1// Copyright 2005, Google Inc. 2// All rights reserved. 3// 4// Redistribution and use in source and binary forms, with or without 5// modification, are permitted provided that the following conditions are 6// met: 7// 8// * Redistributions of source code must retain the above copyright 9// notice, this list of conditions and the following disclaimer. 10// * Redistributions in binary form must reproduce the above 11// copyright notice, this list of conditions and the following disclaimer 12// in the documentation and/or other materials provided with the 13// distribution. 14// * Neither the name of Google Inc. nor the names of its 15// contributors may be used to endorse or promote products derived from 16// this software without specific prior written permission. 17// 18// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29// 30// Authors: wan@google.com (Zhanyong Wan), eefacm@gmail.com (Sean Mcafee) 31// 32// The Google C++ Testing Framework (Google Test) 33// 34// This header file declares functions and macros used internally by 35// Google Test. They are subject to change without notice. 36 37#ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_INTERNAL_H_ 38#define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_INTERNAL_H_ 39 40#include "gtest/internal/gtest-port.h" 41 42#if GTEST_OS_LINUX 43# include <stdlib.h> 44# include <sys/types.h> 45# include <sys/wait.h> 46# include <unistd.h> 47#endif // GTEST_OS_LINUX 48 49#include <ctype.h> 50#include <string.h> 51#include <iomanip> 52#include <limits> 53#include <set> 54 55#include "gtest/internal/gtest-string.h" 56#include "gtest/internal/gtest-filepath.h" 57#include "gtest/internal/gtest-type-util.h" 58 59#include "llvm/Support/raw_os_ostream.h" 60 61// Due to C++ preprocessor weirdness, we need double indirection to 62// concatenate two tokens when one of them is __LINE__. Writing 63// 64// foo ## __LINE__ 65// 66// will result in the token foo__LINE__, instead of foo followed by 67// the current line number. For more details, see 68// http://www.parashift.com/c++-faq-lite/misc-technical-issues.html#faq-39.6 69#define GTEST_CONCAT_TOKEN_(foo, bar) GTEST_CONCAT_TOKEN_IMPL_(foo, bar) 70#define GTEST_CONCAT_TOKEN_IMPL_(foo, bar) foo ## bar 71 72// Google Test defines the testing::Message class to allow construction of 73// test messages via the << operator. The idea is that anything 74// streamable to std::ostream can be streamed to a testing::Message. 75// This allows a user to use his own types in Google Test assertions by 76// overloading the << operator. 77// 78// util/gtl/stl_logging-inl.h overloads << for STL containers. These 79// overloads cannot be defined in the std namespace, as that will be 80// undefined behavior. Therefore, they are defined in the global 81// namespace instead. 82// 83// C++'s symbol lookup rule (i.e. Koenig lookup) says that these 84// overloads are visible in either the std namespace or the global 85// namespace, but not other namespaces, including the testing 86// namespace which Google Test's Message class is in. 87// 88// To allow STL containers (and other types that has a << operator 89// defined in the global namespace) to be used in Google Test assertions, 90// testing::Message must access the custom << operator from the global 91// namespace. Hence this helper function. 92// 93// Note: Jeffrey Yasskin suggested an alternative fix by "using 94// ::operator<<;" in the definition of Message's operator<<. That fix 95// doesn't require a helper function, but unfortunately doesn't 96// compile with MSVC. 97 98// LLVM INTERNAL CHANGE: To allow operator<< to work with both 99// std::ostreams and LLVM's raw_ostreams, we define a special 100// std::ostream with an implicit conversion to raw_ostream& and stream 101// to that. This causes the compiler to prefer std::ostream overloads 102// but still find raw_ostream& overloads. 103namespace llvm { 104class convertible_fwd_ostream : public std::ostream { 105 std::ostream& os_; 106 raw_os_ostream ros_; 107 108public: 109 convertible_fwd_ostream(std::ostream& os) 110 : std::ostream(os.rdbuf()), os_(os), ros_(*this) {} 111 operator raw_ostream&() { return ros_; } 112}; 113} 114template <typename T> 115inline void GTestStreamToHelper(std::ostream* os, const T& val) { 116 llvm::convertible_fwd_ostream cos(*os); 117 cos << val; 118} 119 120class ProtocolMessage; 121namespace proto2 { class Message; } 122 123namespace testing { 124 125// Forward declarations. 126 127class AssertionResult; // Result of an assertion. 128class Message; // Represents a failure message. 129class Test; // Represents a test. 130class TestInfo; // Information about a test. 131class TestPartResult; // Result of a test part. 132class UnitTest; // A collection of test cases. 133 134template <typename T> 135::std::string PrintToString(const T& value); 136 137namespace internal { 138 139struct TraceInfo; // Information about a trace point. 140class ScopedTrace; // Implements scoped trace. 141class TestInfoImpl; // Opaque implementation of TestInfo 142class UnitTestImpl; // Opaque implementation of UnitTest 143 144// How many times InitGoogleTest() has been called. 145extern int g_init_gtest_count; 146 147// The text used in failure messages to indicate the start of the 148// stack trace. 149GTEST_API_ extern const char kStackTraceMarker[]; 150 151// A secret type that Google Test users don't know about. It has no 152// definition on purpose. Therefore it's impossible to create a 153// Secret object, which is what we want. 154class Secret; 155 156// Two overloaded helpers for checking at compile time whether an 157// expression is a null pointer literal (i.e. NULL or any 0-valued 158// compile-time integral constant). Their return values have 159// different sizes, so we can use sizeof() to test which version is 160// picked by the compiler. These helpers have no implementations, as 161// we only need their signatures. 