chromium/third_party/googletest/src/googletest/include/gtest/gtest-spi.h

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// Utilities for testing Google Test itself and code that uses Google Test
// (e.g. frameworks built on top of Google Test).

#ifndef GOOGLETEST_INCLUDE_GTEST_GTEST_SPI_H_
#define GOOGLETEST_INCLUDE_GTEST_GTEST_SPI_H_

#include <string>

#include "gtest/gtest.h"

GTEST_DISABLE_MSC_WARNINGS_PUSH_(…)

namespace testing {

// This helper class can be used to mock out Google Test failure reporting
// so that we can test Google Test or code that builds on Google Test.
//
// An object of this class appends a TestPartResult object to the
// TestPartResultArray object given in the constructor whenever a Google Test
// failure is reported. It can either intercept only failures that are
// generated in the same thread that created this object or it can intercept
// all generated failures. The scope of this mock object can be controlled with
// the second argument to the two arguments constructor.
class GTEST_API_ ScopedFakeTestPartResultReporter
    : public TestPartResultReporterInterface { … };

namespace internal {

// A helper class for implementing EXPECT_FATAL_FAILURE() and
// EXPECT_NONFATAL_FAILURE().  Its destructor verifies that the given
// TestPartResultArray contains exactly one failure that has the given
// type and contains the given substring.  If that's not the case, a
// non-fatal failure will be generated.
class GTEST_API_ SingleFailureChecker { … };

}  // namespace internal

}  // namespace testing

GTEST_DISABLE_MSC_WARNINGS_POP_(…)  //  4251

// A set of macros for testing Google Test assertions or code that's expected
// to generate Google Test fatal failures (e.g. a failure from an ASSERT_EQ, but
// not a non-fatal failure, as from EXPECT_EQ).  It verifies that the given
// statement will cause exactly one fatal Google Test failure with 'substr'
// being part of the failure message.
//
// There are two different versions of this macro. EXPECT_FATAL_FAILURE only
// affects and considers failures generated in the current thread and
// EXPECT_FATAL_FAILURE_ON_ALL_THREADS does the same but for all threads.
//
// The verification of the assertion is done correctly even when the statement
// throws an exception or aborts the current function.
//
// Known restrictions:
//   - 'statement' cannot reference local non-static variables or
//     non-static members of the current object.
//   - 'statement' cannot return a value.
//   - You cannot stream a failure message to this macro.
//
// Note that even though the implementations of the following two
// macros are much alike, we cannot refactor them to use a common
// helper macro, due to some peculiarity in how the preprocessor
// works.  The AcceptsMacroThatExpandsToUnprotectedComma test in
// gtest_unittest.cc will fail to compile if we do that.
#define EXPECT_FATAL_FAILURE(statement, substr) …

#define EXPECT_FATAL_FAILURE_ON_ALL_THREADS(statement, substr) …

// A macro for testing Google Test assertions or code that's expected to
// generate Google Test non-fatal failures (e.g. a failure from an EXPECT_EQ,
// but not from an ASSERT_EQ). It asserts that the given statement will cause
// exactly one non-fatal Google Test failure with 'substr' being part of the
// failure message.
//
// There are two different versions of this macro. EXPECT_NONFATAL_FAILURE only
// affects and considers failures generated in the current thread and
// EXPECT_NONFATAL_FAILURE_ON_ALL_THREADS does the same but for all threads.
//
// 'statement' is allowed to reference local variables and members of
// the current object.
//
// The verification of the assertion is done correctly even when the statement
// throws an exception or aborts the current function.
//
// Known restrictions:
//   - You cannot stream a failure message to this macro.
//
// Note that even though the implementations of the following two
// macros are much alike, we cannot refactor them to use a common
// helper macro, due to some peculiarity in how the preprocessor
// works.  If we do that, the code won't compile when the user gives
// EXPECT_NONFATAL_FAILURE() a statement that contains a macro that
// expands to code containing an unprotected comma.  The
// AcceptsMacroThatExpandsToUnprotectedComma test in gtest_unittest.cc
// catches that.
//
// For the same reason, we have to write
//   if (::testing::internal::AlwaysTrue()) { statement; }
// instead of
//   GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement)
// to avoid an MSVC warning on unreachable code.
#define EXPECT_NONFATAL_FAILURE(statement, substr) …

#define EXPECT_NONFATAL_FAILURE_ON_ALL_THREADS(statement, substr) …

#endif  // GOOGLETEST_INCLUDE_GTEST_GTEST_SPI_H_