googlemock/test/gmock-internal-utils_test.cc

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  29
  30 // Google Mock - a framework for writing C++ mock classes.
  31 //
  32 // This file tests the internal utilities.
  33
  34 #include "gmock/internal/gmock-internal-utils.h"
  35
  36 #include <stdlib.h>
  37
  38 #include <cstdint>
  39 #include <map>
  40 #include <memory>
  41 #include <sstream>
  42 #include <string>
  43 #include <vector>
  44
  45 #include "gmock/gmock.h"
  46 #include "gmock/internal/gmock-port.h"
  47 #include "gtest/gtest-spi.h"
  48 #include "gtest/gtest.h"
  49
  50 // Indicates that this translation unit is part of Google Test's
  51 // implementation.  It must come before gtest-internal-inl.h is
  52 // included, or there will be a compiler error.  This trick is to
  53 // prevent a user from accidentally including gtest-internal-inl.h in
  54 // their code.
  55 #define GTEST_IMPLEMENTATION_ 1
  56 #include "src/gtest-internal-inl.h"
  57 #undef GTEST_IMPLEMENTATION_
  58
  59 #if GTEST_OS_CYGWIN
  60 #include <sys/types.h>  // For ssize_t. NOLINT
  61 #endif
  62
  63 namespace proto2 {
  64 class Message;
  65 }  // namespace proto2
  66
  67 namespace testing {
  68 namespace internal {
  69
  70 namespace {
  71
  72 TEST(JoinAsKeyValueTupleTest, JoinsEmptyTuple) {
  73   EXPECT_EQ("", JoinAsKeyValueTuple({}, Strings()));
  74 }
  75
  76 TEST(JoinAsKeyValueTupleTest, JoinsOneTuple) {
  77   EXPECT_EQ("(a: 1)", JoinAsKeyValueTuple({"a"}, {"1"}));
  78 }
  79
  80 TEST(JoinAsKeyValueTupleTest, JoinsTwoTuple) {
  81   EXPECT_EQ("(a: 1, b: 2)", JoinAsKeyValueTuple({"a", "b"}, {"1", "2"}));
  82 }
  83
  84 TEST(JoinAsKeyValueTupleTest, JoinsTenTuple) {
  85   EXPECT_EQ(
  86       "(a: 1, b: 2, c: 3, d: 4, e: 5, f: 6, g: 7, h: 8, i: 9, j: 10)",
  87       JoinAsKeyValueTuple({"a", "b", "c", "d", "e", "f", "g", "h", "i", "j"},
  88                           {"1", "2", "3", "4", "5", "6", "7", "8", "9", "10"}));
  89 }
  90
  91 TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameContainsNoWord) {
  92   EXPECT_EQ("", ConvertIdentifierNameToWords(""));
  93   EXPECT_EQ("", ConvertIdentifierNameToWords("_"));
  94   EXPECT_EQ("", ConvertIdentifierNameToWords("__"));
  95 }
  96
  97 TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameContainsDigits) {
  98   EXPECT_EQ("1", ConvertIdentifierNameToWords("_1"));
  99   EXPECT_EQ("2", ConvertIdentifierNameToWords("2_"));
 100   EXPECT_EQ("34", ConvertIdentifierNameToWords("_34_"));
 101   EXPECT_EQ("34 56", ConvertIdentifierNameToWords("_34_56"));
 102 }
 103
 104 TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameContainsCamelCaseWords) {
 105   EXPECT_EQ("a big word", ConvertIdentifierNameToWords("ABigWord"));
 106   EXPECT_EQ("foo bar", ConvertIdentifierNameToWords("FooBar"));
 107   EXPECT_EQ("foo", ConvertIdentifierNameToWords("Foo_"));
 108   EXPECT_EQ("foo bar", ConvertIdentifierNameToWords("_Foo_Bar_"));
 109   EXPECT_EQ("foo and bar", ConvertIdentifierNameToWords("_Foo__And_Bar"));
 110 }
 111
 112 TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameContains_SeparatedWords) {
 113   EXPECT_EQ("foo bar", ConvertIdentifierNameToWords("foo_bar"));
 114   EXPECT_EQ("foo", ConvertIdentifierNameToWords("_foo_"));
 115   EXPECT_EQ("foo bar", ConvertIdentifierNameToWords("_foo_bar_"));
 116   EXPECT_EQ("foo and bar", ConvertIdentifierNameToWords("_foo__and_bar"));
 117 }
 118
 119 TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameIsMixture) {
 120   EXPECT_EQ("foo bar 123", ConvertIdentifierNameToWords("Foo_bar123"));
 121   EXPECT_EQ("chapter 11 section 1",
 122             ConvertIdentifierNameToWords("_Chapter11Section_1_"));
 123 }
 124
 125 TEST(GetRawPointerTest, WorksForSmartPointers) {
 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   double* const raw_p2 = new double(2.5);  // NOLINT
 130   const std::shared_ptr<double> p2(raw_p2);
 131   EXPECT_EQ(raw_p2, GetRawPointer(p2));
 132 }
 133
 134 TEST(GetRawPointerTest, WorksForRawPointers) {
 135   int* p = nullptr;
 136   EXPECT_TRUE(nullptr == GetRawPointer(p));
 137   int n = 1;
 138   EXPECT_EQ(&n, GetRawPointer(&n));
 139 }
 140
 141 TEST(GetRawPointerTest, WorksForStdReferenceWrapper) {
 142   int n = 1;
 143   EXPECT_EQ(&n, GetRawPointer(std::ref(n)));
 144   EXPECT_EQ(&n, GetRawPointer(std::cref(n)));
 145 }
 146
 147 // Tests KindOf<T>.
