| OLD | NEW |
|---|
| (Empty) |
| 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 <cmath> | |
| 6 #include <limits> | |
| 7 | |
| 8 #include "base/basictypes.h" | |
| 9 #include "testing/gtest/include/gtest/gtest.h" | |
| 10 #include "ui/gfx/vector2d.h" | |
| 11 #include "ui/gfx/vector2d_f.h" | |
| 12 | |
| 13 namespace gfx { | |
| 14 | |
| 15 TEST(Vector2dTest, ConversionToFloat) { | |
| 16 Vector2d i(3, 4); | |
| 17 Vector2dF f = i; | |
| 18 EXPECT_EQ(i, f); | |
| 19 } | |
| 20 | |
| 21 TEST(Vector2dTest, IsZero) { | |
| 22 Vector2d int_zero(0, 0); | |
| 23 Vector2d int_nonzero(2, -2); | |
| 24 Vector2dF float_zero(0, 0); | |
| 25 Vector2dF float_nonzero(0.1f, -0.1f); | |
| 26 | |
| 27 EXPECT_TRUE(int_zero.IsZero()); | |
| 28 EXPECT_FALSE(int_nonzero.IsZero()); | |
| 29 EXPECT_TRUE(float_zero.IsZero()); | |
| 30 EXPECT_FALSE(float_nonzero.IsZero()); | |
| 31 } | |
| 32 | |
| 33 TEST(Vector2dTest, Add) { | |
| 34 Vector2d i1(3, 5); | |
| 35 Vector2d i2(4, -1); | |
| 36 | |
| 37 const struct { | |
| 38 Vector2d expected; | |
| 39 Vector2d actual; | |
| 40 } int_tests[] = { | |
| 41 { Vector2d(3, 5), i1 + Vector2d() }, | |
| 42 { Vector2d(3 + 4, 5 - 1), i1 + i2 }, | |
| 43 { Vector2d(3 - 4, 5 + 1), i1 - i2 } | |
| 44 }; | |
| 45 | |
| 46 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(int_tests); ++i) | |
| 47 EXPECT_EQ(int_tests[i].expected.ToString(), | |
| 48 int_tests[i].actual.ToString()); | |
| 49 | |
| 50 Vector2dF f1(3.1f, 5.1f); | |
| 51 Vector2dF f2(4.3f, -1.3f); | |
| 52 | |
| 53 const struct { | |
| 54 Vector2dF expected; | |
| 55 Vector2dF actual; | |
| 56 } float_tests[] = { | |
| 57 { Vector2dF(3.1F, 5.1F), f1 + Vector2d() }, | |
| 58 { Vector2dF(3.1F, 5.1F), f1 + Vector2dF() }, | |
| 59 { Vector2dF(3.1f + 4.3f, 5.1f - 1.3f), f1 + f2 }, | |
| 60 { Vector2dF(3.1f - 4.3f, 5.1f + 1.3f), f1 - f2 } | |
| 61 }; | |
| 62 | |
| 63 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(float_tests); ++i) | |
| 64 EXPECT_EQ(float_tests[i].expected.ToString(), | |
| 65 float_tests[i].actual.ToString()); | |
| 66 } | |
| 67 | |
| 68 TEST(Vector2dTest, Negative) { | |
| 69 const struct { | |
| 70 Vector2d expected; | |
| 71 Vector2d actual; | |
| 72 } int_tests[] = { | |
| 73 { Vector2d(0, 0), -Vector2d(0, 0) }, | |
| 74 { Vector2d(-3, -3), -Vector2d(3, 3) }, | |
| 75 { Vector2d(3, 3), -Vector2d(-3, -3) }, | |
| 76 { Vector2d(-3, 3), -Vector2d(3, -3) }, | |
| 77 { Vector2d(3, -3), -Vector2d(-3, 3) } | |
| 78 }; | |
| 79 | |
| 80 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(int_tests); ++i) | |
| 81 EXPECT_EQ(int_tests[i].expected.ToString(), | |
| 82 int_tests[i].actual.ToString()); | |
| 83 | |
| 84 const struct { | |
| 85 Vector2dF expected; | |
| 86 Vector2dF actual; | |
| 87 } float_tests[] = { | |
| 88 { Vector2dF(0, 0), -Vector2d(0, 0) }, | |
| 89 { Vector2dF(-0.3f, -0.3f), -Vector2dF(0.3f, 0.3f) }, | |
| 90 { Vector2dF(0.3f, 0.3f), -Vector2dF(-0.3f, -0.3f) }, | |
| 91 { Vector2dF(-0.3f, 0.3f), -Vector2dF(0.3f, -0.3f) }, | |
| 92 { Vector2dF(0.3f, -0.3f), -Vector2dF(-0.3f, 0.3f) } | |
| 93 }; | |
| 94 | |
| 95 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(float_tests); ++i) | |
| 96 EXPECT_EQ(float_tests[i].expected.ToString(), | |
| 97 float_tests[i].actual.ToString()); | |
