 224       signed char, unsigned int>::value));  // NOLINT
 225
 226   // Same size and same signedness: fine too.
 227   EXPECT_TRUE((LosslessArithmeticConvertible<
 228                unsigned char, unsigned char>::value));
 229   EXPECT_TRUE((LosslessArithmeticConvertible<int, int>::value));
 230   EXPECT_TRUE((LosslessArithmeticConvertible<wchar_t, wchar_t>::value));
 231   EXPECT_TRUE((LosslessArithmeticConvertible<
 232                unsigned long, unsigned long>::value));  // NOLINT
 233
 234   // Same size, different signedness: not fine.
 235   EXPECT_FALSE((LosslessArithmeticConvertible<
 236                 unsigned char, signed char>::value));
 237   EXPECT_FALSE((LosslessArithmeticConvertible<int, unsigned int>::value));
 238   EXPECT_FALSE((LosslessArithmeticConvertible<UInt64, Int64>::value));
 239
 240   // Larger size => smaller size is not fine.
 241   EXPECT_FALSE((LosslessArithmeticConvertible<long, char>::value));  // NOLINT
 242   EXPECT_FALSE((LosslessArithmeticConvertible<int, signed char>::value));
 243   EXPECT_FALSE((LosslessArithmeticConvertible<Int64, unsigned int>::value));
 244 }
 245
 246 TEST(LosslessArithmeticConvertibleTest, IntegerToFloatingPoint) {
 247   // Integers cannot be losslessly converted to floating-points, as
 248   // the format of the latter is implementation-defined.
 249   EXPECT_FALSE((LosslessArithmeticConvertible<char, float>::value));
 250   EXPECT_FALSE((LosslessArithmeticConvertible<int, double>::value));
 251   EXPECT_FALSE((LosslessArithmeticConvertible<
 252                 short, long double>::value));  // NOLINT
 253 }
 254
 255 TEST(LosslessArithmeticConvertibleTest, FloatingPointToBool) {
 256   EXPECT_FALSE((LosslessArithmeticConvertible<float, bool>::value));
 257   EXPECT_FALSE((LosslessArithmeticConvertible<double, bool>::value));
 258 }
 259
 260 TEST(LosslessArithmeticConvertibleTest, FloatingPointToInteger) {
 261   EXPECT_FALSE((LosslessArithmeticConvertible<float, long>::value));  // NOLINT
 262   EXPECT_FALSE((LosslessArithmeticConvertible<double, Int64>::value));
 263   EXPECT_FALSE((LosslessArithmeticConvertible<long double, int>::value));
 264 }
 265
 266 TEST(LosslessArithmeticConvertibleTest, FloatingPointToFloatingPoint) {
 267   // Smaller size => larger size is fine.
 268   EXPECT_TRUE((LosslessArithmeticConvertible<float, double>::value));
 269   EXPECT_TRUE((LosslessArithmeticConvertible<float, long double>::value));
 270   EXPECT_TRUE((LosslessArithmeticConvertible<double, long double>::value));
 271
 272   // Same size: fine.
 273   EXPECT_TRUE((LosslessArithmeticConvertible<float, float>::value));
 274   EXPECT_TRUE((LosslessArithmeticConvertible<double, double>::value));
 275
 276   // Larger size => smaller size is not fine.
 277   EXPECT_FALSE((LosslessArithmeticConvertible<double, float>::value));
 278   GTEST_INTENTIONAL_CONST_COND_PUSH_()
 279   if (sizeof(double) == sizeof(long double)) {  // NOLINT
 280   GTEST_INTENTIONAL_CONST_COND_POP_()
 281     // In some implementations (e.g. MSVC), double and long double
 282     // have the same size.
 283     EXPECT_TRUE((LosslessArithmeticConvertible<long double, double>::value));
 284   } else {
 285     EXPECT_FALSE((LosslessArithmeticConvertible<long double, double>::value));
 286   }
 287 }
 288
 289 // Tests the TupleMatches() template function.