 148
 149 class Base {};
 150 class Derived : public Base {};
 151
 152 TEST(KindOfTest, Bool) {
 153   EXPECT_EQ(kBool, GMOCK_KIND_OF_(bool));  // NOLINT
 154 }
 155
 156 TEST(KindOfTest, Integer) {
 157   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(char));                // NOLINT
 158   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(signed char));         // NOLINT
 159   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(unsigned char));       // NOLINT
 160   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(short));               // NOLINT
 161   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(unsigned short));      // NOLINT
 162   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(int));                 // NOLINT
 163   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(unsigned int));        // NOLINT
 164   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(long));                // NOLINT
 165   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(unsigned long));       // NOLINT
 166   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(long long));           // NOLINT
 167   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(unsigned long long));  // NOLINT
 168   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(wchar_t));             // NOLINT
 169   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(size_t));              // NOLINT
 170 #if GTEST_OS_LINUX || GTEST_OS_MAC || GTEST_OS_CYGWIN
 171   // ssize_t is not defined on Windows and possibly some other OSes.
 172   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(ssize_t));  // NOLINT
 173 #endif
 174 }
 175
 176 TEST(KindOfTest, FloatingPoint) {
 177   EXPECT_EQ(kFloatingPoint, GMOCK_KIND_OF_(float));        // NOLINT
 178   EXPECT_EQ(kFloatingPoint, GMOCK_KIND_OF_(double));       // NOLINT
 179   EXPECT_EQ(kFloatingPoint, GMOCK_KIND_OF_(long double));  // NOLINT
 180 }
 181
 182 TEST(KindOfTest, Other) {
 183   EXPECT_EQ(kOther, GMOCK_KIND_OF_(void*));   // NOLINT
 184   EXPECT_EQ(kOther, GMOCK_KIND_OF_(char**));  // NOLINT
 185   EXPECT_EQ(kOther, GMOCK_KIND_OF_(Base));    // NOLINT
 186 }
 187
 188 // Tests LosslessArithmeticConvertible<T, U>.
 189
 190 TEST(LosslessArithmeticConvertibleTest, BoolToBool) {
 191   EXPECT_TRUE((LosslessArithmeticConvertible<bool, bool>::value));
 192 }
 193
 194 TEST(LosslessArithmeticConvertibleTest, BoolToInteger) {
 195   EXPECT_TRUE((LosslessArithmeticConvertible<bool, char>::value));
 196   EXPECT_TRUE((LosslessArithmeticConvertible<bool, int>::value));
 197   EXPECT_TRUE(
 198       (LosslessArithmeticConvertible<bool, unsigned long>::value));  // NOLINT
 199 }
 200
 201 TEST(LosslessArithmeticConvertibleTest, BoolToFloatingPoint) {
 202   EXPECT_TRUE((LosslessArithmeticConvertible<bool, float>::value));
 203   EXPECT_TRUE((LosslessArithmeticConvertible<bool, double>::value));
 204 }
 205
 206 TEST(LosslessArithmeticConvertibleTest, IntegerToBool) {
 207   EXPECT_FALSE((LosslessArithmeticConvertible<unsigned char, bool>::value));
 208   EXPECT_FALSE((LosslessArithmeticConvertible<int, bool>::value));
 209 }
 210
 211 TEST(LosslessArithmeticConvertibleTest, IntegerToInteger) {
 212   // Unsigned => larger signed is fine.
 213   EXPECT_TRUE((LosslessArithmeticConvertible<unsigned char, int>::value));
 214
 215   // Unsigned => larger unsigned is fine.
 216   EXPECT_TRUE((LosslessArithmeticConvertible<unsigned short,
 217                                              uint64_t>::value));  // NOLINT
 218
 219   // Signed => unsigned is not fine.
 220   EXPECT_FALSE(
 221       (LosslessArithmeticConvertible<short, uint64_t>::value));  // NOLINT
 222   EXPECT_FALSE((LosslessArithmeticConvertible<signed char,
 223                                               unsigned int>::value));  // NOLINT
 224
 225   // Same size and same signedness: fine too.
