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