Index: sdch/open_vcdiff/depot/opensource/open-vcdiff/src/gtest/internal/gtest-internal.h |
=================================================================== |
--- sdch/open_vcdiff/depot/opensource/open-vcdiff/src/gtest/internal/gtest-internal.h (revision 2678) |
+++ sdch/open_vcdiff/depot/opensource/open-vcdiff/src/gtest/internal/gtest-internal.h (working copy) |
@@ -1,546 +0,0 @@ |
-// Copyright 2005, Google Inc. |
-// All rights reserved. |
-// |
-// Redistribution and use in source and binary forms, with or without |
-// modification, are permitted provided that the following conditions are |
-// met: |
-// |
-// * Redistributions of source code must retain the above copyright |
-// notice, this list of conditions and the following disclaimer. |
-// * Redistributions in binary form must reproduce the above |
-// copyright notice, this list of conditions and the following disclaimer |
-// in the documentation and/or other materials provided with the |
-// distribution. |
-// * Neither the name of Google Inc. nor the names of its |
-// contributors may be used to endorse or promote products derived from |
-// this software without specific prior written permission. |
-// |
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
-// |
-// Authors: wan@google.com (Zhanyong Wan), eefacm@gmail.com (Sean Mcafee) |
-// |
-// The Google C++ Testing Framework (Google Test) |
-// |
-// This header file declares functions and macros used internally by |
-// Google Test. They are subject to change without notice. |
- |
-#ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_INTERNAL_H_ |
-#define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_INTERNAL_H_ |
- |
-#include <gtest/internal/gtest-port.h> |
- |
-#ifdef GTEST_OS_LINUX |
-#include <stdlib.h> |
-#include <sys/types.h> |
-#include <sys/wait.h> |
-#include <unistd.h> |
-#endif // GTEST_OS_LINUX |
- |
-#include <iomanip> // NOLINT |
-#include <limits> // NOLINT |
- |
-#include <gtest/internal/gtest-string.h> |
-#include <gtest/internal/gtest-filepath.h> |
- |
-// Due to C++ preprocessor weirdness, we need double indirection to |
-// concatenate two tokens when one of them is __LINE__. Writing |
-// |
-// foo ## __LINE__ |
-// |
-// will result in the token foo__LINE__, instead of foo followed by |
-// the current line number. For more details, see |
-// http://www.parashift.com/c++-faq-lite/misc-technical-issues.html#faq-39.6 |
-#define GTEST_CONCAT_TOKEN(foo, bar) GTEST_CONCAT_TOKEN_IMPL(foo, bar) |
-#define GTEST_CONCAT_TOKEN_IMPL(foo, bar) foo ## bar |
- |
-// Google Test defines the testing::Message class to allow construction of |
-// test messages via the << operator. The idea is that anything |
-// streamable to std::ostream can be streamed to a testing::Message. |
-// This allows a user to use his own types in Google Test assertions by |
-// overloading the << operator. |
-// |
-// util/gtl/stl_logging-inl.h overloads << for STL containers. These |
-// overloads cannot be defined in the std namespace, as that will be |
-// undefined behavior. Therefore, they are defined in the global |
-// namespace instead. |
-// |
-// C++'s symbol lookup rule (i.e. Koenig lookup) says that these |
-// overloads are visible in either the std namespace or the global |
-// namespace, but not other namespaces, including the testing |
-// namespace which Google Test's Message class is in. |
-// |
-// To allow STL containers (and other types that has a << operator |
-// defined in the global namespace) to be used in Google Test assertions, |
-// testing::Message must access the custom << operator from the global |
-// namespace. Hence this helper function. |
-// |
-// Note: Jeffrey Yasskin suggested an alternative fix by "using |
-// ::operator<<;" in the definition of Message's operator<<. That fix |
-// doesn't require a helper function, but unfortunately doesn't |
-// compile with MSVC. |
-template <typename T> |
-inline void GTestStreamToHelper(std::ostream* os, const T& val) { |
- *os << val; |
-} |
- |
-namespace testing { |
- |
-// Forward declaration of classes. |
- |
-class Message; // Represents a failure message. |
-class TestCase; // A collection of related tests. |
-class TestPartResult; // Result of a test part. |
-class TestInfo; // Information about a test. |
-class UnitTest; // A collection of test cases. |