162// 163// Given IsNullLiteralHelper(x), the compiler will pick the first 164// version if x can be implicitly converted to Secret*, and pick the 165// second version otherwise. Since Secret is a secret and incomplete 166// type, the only expression a user can write that has type Secret* is 167// a null pointer literal. Therefore, we know that x is a null 168// pointer literal if and only if the first version is picked by the 169// compiler. 170char IsNullLiteralHelper(Secret* p); 171char (&IsNullLiteralHelper(...))[2]; // NOLINT 172 173// A compile-time bool constant that is true if and only if x is a 174// null pointer literal (i.e. NULL or any 0-valued compile-time 175// integral constant). 176#ifdef GTEST_ELLIPSIS_NEEDS_POD_ 177// We lose support for NULL detection where the compiler doesn't like 178// passing non-POD classes through ellipsis (...). 179# define GTEST_IS_NULL_LITERAL_(x) false 180#else 181# define GTEST_IS_NULL_LITERAL_(x) \ 182 (sizeof(::testing::internal::IsNullLiteralHelper(x)) == 1) 183#endif // GTEST_ELLIPSIS_NEEDS_POD_ 184 185// Appends the user-supplied message to the Google-Test-generated message. 186GTEST_API_ String AppendUserMessage(const String& gtest_msg, 187 const Message& user_msg); 188 189// A helper class for creating scoped traces in user programs. 190class GTEST_API_ ScopedTrace { 191 public: 192 // The c'tor pushes the given source file location and message onto 193 // a trace stack maintained by Google Test. 194 ScopedTrace(const char* file, int line, const Message& message); 195 196 // The d'tor pops the info pushed by the c'tor. 197 // 198 // Note that the d'tor is not virtual in order to be efficient. 199 // Don't inherit from ScopedTrace! 200 ~ScopedTrace(); 201 202 private: 203 GTEST_DISALLOW_COPY_AND_ASSIGN_(ScopedTrace); 204} GTEST_ATTRIBUTE_UNUSED_; // A ScopedTrace object does its job in its 205 // c'tor and d'tor. Therefore it doesn't 206 // need to be used otherwise. 207 208// Converts a streamable value to a String. A NULL pointer is 209// converted to "(null)". When the input value is a ::string, 210// ::std::string, ::wstring, or ::std::wstring object, each NUL 211// character in it is replaced with "\\0". 212// Declared here but defined in gtest.h, so that it has access 213// to the definition of the Message class, required by the ARM 214// compiler. 215template <typename T> 216String StreamableToString(const T& streamable); 217 218// The Symbian compiler has a bug that prevents it from selecting the 219// correct overload of FormatForComparisonFailureMessage (see below) 220// unless we pass the first argument by reference. If we do that, 221// however, Visual Age C++ 10.1 generates a compiler error. Therefore 222// we only apply the work-around for Symbian. 223#if defined(__SYMBIAN32__) 224# define GTEST_CREF_WORKAROUND_ const& 225#else 226# define GTEST_CREF_WORKAROUND_ 227#endif 228 229// When this operand is a const char* or char*, if the other operand 230// is a ::std::string or ::string, we print this operand as a C string 231// rather than a pointer (we do the same for wide strings); otherwise 232// we print it as a pointer to be safe. 233 234// This internal macro is used to avoid duplicated code. 235#define GTEST_FORMAT_IMPL_(operand2_type, operand1_printer)\ 236inline String FormatForComparisonFailureMessage(\ 237 operand2_type::value_type* GTEST_CREF_WORKAROUND_ str, \ 238 const operand2_type& /*operand2*/) {\ 239 return operand1_printer(str);\ 240}\ 241inline String FormatForComparisonFailureMessage(\ 242 const operand2_type::value_type* GTEST_CREF_WORKAROUND_ str, \ 243 const operand2_type& /*operand2*/) {\ 244 return operand1_printer(str);\ 245} 246 247GTEST_FORMAT_IMPL_(::std::string, String::ShowCStringQuoted) 248#if GTEST_HAS_STD_WSTRING 249GTEST_FORMAT_IMPL_(::std::wstring, String::ShowWideCStringQuoted) 250#endif // GTEST_HAS_STD_WSTRING 251 252#if GTEST_HAS_GLOBAL_STRING 253GTEST_FORMAT_IMPL_(::string, String::ShowCStringQuoted) 254#endif // GTEST_HAS_GLOBAL_STRING 255#if GTEST_HAS_GLOBAL_WSTRING 256GTEST_FORMAT_IMPL_(::wstring, String::ShowWideCStringQuoted) 257#endif // GTEST_HAS_GLOBAL_WSTRING 258 259#undef GTEST_FORMAT_IMPL_ 260 261// The next four overloads handle the case where the operand being 262// printed is a char/wchar_t pointer and the other operand is not a 263// string/wstring object. In such cases, we just print the operand as 264// a pointer to be safe. 265#define GTEST_FORMAT_CHAR_PTR_IMPL_(CharType) \ 266 template <typename T> \ 267 String FormatForComparisonFailureMessage(CharType* GTEST_CREF_WORKAROUND_ p, \ 268 const T&) { \ 269 return PrintToString(static_cast<const void*>(p)); \ 270 } 271 272GTEST_FORMAT_CHAR_PTR_IMPL_(char) 273GTEST_FORMAT_CHAR_PTR_IMPL_(const char) 274GTEST_FORMAT_CHAR_PTR_IMPL_(wchar_t) 275GTEST_FORMAT_CHAR_PTR_IMPL_(const wchar_t) 276 277#undef GTEST_FORMAT_CHAR_PTR_IMPL_ 278 279// Constructs and returns the message for an equality assertion 280// (e.g. ASSERT_EQ, EXPECT_STREQ, etc) failure. 281// 282// The first four parameters are the expressions used in the assertion 283// and their values, as strings. For example, for ASSERT_EQ(foo, bar) 284// where foo is 5 and bar is 6, we have: 285// 286// expected_expression: "foo" 287// actual_expression: "bar" 288// expected_value: "5" 289// actual_value: "6" 290// 291// The ignoring_case parameter is true iff the assertion is a 292// *_STRCASEEQ*. When it's true, the string " (ignoring case)" will 293// be inserted into the message. 294GTEST_API_ AssertionResult EqFailure(const char* expected_expression, 295 const char* actual_expression, 296 const String& expected_value, 297 const String& actual_value, 298 bool ignoring_case); 299 300// Constructs a failure message for Boolean assertions such as EXPECT_TRUE. 301GTEST_API_ String GetBoolAssertionFailureMessage( 302 const AssertionResult& assertion_result, 303 const char* expression_text, 304 const char* actual_predicate_value, 305 const char* expected_predicate_value); 306 307// This template class represents an IEEE floating-point number 308// (either single-precision or double-precision, depending on the 309// template parameters). 