 290
 291 TEST(TupleMatchesTest, WorksForSize0) {
 292   tuple<> matchers;
 293   tuple<> values;
 294
 295   EXPECT_TRUE(TupleMatches(matchers, values));
 296 }
 297
 298 TEST(TupleMatchesTest, WorksForSize1) {
 299   tuple<Matcher<int> > matchers(Eq(1));
 300   tuple<int> values1(1),
 301       values2(2);
 302
 303   EXPECT_TRUE(TupleMatches(matchers, values1));
 304   EXPECT_FALSE(TupleMatches(matchers, values2));
 305 }
 306
 307 TEST(TupleMatchesTest, WorksForSize2) {
 308   tuple<Matcher<int>, Matcher<char> > matchers(Eq(1), Eq('a'));
 309   tuple<int, char> values1(1, 'a'),
 310       values2(1, 'b'),
 311       values3(2, 'a'),
 312       values4(2, 'b');
 313
 314   EXPECT_TRUE(TupleMatches(matchers, values1));
 315   EXPECT_FALSE(TupleMatches(matchers, values2));
 316   EXPECT_FALSE(TupleMatches(matchers, values3));
 317   EXPECT_FALSE(TupleMatches(matchers, values4));
 318 }
 319
 320 TEST(TupleMatchesTest, WorksForSize5) {
 321   tuple<Matcher<int>, Matcher<char>, Matcher<bool>, Matcher<long>,  // NOLINT
 322       Matcher<string> >
 323       matchers(Eq(1), Eq('a'), Eq(true), Eq(2L), Eq("hi"));
 324   tuple<int, char, bool, long, string>  // NOLINT
 325       values1(1, 'a', true, 2L, "hi"),
 326       values2(1, 'a', true, 2L, "hello"),
 327       values3(2, 'a', true, 2L, "hi");
 328
 329   EXPECT_TRUE(TupleMatches(matchers, values1));
 330   EXPECT_FALSE(TupleMatches(matchers, values2));
 331   EXPECT_FALSE(TupleMatches(matchers, values3));
 332 }
 333
 334 // Tests that Assert(true, ...) succeeds.
 335 TEST(AssertTest, SucceedsOnTrue) {
 336   Assert(true, __FILE__, __LINE__, "This should succeed.");
 337   Assert(true, __FILE__, __LINE__);  // This should succeed too.
 338 }
 339
 340 // Tests that Assert(false, ...) generates a fatal failure.
 341 TEST(AssertTest, FailsFatallyOnFalse) {
 342   EXPECT_DEATH_IF_SUPPORTED({
 343     Assert(false, __FILE__, __LINE__, "This should fail.");
 344   }, "");
 345
 346   EXPECT_DEATH_IF_SUPPORTED({
 347     Assert(false, __FILE__, __LINE__);
 348   }, "");
 349 }
 350
 351 // Tests that Expect(true, ...) succeeds.
 352 TEST(ExpectTest, SucceedsOnTrue) {
 353   Expect(true, __FILE__, __LINE__, "This should succeed.");
 354   Expect(true, __FILE__, __LINE__);  // This should succeed too.
 355 }
 356
 357 // Tests that Expect(false, ...) generates a non-fatal failure.
 358 TEST(ExpectTest, FailsNonfatallyOnFalse) {
 359   EXPECT_NONFATAL_FAILURE({  // NOLINT
 360     Expect(false, __FILE__, __LINE__, "This should fail.");
 361   }, "This should fail");
 362
 363   EXPECT_NONFATAL_FAILURE({  // NOLINT
 364     Expect(false, __FILE__, __LINE__);
 365   }, "Expectation failed");
 366 }
 367
 368 // Tests LogIsVisible().