-class UnitTestEventListenerInterface; // Listens to Google Test events. |
-class AssertionResult; // Result of an assertion. |
- |
-namespace internal { |
- |
-struct TraceInfo; // Information about a trace point. |
-class ScopedTrace; // Implements scoped trace. |
-class TestInfoImpl; // Opaque implementation of TestInfo |
-class TestResult; // Result of a single Test. |
-class UnitTestImpl; // Opaque implementation of UnitTest |
- |
-template <typename E> class List; // A generic list. |
-template <typename E> class ListNode; // A node in a generic list. |
- |
-// A secret type that Google Test users don't know about. It has no |
-// definition on purpose. Therefore it's impossible to create a |
-// Secret object, which is what we want. |
-class Secret; |
- |
-// Two overloaded helpers for checking at compile time whether an |
-// expression is a null pointer literal (i.e. NULL or any 0-valued |
-// compile-time integral constant). Their return values have |
-// different sizes, so we can use sizeof() to test which version is |
-// picked by the compiler. These helpers have no implementations, as |
-// we only need their signatures. |
-// |
-// Given IsNullLiteralHelper(x), the compiler will pick the first |
-// version if x can be implicitly converted to Secret*, and pick the |
-// second version otherwise. Since Secret is a secret and incomplete |
-// type, the only expression a user can write that has type Secret* is |
-// a null pointer literal. Therefore, we know that x is a null |
-// pointer literal if and only if the first version is picked by the |
-// compiler. |
-char IsNullLiteralHelper(Secret* p); |
-char (&IsNullLiteralHelper(...))[2]; // NOLINT |
- |
-// A compile-time bool constant that is true if and only if x is a |
-// null pointer literal (i.e. NULL or any 0-valued compile-time |
-// integral constant). |
-#ifdef __SYMBIAN32__ // Symbian |
-// Passing non-POD classes through ellipsis (...) crashes the ARM compiler. |
-// The Nokia Symbian compiler tries to instantiate a copy constructor for |
-// objects passed through ellipsis (...), failing for uncopyable objects. |
-// Hence we define this to false (and lose support for NULL detection). |
-#define GTEST_IS_NULL_LITERAL(x) false |
-#else // ! __SYMBIAN32__ |
-#define GTEST_IS_NULL_LITERAL(x) \ |
- (sizeof(::testing::internal::IsNullLiteralHelper(x)) == 1) |
-#endif // __SYMBIAN32__ |
- |
-// Appends the user-supplied message to the Google-Test-generated message. |
-String AppendUserMessage(const String& gtest_msg, |
- const Message& user_msg); |
- |
-// A helper class for creating scoped traces in user programs. |
-class ScopedTrace { |
- public: |
- // The c'tor pushes the given source file location and message onto |
- // a trace stack maintained by Google Test. |
- ScopedTrace(const char* file, int line, const Message& message); |
- |
- // The d'tor pops the info pushed by the c'tor. |
- // |
- // Note that the d'tor is not virtual in order to be efficient. |
- // Don't inherit from ScopedTrace! |
- ~ScopedTrace(); |
- |
- private: |
- GTEST_DISALLOW_COPY_AND_ASSIGN(ScopedTrace); |
-} GTEST_ATTRIBUTE_UNUSED; // A ScopedTrace object does its job in its |
- // c'tor and d'tor. Therefore it doesn't |
- // need to be used otherwise. |
- |
-// Converts a streamable value to a String. A NULL pointer is |
-// converted to "(null)". When the input value is a ::string, |
-// ::std::string, ::wstring, or ::std::wstring object, each NUL |
-// character in it is replaced with "\\0". |
-// Declared here but defined in gtest.h, so that it has access |
-// to the definition of the Message class, required by the ARM |
-// compiler. |
-template <typename T> |
-String StreamableToString(const T& streamable); |
- |
-// Formats a value to be used in a failure message. |
- |
-#ifdef __SYMBIAN32__ |
- |
-// These are needed as the Nokia Symbian Compiler cannot decide between |
-// const T& and const T* in a function template. The Nokia compiler _can_ |
-// decide between class template specializations for T and T*, so a |
-// tr1::type_traits-like is_pointer works, and we can overload on that. |
- |
-// This overload makes sure that all pointers (including |
-// those to char or wchar_t) are printed as raw pointers. |
-template <typename T> |
