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#if !GTEST_NO_LLVM_RAW_OSTREAM 60#include "llvm/Support/raw_os_ostream.h" 61#endif 62 63// Due to C++ preprocessor weirdness, we need double indirection to 64// concatenate two tokens when one of them is __LINE__. Writing 65// 66// foo ## __LINE__ 67// 68// will result in the token foo__LINE__, instead of foo followed by 69// the current line number. For more details, see 70// http://www.parashift.com/c++-faq-lite/misc-technical-issues.html#faq-39.6 71#define GTEST_CONCAT_TOKEN_(foo, bar) GTEST_CONCAT_TOKEN_IMPL_(foo, bar) 72#define GTEST_CONCAT_TOKEN_IMPL_(foo, bar) foo ## bar 73 74// Google Test defines the testing::Message class to allow construction of 75// test messages via the << operator. The idea is that anything 76// streamable to std::ostream can be streamed to a testing::Message. 77// This allows a user to use his own types in Google Test assertions by 78// overloading the << operator. 79// 80// util/gtl/stl_logging-inl.h overloads << for STL containers. These 81// overloads cannot be defined in the std namespace, as that will be 82// undefined behavior. Therefore, they are defined in the global 83// namespace instead. 84// 85// C++'s symbol lookup rule (i.e. Koenig lookup) says that these 86// overloads are visible in either the std namespace or the global 87// namespace, but not other namespaces, including the testing 88// namespace which Google Test's Message class is in. 89// 90// To allow STL containers (and other types that has a << operator 91// defined in the global namespace) to be used in Google Test assertions, 92// testing::Message must access the custom << operator from the global 93// namespace. Hence this helper function. 94// 95// Note: Jeffrey Yasskin suggested an alternative fix by "using 96// ::operator<<;" in the definition of Message's operator<<. That fix 97// doesn't require a helper function, but unfortunately doesn't 98// compile with MSVC. 99 100// LLVM INTERNAL CHANGE: To allow operator<< to work with both 101// std::ostreams and LLVM's raw_ostreams, we define a special 102// std::ostream with an implicit conversion to raw_ostream& and stream 103// to that. This causes the compiler to prefer std::ostream overloads 104// but still find raw_ostream& overloads. 105#if !GTEST_NO_LLVM_RAW_OSTREAM 106namespace llvm { 107class convertible_fwd_ostream : public std::ostream { 108 raw_os_ostream ros_; 109 110public: 111 convertible_fwd_ostream(std::ostream& os) 112 : std::ostream(os.rdbuf()), ros_(*this) {} 113 operator raw_ostream&() { return ros_; } 114}; 115} 116template <typename T> 117inline void GTestStreamToHelper(std::ostream* os, const T& val) { 118 llvm::convertible_fwd_ostream cos(*os); 119 cos << val; 120} 121#else 122template <typename T> 123inline void GTestStreamToHelper(std::ostream* os, const T& val) { 124 *os << val; 125} 126#endif 127 128class ProtocolMessage; 129namespace proto2 { class Message; } 130 131namespace testing { 132 133// Forward declarations. 134 135class AssertionResult; // Result of an assertion. 136class Message; // Represents a failure message. 137class Test; // Represents a test. 138class TestInfo; // Information about a test. 139class TestPartResult; // Result of a test part. 140class UnitTest; // A collection of test cases. 141 142template <typename T> 143::std::string PrintToString(const T& value); 144 145namespace internal { 146 147struct TraceInfo; // Information about a trace point. 148class ScopedTrace; // Implements scoped trace. 149class TestInfoImpl; // Opaque implementation of TestInfo 150class UnitTestImpl; // Opaque implementation of UnitTest 151 152// How many times InitGoogleTest() has been called. 153extern int g_init_gtest_count; 154 155// The text used in failure messages to indicate the start of the 156// stack trace. 157GTEST_API_ extern const char kStackTraceMarker[]; 158 159// A secret type that Google Test users don't know about. It has no 160// definition on purpose. Therefore it's impossible to create a 161// Secret object, which is what we want. 162class Secret; 163 164// Two overloaded helpers for checking at compile time whether an 165// expression is a null pointer literal (i.e. NULL or any 0-valued 166// compile-time integral constant). Their return values have 167// different sizes, so we can use sizeof() to test which version is 168// picked by the compiler. These helpers have no implementations, as 169// we only need their signatures. 170// 171// Given IsNullLiteralHelper(x), the compiler will pick the first 172// version if x can be implicitly converted to Secret*, and pick the 173// second version otherwise. Since Secret is a secret and incomplete 174// type, the only expression a user can write that has type Secret* is 175// a null pointer literal. Therefore, we know that x is a null 176// pointer literal if and only if the first version is picked by the 177// compiler. 178char IsNullLiteralHelper(Secret* p); 179char (&IsNullLiteralHelper(...))[2]; // NOLINT 180 181// A compile-time bool constant that is true if and only if x is a 182// null pointer literal (i.e. NULL or any 0-valued compile-time 183// integral constant). 184#ifdef GTEST_ELLIPSIS_NEEDS_POD_ 185// We lose support for NULL detection where the compiler doesn't like 186// passing non-POD classes through ellipsis (...). 187# define GTEST_IS_NULL_LITERAL_(x) false 188#else 189# define GTEST_IS_NULL_LITERAL_(x) \ 190 (sizeof(::testing::internal::IsNullLiteralHelper(x)) == 1) 191#endif // GTEST_ELLIPSIS_NEEDS_POD_ 192 193// Appends the user-supplied message to the Google-Test-generated message. 194GTEST_API_ String AppendUserMessage(const String& gtest_msg, 195 const Message& user_msg); 196 197// A helper class for creating scoped traces in user programs. 