310// 311// The purpose of this class is to do more sophisticated number 312// comparison. (Due to round-off error, etc, it's very unlikely that 313// two floating-points will be equal exactly. Hence a naive 314// comparison by the == operation often doesn't work.) 315// 316// Format of IEEE floating-point: 317// 318// The most-significant bit being the leftmost, an IEEE 319// floating-point looks like 320// 321// sign_bit exponent_bits fraction_bits 322// 323// Here, sign_bit is a single bit that designates the sign of the 324// number. 325// 326// For float, there are 8 exponent bits and 23 fraction bits. 327// 328// For double, there are 11 exponent bits and 52 fraction bits. 329// 330// More details can be found at 331// http://en.wikipedia.org/wiki/IEEE_floating-point_standard. 332// 333// Template parameter: 334// 335// RawType: the raw floating-point type (either float or double) 336template <typename RawType> 337class FloatingPoint { 338 public: 339 // Defines the unsigned integer type that has the same size as the 340 // floating point number. 341 typedef typename TypeWithSize<sizeof(RawType)>::UInt Bits; 342 343 // Constants. 344 345 // # of bits in a number. 346 static const size_t kBitCount = 8*sizeof(RawType); 347 348 // # of fraction bits in a number. 349 static const size_t kFractionBitCount = 350 std::numeric_limits<RawType>::digits - 1; 351 352 // # of exponent bits in a number. 353 static const size_t kExponentBitCount = kBitCount - 1 - kFractionBitCount; 354 355 // The mask for the sign bit. 356 static const Bits kSignBitMask = static_cast<Bits>(1) << (kBitCount - 1); 357 358 // The mask for the fraction bits. 359 static const Bits kFractionBitMask = 360 ~static_cast<Bits>(0) >> (kExponentBitCount + 1); 361 362 // The mask for the exponent bits. 363 static const Bits kExponentBitMask = ~(kSignBitMask | kFractionBitMask); 364 365 // How many ULP's (Units in the Last Place) we want to tolerate when 366 // comparing two numbers. The larger the value, the more error we 367 // allow. A 0 value means that two numbers must be exactly the same 368 // to be considered equal. 369 // 370 // The maximum error of a single floating-point operation is 0.5 371 // units in the last place. On Intel CPU's, all floating-point 372 // calculations are done with 80-bit precision, while double has 64 373 // bits. Therefore, 4 should be enough for ordinary use. 374 // 375 // See the following article for more details on ULP: 376 // http://www.cygnus-software.com/papers/comparingfloats/comparingfloats.htm. 377 static const size_t kMaxUlps = 4; 378 379 // Constructs a FloatingPoint from a raw floating-point number. 380 // 381 // On an Intel CPU, passing a non-normalized NAN (Not a Number) 382 // around may change its bits, although the new value is guaranteed 383 // to be also a NAN. Therefore, don't expect this constructor to 384 // preserve the bits in x when x is a NAN. 385 explicit FloatingPoint(const RawType& x) { u_.value_ = x; } 386 387 // Static methods 388 389 // Reinterprets a bit pattern as a floating-point number. 390 // 391 // This function is needed to test the AlmostEquals() method. 392 static RawType ReinterpretBits(const Bits bits) { 393 FloatingPoint fp(0); 394 fp.u_.bits_ = bits; 395 return fp.u_.value_; 396 } 397 398 // Returns the floating-point number that represent positive infinity. 399 static RawType Infinity() { 400 return ReinterpretBits(kExponentBitMask); 401 } 402 403 // Non-static methods 404 405 // Returns the bits that represents this number. 406 const Bits &bits() const { return u_.bits_; } 407 408 // Returns the exponent bits of this number. 409 Bits exponent_bits() const { return kExponentBitMask & u_.bits_; } 410 411 // Returns the fraction bits of this number. 412 Bits fraction_bits() const { return kFractionBitMask & u_.bits_; } 413 414 // Returns the sign bit of this number. 415 Bits sign_bit() const { return kSignBitMask & u_.bits_; } 416 417 // Returns true iff this is NAN (not a number). 418 bool is_nan() const { 419 // It's a NAN if the exponent bits are all ones and the fraction 420 // bits are not entirely zeros. 421 return (exponent_bits() == kExponentBitMask) && (fraction_bits() != 0); 422 } 423 424 // Returns true iff this number is at most kMaxUlps ULP's away from 425 // rhs. In particular, this function: 426 // 427 // - returns false if either number is (or both are) NAN. 428 // - treats really large numbers as almost equal to infinity. 429 // - thinks +0.0 and -0.0 are 0 DLP's apart. 430 bool AlmostEquals(const FloatingPoint& rhs) const { 431 // The IEEE standard says that any comparison operation involving 432 // a NAN must return false. 433 if (is_nan() || rhs.is_nan()) return false; 434 435 return DistanceBetweenSignAndMagnitudeNumbers(u_.bits_, rhs.u_.bits_) 436 <= kMaxUlps; 437 } 438 439 private: 440 // The data type used to store the actual floating-point number. 441 union FloatingPointUnion { 442 RawType value_; // The raw floating-point number. 443 Bits bits_; // The bits that represent the number. 444 }; 445 446 // Converts an integer from the sign-and-magnitude representation to 447 // the biased representation. More precisely, let N be 2 to the 448 // power of (kBitCount - 1), an integer x is represented by the 449 // unsigned number x + N. 450 // 451 // For instance, 452 // 453 // -N + 1 (the most negative number representable using 454 // sign-and-magnitude) is represented by 1; 455 // 0 is represented by N; and 456 // N - 1 (the biggest number representable using 457 // sign-and-magnitude) is represented by 2N - 1. 458 // 459 // Read http://en.wikipedia.org/wiki/Signed_number_representations 460 // for more details on signed number representations. 461 static Bits SignAndMagnitudeToBiased(const Bits &sam) { 462 if (kSignBitMask & sam) { 463 // sam represents a negative number. 464 return ~sam + 1; 465 } else { 466 // sam represents a positive number. 467 return kSignBitMask | sam; 468 } 469 } 470 471 // Given two numbers in the sign-and-magnitude representation, 472 // returns the distance between them as an unsigned number. 