-inline String FormatValueForFailureMessage(internal::true_type dummy, |
- T* pointer) { |
- return StreamableToString(static_cast<const void*>(pointer)); |
-} |
- |
-template <typename T> |
-inline String FormatValueForFailureMessage(internal::false_type dummy, |
- const T& value) { |
- return StreamableToString(value); |
-} |
- |
-template <typename T> |
-inline String FormatForFailureMessage(const T& value) { |
- return FormatValueForFailureMessage( |
- typename internal::is_pointer<T>::type(), value); |
-} |
- |
-#else |
- |
-template <typename T> |
-inline String FormatForFailureMessage(const T& value) { |
- return StreamableToString(value); |
-} |
- |
-// This overload makes sure that all pointers (including |
-// those to char or wchar_t) are printed as raw pointers. |
-template <typename T> |
-inline String FormatForFailureMessage(T* pointer) { |
- return StreamableToString(static_cast<const void*>(pointer)); |
-} |
- |
-#endif // __SYMBIAN32__ |
- |
-// These overloaded versions handle narrow and wide characters. |
-String FormatForFailureMessage(char ch); |
-String FormatForFailureMessage(wchar_t wchar); |
- |
-// When this operand is a const char* or char*, and the other operand |
-// is a ::std::string or ::string, we print this operand as a C string |
-// rather than a pointer. We do the same for wide strings. |
- |
-// This internal macro is used to avoid duplicated code. |
-#define GTEST_FORMAT_IMPL(operand2_type, operand1_printer)\ |
-inline String FormatForComparisonFailureMessage(\ |
- operand2_type::value_type* str, const operand2_type& /*operand2*/) {\ |
- return operand1_printer(str);\ |
-}\ |
-inline String FormatForComparisonFailureMessage(\ |
- const operand2_type::value_type* str, const operand2_type& /*operand2*/) {\ |
- return operand1_printer(str);\ |
-} |
- |
-#if GTEST_HAS_STD_STRING |
-GTEST_FORMAT_IMPL(::std::string, String::ShowCStringQuoted) |
-#endif // GTEST_HAS_STD_STRING |
-#if GTEST_HAS_STD_WSTRING |
-GTEST_FORMAT_IMPL(::std::wstring, String::ShowWideCStringQuoted) |
-#endif // GTEST_HAS_STD_WSTRING |
- |
-#if GTEST_HAS_GLOBAL_STRING |
-GTEST_FORMAT_IMPL(::string, String::ShowCStringQuoted) |
-#endif // GTEST_HAS_GLOBAL_STRING |
-#if GTEST_HAS_GLOBAL_WSTRING |
-GTEST_FORMAT_IMPL(::wstring, String::ShowWideCStringQuoted) |
-#endif // GTEST_HAS_GLOBAL_WSTRING |
- |
-#undef GTEST_FORMAT_IMPL |
- |
-// Constructs and returns the message for an equality assertion |
-// (e.g. ASSERT_EQ, EXPECT_STREQ, etc) failure. |
-// |
-// The first four parameters are the expressions used in the assertion |
-// and their values, as strings. For example, for ASSERT_EQ(foo, bar) |
-// where foo is 5 and bar is 6, we have: |
-// |
-// expected_expression: "foo" |
-// actual_expression: "bar" |
-// expected_value: "5" |
-// actual_value: "6" |
-// |
-// The ignoring_case parameter is true iff the assertion is a |
-// *_STRCASEEQ*. When it's true, the string " (ignoring case)" will |
-// be inserted into the message. |
-AssertionResult EqFailure(const char* expected_expression, |
- const char* actual_expression, |
- const String& expected_value, |
- const String& actual_value, |
- bool ignoring_case); |
- |
- |
-// This template class represents an IEEE floating-point number |
-// (either single-precision or double-precision, depending on the |
-// template parameters). |
-// |
-// The purpose of this class is to do more sophisticated number |
-// comparison. (Due to round-off error, etc, it's very unlikely that |
-// two floating-points will be equal exactly. Hence a naive |
-// comparison by the == operation often doesn't work.) |
-// |
-// Format of IEEE floating-point: |
-// |
-// The most-significant bit being the leftmost, an IEEE |
-// floating-point looks like |
-// |
-// sign_bit exponent_bits fraction_bits |
-// |
-// Here, sign_bit is a single bit that designates the sign of the |
-// number. |
-// |
-// For float, there are 8 exponent bits and 23 fraction bits. |
-// |
-// For double, there are 11 exponent bits and 52 fraction bits. |
-// |
-// More details can be found at |
-// http://en.wikipedia.org/wiki/IEEE_floating-point_standard. |
-// |
-// Template parameter: |
-// |
-// RawType: the raw floating-point type (either float or double) |
-template <typename RawType> |
-class FloatingPoint { |
- public: |