 226   EXPECT_TRUE(
 227       (LosslessArithmeticConvertible<unsigned char, unsigned char>::value));
 228   EXPECT_TRUE((LosslessArithmeticConvertible<int, int>::value));
 229   EXPECT_TRUE((LosslessArithmeticConvertible<wchar_t, wchar_t>::value));
 230   EXPECT_TRUE((LosslessArithmeticConvertible<unsigned long,
 231                                              unsigned long>::value));  // NOLINT
 232
 233   // Same size, different signedness: not fine.
 234   EXPECT_FALSE(
 235       (LosslessArithmeticConvertible<unsigned char, signed char>::value));
 236   EXPECT_FALSE((LosslessArithmeticConvertible<int, unsigned int>::value));
 237   EXPECT_FALSE((LosslessArithmeticConvertible<uint64_t, int64_t>::value));
 238
 239   // Larger size => smaller size is not fine.
 240   EXPECT_FALSE((LosslessArithmeticConvertible<long, char>::value));  // NOLINT
 241   EXPECT_FALSE((LosslessArithmeticConvertible<int, signed char>::value));
 242   EXPECT_FALSE((LosslessArithmeticConvertible<int64_t, unsigned int>::value));
 243 }
 244
 245 TEST(LosslessArithmeticConvertibleTest, IntegerToFloatingPoint) {
 246   // Integers cannot be losslessly converted to floating-points, as
 247   // the format of the latter is implementation-defined.
 248   EXPECT_FALSE((LosslessArithmeticConvertible<char, float>::value));
 249   EXPECT_FALSE((LosslessArithmeticConvertible<int, double>::value));
 250   EXPECT_FALSE(
 251       (LosslessArithmeticConvertible<short, long double>::value));  // NOLINT
 252 }
 253
 254 TEST(LosslessArithmeticConvertibleTest, FloatingPointToBool) {
 255   EXPECT_FALSE((LosslessArithmeticConvertible<float, bool>::value));
 256   EXPECT_FALSE((LosslessArithmeticConvertible<double, bool>::value));
 257 }
 258
 259 TEST(LosslessArithmeticConvertibleTest, FloatingPointToInteger) {
 260   EXPECT_FALSE((LosslessArithmeticConvertible<float, long>::value));  // NOLINT
 261   EXPECT_FALSE((LosslessArithmeticConvertible<double, int64_t>::value));
 262   EXPECT_FALSE((LosslessArithmeticConvertible<long double, int>::value));
 263 }
 264
 265 TEST(LosslessArithmeticConvertibleTest, FloatingPointToFloatingPoint) {
 266   // Smaller size => larger size is fine.
 267   EXPECT_TRUE((LosslessArithmeticConvertible<float, double>::value));
 268   EXPECT_TRUE((LosslessArithmeticConvertible<float, long double>::value));
 269   EXPECT_TRUE((LosslessArithmeticConvertible<double, long double>::value));
 270
 271   // Same size: fine.
 272   EXPECT_TRUE((LosslessArithmeticConvertible<float, float>::value));
 273   EXPECT_TRUE((LosslessArithmeticConvertible<double, double>::value));
 274
 275   // Larger size => smaller size is not fine.
 276   EXPECT_FALSE((LosslessArithmeticConvertible<double, float>::value));
 277   GTEST_INTENTIONAL_CONST_COND_PUSH_()
 278   if (sizeof(double) == sizeof(long double)) {  // NOLINT
 279     GTEST_INTENTIONAL_CONST_COND_POP_()
 280     // In some implementations (e.g. MSVC), double and long double
 281     // have the same size.
 282     EXPECT_TRUE((LosslessArithmeticConvertible<long double, double>::value));
 283   } else {
 284     EXPECT_FALSE((LosslessArithmeticConvertible<long double, double>::value));
 285   }
 286 }
 287
 288 // Tests the TupleMatches() template function.