198class GTEST_API_ ScopedTrace { 199 public: 200 // The c'tor pushes the given source file location and message onto 201 // a trace stack maintained by Google Test. 202 ScopedTrace(const char* file, int line, const Message& message); 203 204 // The d'tor pops the info pushed by the c'tor. 205 // 206 // Note that the d'tor is not virtual in order to be efficient. 207 // Don't inherit from ScopedTrace! 208 ~ScopedTrace(); 209 210 private: 211 GTEST_DISALLOW_COPY_AND_ASSIGN_(ScopedTrace); 212} GTEST_ATTRIBUTE_UNUSED_; // A ScopedTrace object does its job in its 213 // c'tor and d'tor. Therefore it doesn't 214 // need to be used otherwise. 215 216// Converts a streamable value to a String. A NULL pointer is 217// converted to "(null)". When the input value is a ::string, 218// ::std::string, ::wstring, or ::std::wstring object, each NUL 219// character in it is replaced with "\\0". 220// Declared here but defined in gtest.h, so that it has access 221// to the definition of the Message class, required by the ARM 222// compiler. 223template <typename T> 224String StreamableToString(const T& streamable); 225 226// The Symbian compiler has a bug that prevents it from selecting the 227// correct overload of FormatForComparisonFailureMessage (see below) 228// unless we pass the first argument by reference. If we do that, 229// however, Visual Age C++ 10.1 generates a compiler error. Therefore 230// we only apply the work-around for Symbian. 231#if defined(__SYMBIAN32__) 232# define GTEST_CREF_WORKAROUND_ const& 233#else 234# define GTEST_CREF_WORKAROUND_ 235#endif 236 237// When this operand is a const char* or char*, if the other operand 238// is a ::std::string or ::string, we print this operand as a C string 239// rather than a pointer (we do the same for wide strings); otherwise 240// we print it as a pointer to be safe. 241 242// This internal macro is used to avoid duplicated code. 243#define GTEST_FORMAT_IMPL_(operand2_type, operand1_printer)\ 244inline String FormatForComparisonFailureMessage(\ 245 operand2_type::value_type* GTEST_CREF_WORKAROUND_ str, \ 246 const operand2_type& /*operand2*/) {\ 247 return operand1_printer(str);\ 248}\ 249inline String FormatForComparisonFailureMessage(\ 250 const operand2_type::value_type* GTEST_CREF_WORKAROUND_ str, \ 251 const operand2_type& /*operand2*/) {\ 252 return operand1_printer(str);\ 253} 254 255GTEST_FORMAT_IMPL_(::std::string, String::ShowCStringQuoted) 256#if GTEST_HAS_STD_WSTRING 257GTEST_FORMAT_IMPL_(::std::wstring, String::ShowWideCStringQuoted) 258#endif // GTEST_HAS_STD_WSTRING 259 260#if GTEST_HAS_GLOBAL_STRING 261GTEST_FORMAT_IMPL_(::string, String::ShowCStringQuoted) 262#endif // GTEST_HAS_GLOBAL_STRING 263#if GTEST_HAS_GLOBAL_WSTRING 264GTEST_FORMAT_IMPL_(::wstring, String::ShowWideCStringQuoted) 265#endif // GTEST_HAS_GLOBAL_WSTRING 266 267#undef GTEST_FORMAT_IMPL_ 268 269// The next four overloads handle the case where the operand being 270// printed is a char/wchar_t pointer and the other operand is not a 271// string/wstring object. In such cases, we just print the operand as 272// a pointer to be safe. 273#define GTEST_FORMAT_CHAR_PTR_IMPL_(CharType) \ 274 template <typename T> \ 275 String FormatForComparisonFailureMessage(CharType* GTEST_CREF_WORKAROUND_ p, \ 276 const T&) { \ 277 return PrintToString(static_cast<const void*>(p)); \ 278 } 279 280GTEST_FORMAT_CHAR_PTR_IMPL_(char) 281GTEST_FORMAT_CHAR_PTR_IMPL_(const char) 282GTEST_FORMAT_CHAR_PTR_IMPL_(wchar_t) 283GTEST_FORMAT_CHAR_PTR_IMPL_(const wchar_t) 284 285#undef GTEST_FORMAT_CHAR_PTR_IMPL_ 286 287// Constructs and returns the message for an equality assertion 288// (e.g. ASSERT_EQ, EXPECT_STREQ, etc) failure. 289// 290// The first four parameters are the expressions used in the assertion 291// and their values, as strings. For example, for ASSERT_EQ(foo, bar) 292// where foo is 5 and bar is 6, we have: 293// 294// expected_expression: "foo" 295// actual_expression: "bar" 296// expected_value: "5" 297// actual_value: "6" 298// 299// The ignoring_case parameter is true iff the assertion is a 300// *_STRCASEEQ*. When it's true, the string " (ignoring case)" will 301// be inserted into the message. 302GTEST_API_ AssertionResult EqFailure(const char* expected_expression, 303 const char* actual_expression, 304 const String& expected_value, 305 const String& actual_value, 306 bool ignoring_case); 307 308// Constructs a failure message for Boolean assertions such as EXPECT_TRUE. 309GTEST_API_ String GetBoolAssertionFailureMessage( 310 const AssertionResult& assertion_result, 311 const char* expression_text, 312 const char* actual_predicate_value, 313 const char* expected_predicate_value); 314 315// This template class represents an IEEE floating-point number 316// (either single-precision or double-precision, depending on the 317// template parameters). 318// 319// The purpose of this class is to do more sophisticated number 320// comparison. (Due to round-off error, etc, it's very unlikely that 321// two floating-points will be equal exactly. Hence a naive 322// comparison by the == operation often doesn't work.) 323// 324// Format of IEEE floating-point: 325// 326// The most-significant bit being the leftmost, an IEEE 327// floating-point looks like 328// 329// sign_bit exponent_bits fraction_bits 330// 331// Here, sign_bit is a single bit that designates the sign of the 332// number. 333// 334// For float, there are 8 exponent bits and 23 fraction bits. 335// 336// For double, there are 11 exponent bits and 52 fraction bits. 337// 338// More details can be found at 339// http://en.wikipedia.org/wiki/IEEE_floating-point_standard. 340// 341// Template parameter: 342// 343// RawType: the raw floating-point type (either float or double) 344template <typename RawType> 345class FloatingPoint { 346 public: 347 // Defines the unsigned integer type that has the same size as the 348 // floating point number. 349 typedef typename TypeWithSize<sizeof(RawType)>::UInt Bits; 350 351 // Constants. 352 353 // # of bits in a number. 