- // Defines the unsigned integer type that has the same size as the |
- // floating point number. |
- typedef typename TypeWithSize<sizeof(RawType)>::UInt Bits; |
- |
- // Constants. |
- |
- // # of bits in a number. |
- static const size_t kBitCount = 8*sizeof(RawType); |
- |
- // # of fraction bits in a number. |
- static const size_t kFractionBitCount = |
- std::numeric_limits<RawType>::digits - 1; |
- |
- // # of exponent bits in a number. |
- static const size_t kExponentBitCount = kBitCount - 1 - kFractionBitCount; |
- |
- // The mask for the sign bit. |
- static const Bits kSignBitMask = static_cast<Bits>(1) << (kBitCount - 1); |
- |
- // The mask for the fraction bits. |
- static const Bits kFractionBitMask = |
- ~static_cast<Bits>(0) >> (kExponentBitCount + 1); |
- |
- // The mask for the exponent bits. |
- static const Bits kExponentBitMask = ~(kSignBitMask | kFractionBitMask); |
- |
- // How many ULP's (Units in the Last Place) we want to tolerate when |
- // comparing two numbers. The larger the value, the more error we |
- // allow. A 0 value means that two numbers must be exactly the same |
- // to be considered equal. |
- // |
- // The maximum error of a single floating-point operation is 0.5 |
- // units in the last place. On Intel CPU's, all floating-point |
- // calculations are done with 80-bit precision, while double has 64 |
- // bits. Therefore, 4 should be enough for ordinary use. |
- // |
- // See the following article for more details on ULP: |
- // http://www.cygnus-software.com/papers/comparingfloats/comparingfloats.htm. |
- static const size_t kMaxUlps = 4; |
- |
- // Constructs a FloatingPoint from a raw floating-point number. |
- // |
- // On an Intel CPU, passing a non-normalized NAN (Not a Number) |
- // around may change its bits, although the new value is guaranteed |
- // to be also a NAN. Therefore, don't expect this constructor to |
- // preserve the bits in x when x is a NAN. |
- explicit FloatingPoint(const RawType& x) : value_(x) {} |
- |
- // Static methods |
- |
- // Reinterprets a bit pattern as a floating-point number. |
- // |
- // This function is needed to test the AlmostEquals() method. |
- static RawType ReinterpretBits(const Bits bits) { |
- FloatingPoint fp(0); |
- fp.bits_ = bits; |
- return fp.value_; |
- } |
- |
- // Returns the floating-point number that represent positive infinity. |
- static RawType Infinity() { |
- return ReinterpretBits(kExponentBitMask); |
- } |
- |
- // Non-static methods |
- |
- // Returns the bits that represents this number. |
- const Bits &bits() const { return bits_; } |
- |
- // Returns the exponent bits of this number. |
- Bits exponent_bits() const { return kExponentBitMask & bits_; } |
- |
- // Returns the fraction bits of this number. |
- Bits fraction_bits() const { return kFractionBitMask & bits_; } |
- |
- // Returns the sign bit of this number. |
- Bits sign_bit() const { return kSignBitMask & bits_; } |
- |
- // Returns true iff this is NAN (not a number). |
- bool is_nan() const { |
- // It's a NAN if the exponent bits are all ones and the fraction |
- // bits are not entirely zeros. |
- return (exponent_bits() == kExponentBitMask) && (fraction_bits() != 0); |
- } |
- |
- // Returns true iff this number is at most kMaxUlps ULP's away from |
- // rhs. In particular, this function: |
- // |
- // - returns false if either number is (or both are) NAN. |
- // - treats really large numbers as almost equal to infinity. |
- // - thinks +0.0 and -0.0 are 0 DLP's apart. |
- bool AlmostEquals(const FloatingPoint& rhs) const { |
- // The IEEE standard says that any comparison operation involving |
- // a NAN must return false. |
- if (is_nan() || rhs.is_nan()) return false; |
- |
- return DistanceBetweenSignAndMagnitudeNumbers(bits_, rhs.bits_) <= kMaxUlps; |
- } |
- |
- private: |
- // Converts an integer from the sign-and-magnitude representation to |
- // the biased representation. More precisely, let N be 2 to the |
- // power of (kBitCount - 1), an integer x is represented by the |
- // unsigned number x + N. |
- // |
- // For instance, |
- // |
- // -N + 1 (the most negative number representable using |
- // sign-and-magnitude) is represented by 1; |
- // 0 is represented by N; and |
- // N - 1 (the biggest number representable using |
- // sign-and-magnitude) is represented by 2N - 1. |
