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