| 98 } | |
| 99 | |
| 100 TEST(Vector2dTest, Scale) { | |
| 101 float double_values[][4] = { | |
| 102 { 4.5f, 1.2f, 3.3f, 5.6f }, | |
| 103 { 4.5f, -1.2f, 3.3f, 5.6f }, | |
| 104 { 4.5f, 1.2f, 3.3f, -5.6f }, | |
| 105 { 4.5f, 1.2f, -3.3f, -5.6f }, | |
| 106 { -4.5f, 1.2f, 3.3f, 5.6f }, | |
| 107 { -4.5f, 1.2f, 0, 5.6f }, | |
| 108 { -4.5f, 1.2f, 3.3f, 0 }, | |
| 109 { 4.5f, 0, 3.3f, 5.6f }, | |
| 110 { 0, 1.2f, 3.3f, 5.6f } | |
| 111 }; | |
| 112 | |
| 113 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(double_values); ++i) { | |
| 114 Vector2dF v(double_values[i][0], double_values[i][1]); | |
| 115 v.Scale(double_values[i][2], double_values[i][3]); | |
| 116 EXPECT_EQ(v.x(), double_values[i][0] * double_values[i][2]); | |
| 117 EXPECT_EQ(v.y(), double_values[i][1] * double_values[i][3]); | |
| 118 | |
| 119 Vector2dF v2 = ScaleVector2d( | |
| 120 gfx::Vector2dF(double_values[i][0], double_values[i][1]), | |
| 121 double_values[i][2], double_values[i][3]); | |
| 122 EXPECT_EQ(double_values[i][0] * double_values[i][2], v2.x()); | |
| 123 EXPECT_EQ(double_values[i][1] * double_values[i][3], v2.y()); | |
| 124 } | |
| 125 | |
| 126 float single_values[][3] = { | |
| 127 { 4.5f, 1.2f, 3.3f }, | |
| 128 { 4.5f, -1.2f, 3.3f }, | |
| 129 { 4.5f, 1.2f, 3.3f }, | |
| 130 { 4.5f, 1.2f, -3.3f }, | |
| 131 { -4.5f, 1.2f, 3.3f }, | |
| 132 { -4.5f, 1.2f, 0 }, | |
| 133 { -4.5f, 1.2f, 3.3f }, | |
| 134 { 4.5f, 0, 3.3f }, | |
| 135 { 0, 1.2f, 3.3f } | |
| 136 }; | |
| 137 | |
| 138 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(single_values); ++i) { | |
| 139 Vector2dF v(single_values[i][0], single_values[i][1]); | |
| 140 v.Scale(single_values[i][2]); | |
| 141 EXPECT_EQ(v.x(), single_values[i][0] * single_values[i][2]); | |
| 142 EXPECT_EQ(v.y(), single_values[i][1] * single_values[i][2]); | |
| 143 | |
| 144 Vector2dF v2 = ScaleVector2d( | |
| 145 gfx::Vector2dF(double_values[i][0], double_values[i][1]), | |
| 146 double_values[i][2]); | |
| 147 EXPECT_EQ(single_values[i][0] * single_values[i][2], v2.x()); | |
| 148 EXPECT_EQ(single_values[i][1] * single_values[i][2], v2.y()); | |
| 149 } | |
| 150 } | |
| 151 | |
| 152 TEST(Vector2dTest, Length) { | |
| 153 int int_values[][2] = { | |
| 154 { 0, 0 }, | |
| 155 { 10, 20 }, | |
| 156 { 20, 10 }, | |
| 157 { -10, -20 }, | |
| 158 { -20, 10 }, | |
| 159 { 10, -20 }, | |
| 160 }; | |
| 161 | |
| 162 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(int_values); ++i) { | |
| 163 int v0 = int_values[i][0]; | |
| 164 int v1 = int_values[i][1]; | |
| 165 double length_squared = | |
| 166 static_cast<double>(v0) * v0 + static_cast<double>(v1) * v1; | |
| 167 double length = std::sqrt(length_squared); | |
| 168 Vector2d vector(v0, v1); | |
| 169 EXPECT_EQ(static_cast<float>(length_squared), vector.LengthSquared()); | |
| 170 EXPECT_EQ(static_cast<float>(length), vector.Length()); | |
| 171 } | |
| 172 | |
| 173 float float_values[][2] = { | |
| 174 { 0, 0 }, | |
| 175 { 10.5f, 20.5f }, | |
| 176 { 20.5f, 10.5f }, | |
| 177 { -10.5f, -20.5f }, | |
| 178 { -20.5f, 10.5f }, | |
| 179 { 10.5f, -20.5f }, | |
| 180 // A large vector that fails if the Length function doesn't use | |
| 181 // double precision internally. | |