354 static const size_t kBitCount = 8*sizeof(RawType); 355 356 // # of fraction bits in a number. 357 static const size_t kFractionBitCount = 358 std::numeric_limits<RawType>::digits - 1; 359 360 // # of exponent bits in a number. 361 static const size_t kExponentBitCount = kBitCount - 1 - kFractionBitCount; 362 363 // The mask for the sign bit. 364 static const Bits kSignBitMask = static_cast<Bits>(1) << (kBitCount - 1); 365 366 // The mask for the fraction bits. 367 static const Bits kFractionBitMask = 368 ~static_cast<Bits>(0) >> (kExponentBitCount + 1); 369 370 // The mask for the exponent bits. 371 static const Bits kExponentBitMask = ~(kSignBitMask | kFractionBitMask); 372 373 // How many ULP's (Units in the Last Place) we want to tolerate when 374 // comparing two numbers. The larger the value, the more error we 375 // allow. A 0 value means that two numbers must be exactly the same 376 // to be considered equal. 377 // 378 // The maximum error of a single floating-point operation is 0.5 379 // units in the last place. On Intel CPU's, all floating-point 380 // calculations are done with 80-bit precision, while double has 64 381 // bits. Therefore, 4 should be enough for ordinary use. 382 // 383 // See the following article for more details on ULP: 384 // http://www.cygnus-software.com/papers/comparingfloats/comparingfloats.htm. 385 static const size_t kMaxUlps = 4; 386 387 // Constructs a FloatingPoint from a raw floating-point number. 388 // 389 // On an Intel CPU, passing a non-normalized NAN (Not a Number) 390 // around may change its bits, although the new value is guaranteed 391 // to be also a NAN. Therefore, don't expect this constructor to 392 // preserve the bits in x when x is a NAN. 393 explicit FloatingPoint(const RawType& x) { u_.value_ = x; } 394 395 // Static methods 396 397 // Reinterprets a bit pattern as a floating-point number. 398 // 399 // This function is needed to test the AlmostEquals() method. 400 static RawType ReinterpretBits(const Bits bits) { 401 FloatingPoint fp(0); 402 fp.u_.bits_ = bits; 403 return fp.u_.value_; 404 } 405 406 // Returns the floating-point number that represent positive infinity. 407 static RawType Infinity() { 408 return ReinterpretBits(kExponentBitMask); 409 } 410 411 // Non-static methods 412 413 // Returns the bits that represents this number. 414 const Bits &bits() const { return u_.bits_; } 415 416 // Returns the exponent bits of this number. 417 Bits exponent_bits() const { return kExponentBitMask & u_.bits_; } 418 419 // Returns the fraction bits of this number. 420 Bits fraction_bits() const { return kFractionBitMask & u_.bits_; } 421 422 // Returns the sign bit of this number. 423 Bits sign_bit() const { return kSignBitMask & u_.bits_; } 424 425 // Returns true iff this is NAN (not a number). 426 bool is_nan() const { 427 // It's a NAN if the exponent bits are all ones and the fraction 428 // bits are not entirely zeros. 429 return (exponent_bits() == kExponentBitMask) && (fraction_bits() != 0); 430 } 431 432 // Returns true iff this number is at most kMaxUlps ULP's away from 433 // rhs. In particular, this function: 434 // 435 // - returns false if either number is (or both are) NAN. 436 // - treats really large numbers as almost equal to infinity. 437 // - thinks +0.0 and -0.0 are 0 DLP's apart. 438 bool AlmostEquals(const FloatingPoint& rhs) const { 439 // The IEEE standard says that any comparison operation involving 440 // a NAN must return false. 441 if (is_nan() || rhs.is_nan()) return false; 442 443 return DistanceBetweenSignAndMagnitudeNumbers(u_.bits_, rhs.u_.bits_) 444 <= kMaxUlps; 445 } 446 447 private: 448 // The data type used to store the actual floating-point number. 449 union FloatingPointUnion { 450 RawType value_; // The raw floating-point number. 451 Bits bits_; // The bits that represent the number. 452 }; 453 454 // Converts an integer from the sign-and-magnitude representation to 455 // the biased representation. More precisely, let N be 2 to the 456 // power of (kBitCount - 1), an integer x is represented by the 457 // unsigned number x + N. 458 // 459 // For instance, 460 // 461 // -N + 1 (the most negative number representable using 462 // sign-and-magnitude) is represented by 1; 463 // 0 is represented by N; and 464 // N - 1 (the biggest number representable using 465 // sign-and-magnitude) is represented by 2N - 1. 466 // 467 // Read http://en.wikipedia.org/wiki/Signed_number_representations 468 // for more details on signed number representations. 469 static Bits SignAndMagnitudeToBiased(const Bits &sam) { 470 if (kSignBitMask & sam) { 471 // sam represents a negative number. 472 return ~sam + 1; 473 } else { 474 // sam represents a positive number. 475 return kSignBitMask | sam; 476 } 477 } 478 479 // Given two numbers in the sign-and-magnitude representation, 480 // returns the distance between them as an unsigned number. 481 static Bits DistanceBetweenSignAndMagnitudeNumbers(const Bits &sam1, 482 const Bits &sam2) { 483 const Bits biased1 = SignAndMagnitudeToBiased(sam1); 484 const Bits biased2 = SignAndMagnitudeToBiased(sam2); 485 return (biased1 >= biased2) ? (biased1 - biased2) : (biased2 - biased1); 486 } 487 488 FloatingPointUnion u_; 489}; 490 491// Typedefs the instances of the FloatingPoint template class that we 492// care to use. 493typedef FloatingPoint<float> Float; 494typedef FloatingPoint<double> Double; 495 496// In order to catch the mistake of putting tests that use different 497// test fixture classes in the same test case, we need to assign 498// unique IDs to fixture classes and compare them. The TypeId type is 499// used to hold such IDs. The user should treat TypeId as an opaque 500// type: the only operation allowed on TypeId values is to compare 501// them for equality using the == operator. 