geometry_test_utils.h revision 2a99a7e74a7f215066514fe81d2bfa6639d9eddd 
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_EQ(expected, actual) \
25do { \
26  EXPECT_EQ((expected).x(), (actual).x()); \
27  EXPECT_EQ((expected).y(), (actual).y()); \
28  EXPECT_EQ((expected).width(), (actual).width()); \
29  EXPECT_EQ((expected).height(), (actual).height()); \
30} while (false)
31
32#define EXPECT_SIZE_EQ(expected, actual) \
33do { \
34  EXPECT_EQ((expected).width(), (actual).width()); \
35  EXPECT_EQ((expected).height(), (actual).height()); \
36} while (false)
37
38#define EXPECT_POINT_EQ(expected, actual) \
39do { \
40  EXPECT_EQ((expected).x(), (actual).x()); \
41  EXPECT_EQ((expected).y(), (actual).y()); \
42} while (false)
43
44#define EXPECT_POINT3F_EQ(expected, actual) \
45do { \
46  EXPECT_FLOAT_EQ((expected).x(), (actual).x()); \
47  EXPECT_FLOAT_EQ((expected).y(), (actual).y()); \
48  EXPECT_FLOAT_EQ((expected).z(), (actual).z()); \
49} while (false)
50
51#define EXPECT_VECTOR_EQ(expected, actual) \
52do { \
53  EXPECT_EQ((expected).x(), (actual).x()); \
54  EXPECT_EQ((expected).y(), (actual).y()); \
55} while (false)
56
57#define EXPECT_FLOAT_ARRAY_EQ(expected, actual, count) \
58do { \
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
69void ExpectTransformationMatrixEq(const gfx::Transform& expected,
70                                  const gfx::Transform& actual);
71
72#define EXPECT_TRANSFORMATION_MATRIX_EQ(expected, actual) \
73do { \
74  SCOPED_TRACE(""); \
75  cc::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.
80gfx::Transform Inverse(const gfx::Transform& transform);
81
82}  // namespace cc
83
84#endif  // CC_TEST_GEOMETRY_TEST_UTILS_H_
85