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1 // Copyright (c) 2012 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 #include "ui/gfx/point3_f.h" | |
6 | |
7 #include "base/basictypes.h" | |
8 #include "testing/gtest/include/gtest/gtest.h" | |
9 | |
10 namespace gfx { | |
11 | |
12 TEST(Point3Test, VectorArithmetic) { | |
13 gfx::Point3F a(1.6f, 5.1f, 3.2f); | |
14 gfx::Vector3dF v1(3.1f, -3.2f, 9.3f); | |
15 gfx::Vector3dF v2(-8.1f, 1.2f, 3.3f); | |
16 | |
17 static const struct { | |
18 gfx::Point3F expected; | |
19 gfx::Point3F actual; | |
20 } tests[] = { | |
21 { gfx::Point3F(4.7f, 1.9f, 12.5f), a + v1 }, | |
22 { gfx::Point3F(-1.5f, 8.3f, -6.1f), a - v1 }, | |
23 { a, a - v1 + v1 }, | |
24 { a, a + v1 - v1 }, | |
25 { a, a + gfx::Vector3dF() }, | |
26 { gfx::Point3F(12.8f, 0.7f, 9.2f), a + v1 - v2 }, | |
27 { gfx::Point3F(-9.6f, 9.5f, -2.8f), a - v1 + v2 } | |
28 }; | |
29 | |
30 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(tests); ++i) | |
31 EXPECT_EQ(tests[i].expected.ToString(), | |
32 tests[i].actual.ToString()); | |
33 | |
34 a += v1; | |
35 EXPECT_EQ(Point3F(4.7f, 1.9f, 12.5f).ToString(), a.ToString()); | |
36 | |
37 a -= v2; | |
38 EXPECT_EQ(Point3F(12.8f, 0.7f, 9.2f).ToString(), a.ToString()); | |
39 } | |
40 | |
41 TEST(Point3Test, VectorFromPoints) { | |
42 gfx::Point3F a(1.6f, 5.2f, 3.2f); | |
43 gfx::Vector3dF v1(3.1f, -3.2f, 9.3f); | |
44 | |
45 gfx::Point3F b(a + v1); | |
46 EXPECT_EQ((b - a).ToString(), v1.ToString()); | |
47 } | |
48 | |
49 TEST(Point3Test, Scale) { | |
50 EXPECT_EQ(Point3F().ToString(), ScalePoint(Point3F(), 2.f).ToString()); | |
51 EXPECT_EQ(Point3F().ToString(), | |
52 ScalePoint(Point3F(), 2.f, 2.f, 2.f).ToString()); | |
53 | |
54 EXPECT_EQ(Point3F(2.f, -2.f, 4.f).ToString(), | |
55 ScalePoint(Point3F(1.f, -1.f, 2.f), 2.f).ToString()); | |
56 EXPECT_EQ(Point3F(2.f, -3.f, 8.f).ToString(), | |
57 ScalePoint(Point3F(1.f, -1.f, 2.f), 2.f, 3.f, 4.f).ToString()); | |
58 | |
59 Point3F zero; | |
60 zero.Scale(2.f); | |
61 zero.Scale(6.f, 3.f, 1.5f); | |
62 EXPECT_EQ(Point3F().ToString(), zero.ToString()); | |
63 | |
64 Point3F point(1.f, -1.f, 2.f); | |
65 point.Scale(2.f); | |
66 point.Scale(6.f, 3.f, 1.5f); | |
67 EXPECT_EQ(Point3F(12.f, -6.f, 6.f).ToString(), point.ToString()); | |
68 } | |
69 | |
70 } // namespace gfx | |
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