502typedef const void* TypeId; 503 504template <typename T> 505class TypeIdHelper { 506 public: 507 // dummy_ must not have a const type. Otherwise an overly eager 508 // compiler (e.g. MSVC 7.1 & 8.0) may try to merge 509 // TypeIdHelper<T>::dummy_ for different Ts as an "optimization". 510 static bool dummy_; 511}; 512 513template <typename T> 514bool TypeIdHelper<T>::dummy_ = false; 515 516// GetTypeId<T>() returns the ID of type T. Different values will be 517// returned for different types. Calling the function twice with the 518// same type argument is guaranteed to return the same ID. 519template <typename T> 520TypeId GetTypeId() { 521 // The compiler is required to allocate a different 522 // TypeIdHelper<T>::dummy_ variable for each T used to instantiate 523 // the template. Therefore, the address of dummy_ is guaranteed to 524 // be unique. 525 return &(TypeIdHelper<T>::dummy_); 526} 527 528// Returns the type ID of ::testing::Test. Always call this instead 529// of GetTypeId< ::testing::Test>() to get the type ID of 530// ::testing::Test, as the latter may give the wrong result due to a 531// suspected linker bug when compiling Google Test as a Mac OS X 532// framework. 533GTEST_API_ TypeId GetTestTypeId(); 534 535// Defines the abstract factory interface that creates instances 536// of a Test object. 537class TestFactoryBase { 538 public: 539 virtual ~TestFactoryBase() {} 540 541 // Creates a test instance to run. The instance is both created and destroyed 542 // within TestInfoImpl::Run() 543 virtual Test* CreateTest() = 0; 544 545 protected: 546 TestFactoryBase() {} 547 548 private: 549 GTEST_DISALLOW_COPY_AND_ASSIGN_(TestFactoryBase); 550}; 551 552// This class provides implementation of TeastFactoryBase interface. 553// It is used in TEST and TEST_F macros. 554template <class TestClass> 555class TestFactoryImpl : public TestFactoryBase { 556 public: 557 virtual Test* CreateTest() { return new TestClass; } 558}; 559 560#if GTEST_OS_WINDOWS 561 562// Predicate-formatters for implementing the HRESULT checking macros 563// {ASSERT|EXPECT}_HRESULT_{SUCCEEDED|FAILED} 564// We pass a long instead of HRESULT to avoid causing an 565// include dependency for the HRESULT type. 566GTEST_API_ AssertionResult IsHRESULTSuccess(const char* expr, 567 long hr); // NOLINT 568GTEST_API_ AssertionResult IsHRESULTFailure(const char* expr, 569 long hr); // NOLINT 570 571#endif // GTEST_OS_WINDOWS 572 573// Types of SetUpTestCase() and TearDownTestCase() functions. 574typedef void (*SetUpTestCaseFunc)(); 575typedef void (*TearDownTestCaseFunc)(); 576 577// Creates a new TestInfo object and registers it with Google Test; 578// returns the created object. 579// 580// Arguments: 581// 582// test_case_name: name of the test case 583// name: name of the test 584// type_param the name of the test's type parameter, or NULL if 585// this is not a typed or a type-parameterized test. 586// value_param text representation of the test's value parameter, 587// or NULL if this is not a type-parameterized test. 588// fixture_class_id: ID of the test fixture class 589// set_up_tc: pointer to the function that sets up the test case 590// tear_down_tc: pointer to the function that tears down the test case 591// factory: pointer to the factory that creates a test object. 592// The newly created TestInfo instance will assume 593// ownership of the factory object. 594GTEST_API_ TestInfo* MakeAndRegisterTestInfo( 595 const char* test_case_name, const char* name, 596 const char* type_param, 597 const char* value_param, 598 TypeId fixture_class_id, 599 SetUpTestCaseFunc set_up_tc, 600 TearDownTestCaseFunc tear_down_tc, 601 TestFactoryBase* factory); 602 603// If *pstr starts with the given prefix, modifies *pstr to be right 604// past the prefix and returns true; otherwise leaves *pstr unchanged 605// and returns false. None of pstr, *pstr, and prefix can be NULL. 606GTEST_API_ bool SkipPrefix(const char* prefix, const char** pstr); 607 608#if GTEST_HAS_TYPED_TEST || GTEST_HAS_TYPED_TEST_P 609 610// State of the definition of a type-parameterized test case. 611class GTEST_API_ TypedTestCasePState { 612 public: 613 TypedTestCasePState() : registered_(false) {} 614 615 // Adds the given test name to defined_test_names_ and return true 616 // if the test case hasn't been registered; otherwise aborts the 617 // program. 618 bool AddTestName(const char* file, int line, const char* case_name, 619 const char* test_name) { 620 if (registered_) { 621 fprintf(stderr, "%s Test %s must be defined before " 622 "REGISTER_TYPED_TEST_CASE_P(%s, ...).\n", 623 FormatFileLocation(file, line).c_str(), test_name, case_name); 624 fflush(stderr); 625 posix::Abort(); 626 } 627 defined_test_names_.insert(test_name); 628 return true; 629 } 630 631 // Verifies that registered_tests match the test names in 632 // defined_test_names_; returns registered_tests if successful, or 633 // aborts the program otherwise. 634 const char* VerifyRegisteredTestNames( 635 const char* file, int line, const char* registered_tests); 636 637 private: 638 bool registered_; 639 ::std::set<const char*> defined_test_names_; 640}; 641 642// Skips to the first non-space char after the first comma in 'str'; 643// returns NULL if no comma is found in 'str'. 644inline const char* SkipComma(const char* str) { 645 const char* comma = strchr(str, ','); 646 if (comma == NULL) { 647 return NULL; 648 } 649 while (IsSpace(*(++comma))) {} 650 return comma; 651} 652 653// Returns the prefix of 'str' before the first comma in it; returns 654// the entire string if it contains no comma. 655inline String GetPrefixUntilComma(const char* str) { 656 const char* comma = strchr(str, ','); 657 return comma == NULL ? String(str) : String(str, comma - str); 658} 659 660// TypeParameterizedTest<Fixture, TestSel, Types>::Register() 661// registers a list of type-parameterized tests with Google Test. The 662// return value is insignificant - we just need to return something 663// such that we can call this function in a namespace scope. 