- // |
- // Read http://en.wikipedia.org/wiki/Signed_number_representations |
- // for more details on signed number representations. |
- static Bits SignAndMagnitudeToBiased(const Bits &sam) { |
- if (kSignBitMask & sam) { |
- // sam represents a negative number. |
- return ~sam + 1; |
- } else { |
- // sam represents a positive number. |
- return kSignBitMask | sam; |
- } |
- } |
- |
- // Given two numbers in the sign-and-magnitude representation, |
- // returns the distance between them as an unsigned number. |
- static Bits DistanceBetweenSignAndMagnitudeNumbers(const Bits &sam1, |
- const Bits &sam2) { |
- const Bits biased1 = SignAndMagnitudeToBiased(sam1); |
- const Bits biased2 = SignAndMagnitudeToBiased(sam2); |
- return (biased1 >= biased2) ? (biased1 - biased2) : (biased2 - biased1); |
- } |
- |
- union { |
- RawType value_; // The raw floating-point number. |
- Bits bits_; // The bits that represent the number. |
- }; |
-}; |
- |
-// Typedefs the instances of the FloatingPoint template class that we |
-// care to use. |
-typedef FloatingPoint<float> Float; |
-typedef FloatingPoint<double> Double; |
- |
-// In order to catch the mistake of putting tests that use different |
-// test fixture classes in the same test case, we need to assign |
-// unique IDs to fixture classes and compare them. The TypeId type is |
-// used to hold such IDs. The user should treat TypeId as an opaque |
-// type: the only operation allowed on TypeId values is to compare |
-// them for equality using the == operator. |
-typedef void* TypeId; |
- |
-// GetTypeId<T>() returns the ID of type T. Different values will be |
-// returned for different types. Calling the function twice with the |
-// same type argument is guaranteed to return the same ID. |
-template <typename T> |
-inline TypeId GetTypeId() { |
- static bool dummy = false; |
- // The compiler is required to create an instance of the static |
- // variable dummy for each T used to instantiate the template. |
- // Therefore, the address of dummy is guaranteed to be unique. |
- return &dummy; |
-} |
- |
-#ifdef GTEST_OS_WINDOWS |
- |
-// Predicate-formatters for implementing the HRESULT checking macros |
-// {ASSERT|EXPECT}_HRESULT_{SUCCEEDED|FAILED} |
-// We pass a long instead of HRESULT to avoid causing an |
-// include dependency for the HRESULT type. |
-AssertionResult IsHRESULTSuccess(const char* expr, long hr); // NOLINT |
-AssertionResult IsHRESULTFailure(const char* expr, long hr); // NOLINT |
- |
-#endif // GTEST_OS_WINDOWS |
- |
-} // namespace internal |
-} // namespace testing |
- |
-#define GTEST_MESSAGE(message, result_type) \ |
- ::testing::internal::AssertHelper(result_type, __FILE__, __LINE__, message) \ |
- = ::testing::Message() |
- |
-#define GTEST_FATAL_FAILURE(message) \ |
- return GTEST_MESSAGE(message, ::testing::TPRT_FATAL_FAILURE) |
- |
-#define GTEST_NONFATAL_FAILURE(message) \ |
- GTEST_MESSAGE(message, ::testing::TPRT_NONFATAL_FAILURE) |
- |
-#define GTEST_SUCCESS(message) \ |
- GTEST_MESSAGE(message, ::testing::TPRT_SUCCESS) |
- |
-#define GTEST_TEST_BOOLEAN(boolexpr, booltext, actual, expected, fail) \ |
- GTEST_AMBIGUOUS_ELSE_BLOCKER \ |
- if (boolexpr) \ |
- ; \ |
- else \ |
- fail("Value of: " booltext "\n Actual: " #actual "\nExpected: " #expected) |
- |
-// Helper macro for defining tests. |
-#define GTEST_TEST(test_case_name, test_name, parent_class)\ |
-class test_case_name##_##test_name##_Test : public parent_class {\ |
- public:\ |
- test_case_name##_##test_name##_Test() {}\ |
- static ::testing::Test* NewTest() {\ |
- return new test_case_name##_##test_name##_Test;\ |
- }\ |
- private:\ |
- virtual void TestBody();\ |
- static ::testing::TestInfo* const test_info_;\ |
- GTEST_DISALLOW_COPY_AND_ASSIGN(test_case_name##_##test_name##_Test);\ |
-};\ |
-\ |
-::testing::TestInfo* const test_case_name##_##test_name##_Test::test_info_ =\ |
- ::testing::TestInfo::MakeAndRegisterInstance(\ |
- #test_case_name, \ |
- #test_name, \ |
- ::testing::internal::GetTypeId< parent_class >(), \ |
- parent_class::SetUpTestCase, \ |
- parent_class::TearDownTestCase, \ |
- test_case_name##_##test_name##_Test::NewTest);\ |
-void test_case_name##_##test_name##_Test::TestBody() |
- |
- |
-#endif // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_INTERNAL_H_ |