text: // Copyright 2011 The Chromium Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  
  #ifndef CC_TEST_GEOMETRY_TEST_UTILS_H_
  #define CC_TEST_GEOMETRY_TEST_UTILS_H_
  
  namespace gfx {
  class Transform;
  }
  
  namespace cc {
  
  // These are macros instead of functions so that we get useful line numbers
  // where a test failed.
  #define EXPECT_FLOAT_RECT_EQ(expected, actual) \
  do { \
    EXPECT_FLOAT_EQ((expected).x(), (actual).x()); \
    EXPECT_FLOAT_EQ((expected).y(), (actual).y()); \
    EXPECT_FLOAT_EQ((expected).width(), (actual).width()); \
    EXPECT_FLOAT_EQ((expected).height(), (actual).height()); \
  } while (false)
  
  #define EXPECT_RECT_NEAR(expected, actual, abs_error) \
  do { \
    EXPECT_NEAR((expected).x(), (actual).x(), (abs_error)); \
    EXPECT_NEAR((expected).y(), (actual).y(), (abs_error)); \
    EXPECT_NEAR((expected).width(), (actual).width(), (abs_error)); \
    EXPECT_NEAR((expected).height(), (actual).height(), (abs_error)); \
  } while (false)
  
  #define EXPECT_RECT_EQ(expected, actual) \
  do { \
    EXPECT_EQ((expected).x(), (actual).x()); \
    EXPECT_EQ((expected).y(), (actual).y()); \
    EXPECT_EQ((expected).width(), (actual).width()); \
    EXPECT_EQ((expected).height(), (actual).height()); \
  } while (false)
  
  #define EXPECT_SIZE_EQ(expected, actual) \
  do { \
    EXPECT_EQ((expected).width(), (actual).width()); \
    EXPECT_EQ((expected).height(), (actual).height()); \
  } while (false)
  
  #define EXPECT_POINT_EQ(expected, actual) \
  do { \
    EXPECT_EQ((expected).x(), (actual).x()); \
    EXPECT_EQ((expected).y(), (actual).y()); \
  } while (false)
  
  #define EXPECT_POINT3F_EQ(expected, actual) \
  do { \
    EXPECT_FLOAT_EQ((expected).x(), (actual).x()); \
    EXPECT_FLOAT_EQ((expected).y(), (actual).y()); \
    EXPECT_FLOAT_EQ((expected).z(), (actual).z()); \
  } while (false)
  
  #define EXPECT_VECTOR_EQ(expected, actual) \
  do { \
    EXPECT_EQ((expected).x(), (actual).x()); \
    EXPECT_EQ((expected).y(), (actual).y()); \
  } while (false)
  
  #define EXPECT_VECTOR2DF_EQ(expected, actual) \
  do { \
    EXPECT_FLOAT_EQ((expected).x(), (actual).x()); \
    EXPECT_FLOAT_EQ((expected).y(), (actual).y()); \
  } while (false)
  
  #define EXPECT_VECTOR2DF_NEAR(expected, actual, abs_error)  \
    do {                                                      \
      EXPECT_NEAR((expected).x(), (actual).x(), (abs_error)); \
      EXPECT_NEAR((expected).y(), (actual).y(), (abs_error)); \
    } while (false)
  
  #define EXPECT_FLOAT_ARRAY_EQ(expected, actual, count) \
  do { \
    for (int i = 0; i < count; i++) { \
      EXPECT_FLOAT_EQ((expected)[i], (actual)[i]); \
    } \
  } while (false)
  
  // This is a function rather than a macro because when this is included as a
  // macro in bulk, it causes a significant slow-down in compilation time. This
  // problem exists with both gcc and clang, and bugs have been filed at
  // http://llvm.org/bugs/show_bug.cgi?id=13651
  // and http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54337
  void ExpectTransformationMatrixEq(const gfx::Transform& expected,
                                    const gfx::Transform& actual);
  
  #define EXPECT_TRANSFORMATION_MATRIX_EQ(expected, actual) \
    do {                                                    \
      SCOPED_TRACE("");                                     \
      ExpectTransformationMatrixEq(expected, actual);       \
    } while (false)
  
  // Should be used in test code only, for convenience. Production code should use
  // the gfx::Transform::GetInverse() API.
  gfx::Transform Inverse(const gfx::Transform& transform);
  
  }  // namespace cc
  
  #endif  // CC_TEST_GEOMETRY_TEST_UTILS_H_
  