 369
 370 class LogIsVisibleTest : public ::testing::Test {
 371  protected:
 372   virtual void SetUp() {
 373     original_verbose_ = GMOCK_FLAG(verbose);
 374   }
 375
 376   virtual void TearDown() { GMOCK_FLAG(verbose) = original_verbose_; }
 377
 378   string original_verbose_;
 379 };
 380
 381 TEST_F(LogIsVisibleTest, AlwaysReturnsTrueIfVerbosityIsInfo) {
 382   GMOCK_FLAG(verbose) = kInfoVerbosity;
 383   EXPECT_TRUE(LogIsVisible(kInfo));
 384   EXPECT_TRUE(LogIsVisible(kWarning));
 385 }
 386
 387 TEST_F(LogIsVisibleTest, AlwaysReturnsFalseIfVerbosityIsError) {
 388   GMOCK_FLAG(verbose) = kErrorVerbosity;
 389   EXPECT_FALSE(LogIsVisible(kInfo));
 390   EXPECT_FALSE(LogIsVisible(kWarning));
 391 }
 392
 393 TEST_F(LogIsVisibleTest, WorksWhenVerbosityIsWarning) {
 394   GMOCK_FLAG(verbose) = kWarningVerbosity;
 395   EXPECT_FALSE(LogIsVisible(kInfo));
 396   EXPECT_TRUE(LogIsVisible(kWarning));
 397 }
 398
 399 #if GTEST_HAS_STREAM_REDIRECTION
 400
 401 // Tests the Log() function.
 402
 403 // Verifies that Log() behaves correctly for the given verbosity level
 404 // and log severity.
 405 void TestLogWithSeverity(const string& verbosity, LogSeverity severity,
 406                          bool should_print) {
 407   const string old_flag = GMOCK_FLAG(verbose);
 408   GMOCK_FLAG(verbose) = verbosity;
 409   CaptureStdout();
 410   Log(severity, "Test log.\n", 0);
 411   if (should_print) {
 412     EXPECT_THAT(GetCapturedStdout().c_str(),
 413                 ContainsRegex(
 414                     severity == kWarning ?
 415                     "^\nGMOCK WARNING:\nTest log\\.\nStack trace:\n" :
 416                     "^\nTest log\\.\nStack trace:\n"));
 417   } else {
 418     EXPECT_STREQ("", GetCapturedStdout().c_str());
 419   }
 420   GMOCK_FLAG(verbose) = old_flag;
 421 }
 422
 423 // Tests that when the stack_frames_to_skip parameter is negative,
 424 // Log() doesn't include the stack trace in the output.
 425 TEST(LogTest, NoStackTraceWhenStackFramesToSkipIsNegative) {
 426   const string saved_flag = GMOCK_FLAG(verbose);
 427   GMOCK_FLAG(verbose) = kInfoVerbosity;
 428   CaptureStdout();
 429   Log(kInfo, "Test log.\n", -1);
 430   EXPECT_STREQ("\nTest log.\n", GetCapturedStdout().c_str());
 431   GMOCK_FLAG(verbose) = saved_flag;
 432 }
 433
 434 struct MockStackTraceGetter : testing::internal::OsStackTraceGetterInterface {
 435   virtual string CurrentStackTrace(int max_depth, int skip_count) {
 436     return (testing::Message() << max_depth << "::" << skip_count << "\n")
 437         .GetString();
 438   }
 439   virtual void UponLeavingGTest() {}
 440 };
 441
 442 // Tests that in opt mode, a positive stack_frames_to_skip argument is
 443 // treated as 0.
 444 TEST(LogTest, NoSkippingStackFrameInOptMode) {
 445   MockStackTraceGetter* mock_os_stack_trace_getter = new MockStackTraceGetter;
 446   GetUnitTestImpl()->set_os_stack_trace_getter(mock_os_stack_trace_getter);
 447
 448   CaptureStdout();
 449   Log(kWarning, "Test log.\n", 100);
 450   const string log = GetCapturedStdout();
 451
 452   string expected_trace =
 453       (testing::Message() << GTEST_FLAG(stack_trace_depth) << "::").GetString();
 454   string expected_message =
 455       "\nGMOCK WARNING:\n"
 456       "Test log.\n"
 457       "Stack trace:\n" +
 458       expected_trace;
 459   EXPECT_THAT(log, HasSubstr(expected_message));
 460   int skip_count = atoi(log.substr(expected_message.size()).c_str());
 461
 462 # if defined(NDEBUG)
 463   // In opt mode, no stack frame should be skipped.