473 static Bits DistanceBetweenSignAndMagnitudeNumbers(const Bits &sam1, 474 const Bits &sam2) { 475 const Bits biased1 = SignAndMagnitudeToBiased(sam1); 476 const Bits biased2 = SignAndMagnitudeToBiased(sam2); 477 return (biased1 >= biased2) ? (biased1 - biased2) : (biased2 - biased1); 478 } 479 480 FloatingPointUnion u_; 481}; 482 483// Typedefs the instances of the FloatingPoint template class that we 484// care to use. 485typedef FloatingPoint<float> Float; 486typedef FloatingPoint<double> Double; 487 488// In order to catch the mistake of putting tests that use different 489// test fixture classes in the same test case, we need to assign 490// unique IDs to fixture classes and compare them. The TypeId type is 491// used to hold such IDs. The user should treat TypeId as an opaque 492// type: the only operation allowed on TypeId values is to compare 493// them for equality using the == operator. 494typedef const void* TypeId; 495 496template <typename T> 497class TypeIdHelper { 498 public: 499 // dummy_ must not have a const type. Otherwise an overly eager 500 // compiler (e.g. MSVC 7.1 & 8.0) may try to merge 501 // TypeIdHelper<T>::dummy_ for different Ts as an "optimization". 502 static bool dummy_; 503}; 504 505template <typename T> 506bool TypeIdHelper<T>::dummy_ = false; 507 508// GetTypeId<T>() returns the ID of type T. Different values will be 509// returned for different types. Calling the function twice with the 510// same type argument is guaranteed to return the same ID. 511template <typename T> 512TypeId GetTypeId() { 513 // The compiler is required to allocate a different 514 // TypeIdHelper<T>::dummy_ variable for each T used to instantiate 515 // the template. Therefore, the address of dummy_ is guaranteed to 516 // be unique. 517 return &(TypeIdHelper<T>::dummy_); 518} 519 520// Returns the type ID of ::testing::Test. Always call this instead 521// of GetTypeId< ::testing::Test>() to get the type ID of 522// ::testing::Test, as the latter may give the wrong result due to a 523// suspected linker bug when compiling Google Test as a Mac OS X 524// framework. 525GTEST_API_ TypeId GetTestTypeId(); 526 527// Defines the abstract factory interface that creates instances 528// of a Test object. 529class TestFactoryBase { 530 public: 531 virtual ~TestFactoryBase() {} 532 533 // Creates a test instance to run. The instance is both created and destroyed 534 // within TestInfoImpl::Run() 535 virtual Test* CreateTest() = 0; 536 537 protected: 538 TestFactoryBase() {} 539 540 private: 541 GTEST_DISALLOW_COPY_AND_ASSIGN_(TestFactoryBase); 542}; 543 544// This class provides implementation of TeastFactoryBase interface. 545// It is used in TEST and TEST_F macros. 546template <class TestClass> 547class TestFactoryImpl : public TestFactoryBase { 548 public: 549 virtual Test* CreateTest() { return new TestClass; } 550}; 551 552#if GTEST_OS_WINDOWS 553 554// Predicate-formatters for implementing the HRESULT checking macros 555// {ASSERT|EXPECT}_HRESULT_{SUCCEEDED|FAILED} 556// We pass a long instead of HRESULT to avoid causing an 557// include dependency for the HRESULT type. 558GTEST_API_ AssertionResult IsHRESULTSuccess(const char* expr, 559 long hr); // NOLINT 560GTEST_API_ AssertionResult IsHRESULTFailure(const char* expr, 561 long hr); // NOLINT 562 563#endif // GTEST_OS_WINDOWS 564 565// Types of SetUpTestCase() and TearDownTestCase() functions. 566typedef void (*SetUpTestCaseFunc)(); 567typedef void (*TearDownTestCaseFunc)(); 568 569// Creates a new TestInfo object and registers it with Google Test; 570// returns the created object. 571// 572// Arguments: 573// 574// test_case_name: name of the test case 575// name: name of the test 576// type_param the name of the test's type parameter, or NULL if 577// this is not a typed or a type-parameterized test. 578// value_param text representation of the test's value parameter, 579// or NULL if this is not a type-parameterized test. 580// fixture_class_id: ID of the test fixture class 581// set_up_tc: pointer to the function that sets up the test case 582// tear_down_tc: pointer to the function that tears down the test case 583// factory: pointer to the factory that creates a test object. 584// The newly created TestInfo instance will assume 585// ownership of the factory object. 586GTEST_API_ TestInfo* MakeAndRegisterTestInfo( 587 const char* test_case_name, const char* name, 588 const char* type_param, 589 const char* value_param, 590 TypeId fixture_class_id, 591 SetUpTestCaseFunc set_up_tc, 592 TearDownTestCaseFunc tear_down_tc, 593 TestFactoryBase* factory); 594 595// If *pstr starts with the given prefix, modifies *pstr to be right 596// past the prefix and returns true; otherwise leaves *pstr unchanged 597// and returns false. None of pstr, *pstr, and prefix can be NULL. 598GTEST_API_ bool SkipPrefix(const char* prefix, const char** pstr); 599 600#if GTEST_HAS_TYPED_TEST || GTEST_HAS_TYPED_TEST_P 601 602// State of the definition of a type-parameterized test case. 603class GTEST_API_ TypedTestCasePState { 604 public: 605 TypedTestCasePState() : registered_(false) {} 606 607 // Adds the given test name to defined_test_names_ and return true 608 // if the test case hasn't been registered; otherwise aborts the 609 // program. 610 bool AddTestName(const char* file, int line, const char* case_name, 611 const char* test_name) { 612 if (registered_) { 613 fprintf(stderr, "%s Test %s must be defined before " 614 "REGISTER_TYPED_TEST_CASE_P(%s, ...).\n", 615 FormatFileLocation(file, line).c_str(), test_name, case_name); 616 fflush(stderr); 617 posix::Abort(); 618 } 619 defined_test_names_.insert(test_name); 620 return true; 621 } 622 623 // Verifies that registered_tests match the test names in 624 // defined_test_names_; returns registered_tests if successful, or 625 // aborts the program otherwise. 626 const char* VerifyRegisteredTestNames( 627 const char* file, int line, const char* registered_tests); 628 629 private: 630 bool registered_; 631 ::std::set<const char*> defined_test_names_; 632}; 633 634// Skips to the first non-space char after the first comma in 'str'; 635// returns NULL if no comma is found in 'str'. 