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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_RECT_EQ(expected, actual) \
33 do { \
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) \
41 do { \
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) \
47 do { \
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) \
53 do { \
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) \
60 do { \
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) \
66 do { \
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) \
72 do { \
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
83 void 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.
94 gfx::Transform Inverse(const gfx::Transform& transform);
95 
96 }  // namespace cc
97 
98 #endif  // CC_TEST_GEOMETRY_TEST_UTILS_H_
99