 289
 290 TEST(TupleMatchesTest, WorksForSize0) {
 291   std::tuple<> matchers;
 292   std::tuple<> values;
 293
 294   EXPECT_TRUE(TupleMatches(matchers, values));
 295 }
 296
 297 TEST(TupleMatchesTest, WorksForSize1) {
 298   std::tuple<Matcher<int>> matchers(Eq(1));
 299   std::tuple<int> values1(1), values2(2);
 300
 301   EXPECT_TRUE(TupleMatches(matchers, values1));
 302   EXPECT_FALSE(TupleMatches(matchers, values2));
 303 }
 304
 305 TEST(TupleMatchesTest, WorksForSize2) {
 306   std::tuple<Matcher<int>, Matcher<char>> matchers(Eq(1), Eq('a'));
 307   std::tuple<int, char> values1(1, 'a'), values2(1, 'b'), values3(2, 'a'),
 308       values4(2, 'b');
 309
 310   EXPECT_TRUE(TupleMatches(matchers, values1));
 311   EXPECT_FALSE(TupleMatches(matchers, values2));
 312   EXPECT_FALSE(TupleMatches(matchers, values3));
 313   EXPECT_FALSE(TupleMatches(matchers, values4));
 314 }
 315
 316 TEST(TupleMatchesTest, WorksForSize5) {
 317   std::tuple<Matcher<int>, Matcher<char>, Matcher<bool>,
 318              Matcher<long>,  // NOLINT
 319              Matcher<std::string>>
 320       matchers(Eq(1), Eq('a'), Eq(true), Eq(2L), Eq("hi"));
 321   std::tuple<int, char, bool, long, std::string>  // NOLINT
 322       values1(1, 'a', true, 2L, "hi"), values2(1, 'a', true, 2L, "hello"),
 323       values3(2, 'a', true, 2L, "hi");
 324
 325   EXPECT_TRUE(TupleMatches(matchers, values1));
 326   EXPECT_FALSE(TupleMatches(matchers, values2));
 327   EXPECT_FALSE(TupleMatches(matchers, values3));
 328 }
 329
 330 // Tests that Assert(true, ...) succeeds.
 331 TEST(AssertTest, SucceedsOnTrue) {
 332   Assert(true, __FILE__, __LINE__, "This should succeed.");
 333   Assert(true, __FILE__, __LINE__);  // This should succeed too.
 334 }
 335
 336 // Tests that Assert(false, ...) generates a fatal failure.
 337 TEST(AssertTest, FailsFatallyOnFalse) {
 338   EXPECT_DEATH_IF_SUPPORTED(
 339       { Assert(false, __FILE__, __LINE__, "This should fail."); }, "");
 340
 341   EXPECT_DEATH_IF_SUPPORTED({ Assert(false, __FILE__, __LINE__); }, "");
 342 }
 343
 344 // Tests that Expect(true, ...) succeeds.
 345 TEST(ExpectTest, SucceedsOnTrue) {
 346   Expect(true, __FILE__, __LINE__, "This should succeed.");
 347   Expect(true, __FILE__, __LINE__);  // This should succeed too.
 348 }
 349
 350 // Tests that Expect(false, ...) generates a non-fatal failure.
 351 TEST(ExpectTest, FailsNonfatallyOnFalse) {
 352   EXPECT_NONFATAL_FAILURE(
 353       {  // NOLINT
 354         Expect(false, __FILE__, __LINE__, "This should fail.");
 355       },
 356       "This should fail");
 357
 358   EXPECT_NONFATAL_FAILURE(
 359       {  // NOLINT
 360         Expect(false, __FILE__, __LINE__);
 361       },
 362       "Expectation failed");
 363 }
 364
 365 // Tests LogIsVisible().
 366
 367 class LogIsVisibleTest : public ::testing::Test {
 368  protected:
 369   void SetUp() override { original_verbose_ = GMOCK_FLAG_GET(verbose); }
 370
 371   void TearDown() override { GMOCK_FLAG_SET(verbose, original_verbose_); }
 372
 373   std::string original_verbose_;
 374 };
 375
 376 TEST_F(LogIsVisibleTest, AlwaysReturnsTrueIfVerbosityIsInfo) {
 377   GMOCK_FLAG_SET(verbose, kInfoVerbosity);
 378   EXPECT_TRUE(LogIsVisible(kInfo));
 379   EXPECT_TRUE(LogIsVisible(kWarning));
 380 }
 381
 382 TEST_F(LogIsVisibleTest, AlwaysReturnsFalseIfVerbosityIsError) {
 383   GMOCK_FLAG_SET(verbose, kErrorVerbosity);
 384   EXPECT_FALSE(LogIsVisible(kInfo));
 385   EXPECT_FALSE(LogIsVisible(kWarning));
 386 }
 387
 388 TEST_F(LogIsVisibleTest, WorksWhenVerbosityIsWarning) {
 389   GMOCK_FLAG_SET(verbose, kWarningVerbosity);
 390   EXPECT_FALSE(LogIsVisible(kInfo));
 391   EXPECT_TRUE(LogIsVisible(kWarning));
 392 }
 393
 394 #if GTEST_HAS_STREAM_REDIRECTION
 395
 396 // Tests the Log() function.
 397
 398 // Verifies that Log() behaves correctly for the given verbosity level
 399 // and log severity.