636inline const char* SkipComma(const char* str) { 637 const char* comma = strchr(str, ','); 638 if (comma == NULL) { 639 return NULL; 640 } 641 while (IsSpace(*(++comma))) {} 642 return comma; 643} 644 645// Returns the prefix of 'str' before the first comma in it; returns 646// the entire string if it contains no comma. 647inline String GetPrefixUntilComma(const char* str) { 648 const char* comma = strchr(str, ','); 649 return comma == NULL ? String(str) : String(str, comma - str); 650} 651 652// TypeParameterizedTest<Fixture, TestSel, Types>::Register() 653// registers a list of type-parameterized tests with Google Test. The 654// return value is insignificant - we just need to return something 655// such that we can call this function in a namespace scope. 656// 657// Implementation note: The GTEST_TEMPLATE_ macro declares a template 658// template parameter. It's defined in gtest-type-util.h. 659template <GTEST_TEMPLATE_ Fixture, class TestSel, typename Types> 660class TypeParameterizedTest { 661 public: 662 // 'index' is the index of the test in the type list 'Types' 663 // specified in INSTANTIATE_TYPED_TEST_CASE_P(Prefix, TestCase, 664 // Types). Valid values for 'index' are [0, N - 1] where N is the 665 // length of Types. 666 static bool Register(const char* prefix, const char* case_name, 667 const char* test_names, int index) { 668 typedef typename Types::Head Type; 669 typedef Fixture<Type> FixtureClass; 670 typedef typename GTEST_BIND_(TestSel, Type) TestClass; 671 672 // First, registers the first type-parameterized test in the type 673 // list. 674 MakeAndRegisterTestInfo( 675 String::Format("%s%s%s/%d", prefix, prefix[0] == '\0' ? "" : "/", 676 case_name, index).c_str(), 677 GetPrefixUntilComma(test_names).c_str(), 678 GetTypeName<Type>().c_str(), 679 NULL, // No value parameter. 680 GetTypeId<FixtureClass>(), 681 TestClass::SetUpTestCase, 682 TestClass::TearDownTestCase, 683 new TestFactoryImpl<TestClass>); 684 685 // Next, recurses (at compile time) with the tail of the type list. 686 return TypeParameterizedTest<Fixture, TestSel, typename Types::Tail> 687 ::Register(prefix, case_name, test_names, index + 1); 688 } 689}; 690 691// The base case for the compile time recursion. 692template <GTEST_TEMPLATE_ Fixture, class TestSel> 693class TypeParameterizedTest<Fixture, TestSel, Types0> { 694 public: 695 static bool Register(const char* /*prefix*/, const char* /*case_name*/, 696 const char* /*test_names*/, int /*index*/) { 697 return true; 698 } 699}; 700 701// TypeParameterizedTestCase<Fixture, Tests, Types>::Register() 702// registers *all combinations* of 'Tests' and 'Types' with Google 703// Test. The return value is insignificant - we just need to return 704// something such that we can call this function in a namespace scope. 705template <GTEST_TEMPLATE_ Fixture, typename Tests, typename Types> 706class TypeParameterizedTestCase { 707 public: 708 static bool Register(const char* prefix, const char* case_name, 709 const char* test_names) { 710 typedef typename Tests::Head Head; 711 712 // First, register the first test in 'Test' for each type in 'Types'. 713 TypeParameterizedTest<Fixture, Head, Types>::Register( 714 prefix, case_name, test_names, 0); 715 716 // Next, recurses (at compile time) with the tail of the test list. 717 return TypeParameterizedTestCase<Fixture, typename Tests::Tail, Types> 718 ::Register(prefix, case_name, SkipComma(test_names)); 719 } 720}; 721 722// The base case for the compile time recursion. 723template <GTEST_TEMPLATE_ Fixture, typename Types> 724class TypeParameterizedTestCase<Fixture, Templates0, Types> { 725 public: 726 static bool Register(const char* /*prefix*/, const char* /*case_name*/, 727 const char* /*test_names*/) { 728 return true; 729 } 730}; 731 732#endif // GTEST_HAS_TYPED_TEST || GTEST_HAS_TYPED_TEST_P 733 734// Returns the current OS stack trace as a String. 735// 736// The maximum number of stack frames to be included is specified by 737// the gtest_stack_trace_depth flag. The skip_count parameter 738// specifies the number of top frames to be skipped, which doesn't 739// count against the number of frames to be included. 740// 741// For example, if Foo() calls Bar(), which in turn calls 742// GetCurrentOsStackTraceExceptTop(..., 1), Foo() will be included in 743// the trace but Bar() and GetCurrentOsStackTraceExceptTop() won't. 744GTEST_API_ String GetCurrentOsStackTraceExceptTop(UnitTest* unit_test, 745 int skip_count); 746 747// Helpers for suppressing warnings on unreachable code or constant 748// condition. 749 750// Always returns true. 751GTEST_API_ bool AlwaysTrue(); 752 753// Always returns false. 754inline bool AlwaysFalse() { return !AlwaysTrue(); } 755 756// Helper for suppressing false warning from Clang on a const char* 757// variable declared in a conditional expression always being NULL in 758// the else branch. 759struct GTEST_API_ ConstCharPtr { 760 ConstCharPtr(const char* str) : value(str) {} 761 operator bool() const { return true; } 762 const char* value; 763}; 764 765// A simple Linear Congruential Generator for generating random 766// numbers with a uniform distribution. Unlike rand() and srand(), it 767// doesn't use global state (and therefore can't interfere with user 768// code). Unlike rand_r(), it's portable. An LCG isn't very random, 769// but it's good enough for our purposes. 770class GTEST_API_ Random { 771 public: 772 static const UInt32 kMaxRange = 1u << 31; 773 774 explicit Random(UInt32 seed) : state_(seed) {} 775 776 void Reseed(UInt32 seed) { state_ = seed; } 777 778 // Generates a random number from [0, range). Crashes if 'range' is 779 // 0 or greater than kMaxRange. 780 UInt32 Generate(UInt32 range); 781 782 private: 783 UInt32 state_; 784 GTEST_DISALLOW_COPY_AND_ASSIGN_(Random); 785}; 786 787// Defining a variable of type CompileAssertTypesEqual<T1, T2> will cause a 788// compiler error iff T1 and T2 are different types. 