664// 665// Implementation note: The GTEST_TEMPLATE_ macro declares a template 666// template parameter. It's defined in gtest-type-util.h. 667template <GTEST_TEMPLATE_ Fixture, class TestSel, typename Types> 668class TypeParameterizedTest { 669 public: 670 // 'index' is the index of the test in the type list 'Types' 671 // specified in INSTANTIATE_TYPED_TEST_CASE_P(Prefix, TestCase, 672 // Types). Valid values for 'index' are [0, N - 1] where N is the 673 // length of Types. 674 static bool Register(const char* prefix, const char* case_name, 675 const char* test_names, int index) { 676 typedef typename Types::Head Type; 677 typedef Fixture<Type> FixtureClass; 678 typedef typename GTEST_BIND_(TestSel, Type) TestClass; 679 680 // First, registers the first type-parameterized test in the type 681 // list. 682 MakeAndRegisterTestInfo( 683 String::Format("%s%s%s/%d", prefix, prefix[0] == '\0' ? "" : "/", 684 case_name, index).c_str(), 685 GetPrefixUntilComma(test_names).c_str(), 686 GetTypeName<Type>().c_str(), 687 NULL, // No value parameter. 688 GetTypeId<FixtureClass>(), 689 TestClass::SetUpTestCase, 690 TestClass::TearDownTestCase, 691 new TestFactoryImpl<TestClass>); 692 693 // Next, recurses (at compile time) with the tail of the type list. 694 return TypeParameterizedTest<Fixture, TestSel, typename Types::Tail> 695 ::Register(prefix, case_name, test_names, index + 1); 696 } 697}; 698 699// The base case for the compile time recursion. 700template <GTEST_TEMPLATE_ Fixture, class TestSel> 701class TypeParameterizedTest<Fixture, TestSel, Types0> { 702 public: 703 static bool Register(const char* /*prefix*/, const char* /*case_name*/, 704 const char* /*test_names*/, int /*index*/) { 705 return true; 706 } 707}; 708 709// TypeParameterizedTestCase<Fixture, Tests, Types>::Register() 710// registers *all combinations* of 'Tests' and 'Types' with Google 711// Test. The return value is insignificant - we just need to return 712// something such that we can call this function in a namespace scope. 713template <GTEST_TEMPLATE_ Fixture, typename Tests, typename Types> 714class TypeParameterizedTestCase { 715 public: 716 static bool Register(const char* prefix, const char* case_name, 717 const char* test_names) { 718 typedef typename Tests::Head Head; 719 720 // First, register the first test in 'Test' for each type in 'Types'. 721 TypeParameterizedTest<Fixture, Head, Types>::Register( 722 prefix, case_name, test_names, 0); 723 724 // Next, recurses (at compile time) with the tail of the test list. 725 return TypeParameterizedTestCase<Fixture, typename Tests::Tail, Types> 726 ::Register(prefix, case_name, SkipComma(test_names)); 727 } 728}; 729 730// The base case for the compile time recursion. 731template <GTEST_TEMPLATE_ Fixture, typename Types> 732class TypeParameterizedTestCase<Fixture, Templates0, Types> { 733 public: 734 static bool Register(const char* /*prefix*/, const char* /*case_name*/, 735 const char* /*test_names*/) { 736 return true; 737 } 738}; 739 740#endif // GTEST_HAS_TYPED_TEST || GTEST_HAS_TYPED_TEST_P 741 742// Returns the current OS stack trace as a String. 743// 744// The maximum number of stack frames to be included is specified by 745// the gtest_stack_trace_depth flag. The skip_count parameter 746// specifies the number of top frames to be skipped, which doesn't 747// count against the number of frames to be included. 748// 749// For example, if Foo() calls Bar(), which in turn calls 750// GetCurrentOsStackTraceExceptTop(..., 1), Foo() will be included in 751// the trace but Bar() and GetCurrentOsStackTraceExceptTop() won't. 752GTEST_API_ String GetCurrentOsStackTraceExceptTop(UnitTest* unit_test, 753 int skip_count); 754 755// Helpers for suppressing warnings on unreachable code or constant 756// condition. 757 758// Always returns true. 759GTEST_API_ bool AlwaysTrue(); 760 761// Always returns false. 762inline bool AlwaysFalse() { return !AlwaysTrue(); } 763 764// Helper for suppressing false warning from Clang on a const char* 765// variable declared in a conditional expression always being NULL in 766// the else branch. 767struct GTEST_API_ ConstCharPtr { 768 ConstCharPtr(const char* str) : value(str) {} 769 operator bool() const { return true; } 770 const char* value; 771}; 772 773// A simple Linear Congruential Generator for generating random 774// numbers with a uniform distribution. Unlike rand() and srand(), it 775// doesn't use global state (and therefore can't interfere with user 776// code). Unlike rand_r(), it's portable. An LCG isn't very random, 777// but it's good enough for our purposes. 778class GTEST_API_ Random { 779 public: 780 static const UInt32 kMaxRange = 1u << 31; 781 782 explicit Random(UInt32 seed) : state_(seed) {} 783 784 void Reseed(UInt32 seed) { state_ = seed; } 785 786 // Generates a random number from [0, range). Crashes if 'range' is 787 // 0 or greater than kMaxRange. 788 UInt32 Generate(UInt32 range); 789 790 private: 791 UInt32 state_; 792 GTEST_DISALLOW_COPY_AND_ASSIGN_(Random); 793}; 794 795// Defining a variable of type CompileAssertTypesEqual<T1, T2> will cause a 796// compiler error iff T1 and T2 are different types. 797template <typename T1, typename T2> 798struct CompileAssertTypesEqual; 799 800template <typename T> 801struct CompileAssertTypesEqual<T, T> { 802}; 803 804// Removes the reference from a type if it is a reference type, 805// otherwise leaves it unchanged. This is the same as 806// tr1::remove_reference, which is not widely available yet. 807template <typename T> 808struct RemoveReference { typedef T type; }; // NOLINT 809template <typename T> 810struct RemoveReference<T&> { typedef T type; }; // NOLINT 811 812// A handy wrapper around RemoveReference that works when the argument 813// T depends on template parameters. 