 400 void TestLogWithSeverity(const std::string& verbosity, LogSeverity severity,
 401                          bool should_print) {
 402   const std::string old_flag = GMOCK_FLAG_GET(verbose);
 403   GMOCK_FLAG_SET(verbose, verbosity);
 404   CaptureStdout();
 405   Log(severity, "Test log.\n", 0);
 406   if (should_print) {
 407     EXPECT_THAT(
 408         GetCapturedStdout().c_str(),
 409         ContainsRegex(severity == kWarning
 410                           ? "^\nGMOCK WARNING:\nTest log\\.\nStack trace:\n"
 411                           : "^\nTest log\\.\nStack trace:\n"));
 412   } else {
 413     EXPECT_STREQ("", GetCapturedStdout().c_str());
 414   }
 415   GMOCK_FLAG_SET(verbose, old_flag);
 416 }
 417
 418 // Tests that when the stack_frames_to_skip parameter is negative,
 419 // Log() doesn't include the stack trace in the output.
 420 TEST(LogTest, NoStackTraceWhenStackFramesToSkipIsNegative) {
 421   const std::string saved_flag = GMOCK_FLAG_GET(verbose);
 422   GMOCK_FLAG_SET(verbose, kInfoVerbosity);
 423   CaptureStdout();
 424   Log(kInfo, "Test log.\n", -1);
 425   EXPECT_STREQ("\nTest log.\n", GetCapturedStdout().c_str());
 426   GMOCK_FLAG_SET(verbose, saved_flag);
 427 }
 428
 429 struct MockStackTraceGetter : testing::internal::OsStackTraceGetterInterface {
 430   std::string CurrentStackTrace(int max_depth, int skip_count) override {
 431     return (testing::Message() << max_depth << "::" << skip_count << "\n")
 432         .GetString();
 433   }
 434   void UponLeavingGTest() override {}
 435 };
 436
 437 // Tests that in opt mode, a positive stack_frames_to_skip argument is
 438 // treated as 0.
 439 TEST(LogTest, NoSkippingStackFrameInOptMode) {
 440   MockStackTraceGetter* mock_os_stack_trace_getter = new MockStackTraceGetter;
 441   GetUnitTestImpl()->set_os_stack_trace_getter(mock_os_stack_trace_getter);
 442
 443   CaptureStdout();
 444   Log(kWarning, "Test log.\n", 100);
 445   const std::string log = GetCapturedStdout();
 446
 447   std::string expected_trace =
 448       (testing::Message() << GTEST_FLAG_GET(stack_trace_depth) << "::")
 449           .GetString();
 450   std::string expected_message =
 451       "\nGMOCK WARNING:\n"
 452       "Test log.\n"
 453       "Stack trace:\n" +
 454       expected_trace;
 455   EXPECT_THAT(log, HasSubstr(expected_message));
 456   int skip_count = atoi(log.substr(expected_message.size()).c_str());
 457
 458 #if defined(NDEBUG)
 459   // In opt mode, no stack frame should be skipped.
 460   const int expected_skip_count = 0;
 461 #else
 462   // In dbg mode, the stack frames should be skipped.
 463   const int expected_skip_count = 100;
 464 #endif
 465
 466   // Note that each inner implementation layer will +1 the number to remove
 467   // itself from the trace. This means that the value is a little higher than
 468   // expected, but close enough.
 469   EXPECT_THAT(skip_count,
 470               AllOf(Ge(expected_skip_count), Le(expected_skip_count + 10)));
 471
 472   // Restores the default OS stack trace getter.
 473   GetUnitTestImpl()->set_os_stack_trace_getter(nullptr);
 474 }
 475
 476 // Tests that all logs are printed when the value of the
 477 // --gmock_verbose flag is "info".
 478 TEST(LogTest, AllLogsArePrintedWhenVerbosityIsInfo) {
 479   TestLogWithSeverity(kInfoVerbosity, kInfo, true);
 480   TestLogWithSeverity(kInfoVerbosity, kWarning, true);
 481 }
 482
 483 // Tests that only warnings are printed when the value of the
 484 // --gmock_verbose flag is "warning".
 485 TEST(LogTest, OnlyWarningsArePrintedWhenVerbosityIsWarning) {
 486   TestLogWithSeverity(kWarningVerbosity, kInfo, false);
 487   TestLogWithSeverity(kWarningVerbosity, kWarning, true);
 488 }
 489
 490 // Tests that no logs are printed when the value of the
 491 // --gmock_verbose flag is "error".
 492 TEST(LogTest, NoLogsArePrintedWhenVerbosityIsError) {
 493   TestLogWithSeverity(kErrorVerbosity, kInfo, false);
 494   TestLogWithSeverity(kErrorVerbosity, kWarning, false);
 495 }
 496
 497 // Tests that only warnings are printed when the value of the
 498 // --gmock_verbose flag is invalid.
 499 TEST(LogTest, OnlyWarningsArePrintedWhenVerbosityIsInvalid) {
 500   TestLogWithSeverity("invalid", kInfo, false);
 501   TestLogWithSeverity("invalid", kWarning, true);
 502 }
 503
 504 // Verifies that Log() behaves correctly for the given verbosity level
 505 // and log severity.
