cc/test/geometry_test_utils.h

   1 // Copyright 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CC_TEST_GEOMETRY_TEST_UTILS_H_
   6 #define CC_TEST_GEOMETRY_TEST_UTILS_H_
   7
   8 namespace gfx {
   9 class Transform;
  10 }
  11
  12 namespace cc {
  13
  14 // These are macros instead of functions so that we get useful line numbers
  15 // where a test failed.
  16 #define EXPECT_FLOAT_RECT_EQ(expected, actual) \
  17 do { \
  18   EXPECT_FLOAT_EQ((expected).x(), (actual).x()); \
  19   EXPECT_FLOAT_EQ((expected).y(), (actual).y()); \
  20   EXPECT_FLOAT_EQ((expected).width(), (actual).width()); \
  21   EXPECT_FLOAT_EQ((expected).height(), (actual).height()); \
  22 } while (false)
  23
  24 #define EXPECT_RECT_NEAR(expected, actual, abs_error) \
  25 do { \
  26   EXPECT_NEAR((expected).x(), (actual).x(), (abs_error)); \
  27   EXPECT_NEAR((expected).y(), (actual).y(), (abs_error)); \
  28   EXPECT_NEAR((expected).width(), (actual).width(), (abs_error)); \
  29   EXPECT_NEAR((expected).height(), (actual).height(), (abs_error)); \
  30 } while (false)
  31
  32 #define EXPECT_POINT3F_EQ(expected, actual)      \
  33 do {                                             \
  34   EXPECT_FLOAT_EQ((expected).x(), (actual).x()); \
  35   EXPECT_FLOAT_EQ((expected).y(), (actual).y()); \
  36   EXPECT_FLOAT_EQ((expected).z(), (actual).z()); \
  37 } while (false)
  38
  39 #define EXPECT_VECTOR_EQ(expected, actual) \
  40 do { \
  41   EXPECT_EQ((expected).x(), (actual).x()); \
  42   EXPECT_EQ((expected).y(), (actual).y()); \
  43 } while (false)
  44
  45 #define EXPECT_VECTOR2DF_EQ(expected, actual) \
  46 do { \
  47   EXPECT_FLOAT_EQ((expected).x(), (actual).x()); \
  48   EXPECT_FLOAT_EQ((expected).y(), (actual).y()); \
  49 } while (false)
  50
  51 #define EXPECT_VECTOR2DF_NEAR(expected, actual, abs_error)  \
  52   do {                                                      \
  53     EXPECT_NEAR((expected).x(), (actual).x(), (abs_error)); \
  54     EXPECT_NEAR((expected).y(), (actual).y(), (abs_error)); \
  55   } while (false)
  56
  57 #define EXPECT_FLOAT_ARRAY_EQ(expected, actual, count) \
  58 do { \
  59   for (int i = 0; i < count; i++) { \
  60     EXPECT_FLOAT_EQ((expected)[i], (actual)[i]); \
  61   } \
  62 } while (false)
  63
  64 // This is a function rather than a macro because when this is included as a
  65 // macro in bulk, it causes a significant slow-down in compilation time. This
  66 // problem exists with both gcc and clang, and bugs have been filed at
  67 // http://llvm.org/bugs/show_bug.cgi?id=13651
  68 // and http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54337
  69 void ExpectTransformationMatrixEq(const gfx::Transform& expected,
  70                                   const gfx::Transform& actual);
  71
  72 #define EXPECT_TRANSFORMATION_MATRIX_EQ(expected, actual) \
  73   do {                                                    \
  74     SCOPED_TRACE("");                                     \
  75     ExpectTransformationMatrixEq(expected, actual);       \
  76   } while (false)
  77
  78 // Should be used in test code only, for convenience. Production code should use
  79 // the gfx::Transform::GetInverse() API.
  80 gfx::Transform Inverse(const gfx::Transform& transform);
  81
  82 }  // namespace cc
  83
  84 #endif  // CC_TEST_GEOMETRY_TEST_UTILS_H_