814#define GTEST_REMOVE_REFERENCE_(T) \ 815 typename ::testing::internal::RemoveReference<T>::type 816 817// Removes const from a type if it is a const type, otherwise leaves 818// it unchanged. This is the same as tr1::remove_const, which is not 819// widely available yet. 820template <typename T> 821struct RemoveConst { typedef T type; }; // NOLINT 822template <typename T> 823struct RemoveConst<const T> { typedef T type; }; // NOLINT 824 825// MSVC 8.0, Sun C++, and IBM XL C++ have a bug which causes the above 826// definition to fail to remove the const in 'const int[3]' and 'const 827// char[3][4]'. The following specialization works around the bug. 828// However, it causes trouble with GCC and thus needs to be 829// conditionally compiled. 830#if defined(_MSC_VER) || defined(__SUNPRO_CC) || defined(__IBMCPP__) 831template <typename T, size_t N> 832struct RemoveConst<const T[N]> { 833 typedef typename RemoveConst<T>::type type[N]; 834}; 835#endif 836 837// A handy wrapper around RemoveConst that works when the argument 838// T depends on template parameters. 839#define GTEST_REMOVE_CONST_(T) \ 840 typename ::testing::internal::RemoveConst<T>::type 841 842// Turns const U&, U&, const U, and U all into U. 843#define GTEST_REMOVE_REFERENCE_AND_CONST_(T) \ 844 GTEST_REMOVE_CONST_(GTEST_REMOVE_REFERENCE_(T)) 845 846// Adds reference to a type if it is not a reference type, 847// otherwise leaves it unchanged. This is the same as 848// tr1::add_reference, which is not widely available yet. 849template <typename T> 850struct AddReference { typedef T& type; }; // NOLINT 851template <typename T> 852struct AddReference<T&> { typedef T& type; }; // NOLINT 853 854// A handy wrapper around AddReference that works when the argument T 855// depends on template parameters. 856#define GTEST_ADD_REFERENCE_(T) \ 857 typename ::testing::internal::AddReference<T>::type 858 859// Adds a reference to const on top of T as necessary. For example, 860// it transforms 861// 862// char ==> const char& 863// const char ==> const char& 864// char& ==> const char& 865// const char& ==> const char& 866// 867// The argument T must depend on some template parameters. 868#define GTEST_REFERENCE_TO_CONST_(T) \ 869 GTEST_ADD_REFERENCE_(const GTEST_REMOVE_REFERENCE_(T)) 870 871// ImplicitlyConvertible<From, To>::value is a compile-time bool 872// constant that's true iff type From can be implicitly converted to 873// type To. 874template <typename From, typename To> 875class ImplicitlyConvertible { 876 private: 877 // We need the following helper functions only for their types. 878 // They have no implementations. 879 880 // MakeFrom() is an expression whose type is From. We cannot simply 881 // use From(), as the type From may not have a public default 882 // constructor. 883 static From MakeFrom(); 884 885 // These two functions are overloaded. Given an expression 886 // Helper(x), the compiler will pick the first version if x can be 887 // implicitly converted to type To; otherwise it will pick the 888 // second version. 889 // 890 // The first version returns a value of size 1, and the second 891 // version returns a value of size 2. Therefore, by checking the 892 // size of Helper(x), which can be done at compile time, we can tell 893 // which version of Helper() is used, and hence whether x can be 894 // implicitly converted to type To. 895 static char Helper(To); 896 static char (&Helper(...))[2]; // NOLINT 897 898 // We have to put the 'public' section after the 'private' section, 899 // or MSVC refuses to compile the code. 900 public: 901 // MSVC warns about implicitly converting from double to int for 902 // possible loss of data, so we need to temporarily disable the 903 // warning. 904#ifdef _MSC_VER 905# pragma warning(push) // Saves the current warning state. 906# pragma warning(disable:4244) // Temporarily disables warning 4244. 907 908 static const bool value = 909 sizeof(Helper(ImplicitlyConvertible::MakeFrom())) == 1; 910# pragma warning(pop) // Restores the warning state. 911#elif defined(__BORLANDC__) 912 // C++Builder cannot use member overload resolution during template 913 // instantiation. The simplest workaround is to use its C++0x type traits 914 // functions (C++Builder 2009 and above only). 915 static const bool value = __is_convertible(From, To); 916#else 917 static const bool value = 918 sizeof(Helper(ImplicitlyConvertible::MakeFrom())) == 1; 919#endif // _MSV_VER 920}; 921template <typename From, typename To> 922const bool ImplicitlyConvertible<From, To>::value; 923 924// IsAProtocolMessage<T>::value is a compile-time bool constant that's 925// true iff T is type ProtocolMessage, proto2::Message, or a subclass 926// of those. 927template <typename T> 928struct IsAProtocolMessage 929 : public bool_constant< 930 ImplicitlyConvertible<const T*, const ::ProtocolMessage*>::value || 931 ImplicitlyConvertible<const T*, const ::proto2::Message*>::value> { 932}; 933 934// When the compiler sees expression IsContainerTest<C>(0), if C is an 935// STL-style container class, the first overload of IsContainerTest 936// will be viable (since both C::iterator* and C::const_iterator* are 937// valid types and NULL can be implicitly converted to them). It will 938// be picked over the second overload as 'int' is a perfect match for 939// the type of argument 0. If C::iterator or C::const_iterator is not 940// a valid type, the first overload is not viable, and the second 941// overload will be picked. Therefore, we can determine whether C is 942// a container class by checking the type of IsContainerTest<C>(0). 943// The value of the expression is insignificant. 944// 945// Note that we look for both C::iterator and C::const_iterator. The 946// reason is that C++ injects the name of a class as a member of the 947// class itself (e.g. you can refer to class iterator as either 948// 'iterator' or 'iterator::iterator'). If we look for C::iterator 949// only, for example, we would mistakenly think that a class named 950// iterator is an STL container. 