 506 std::string GrabOutput(void (*logger)(), const char* verbosity) {
 507   const std::string saved_flag = GMOCK_FLAG_GET(verbose);
 508   GMOCK_FLAG_SET(verbose, verbosity);
 509   CaptureStdout();
 510   logger();
 511   GMOCK_FLAG_SET(verbose, saved_flag);
 512   return GetCapturedStdout();
 513 }
 514
 515 class DummyMock {
 516  public:
 517   MOCK_METHOD0(TestMethod, void());
 518   MOCK_METHOD1(TestMethodArg, void(int dummy));
 519 };
 520
 521 void ExpectCallLogger() {
 522   DummyMock mock;
 523   EXPECT_CALL(mock, TestMethod());
 524   mock.TestMethod();
 525 }
 526
 527 // Verifies that EXPECT_CALL logs if the --gmock_verbose flag is set to "info".
 528 TEST(ExpectCallTest, LogsWhenVerbosityIsInfo) {
 529   EXPECT_THAT(std::string(GrabOutput(ExpectCallLogger, kInfoVerbosity)),
 530               HasSubstr("EXPECT_CALL(mock, TestMethod())"));
 531 }
 532
 533 // Verifies that EXPECT_CALL doesn't log
 534 // if the --gmock_verbose flag is set to "warning".
 535 TEST(ExpectCallTest, DoesNotLogWhenVerbosityIsWarning) {
 536   EXPECT_STREQ("", GrabOutput(ExpectCallLogger, kWarningVerbosity).c_str());
 537 }
 538
 539 // Verifies that EXPECT_CALL doesn't log
 540 // if the --gmock_verbose flag is set to "error".
 541 TEST(ExpectCallTest, DoesNotLogWhenVerbosityIsError) {
 542   EXPECT_STREQ("", GrabOutput(ExpectCallLogger, kErrorVerbosity).c_str());
 543 }
 544
 545 void OnCallLogger() {
 546   DummyMock mock;
 547   ON_CALL(mock, TestMethod());
 548 }
 549
 550 // Verifies that ON_CALL logs if the --gmock_verbose flag is set to "info".
 551 TEST(OnCallTest, LogsWhenVerbosityIsInfo) {
 552   EXPECT_THAT(std::string(GrabOutput(OnCallLogger, kInfoVerbosity)),
 553               HasSubstr("ON_CALL(mock, TestMethod())"));
 554 }
 555
 556 // Verifies that ON_CALL doesn't log
 557 // if the --gmock_verbose flag is set to "warning".
 558 TEST(OnCallTest, DoesNotLogWhenVerbosityIsWarning) {
 559   EXPECT_STREQ("", GrabOutput(OnCallLogger, kWarningVerbosity).c_str());
 560 }
 561
 562 // Verifies that ON_CALL doesn't log if
 563 // the --gmock_verbose flag is set to "error".
 564 TEST(OnCallTest, DoesNotLogWhenVerbosityIsError) {
 565   EXPECT_STREQ("", GrabOutput(OnCallLogger, kErrorVerbosity).c_str());
 566 }
 567
 568 void OnCallAnyArgumentLogger() {
 569   DummyMock mock;
 570   ON_CALL(mock, TestMethodArg(_));
 571 }
 572
 573 // Verifies that ON_CALL prints provided _ argument.
 574 TEST(OnCallTest, LogsAnythingArgument) {
 575   EXPECT_THAT(std::string(GrabOutput(OnCallAnyArgumentLogger, kInfoVerbosity)),
 576               HasSubstr("ON_CALL(mock, TestMethodArg(_)"));
 577 }
 578
 579 #endif  // GTEST_HAS_STREAM_REDIRECTION
 580
 581 // Tests StlContainerView.
 582
 583 TEST(StlContainerViewTest, WorksForStlContainer) {
 584   StaticAssertTypeEq<std::vector<int>,
 585                      StlContainerView<std::vector<int>>::type>();
 586   StaticAssertTypeEq<const std::vector<double>&,
 587                      StlContainerView<std::vector<double>>::const_reference>();
 588
 589   typedef std::vector<char> Chars;
 590   Chars v1;
 591   const Chars& v2(StlContainerView<Chars>::ConstReference(v1));
 592   EXPECT_EQ(&v1, &v2);
 593
 594   v1.push_back('a');
 595   Chars v3 = StlContainerView<Chars>::Copy(v1);
 596   EXPECT_THAT(v3, Eq(v3));
 597 }
 598
 599 TEST(StlContainerViewTest, WorksForStaticNativeArray) {
 600   StaticAssertTypeEq<NativeArray<int>, StlContainerView<int[3]>::type>();
 601   StaticAssertTypeEq<NativeArray<double>,
 602                      StlContainerView<const double[4]>::type>();
 603   StaticAssertTypeEq<NativeArray<char[3]>,
 604                      StlContainerView<const char[2][3]>::type>();
 605
 606   StaticAssertTypeEq<const NativeArray<int>,
 607                      StlContainerView<int[2]>::const_reference>();
 608
 609   int a1[3] = {0, 1, 2};
 610   NativeArray<int> a2 = StlContainerView<int[3]>::ConstReference(a1);
 611   EXPECT_EQ(3U, a2.size());
 612   EXPECT_EQ(a1, a2.begin());
 613
 614   const NativeArray<int> a3 = StlContainerView<int[3]>::Copy(a1);
 615   ASSERT_EQ(3U, a3.size());
 616   EXPECT_EQ(0, a3.begin()[0]);
 617   EXPECT_EQ(1, a3.begin()[1]);
 618   EXPECT_EQ(2, a3.begin()[2]);
 619
 620   // Makes sure a1 and a3 aren't aliases.