789template <typename T1, typename T2> 790struct CompileAssertTypesEqual; 791 792template <typename T> 793struct CompileAssertTypesEqual<T, T> { 794}; 795 796// Removes the reference from a type if it is a reference type, 797// otherwise leaves it unchanged. This is the same as 798// tr1::remove_reference, which is not widely available yet. 799template <typename T> 800struct RemoveReference { typedef T type; }; // NOLINT 801template <typename T> 802struct RemoveReference<T&> { typedef T type; }; // NOLINT 803 804// A handy wrapper around RemoveReference that works when the argument 805// T depends on template parameters. 806#define GTEST_REMOVE_REFERENCE_(T) \ 807 typename ::testing::internal::RemoveReference<T>::type 808 809// Removes const from a type if it is a const type, otherwise leaves 810// it unchanged. This is the same as tr1::remove_const, which is not 811// widely available yet. 812template <typename T> 813struct RemoveConst { typedef T type; }; // NOLINT 814template <typename T> 815struct RemoveConst<const T> { typedef T type; }; // NOLINT 816 817// MSVC 8.0, Sun C++, and IBM XL C++ have a bug which causes the above 818// definition to fail to remove the const in 'const int[3]' and 'const 819// char[3][4]'. The following specialization works around the bug. 820// However, it causes trouble with GCC and thus needs to be 821// conditionally compiled. 822#if defined(_MSC_VER) || defined(__SUNPRO_CC) || defined(__IBMCPP__) 823template <typename T, size_t N> 824struct RemoveConst<const T[N]> { 825 typedef typename RemoveConst<T>::type type[N]; 826}; 827#endif 828 829// A handy wrapper around RemoveConst that works when the argument 830// T depends on template parameters. 831#define GTEST_REMOVE_CONST_(T) \ 832 typename ::testing::internal::RemoveConst<T>::type 833 834// Turns const U&, U&, const U, and U all into U. 835#define GTEST_REMOVE_REFERENCE_AND_CONST_(T) \ 836 GTEST_REMOVE_CONST_(GTEST_REMOVE_REFERENCE_(T)) 837 838// Adds reference to a type if it is not a reference type, 839// otherwise leaves it unchanged. This is the same as 840// tr1::add_reference, which is not widely available yet. 841template <typename T> 842struct AddReference { typedef T& type; }; // NOLINT 843template <typename T> 844struct AddReference<T&> { typedef T& type; }; // NOLINT 845 846// A handy wrapper around AddReference that works when the argument T 847// depends on template parameters. 848#define GTEST_ADD_REFERENCE_(T) \ 849 typename ::testing::internal::AddReference<T>::type 850 851// Adds a reference to const on top of T as necessary. For example, 852// it transforms 853// 854// char ==> const char& 855// const char ==> const char& 856// char& ==> const char& 857// const char& ==> const char& 858// 859// The argument T must depend on some template parameters. 860#define GTEST_REFERENCE_TO_CONST_(T) \ 861 GTEST_ADD_REFERENCE_(const GTEST_REMOVE_REFERENCE_(T)) 862 863// ImplicitlyConvertible<From, To>::value is a compile-time bool 864// constant that's true iff type From can be implicitly converted to 865// type To. 866template <typename From, typename To> 867class ImplicitlyConvertible { 868 private: 869 // We need the following helper functions only for their types. 870 // They have no implementations. 871 872 // MakeFrom() is an expression whose type is From. We cannot simply 873 // use From(), as the type From may not have a public default 874 // constructor. 875 static From MakeFrom(); 876 877 // These two functions are overloaded. Given an expression 878 // Helper(x), the compiler will pick the first version if x can be 879 // implicitly converted to type To; otherwise it will pick the 880 // second version. 881 // 882 // The first version returns a value of size 1, and the second 883 // version returns a value of size 2. Therefore, by checking the 884 // size of Helper(x), which can be done at compile time, we can tell 885 // which version of Helper() is used, and hence whether x can be 886 // implicitly converted to type To. 887 static char Helper(To); 888 static char (&Helper(...))[2]; // NOLINT 889 890 // We have to put the 'public' section after the 'private' section, 891 // or MSVC refuses to compile the code. 892 public: 893 // MSVC warns about implicitly converting from double to int for 894 // possible loss of data, so we need to temporarily disable the 895 // warning. 896#ifdef _MSC_VER 897# pragma warning(push) // Saves the current warning state. 898# pragma warning(disable:4244) // Temporarily disables warning 4244. 899 900 static const bool value = 901 sizeof(Helper(ImplicitlyConvertible::MakeFrom())) == 1; 902# pragma warning(pop) // Restores the warning state. 903#elif defined(__BORLANDC__) 904 // C++Builder cannot use member overload resolution during template 905 // instantiation. The simplest workaround is to use its C++0x type traits 906 // functions (C++Builder 2009 and above only). 907 static const bool value = __is_convertible(From, To); 908#else 909 static const bool value = 910 sizeof(Helper(ImplicitlyConvertible::MakeFrom())) == 1; 911#endif // _MSV_VER 912}; 913template <typename From, typename To> 914const bool ImplicitlyConvertible<From, To>::value; 915 916// IsAProtocolMessage<T>::value is a compile-time bool constant that's 917// true iff T is type ProtocolMessage, proto2::Message, or a subclass 918// of those. 919template <typename T> 920struct IsAProtocolMessage 921 : public bool_constant< 922 ImplicitlyConvertible<const T*, const ::ProtocolMessage*>::value || 923 ImplicitlyConvertible<const T*, const ::proto2::Message*>::value> { 924}; 925 926// When the compiler sees expression IsContainerTest<C>(0), if C is an 927// STL-style container class, the first overload of IsContainerTest 928// will be viable (since both C::iterator* and C::const_iterator* are 929// valid types and NULL can be implicitly converted to them). It will 930// be picked over the second overload as 'int' is a perfect match for 931// the type of argument 0. If C::iterator or C::const_iterator is not 932// a valid type, the first overload is not viable, and the second 933// overload will be picked. Therefore, we can determine whether C is 934// a container class by checking the type of IsContainerTest<C>(0). 935// The value of the expression is insignificant. 