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
8namespace gfx {
9class Transform;
10}
11
12namespace 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) \
17do { \
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) \
25do { \
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_RECT_EQ(expected, actual) \
33do { \
34  EXPECT_EQ((expected).x(), (actual).x()); \
35  EXPECT_EQ((expected).y(), (actual).y()); \
36  EXPECT_EQ((expected).width(), (actual).width()); \
37  EXPECT_EQ((expected).height(), (actual).height()); \
38} while (false)
39
40#define EXPECT_SIZE_EQ(expected, actual) \
41do { \
42  EXPECT_EQ((expected).width(), (actual).width()); \
43  EXPECT_EQ((expected).height(), (actual).height()); \
44} while (false)
45
46#define EXPECT_POINT_EQ(expected, actual) \
47do { \
48  EXPECT_EQ((expected).x(), (actual).x()); \
49  EXPECT_EQ((expected).y(), (actual).y()); \
50} while (false)
51
52#define EXPECT_POINT3F_EQ(expected, actual) \
53do { \
54  EXPECT_FLOAT_EQ((expected).x(), (actual).x()); \
55  EXPECT_FLOAT_EQ((expected).y(), (actual).y()); \
56  EXPECT_FLOAT_EQ((expected).z(), (actual).z()); \
57} while (false)
58
59#define EXPECT_VECTOR_EQ(expected, actual) \
60do { \
61  EXPECT_EQ((expected).x(), (actual).x()); \
62  EXPECT_EQ((expected).y(), (actual).y()); \
63} while (false)
64
65#define EXPECT_VECTOR2DF_EQ(expected, actual) \
66do { \
67  EXPECT_FLOAT_EQ((expected).x(), (actual).x()); \
68  EXPECT_FLOAT_EQ((expected).y(), (actual).y()); \
69} while (false)
70
71#define EXPECT_FLOAT_ARRAY_EQ(expected, actual, count) \
72do { \
73  for (int i = 0; i < count; i++) { \
74    EXPECT_FLOAT_EQ((expected)[i], (actual)[i]); \
75  } \
76} while (false)
77
78// This is a function rather than a macro because when this is included as a
79// macro in bulk, it causes a significant slow-down in compilation time. This
80// problem exists with both gcc and clang, and bugs have been filed at
81// http://llvm.org/bugs/show_bug.cgi?id=13651
82// and http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54337
83void ExpectTransformationMatrixEq(const gfx::Transform& expected,
84                                  const gfx::Transform& actual);
85
86#define EXPECT_TRANSFORMATION_MATRIX_EQ(expected, actual) \
87  do {                                                    \
88    SCOPED_TRACE("");                                     \
89    ExpectTransformationMatrixEq(expected, actual);       \
90  } while (false)
91
92// Should be used in test code only, for convenience. Production code should use
93// the gfx::Transform::GetInverse() API.
94gfx::Transform Inverse(const gfx::Transform& transform);
95
96}  // namespace cc
97
98#endif  // CC_TEST_GEOMETRY_TEST_UTILS_H_
99