 621   a1[0] = 3;
 622   EXPECT_EQ(0, a3.begin()[0]);
 623 }
 624
 625 TEST(StlContainerViewTest, WorksForDynamicNativeArray) {
 626   StaticAssertTypeEq<NativeArray<int>,
 627                      StlContainerView<std::tuple<const int*, size_t>>::type>();
 628   StaticAssertTypeEq<
 629       NativeArray<double>,
 630       StlContainerView<std::tuple<std::shared_ptr<double>, int>>::type>();
 631
 632   StaticAssertTypeEq<
 633       const NativeArray<int>,
 634       StlContainerView<std::tuple<const int*, int>>::const_reference>();
 635
 636   int a1[3] = {0, 1, 2};
 637   const int* const p1 = a1;
 638   NativeArray<int> a2 =
 639       StlContainerView<std::tuple<const int*, int>>::ConstReference(
 640           std::make_tuple(p1, 3));
 641   EXPECT_EQ(3U, a2.size());
 642   EXPECT_EQ(a1, a2.begin());
 643
 644   const NativeArray<int> a3 = StlContainerView<std::tuple<int*, size_t>>::Copy(
 645       std::make_tuple(static_cast<int*>(a1), 3));
 646   ASSERT_EQ(3U, a3.size());
 647   EXPECT_EQ(0, a3.begin()[0]);
 648   EXPECT_EQ(1, a3.begin()[1]);
 649   EXPECT_EQ(2, a3.begin()[2]);
 650
 651   // Makes sure a1 and a3 aren't aliases.
 652   a1[0] = 3;
 653   EXPECT_EQ(0, a3.begin()[0]);
 654 }
 655
 656 // Tests the Function template struct.
 657
 658 TEST(FunctionTest, Nullary) {
 659   typedef Function<int()> F;  // NOLINT
 660   EXPECT_EQ(0u, F::ArgumentCount);
 661   EXPECT_TRUE((std::is_same<int, F::Result>::value));
 662   EXPECT_TRUE((std::is_same<std::tuple<>, F::ArgumentTuple>::value));
 663   EXPECT_TRUE((std::is_same<std::tuple<>, F::ArgumentMatcherTuple>::value));
 664   EXPECT_TRUE((std::is_same<void(), F::MakeResultVoid>::value));
 665   EXPECT_TRUE((std::is_same<IgnoredValue(), F::MakeResultIgnoredValue>::value));
 666 }
 667
 668 TEST(FunctionTest, Unary) {
 669   typedef Function<int(bool)> F;  // NOLINT
 670   EXPECT_EQ(1u, F::ArgumentCount);
 671   EXPECT_TRUE((std::is_same<int, F::Result>::value));
 672   EXPECT_TRUE((std::is_same<bool, F::Arg<0>::type>::value));
 673   EXPECT_TRUE((std::is_same<std::tuple<bool>, F::ArgumentTuple>::value));
 674   EXPECT_TRUE((
 675       std::is_same<std::tuple<Matcher<bool>>, F::ArgumentMatcherTuple>::value));
 676   EXPECT_TRUE((std::is_same<void(bool), F::MakeResultVoid>::value));  // NOLINT
 677   EXPECT_TRUE((std::is_same<IgnoredValue(bool),                       // NOLINT
 678                             F::MakeResultIgnoredValue>::value));
 679 }
 680
 681 TEST(FunctionTest, Binary) {
 682   typedef Function<int(bool, const long&)> F;  // NOLINT
 683   EXPECT_EQ(2u, F::ArgumentCount);
 684   EXPECT_TRUE((std::is_same<int, F::Result>::value));
 685   EXPECT_TRUE((std::is_same<bool, F::Arg<0>::type>::value));
 686   EXPECT_TRUE((std::is_same<const long&, F::Arg<1>::type>::value));  // NOLINT
 687   EXPECT_TRUE((std::is_same<std::tuple<bool, const long&>,           // NOLINT
 688                             F::ArgumentTuple>::value));
 689   EXPECT_TRUE(
 690       (std::is_same<std::tuple<Matcher<bool>, Matcher<const long&>>,  // NOLINT
 691                     F::ArgumentMatcherTuple>::value));
 692   EXPECT_TRUE((std::is_same<void(bool, const long&),  // NOLINT
 693                             F::MakeResultVoid>::value));