936// 937// Note that we look for both C::iterator and C::const_iterator. The 938// reason is that C++ injects the name of a class as a member of the 939// class itself (e.g. you can refer to class iterator as either 940// 'iterator' or 'iterator::iterator'). If we look for C::iterator 941// only, for example, we would mistakenly think that a class named 942// iterator is an STL container. 943// 944// Also note that the simpler approach of overloading 945// IsContainerTest(typename C::const_iterator*) and 946// IsContainerTest(...) doesn't work with Visual Age C++ and Sun C++. 947typedef int IsContainer; 948template <class C> 949IsContainer IsContainerTest(int /* dummy */, 950 typename C::iterator* /* it */ = NULL, 951 typename C::const_iterator* /* const_it */ = NULL) { 952 return 0; 953} 954 955typedef char IsNotContainer; 956template <class C> 957IsNotContainer IsContainerTest(long /* dummy */) { return '\0'; } 958 959// EnableIf<condition>::type is void when 'Cond' is true, and 960// undefined when 'Cond' is false. To use SFINAE to make a function 961// overload only apply when a particular expression is true, add 962// "typename EnableIf<expression>::type* = 0" as the last parameter. 963template<bool> struct EnableIf; 964template<> struct EnableIf<true> { typedef void type; }; // NOLINT 965 966// Utilities for native arrays. 967 968// ArrayEq() compares two k-dimensional native arrays using the 969// elements' operator==, where k can be any integer >= 0. When k is 970// 0, ArrayEq() degenerates into comparing a single pair of values. 971 972template <typename T, typename U> 973bool ArrayEq(const T* lhs, size_t size, const U* rhs); 974 975// This generic version is used when k is 0. 976template <typename T, typename U> 977inline bool ArrayEq(const T& lhs, const U& rhs) { return lhs == rhs; } 978 979// This overload is used when k >= 1. 980template <typename T, typename U, size_t N> 981inline bool ArrayEq(const T(&lhs)[N], const U(&rhs)[N]) { 982 return internal::ArrayEq(lhs, N, rhs); 983} 984 985// This helper reduces code bloat. If we instead put its logic inside 986// the previous ArrayEq() function, arrays with different sizes would 987// lead to different copies of the template code. 988template <typename T, typename U> 989bool ArrayEq(const T* lhs, size_t size, const U* rhs) { 990 for (size_t i = 0; i != size; i++) { 991 if (!internal::ArrayEq(lhs[i], rhs[i])) 992 return false; 993 } 994 return true; 995} 996 997// Finds the first element in the iterator range [begin, end) that 998// equals elem. Element may be a native array type itself. 999template <typename Iter, typename Element> 1000Iter ArrayAwareFind(Iter begin, Iter end, const Element& elem) { 1001 for (Iter it = begin; it != end; ++it) { 1002 if (internal::ArrayEq(*it, elem)) 1003 return it; 1004 } 1005 return end; 1006} 1007 1008// CopyArray() copies a k-dimensional native array using the elements' 1009// operator=, where k can be any integer >= 0. When k is 0, 1010// CopyArray() degenerates into copying a single value. 1011 1012template <typename T, typename U> 1013void CopyArray(const T* from, size_t size, U* to); 1014 1015// This generic version is used when k is 0. 1016template <typename T, typename U> 1017inline void CopyArray(const T& from, U* to) { *to = from; } 1018 1019// This overload is used when k >= 1. 1020template <typename T, typename U, size_t N> 1021inline void CopyArray(const T(&from)[N], U(*to)[N]) { 1022 internal::CopyArray(from, N, *to); 1023} 1024 1025// This helper reduces code bloat. If we instead put its logic inside 1026// the previous CopyArray() function, arrays with different sizes 1027// would lead to different copies of the template code. 1028template <typename T, typename U> 1029void CopyArray(const T* from, size_t size, U* to) { 1030 for (size_t i = 0; i != size; i++) { 1031 internal::CopyArray(from[i], to + i); 1032 } 1033} 1034 1035// The relation between an NativeArray object (see below) and the 1036// native array it represents. 1037enum RelationToSource { 1038 kReference, // The NativeArray references the native array. 1039 kCopy // The NativeArray makes a copy of the native array and 1040 // owns the copy. 1041}; 1042 1043// Adapts a native array to a read-only STL-style container. Instead 1044// of the complete STL container concept, this adaptor only implements 1045// members useful for Google Mock's container matchers. New members 1046// should be added as needed. To simplify the implementation, we only 1047// support Element being a raw type (i.e. having no top-level const or 1048// reference modifier). It's the client's responsibility to satisfy 1049// this requirement. Element can be an array type itself (hence 1050// multi-dimensional arrays are supported). 1051template <typename Element> 1052class NativeArray { 1053 public: 1054 // STL-style container typedefs. 1055 typedef Element value_type; 1056 typedef Element* iterator; 1057 typedef const Element* const_iterator; 1058 1059 // Constructs from a native array. 1060 NativeArray(const Element* array, size_t count, RelationToSource relation) { 1061 Init(array, count, relation); 1062 } 1063 1064 // Copy constructor. 1065 NativeArray(const NativeArray& rhs) { 1066 Init(rhs.array_, rhs.size_, rhs.relation_to_source_); 1067 } 1068 1069 ~NativeArray() { 1070 // Ensures that the user doesn't instantiate NativeArray with a 1071 // const or reference type. 1072 static_cast<void>(StaticAssertTypeEqHelper<Element, 1073 GTEST_REMOVE_REFERENCE_AND_CONST_(Element)>()); 1074 if (relation_to_source_ == kCopy) 1075 delete[] array_; 1076 } 1077 1078 // STL-style container methods. 1079 size_t size() const { return size_; } 1080 const_iterator begin() const { return array_; } 1081 const_iterator end() const { return array_ + size_; } 1082 bool operator==(const NativeArray& rhs) const { 1083 return size() == rhs.size() && 1084 ArrayEq(begin(), size(), rhs.begin()); 1085 } 1086 1087 private: 1088 // Initializes this object; makes a copy of the input array if 1089 // 'relation' is kCopy. 