951// 952// Also note that the simpler approach of overloading 953// IsContainerTest(typename C::const_iterator*) and 954// IsContainerTest(...) doesn't work with Visual Age C++ and Sun C++. 955typedef int IsContainer; 956template <class C> 957IsContainer IsContainerTest(int /* dummy */, 958 typename C::iterator* /* it */ = NULL, 959 typename C::const_iterator* /* const_it */ = NULL) { 960 return 0; 961} 962 963typedef char IsNotContainer; 964template <class C> 965IsNotContainer IsContainerTest(long /* dummy */) { return '\0'; } 966 967// EnableIf<condition>::type is void when 'Cond' is true, and 968// undefined when 'Cond' is false. To use SFINAE to make a function 969// overload only apply when a particular expression is true, add 970// "typename EnableIf<expression>::type* = 0" as the last parameter. 971template<bool> struct EnableIf; 972template<> struct EnableIf<true> { typedef void type; }; // NOLINT 973 974// Utilities for native arrays. 975 976// ArrayEq() compares two k-dimensional native arrays using the 977// elements' operator==, where k can be any integer >= 0. When k is 978// 0, ArrayEq() degenerates into comparing a single pair of values. 979 980template <typename T, typename U> 981bool ArrayEq(const T* lhs, size_t size, const U* rhs); 982 983// This generic version is used when k is 0. 984template <typename T, typename U> 985inline bool ArrayEq(const T& lhs, const U& rhs) { return lhs == rhs; } 986 987// This overload is used when k >= 1. 988template <typename T, typename U, size_t N> 989inline bool ArrayEq(const T(&lhs)[N], const U(&rhs)[N]) { 990 return internal::ArrayEq(lhs, N, rhs); 991} 992 993// This helper reduces code bloat. If we instead put its logic inside 994// the previous ArrayEq() function, arrays with different sizes would 995// lead to different copies of the template code. 996template <typename T, typename U> 997bool ArrayEq(const T* lhs, size_t size, const U* rhs) { 998 for (size_t i = 0; i != size; i++) { 999 if (!internal::ArrayEq(lhs[i], rhs[i])) 1000 return false; 1001 } 1002 return true; 1003} 1004 1005// Finds the first element in the iterator range [begin, end) that 1006// equals elem. Element may be a native array type itself. 1007template <typename Iter, typename Element> 1008Iter ArrayAwareFind(Iter begin, Iter end, const Element& elem) { 1009 for (Iter it = begin; it != end; ++it) { 1010 if (internal::ArrayEq(*it, elem)) 1011 return it; 1012 } 1013 return end; 1014} 1015 1016// CopyArray() copies a k-dimensional native array using the elements' 1017// operator=, where k can be any integer >= 0. When k is 0, 1018// CopyArray() degenerates into copying a single value. 1019 1020template <typename T, typename U> 1021void CopyArray(const T* from, size_t size, U* to); 1022 1023// This generic version is used when k is 0. 1024template <typename T, typename U> 1025inline void CopyArray(const T& from, U* to) { *to = from; } 1026 1027// This overload is used when k >= 1. 1028template <typename T, typename U, size_t N> 1029inline void CopyArray(const T(&from)[N], U(*to)[N]) { 1030 internal::CopyArray(from, N, *to); 1031} 1032 1033// This helper reduces code bloat. If we instead put its logic inside 1034// the previous CopyArray() function, arrays with different sizes 1035// would lead to different copies of the template code. 1036template <typename T, typename U> 1037void CopyArray(const T* from, size_t size, U* to) { 1038 for (size_t i = 0; i != size; i++) { 1039 internal::CopyArray(from[i], to + i); 1040 } 1041} 1042 1043// The relation between an NativeArray object (see below) and the 1044// native array it represents. 1045enum RelationToSource { 1046 kReference, // The NativeArray references the native array. 1047 kCopy // The NativeArray makes a copy of the native array and 1048 // owns the copy. 1049}; 1050 1051// Adapts a native array to a read-only STL-style container. Instead 1052// of the complete STL container concept, this adaptor only implements 1053// members useful for Google Mock's container matchers. New members 1054// should be added as needed. To simplify the implementation, we only 1055// support Element being a raw type (i.e. having no top-level const or 1056// reference modifier). It's the client's responsibility to satisfy 1057// this requirement. Element can be an array type itself (hence 1058// multi-dimensional arrays are supported). 1059template <typename Element> 1060class NativeArray { 1061 public: 1062 // STL-style container typedefs. 1063 typedef Element value_type; 1064 typedef Element* iterator; 1065 typedef const Element* const_iterator; 1066 1067 // Constructs from a native array. 1068 NativeArray(const Element* array, size_t count, RelationToSource relation) { 1069 Init(array, count, relation); 1070 } 1071 1072 // Copy constructor. 1073 NativeArray(const NativeArray& rhs) { 1074 Init(rhs.array_, rhs.size_, rhs.relation_to_source_); 1075 } 1076 1077 ~NativeArray() { 1078 // Ensures that the user doesn't instantiate NativeArray with a 1079 // const or reference type. 1080 static_cast<void>(StaticAssertTypeEqHelper<Element, 1081 GTEST_REMOVE_REFERENCE_AND_CONST_(Element)>()); 1082 if (relation_to_source_ == kCopy) 1083 delete[] array_; 1084 } 1085 1086 // STL-style container methods. 1087 size_t size() const { return size_; } 1088 const_iterator begin() const { return array_; } 1089 const_iterator end() const { return array_ + size_; } 1090 bool operator==(const NativeArray& rhs) const { 1091 return size() == rhs.size() && 1092 ArrayEq(begin(), size(), rhs.begin()); 1093 } 1094 1095 private: 1096 // Initializes this object; makes a copy of the input array if 1097 // 'relation' is kCopy. 