 464   const int expected_skip_count = 0;
 465 # else
 466   // In dbg mode, the stack frames should be skipped.
 467   const int expected_skip_count = 100;
 468 # endif
 469
 470   // Note that each inner implementation layer will +1 the number to remove
 471   // itself from the trace. This means that the value is a little higher than
 472   // expected, but close enough.
 473   EXPECT_THAT(skip_count,
 474               AllOf(Ge(expected_skip_count), Le(expected_skip_count + 10)));
 475
 476   // Restores the default OS stack trace getter.
 477   GetUnitTestImpl()->set_os_stack_trace_getter(NULL);
 478 }
 479
 480 // Tests that all logs are printed when the value of the
 481 // --gmock_verbose flag is "info".
 482 TEST(LogTest, AllLogsArePrintedWhenVerbosityIsInfo) {
 483   TestLogWithSeverity(kInfoVerbosity, kInfo, true);
 484   TestLogWithSeverity(kInfoVerbosity, kWarning, true);
 485 }
 486
 487 // Tests that only warnings are printed when the value of the
 488 // --gmock_verbose flag is "warning".
 489 TEST(LogTest, OnlyWarningsArePrintedWhenVerbosityIsWarning) {
 490   TestLogWithSeverity(kWarningVerbosity, kInfo, false);
 491   TestLogWithSeverity(kWarningVerbosity, kWarning, true);
 492 }
 493
 494 // Tests that no logs are printed when the value of the
 495 // --gmock_verbose flag is "error".
 496 TEST(LogTest, NoLogsArePrintedWhenVerbosityIsError) {
 497   TestLogWithSeverity(kErrorVerbosity, kInfo, false);
 498   TestLogWithSeverity(kErrorVerbosity, kWarning, false);
 499 }
 500
 501 // Tests that only warnings are printed when the value of the
 502 // --gmock_verbose flag is invalid.
 503 TEST(LogTest, OnlyWarningsArePrintedWhenVerbosityIsInvalid) {
 504   TestLogWithSeverity("invalid", kInfo, false);
 505   TestLogWithSeverity("invalid", kWarning, true);
 506 }
 507
 508 #endif  // GTEST_HAS_STREAM_REDIRECTION
 509
 510 TEST(TypeTraitsTest, true_type) {
 511   EXPECT_TRUE(true_type::value);
 512 }
 513
 514 TEST(TypeTraitsTest, false_type) {
 515   EXPECT_FALSE(false_type::value);
 516 }
 517
 518 TEST(TypeTraitsTest, is_reference) {
 519   EXPECT_FALSE(is_reference<int>::value);
 520   EXPECT_FALSE(is_reference<char*>::value);
 521   EXPECT_TRUE(is_reference<const int&>::value);
 522 }
 523
 524 TEST(TypeTraitsTest, is_pointer) {
 525   EXPECT_FALSE(is_pointer<int>::value);
 526   EXPECT_FALSE(is_pointer<char&>::value);
 527   EXPECT_TRUE(is_pointer<const int*>::value);
 528 }
 529
 530 TEST(TypeTraitsTest, type_equals) {
 531   EXPECT_FALSE((type_equals<int, const int>::value));
 532   EXPECT_FALSE((type_equals<int, int&>::value));
 533   EXPECT_FALSE((type_equals<int, double>::value));
 534   EXPECT_TRUE((type_equals<char, char>::value));
 535 }
 536
 537 TEST(TypeTraitsTest, remove_reference) {
 538   EXPECT_TRUE((type_equals<char, remove_reference<char&>::type>::value));
 539   EXPECT_TRUE((type_equals<const int,
 540                remove_reference<const int&>::type>::value));
 541   EXPECT_TRUE((type_equals<int, remove_reference<int>::type>::value));
 542   EXPECT_TRUE((type_equals<double*, remove_reference<double*>::type>::value));
 543 }
 544
 545 #if GTEST_HAS_STREAM_REDIRECTION
 546
 547 // Verifies that Log() behaves correctly for the given verbosity level
 548 // and log severity.
