view release on metacpan or  search on metacpan

libcares/test/gmock-1.8.0/gtest/gtest.h  view on Meta::CPAN

// Same as above, but the input is represented as strings.
GTEST_API_ std::vector<EditType> CalculateOptimalEdits(
    const std::vector<std::string>& left,
    const std::vector<std::string>& right);

// Create a diff of the input strings in Unified diff format.
GTEST_API_ std::string CreateUnifiedDiff(const std::vector<std::string>& left,
                                         const std::vector<std::string>& right,
                                         size_t context = 2);

}  // namespace edit_distance

// Calculate the diff between 'left' and 'right' and return it in unified diff
// format.
// If not null, stores in 'total_line_count' the total number of lines found
// in left + right.
GTEST_API_ std::string DiffStrings(const std::string& left,
                                   const std::string& right,
                                   size_t* total_line_count);

// 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.
GTEST_API_ AssertionResult EqFailure(const char* expected_expression,
                                     const char* actual_expression,
                                     const std::string& expected_value,
                                     const std::string& actual_value,
                                     bool ignoring_case);

// Constructs a failure message for Boolean assertions such as EXPECT_TRUE.
GTEST_API_ std::string GetBoolAssertionFailureMessage(
    const AssertionResult& assertion_result,
    const char* expression_text,
    const char* actual_predicate_value,
    const char* expected_predicate_value);

// 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://randomascii.wordpress.com/2012/02/25/comparing-floating-point-numbers-2012-edition/
  static const size_t kMaxUlps = 4;

  // Constructs a FloatingPoint from a raw floating-point number.

libcares/test/gmock-1.8.0/gtest/gtest.h  view on Meta::CPAN

namespace internal {

// Separate the error generating code from the code path to reduce the stack
// frame size of CmpHelperEQ. This helps reduce the overhead of some sanitizers
// when calling EXPECT_* in a tight loop.
template <typename T1, typename T2>
AssertionResult CmpHelperEQFailure(const char* lhs_expression,
                                   const char* rhs_expression,
                                   const T1& lhs, const T2& rhs) {
  return EqFailure(lhs_expression,
                   rhs_expression,
                   FormatForComparisonFailureMessage(lhs, rhs),
                   FormatForComparisonFailureMessage(rhs, lhs),
                   false);
}

// The helper function for {ASSERT|EXPECT}_EQ.
template <typename T1, typename T2>
AssertionResult CmpHelperEQ(const char* lhs_expression,
                            const char* rhs_expression,
                            const T1& lhs,
                            const T2& rhs) {
GTEST_DISABLE_MSC_WARNINGS_PUSH_(4389 /* signed/unsigned mismatch */)
  if (lhs == rhs) {
    return AssertionSuccess();
  }
GTEST_DISABLE_MSC_WARNINGS_POP_()

  return CmpHelperEQFailure(lhs_expression, rhs_expression, lhs, rhs);
}

// With this overloaded version, we allow anonymous enums to be used
// in {ASSERT|EXPECT}_EQ when compiled with gcc 4, as anonymous enums
// can be implicitly cast to BiggestInt.
GTEST_API_ AssertionResult CmpHelperEQ(const char* lhs_expression,
                                       const char* rhs_expression,
                                       BiggestInt lhs,
                                       BiggestInt rhs);

// The helper class for {ASSERT|EXPECT}_EQ.  The template argument
// lhs_is_null_literal is true iff the first argument to ASSERT_EQ()
// is a null pointer literal.  The following default implementation is
// for lhs_is_null_literal being false.
template <bool lhs_is_null_literal>
class EqHelper {
 public:
  // This templatized version is for the general case.
  template <typename T1, typename T2>
  static AssertionResult Compare(const char* lhs_expression,
                                 const char* rhs_expression,
                                 const T1& lhs,
                                 const T2& rhs) {
    return CmpHelperEQ(lhs_expression, rhs_expression, lhs, rhs);
  }

  // With this overloaded version, we allow anonymous enums to be used
  // in {ASSERT|EXPECT}_EQ when compiled with gcc 4, as anonymous
  // enums can be implicitly cast to BiggestInt.
  //
  // Even though its body looks the same as the above version, we
  // cannot merge the two, as it will make anonymous enums unhappy.
  static AssertionResult Compare(const char* lhs_expression,
                                 const char* rhs_expression,
                                 BiggestInt lhs,
                                 BiggestInt rhs) {
    return CmpHelperEQ(lhs_expression, rhs_expression, lhs, rhs);
  }
};

// This specialization is used when the first argument to ASSERT_EQ()
// is a null pointer literal, like NULL, false, or 0.
template <>
class EqHelper<true> {
 public:
  // We define two overloaded versions of Compare().  The first
  // version will be picked when the second argument to ASSERT_EQ() is
  // NOT a pointer, e.g. ASSERT_EQ(0, AnIntFunction()) or
  // EXPECT_EQ(false, a_bool).
  template <typename T1, typename T2>
  static AssertionResult Compare(
      const char* lhs_expression,
      const char* rhs_expression,
      const T1& lhs,
      const T2& rhs,
      // The following line prevents this overload from being considered if T2
      // is not a pointer type.  We need this because ASSERT_EQ(NULL, my_ptr)
      // expands to Compare("", "", NULL, my_ptr), which requires a conversion
      // to match the Secret* in the other overload, which would otherwise make
      // this template match better.
      typename EnableIf<!is_pointer<T2>::value>::type* = 0) {
    return CmpHelperEQ(lhs_expression, rhs_expression, lhs, rhs);
  }

  // This version will be picked when the second argument to ASSERT_EQ() is a
  // pointer, e.g. ASSERT_EQ(NULL, a_pointer).
  template <typename T>
  static AssertionResult Compare(
      const char* lhs_expression,
      const char* rhs_expression,
      // We used to have a second template parameter instead of Secret*.  That
      // template parameter would deduce to 'long', making this a better match
      // than the first overload even without the first overload's EnableIf.
      // Unfortunately, gcc with -Wconversion-null warns when "passing NULL to
      // non-pointer argument" (even a deduced integral argument), so the old
      // implementation caused warnings in user code.
      Secret* /* lhs (NULL) */,
      T* rhs) {
    // We already know that 'lhs' is a null pointer.
    return CmpHelperEQ(lhs_expression, rhs_expression,
                       static_cast<T*>(NULL), rhs);
  }
};

// Separate the error generating code from the code path to reduce the stack
// frame size of CmpHelperOP. This helps reduce the overhead of some sanitizers
// when calling EXPECT_OP in a tight loop.
template <typename T1, typename T2>
AssertionResult CmpHelperOpFailure(const char* expr1, const char* expr2,
                                   const T1& val1, const T2& val2,
                                   const char* op) {