| 182 { 1236278317862780234892374893213178027.12122348904204230f, | |
| 183 335890352589839028212313231225425134332.38123f }, | |
| 184 }; | |
| 185 | |
| 186 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(float_values); ++i) { | |
| 187 double v0 = float_values[i][0]; | |
| 188 double v1 = float_values[i][1]; | |
| 189 double length_squared = | |
| 190 static_cast<double>(v0) * v0 + static_cast<double>(v1) * v1; | |
| 191 double length = std::sqrt(length_squared); | |
| 192 Vector2dF vector(v0, v1); | |
| 193 EXPECT_DOUBLE_EQ(length_squared, vector.LengthSquared()); | |
| 194 EXPECT_FLOAT_EQ(static_cast<float>(length), vector.Length()); | |
| 195 } | |
| 196 } | |
| 197 | |
| 198 TEST(Vector2dTest, ClampVector2d) { | |
| 199 Vector2d a; | |
| 200 | |
| 201 a = Vector2d(3, 5); | |
| 202 EXPECT_EQ(Vector2d(3, 5).ToString(), a.ToString()); | |
| 203 a.SetToMax(Vector2d(2, 4)); | |
| 204 EXPECT_EQ(Vector2d(3, 5).ToString(), a.ToString()); | |
| 205 a.SetToMax(Vector2d(3, 5)); | |
| 206 EXPECT_EQ(Vector2d(3, 5).ToString(), a.ToString()); | |
| 207 a.SetToMax(Vector2d(4, 2)); | |
| 208 EXPECT_EQ(Vector2d(4, 5).ToString(), a.ToString()); | |
| 209 a.SetToMax(Vector2d(8, 10)); | |
| 210 EXPECT_EQ(Vector2d(8, 10).ToString(), a.ToString()); | |
| 211 | |
| 212 a.SetToMin(Vector2d(9, 11)); | |
| 213 EXPECT_EQ(Vector2d(8, 10).ToString(), a.ToString()); | |
| 214 a.SetToMin(Vector2d(8, 10)); | |
| 215 EXPECT_EQ(Vector2d(8, 10).ToString(), a.ToString()); | |
| 216 a.SetToMin(Vector2d(11, 9)); | |
| 217 EXPECT_EQ(Vector2d(8, 9).ToString(), a.ToString()); | |
| 218 a.SetToMin(Vector2d(7, 11)); | |
| 219 EXPECT_EQ(Vector2d(7, 9).ToString(), a.ToString()); | |
| 220 a.SetToMin(Vector2d(3, 5)); | |
| 221 EXPECT_EQ(Vector2d(3, 5).ToString(), a.ToString()); | |
| 222 } | |
| 223 | |
| 224 TEST(Vector2dTest, ClampVector2dF) { | |
| 225 Vector2dF a; | |
| 226 | |
| 227 a = Vector2dF(3.5f, 5.5f); | |
| 228 EXPECT_EQ(Vector2dF(3.5f, 5.5f).ToString(), a.ToString()); | |
| 229 a.SetToMax(Vector2dF(2.5f, 4.5f)); | |
| 230 EXPECT_EQ(Vector2dF(3.5f, 5.5f).ToString(), a.ToString()); | |
| 231 a.SetToMax(Vector2dF(3.5f, 5.5f)); | |
| 232 EXPECT_EQ(Vector2dF(3.5f, 5.5f).ToString(), a.ToString()); | |
| 233 a.SetToMax(Vector2dF(4.5f, 2.5f)); | |
| 234 EXPECT_EQ(Vector2dF(4.5f, 5.5f).ToString(), a.ToString()); | |
| 235 a.SetToMax(Vector2dF(8.5f, 10.5f)); | |
| 236 EXPECT_EQ(Vector2dF(8.5f, 10.5f).ToString(), a.ToString()); | |
| 237 | |
| 238 a.SetToMin(Vector2dF(9.5f, 11.5f)); | |
| 239 EXPECT_EQ(Vector2dF(8.5f, 10.5f).ToString(), a.ToString()); | |
| 240 a.SetToMin(Vector2dF(8.5f, 10.5f)); | |
| 241 EXPECT_EQ(Vector2dF(8.5f, 10.5f).ToString(), a.ToString()); | |
| 242 a.SetToMin(Vector2dF(11.5f, 9.5f)); | |
| 243 EXPECT_EQ(Vector2dF(8.5f, 9.5f).ToString(), a.ToString()); | |
| 244 a.SetToMin(Vector2dF(7.5f, 11.5f)); | |
| 245 EXPECT_EQ(Vector2dF(7.5f, 9.5f).ToString(), a.ToString()); | |
| 246 a.SetToMin(Vector2dF(3.5f, 5.5f)); | |
| 247 EXPECT_EQ(Vector2dF(3.5f, 5.5f).ToString(), a.ToString()); | |
| 248 } | |
| 249 | |
| 250 } // namespace gfx | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 109433013:
Move geometric types to a separate, more lightweight target. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src