 549 std::string GrabOutput(void(*logger)(), const char* verbosity) {
 550   const string saved_flag = GMOCK_FLAG(verbose);
 551   GMOCK_FLAG(verbose) = verbosity;
 552   CaptureStdout();
 553   logger();
 554   GMOCK_FLAG(verbose) = saved_flag;
 555   return GetCapturedStdout();
 556 }
 557
 558 class DummyMock {
 559  public:
 560   MOCK_METHOD0(TestMethod, void());
 561   MOCK_METHOD1(TestMethodArg, void(int dummy));
 562 };
 563
 564 void ExpectCallLogger() {
 565   DummyMock mock;
 566   EXPECT_CALL(mock, TestMethod());
 567   mock.TestMethod();
 568 };
 569
 570 // Verifies that EXPECT_CALL logs if the --gmock_verbose flag is set to "info".
 571 TEST(ExpectCallTest, LogsWhenVerbosityIsInfo) {
 572   EXPECT_THAT(std::string(GrabOutput(ExpectCallLogger, kInfoVerbosity)),
 573               HasSubstr("EXPECT_CALL(mock, TestMethod())"));
 574 }
 575
 576 // Verifies that EXPECT_CALL doesn't log
 577 // if the --gmock_verbose flag is set to "warning".
 578 TEST(ExpectCallTest, DoesNotLogWhenVerbosityIsWarning) {
 579   EXPECT_STREQ("", GrabOutput(ExpectCallLogger, kWarningVerbosity).c_str());
 580 }
 581
 582 // Verifies that EXPECT_CALL doesn't log
 583 // if the --gmock_verbose flag is set to "error".
 584 TEST(ExpectCallTest,  DoesNotLogWhenVerbosityIsError) {
 585   EXPECT_STREQ("", GrabOutput(ExpectCallLogger, kErrorVerbosity).c_str());
 586 }
 587
 588 void OnCallLogger() {
 589   DummyMock mock;
 590   ON_CALL(mock, TestMethod());
 591 };
 592
 593 // Verifies that ON_CALL logs if the --gmock_verbose flag is set to "info".
 594 TEST(OnCallTest, LogsWhenVerbosityIsInfo) {
 595   EXPECT_THAT(std::string(GrabOutput(OnCallLogger, kInfoVerbosity)),
 596               HasSubstr("ON_CALL(mock, TestMethod())"));
 597 }
 598
 599 // Verifies that ON_CALL doesn't log
 600 // if the --gmock_verbose flag is set to "warning".
 601 TEST(OnCallTest, DoesNotLogWhenVerbosityIsWarning) {
 602   EXPECT_STREQ("", GrabOutput(OnCallLogger, kWarningVerbosity).c_str());
 603 }
 604
 605 // Verifies that ON_CALL doesn't log if
 606 // the --gmock_verbose flag is set to "error".
 607 TEST(OnCallTest, DoesNotLogWhenVerbosityIsError) {
 608   EXPECT_STREQ("", GrabOutput(OnCallLogger, kErrorVerbosity).c_str());
 609 }
 610
 611 void OnCallAnyArgumentLogger() {
 612   DummyMock mock;
 613   ON_CALL(mock, TestMethodArg(_));
 614 }
 615
 616 // Verifies that ON_CALL prints provided _ argument.
