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  GTEST_DISALLOW_COPY_AND_ASSIGN_(AssertHelper);
};

}  // namespace internal

#if GTEST_HAS_PARAM_TEST
// The pure interface class that all value-parameterized tests inherit from.
// A value-parameterized class must inherit from both ::testing::Test and
// ::testing::WithParamInterface. In most cases that just means inheriting
// from ::testing::TestWithParam, but more complicated test hierarchies
// may need to inherit from Test and WithParamInterface at different levels.
//
// This interface has support for accessing the test parameter value via
// the GetParam() method.
//
// Use it with one of the parameter generator defining functions, like Range(),
// Values(), ValuesIn(), Bool(), and Combine().
//
// class FooTest : public ::testing::TestWithParam<int> {
//  protected:
//   FooTest() {
//     // Can use GetParam() here.
//   }
//   virtual ~FooTest() {
//     // Can use GetParam() here.
//   }
//   virtual void SetUp() {
//     // Can use GetParam() here.
//   }
//   virtual void TearDown {
//     // Can use GetParam() here.
//   }
// };
// TEST_P(FooTest, DoesBar) {
//   // Can use GetParam() method here.
//   Foo foo;
//   ASSERT_TRUE(foo.DoesBar(GetParam()));
// }
// INSTANTIATE_TEST_CASE_P(OneToTenRange, FooTest, ::testing::Range(1, 10));

template <typename T>
class WithParamInterface {
 public:
  typedef T ParamType;
  virtual ~WithParamInterface() {}

  // The current parameter value. Is also available in the test fixture's
  // constructor. This member function is non-static, even though it only
  // references static data, to reduce the opportunity for incorrect uses
  // like writing 'WithParamInterface<bool>::GetParam()' for a test that
  // uses a fixture whose parameter type is int.
  const ParamType& GetParam() const {
    GTEST_CHECK_(parameter_ != NULL)
        << "GetParam() can only be called inside a value-parameterized test "
        << "-- did you intend to write TEST_P instead of TEST_F?";
    return *parameter_;
  }

 private:
  // Sets parameter value. The caller is responsible for making sure the value
  // remains alive and unchanged throughout the current test.
  static void SetParam(const ParamType* parameter) {
    parameter_ = parameter;
  }

  // Static value used for accessing parameter during a test lifetime.
  static const ParamType* parameter_;

  // TestClass must be a subclass of WithParamInterface<T> and Test.
  template <class TestClass> friend class internal::ParameterizedTestFactory;
};

template <typename T>
const T* WithParamInterface<T>::parameter_ = NULL;

// Most value-parameterized classes can ignore the existence of
// WithParamInterface, and can just inherit from ::testing::TestWithParam.

template <typename T>
class TestWithParam : public Test, public WithParamInterface<T> {
};

#endif  // GTEST_HAS_PARAM_TEST

// Macros for indicating success/failure in test code.

// ADD_FAILURE unconditionally adds a failure to the current test.
// SUCCEED generates a success - it doesn't automatically make the
// current test successful, as a test is only successful when it has
// no failure.
//
// EXPECT_* verifies that a certain condition is satisfied.  If not,
// it behaves like ADD_FAILURE.  In particular:
//
//   EXPECT_TRUE  verifies that a Boolean condition is true.
//   EXPECT_FALSE verifies that a Boolean condition is false.
//
// FAIL and ASSERT_* are similar to ADD_FAILURE and EXPECT_*, except
// that they will also abort the current function on failure.  People
// usually want the fail-fast behavior of FAIL and ASSERT_*, but those
// writing data-driven tests often find themselves using ADD_FAILURE
// and EXPECT_* more.

// Generates a nonfatal failure with a generic message.
#define ADD_FAILURE() GTEST_NONFATAL_FAILURE_("Failed")

// Generates a nonfatal failure at the given source file location with
// a generic message.
#define ADD_FAILURE_AT(file, line) \
  GTEST_MESSAGE_AT_(file, line, "Failed", \
                    ::testing::TestPartResult::kNonFatalFailure)

// Generates a fatal failure with a generic message.
#define GTEST_FAIL() GTEST_FATAL_FAILURE_("Failed")

// Define this macro to 1 to omit the definition of FAIL(), which is a
// generic name and clashes with some other libraries.
#if !GTEST_DONT_DEFINE_FAIL
# define FAIL() GTEST_FAIL()
#endif