1090 void Init(const Element* array, size_t a_size, RelationToSource relation) { 1091 if (relation == kReference) { 1092 array_ = array; 1093 } else { 1094 Element* const copy = new Element[a_size]; 1095 CopyArray(array, a_size, copy); 1096 array_ = copy; 1097 } 1098 size_ = a_size; 1099 relation_to_source_ = relation; 1100 } 1101 1102 const Element* array_; 1103 size_t size_; 1104 RelationToSource relation_to_source_; 1105 1106 GTEST_DISALLOW_ASSIGN_(NativeArray); 1107}; 1108 1109} // namespace internal 1110} // namespace testing 1111 1112#define GTEST_MESSAGE_AT_(file, line, message, result_type) \ 1113 ::testing::internal::AssertHelper(result_type, file, line, message) \ 1114 = ::testing::Message() 1115 1116#define GTEST_MESSAGE_(message, result_type) \ 1117 GTEST_MESSAGE_AT_(__FILE__, __LINE__, message, result_type) 1118 1119#define GTEST_FATAL_FAILURE_(message) \ 1120 return GTEST_MESSAGE_(message, ::testing::TestPartResult::kFatalFailure) 1121 1122#define GTEST_NONFATAL_FAILURE_(message) \ 1123 GTEST_MESSAGE_(message, ::testing::TestPartResult::kNonFatalFailure) 1124 1125#define GTEST_SUCCESS_(message) \ 1126 GTEST_MESSAGE_(message, ::testing::TestPartResult::kSuccess) 1127 1128// Suppresses MSVC warnings 4072 (unreachable code) for the code following 1129// statement if it returns or throws (or doesn't return or throw in some 1130// situations). 1131#define GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement) \ 1132 if (::testing::internal::AlwaysTrue()) { statement; } 1133 1134#define GTEST_TEST_THROW_(statement, expected_exception, fail) \ 1135 GTEST_AMBIGUOUS_ELSE_BLOCKER_ \ 1136 if (::testing::internal::ConstCharPtr gtest_msg = "") { \ 1137 bool gtest_caught_expected = false; \ 1138 try { \ 1139 GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \ 1140 } \ 1141 catch (expected_exception const&) { \ 1142 gtest_caught_expected = true; \ 1143 } \ 1144 catch (...) { \ 1145 gtest_msg.value = \ 1146 "Expected: " #statement " throws an exception of type " \ 1147 #expected_exception ".\n Actual: it throws a different type."; \ 1148 goto GTEST_CONCAT_TOKEN_(gtest_label_testthrow_, __LINE__); \ 1149 } \ 1150 if (!gtest_caught_expected) { \ 1151 gtest_msg.value = \ 1152 "Expected: " #statement " throws an exception of type " \ 1153 #expected_exception ".\n Actual: it throws nothing."; \ 1154 goto GTEST_CONCAT_TOKEN_(gtest_label_testthrow_, __LINE__); \ 1155 } \ 1156 } else \ 1157 GTEST_CONCAT_TOKEN_(gtest_label_testthrow_, __LINE__): \ 1158 fail(gtest_msg.value) 1159 1160#define GTEST_TEST_NO_THROW_(statement, fail) \ 1161 GTEST_AMBIGUOUS_ELSE_BLOCKER_ \ 1162 if (::testing::internal::AlwaysTrue()) { \ 1163 try { \ 1164 GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \ 1165 } \ 1166 catch (...) { \ 1167 goto GTEST_CONCAT_TOKEN_(gtest_label_testnothrow_, __LINE__); \ 1168 } \ 1169 } else \ 1170 GTEST_CONCAT_TOKEN_(gtest_label_testnothrow_, __LINE__): \ 1171 fail("Expected: " #statement " doesn't throw an exception.\n" \ 1172 " Actual: it throws.") 1173 1174#define GTEST_TEST_ANY_THROW_(statement, fail) \ 1175 GTEST_AMBIGUOUS_ELSE_BLOCKER_ \ 1176 if (::testing::internal::AlwaysTrue()) { \ 1177 bool gtest_caught_any = false; \ 1178 try { \ 1179 GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \ 1180 } \ 1181 catch (...) { \ 1182 gtest_caught_any = true; \ 1183 } \ 1184 if (!gtest_caught_any) { \ 1185 goto GTEST_CONCAT_TOKEN_(gtest_label_testanythrow_, __LINE__); \ 1186 } \ 1187 } else \ 1188 GTEST_CONCAT_TOKEN_(gtest_label_testanythrow_, __LINE__): \ 1189 fail("Expected: " #statement " throws an exception.\n" \ 1190 " Actual: it doesn't.") 1191 1192 1193// Implements Boolean test assertions such as EXPECT_TRUE. expression can be 1194// either a boolean expression or an AssertionResult. text is a textual 1195// represenation of expression as it was passed into the EXPECT_TRUE. 1196#define GTEST_TEST_BOOLEAN_(expression, text, actual, expected, fail) \ 1197 GTEST_AMBIGUOUS_ELSE_BLOCKER_ \ 1198 if (const ::testing::AssertionResult gtest_ar_ = \ 1199 ::testing::AssertionResult(expression)) \ 1200 ; \ 1201 else \ 1202 fail(::testing::internal::GetBoolAssertionFailureMessage(\ 1203 gtest_ar_, text, #actual, #expected).c_str()) 1204 1205#define GTEST_TEST_NO_FATAL_FAILURE_(statement, fail) \ 1206 GTEST_AMBIGUOUS_ELSE_BLOCKER_ \ 1207 if (::testing::internal::AlwaysTrue()) { \ 1208 ::testing::internal::HasNewFatalFailureHelper gtest_fatal_failure_checker; \ 1209 GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \ 1210 if (gtest_fatal_failure_checker.has_new_fatal_failure()) { \ 1211 goto GTEST_CONCAT_TOKEN_(gtest_label_testnofatal_, __LINE__); \ 1212 } \ 1213 } else \ 1214 GTEST_CONCAT_TOKEN_(gtest_label_testnofatal_, __LINE__): \ 1215 fail("Expected: " #statement " doesn't generate new fatal " \ 1216 "failures in the current thread.\n" \ 1217 " Actual: it does.") 1218 1219// Expands to the name of the class that implements the given test. 1220#define GTEST_TEST_CLASS_NAME_(test_case_name, test_name) \ 1221 test_case_name##_##test_name##_Test 1222 1223// Helper macro for defining tests. 1224#define GTEST_TEST_(test_case_name, test_name, parent_class, parent_id)\ 1225class GTEST_TEST_CLASS_NAME_(test_case_name, test_name) : public parent_class {\ 1226 public:\ 1227 GTEST_TEST_CLASS_NAME_(test_case_name, test_name)() {}\ 1228 private:\ 1229 virtual void TestBody();\ 1230 static ::testing::TestInfo* const test_info_ GTEST_ATTRIBUTE_UNUSED_;\ 1231 GTEST_DISALLOW_COPY_AND_ASSIGN_(\ 1232 GTEST_TEST_CLASS_NAME_(test_case_name, test_name));\ 1233};\ 1234\ 1235::testing::TestInfo* const GTEST_TEST_CLASS_NAME_(test_case_name, test_name)\ 1236 ::test_info_ =\ 1237 ::testing::internal::MakeAndRegisterTestInfo(\ 1238 #test_case_name, #test_name, NULL, NULL, \ 1239 (parent_id), \ 1240 parent_class::SetUpTestCase, \ 1241 parent_class::TearDownTestCase, \ 1242 new ::testing::internal::TestFactoryImpl<\ 1243 GTEST_TEST_CLASS_NAME_(test_case_name, test_name)>);\ 1244void GTEST_TEST_CLASS_NAME_(test_case_name, test_name)::TestBody() 1245 1246#endif // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_INTERNAL_H_ 1247