1098 void Init(const Element* array, size_t a_size, RelationToSource relation) { 1099 if (relation == kReference) { 1100 array_ = array; 1101 } else { 1102 Element* const copy = new Element[a_size]; 1103 CopyArray(array, a_size, copy); 1104 array_ = copy; 1105 } 1106 size_ = a_size; 1107 relation_to_source_ = relation; 1108 } 1109 1110 const Element* array_; 1111 size_t size_; 1112 RelationToSource relation_to_source_; 1113 1114 GTEST_DISALLOW_ASSIGN_(NativeArray); 1115}; 1116 1117} // namespace internal 1118} // namespace testing 1119 1120#define GTEST_MESSAGE_AT_(file, line, message, result_type) \ 1121 ::testing::internal::AssertHelper(result_type, file, line, message) \ 1122 = ::testing::Message() 1123 1124#define GTEST_MESSAGE_(message, result_type) \ 1125 GTEST_MESSAGE_AT_(__FILE__, __LINE__, message, result_type) 1126 1127#define GTEST_FATAL_FAILURE_(message) \ 1128 return GTEST_MESSAGE_(message, ::testing::TestPartResult::kFatalFailure) 1129 1130#define GTEST_NONFATAL_FAILURE_(message) \ 1131 GTEST_MESSAGE_(message, ::testing::TestPartResult::kNonFatalFailure) 1132 1133#define GTEST_SUCCESS_(message) \ 1134 GTEST_MESSAGE_(message, ::testing::TestPartResult::kSuccess) 1135 1136// Suppresses MSVC warnings 4072 (unreachable code) for the code following 1137// statement if it returns or throws (or doesn't return or throw in some 1138// situations). 1139#define GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement) \ 1140 if (::testing::internal::AlwaysTrue()) { statement; } 1141 1142#define GTEST_TEST_THROW_(statement, expected_exception, fail) \ 1143 GTEST_AMBIGUOUS_ELSE_BLOCKER_ \ 1144 if (::testing::internal::ConstCharPtr gtest_msg = "") { \ 1145 bool gtest_caught_expected = false; \ 1146 try { \ 1147 GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \ 1148 } \ 1149 catch (expected_exception const&) { \ 1150 gtest_caught_expected = true; \ 1151 } \ 1152 catch (...) { \ 1153 gtest_msg.value = \ 1154 "Expected: " #statement " throws an exception of type " \ 1155 #expected_exception ".\n Actual: it throws a different type."; \ 1156 goto GTEST_CONCAT_TOKEN_(gtest_label_testthrow_, __LINE__); \ 1157 } \ 1158 if (!gtest_caught_expected) { \ 1159 gtest_msg.value = \ 1160 "Expected: " #statement " throws an exception of type " \ 1161 #expected_exception ".\n Actual: it throws nothing."; \ 1162 goto GTEST_CONCAT_TOKEN_(gtest_label_testthrow_, __LINE__); \ 1163 } \ 1164 } else \ 1165 GTEST_CONCAT_TOKEN_(gtest_label_testthrow_, __LINE__): \ 1166 fail(gtest_msg.value) 1167 1168#define GTEST_TEST_NO_THROW_(statement, fail) \ 1169 GTEST_AMBIGUOUS_ELSE_BLOCKER_ \ 1170 if (::testing::internal::AlwaysTrue()) { \ 1171 try { \ 1172 GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \ 1173 } \ 1174 catch (...) { \ 1175 goto GTEST_CONCAT_TOKEN_(gtest_label_testnothrow_, __LINE__); \ 1176 } \ 1177 } else \ 1178 GTEST_CONCAT_TOKEN_(gtest_label_testnothrow_, __LINE__): \ 1179 fail("Expected: " #statement " doesn't throw an exception.\n" \ 1180 " Actual: it throws.") 1181 1182#define GTEST_TEST_ANY_THROW_(statement, fail) \ 1183 GTEST_AMBIGUOUS_ELSE_BLOCKER_ \ 1184 if (::testing::internal::AlwaysTrue()) { \ 1185 bool gtest_caught_any = false; \ 1186 try { \ 1187 GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \ 1188 } \ 1189 catch (...) { \ 1190 gtest_caught_any = true; \ 1191 } \ 1192 if (!gtest_caught_any) { \ 1193 goto GTEST_CONCAT_TOKEN_(gtest_label_testanythrow_, __LINE__); \ 1194 } \ 1195 } else \ 1196 GTEST_CONCAT_TOKEN_(gtest_label_testanythrow_, __LINE__): \ 1197 fail("Expected: " #statement " throws an exception.\n" \ 1198 " Actual: it doesn't.") 1199 1200 1201// Implements Boolean test assertions such as EXPECT_TRUE. expression can be 1202// either a boolean expression or an AssertionResult. text is a textual 1203// represenation of expression as it was passed into the EXPECT_TRUE. 1204#define GTEST_TEST_BOOLEAN_(expression, text, actual, expected, fail) \ 1205 GTEST_AMBIGUOUS_ELSE_BLOCKER_ \ 1206 if (const ::testing::AssertionResult gtest_ar_ = \ 1207 ::testing::AssertionResult(expression)) \ 1208 ; \ 1209 else \ 1210 fail(::testing::internal::GetBoolAssertionFailureMessage(\ 1211 gtest_ar_, text, #actual, #expected).c_str()) 1212 1213#define GTEST_TEST_NO_FATAL_FAILURE_(statement, fail) \ 1214 GTEST_AMBIGUOUS_ELSE_BLOCKER_ \ 1215 if (::testing::internal::AlwaysTrue()) { \ 1216 ::testing::internal::HasNewFatalFailureHelper gtest_fatal_failure_checker; \ 1217 GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \ 1218 if (gtest_fatal_failure_checker.has_new_fatal_failure()) { \ 1219 goto GTEST_CONCAT_TOKEN_(gtest_label_testnofatal_, __LINE__); \ 1220 } \ 1221 } else \ 1222 GTEST_CONCAT_TOKEN_(gtest_label_testnofatal_, __LINE__): \ 1223 fail("Expected: " #statement " doesn't generate new fatal " \ 1224 "failures in the current thread.\n" \ 1225 " Actual: it does.") 1226 1227// Expands to the name of the class that implements the given test. 1228#define GTEST_TEST_CLASS_NAME_(test_case_name, test_name) \ 1229 test_case_name##_##test_name##_Test 1230 1231// Helper macro for defining tests. 1232#define GTEST_TEST_(test_case_name, test_name, parent_class, parent_id)\ 1233class GTEST_TEST_CLASS_NAME_(test_case_name, test_name) : public parent_class {\ 1234 public:\ 1235 GTEST_TEST_CLASS_NAME_(test_case_name, test_name)() {}\ 1236 private:\ 1237 virtual void TestBody();\ 1238 static ::testing::TestInfo* const test_info_ GTEST_ATTRIBUTE_UNUSED_;\ 1239 GTEST_DISALLOW_COPY_AND_ASSIGN_(\ 1240 GTEST_TEST_CLASS_NAME_(test_case_name, test_name));\ 1241};\ 1242\ 1243::testing::TestInfo* const GTEST_TEST_CLASS_NAME_(test_case_name, test_name)\ 1244 ::test_info_ =\ 1245 ::testing::internal::MakeAndRegisterTestInfo(\ 1246 #test_case_name, #test_name, NULL, NULL, \ 1247 (parent_id), \ 1248 parent_class::SetUpTestCase, \ 1249 parent_class::TearDownTestCase, \ 1250 new ::testing::internal::TestFactoryImpl<\ 1251 GTEST_TEST_CLASS_NAME_(test_case_name, test_name)>);\ 1252void GTEST_TEST_CLASS_NAME_(test_case_name, test_name)::TestBody() 1253 1254#endif // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_INTERNAL_H_ 1255