 694   EXPECT_TRUE((std::is_same<IgnoredValue(bool, const long&),  // NOLINT
 695                             F::MakeResultIgnoredValue>::value));
 696 }
 697
 698 TEST(FunctionTest, LongArgumentList) {
 699   typedef Function<char(bool, int, char*, int&, const long&)> F;  // NOLINT
 700   EXPECT_EQ(5u, F::ArgumentCount);
 701   EXPECT_TRUE((std::is_same<char, F::Result>::value));
 702   EXPECT_TRUE((std::is_same<bool, F::Arg<0>::type>::value));
 703   EXPECT_TRUE((std::is_same<int, F::Arg<1>::type>::value));
 704   EXPECT_TRUE((std::is_same<char*, F::Arg<2>::type>::value));
 705   EXPECT_TRUE((std::is_same<int&, F::Arg<3>::type>::value));
 706   EXPECT_TRUE((std::is_same<const long&, F::Arg<4>::type>::value));  // NOLINT
 707   EXPECT_TRUE(
 708       (std::is_same<std::tuple<bool, int, char*, int&, const long&>,  // NOLINT
 709                     F::ArgumentTuple>::value));
 710   EXPECT_TRUE(
 711       (std::is_same<
 712           std::tuple<Matcher<bool>, Matcher<int>, Matcher<char*>, Matcher<int&>,
 713                      Matcher<const long&>>,  // NOLINT
 714           F::ArgumentMatcherTuple>::value));
 715   EXPECT_TRUE(
 716       (std::is_same<void(bool, int, char*, int&, const long&),  // NOLINT
 717                     F::MakeResultVoid>::value));
 718   EXPECT_TRUE((
 719       std::is_same<IgnoredValue(bool, int, char*, int&, const long&),  // NOLINT
 720                    F::MakeResultIgnoredValue>::value));
 721 }
 722
 723 TEST(Base64Unescape, InvalidString) {
 724   std::string unescaped;
 725   EXPECT_FALSE(Base64Unescape("(invalid)", &unescaped));
 726 }
 727
 728 TEST(Base64Unescape, ShortString) {
 729   std::string unescaped;
 730   EXPECT_TRUE(Base64Unescape("SGVsbG8gd29ybGQh", &unescaped));
 731   EXPECT_EQ("Hello world!", unescaped);
 732 }
 733
 734 TEST(Base64Unescape, ShortStringWithPadding) {
 735   std::string unescaped;
 736   EXPECT_TRUE(Base64Unescape("SGVsbG8gd29ybGQ=", &unescaped));
 737   EXPECT_EQ("Hello world", unescaped);
 738 }
 739
 740 TEST(Base64Unescape, ShortStringWithoutPadding) {
 741   std::string unescaped;
 742   EXPECT_TRUE(Base64Unescape("SGVsbG8gd29ybGQ", &unescaped));
 743   EXPECT_EQ("Hello world", unescaped);
 744 }
 745
 746 TEST(Base64Unescape, LongStringWithWhiteSpaces) {
 747   std::string escaped =
 748       R"(TWFuIGlzIGRpc3Rpbmd1aXNoZWQsIG5vdCBvbmx5IGJ5IGhpcyByZWFzb24sIGJ1dCBieSB0aGlz
 749   IHNpbmd1bGFyIHBhc3Npb24gZnJvbSBvdGhlciBhbmltYWxzLCB3aGljaCBpcyBhIGx1c3Qgb2Yg
 750   dGhlIG1pbmQsIHRoYXQgYnkgYSBwZXJzZXZlcmFuY2Ugb2YgZGVsaWdodCBpbiB0aGUgY29udGlu
 751   dWVkIGFuZCBpbmRlZmF0aWdhYmxlIGdlbmVyYXRpb24gb2Yga25vd2xlZGdlLCBleGNlZWRzIHRo
 752   ZSBzaG9ydCB2ZWhlbWVuY2Ugb2YgYW55IGNhcm5hbCBwbGVhc3VyZS4=)";
 753   std::string expected =
 754       "Man is distinguished, not only by his reason, but by this singular "
 755       "passion from other animals, which is a lust of the mind, that by a "
 756       "perseverance of delight in the continued and indefatigable generation "
 757       "of knowledge, exceeds the short vehemence of any carnal pleasure.";
 758   std::string unescaped;
 759   EXPECT_TRUE(Base64Unescape(escaped, &unescaped));
 760   EXPECT_EQ(expected, unescaped);
 761 }
 762
 763 }  // namespace
 764 }  // namespace internal
 765 }  // namespace testing