 617 TEST(OnCallTest, LogsAnythingArgument) {
 618   EXPECT_THAT(std::string(GrabOutput(OnCallAnyArgumentLogger, kInfoVerbosity)),
 619               HasSubstr("ON_CALL(mock, TestMethodArg(_)"));
 620 }
 621
 622 #endif  // GTEST_HAS_STREAM_REDIRECTION
 623
 624 // Tests StlContainerView.
 625
 626 TEST(StlContainerViewTest, WorksForStlContainer) {
 627   StaticAssertTypeEq<std::vector<int>,
 628       StlContainerView<std::vector<int> >::type>();
 629   StaticAssertTypeEq<const std::vector<double>&,
 630       StlContainerView<std::vector<double> >::const_reference>();
 631
 632   typedef std::vector<char> Chars;
 633   Chars v1;
 634   const Chars& v2(StlContainerView<Chars>::ConstReference(v1));
 635   EXPECT_EQ(&v1, &v2);
 636
 637   v1.push_back('a');
 638   Chars v3 = StlContainerView<Chars>::Copy(v1);
 639   EXPECT_THAT(v3, Eq(v3));
 640 }
 641
 642 TEST(StlContainerViewTest, WorksForStaticNativeArray) {
 643   StaticAssertTypeEq<NativeArray<int>,
 644       StlContainerView<int[3]>::type>();
 645   StaticAssertTypeEq<NativeArray<double>,
 646       StlContainerView<const double[4]>::type>();
 647   StaticAssertTypeEq<NativeArray<char[3]>,
 648       StlContainerView<const char[2][3]>::type>();
 649
 650   StaticAssertTypeEq<const NativeArray<int>,
 651       StlContainerView<int[2]>::const_reference>();
 652
 653   int a1[3] = { 0, 1, 2 };
 654   NativeArray<int> a2 = StlContainerView<int[3]>::ConstReference(a1);
 655   EXPECT_EQ(3U, a2.size());
 656   EXPECT_EQ(a1, a2.begin());
 657
 658   const NativeArray<int> a3 = StlContainerView<int[3]>::Copy(a1);
 659   ASSERT_EQ(3U, a3.size());
 660   EXPECT_EQ(0, a3.begin()[0]);
 661   EXPECT_EQ(1, a3.begin()[1]);
 662   EXPECT_EQ(2, a3.begin()[2]);
 663
 664   // Makes sure a1 and a3 aren't aliases.
 665   a1[0] = 3;
 666   EXPECT_EQ(0, a3.begin()[0]);
 667 }
 668
 669 TEST(StlContainerViewTest, WorksForDynamicNativeArray) {
 670   StaticAssertTypeEq<NativeArray<int>,
 671       StlContainerView<tuple<const int*, size_t> >::type>();
 672   StaticAssertTypeEq<NativeArray<double>,
 673       StlContainerView<tuple<linked_ptr<double>, int> >::type>();
 674
 675   StaticAssertTypeEq<const NativeArray<int>,
 676       StlContainerView<tuple<const int*, int> >::const_reference>();
 677
 678   int a1[3] = { 0, 1, 2 };
 679   const int* const p1 = a1;
 680   NativeArray<int> a2 = StlContainerView<tuple<const int*, int> >::
 681       ConstReference(make_tuple(p1, 3));
 682   EXPECT_EQ(3U, a2.size());
 683   EXPECT_EQ(a1, a2.begin());
 684
 685   const NativeArray<int> a3 = StlContainerView<tuple<int*, size_t> >::
 686       Copy(make_tuple(static_cast<int*>(a1), 3));
 687   ASSERT_EQ(3U, a3.size());
 688   EXPECT_EQ(0, a3.begin()[0]);
 689   EXPECT_EQ(1, a3.begin()[1]);
 690   EXPECT_EQ(2, a3.begin()[2]);
 691
 692   // Makes sure a1 and a3 aren't aliases.
 693   a1[0] = 3;
 694   EXPECT_EQ(0, a3.begin()[0]);
 695 }
 696
 697 }  // namespace
 698 }  // namespace internal
 699 }  // namespace testing