| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <stddef.h> |
| |
| #include "base/stl_util.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "ui/gfx/geometry/point.h" |
| #include "ui/gfx/geometry/point_conversions.h" |
| #include "ui/gfx/geometry/point_f.h" |
| |
| namespace gfx { |
| |
| TEST(PointTest, ToPointF) { |
| // Check that explicit conversion from integer to float compiles. |
| Point a(10, 20); |
| PointF b = PointF(a); |
| |
| EXPECT_EQ(static_cast<float>(a.x()), b.x()); |
| EXPECT_EQ(static_cast<float>(a.y()), b.y()); |
| } |
| |
| TEST(PointTest, IsOrigin) { |
| EXPECT_FALSE(Point(1, 0).IsOrigin()); |
| EXPECT_FALSE(Point(0, 1).IsOrigin()); |
| EXPECT_FALSE(Point(1, 2).IsOrigin()); |
| EXPECT_FALSE(Point(-1, 0).IsOrigin()); |
| EXPECT_FALSE(Point(0, -1).IsOrigin()); |
| EXPECT_FALSE(Point(-1, -2).IsOrigin()); |
| EXPECT_TRUE(Point(0, 0).IsOrigin()); |
| |
| EXPECT_FALSE(PointF(0.1f, 0).IsOrigin()); |
| EXPECT_FALSE(PointF(0, 0.1f).IsOrigin()); |
| EXPECT_FALSE(PointF(0.1f, 2).IsOrigin()); |
| EXPECT_FALSE(PointF(-0.1f, 0).IsOrigin()); |
| EXPECT_FALSE(PointF(0, -0.1f).IsOrigin()); |
| EXPECT_FALSE(PointF(-0.1f, -2).IsOrigin()); |
| EXPECT_TRUE(PointF(0, 0).IsOrigin()); |
| } |
| |
| TEST(PointTest, VectorArithmetic) { |
| Point a(1, 5); |
| Vector2d v1(3, -3); |
| Vector2d v2(-8, 1); |
| |
| static const struct { |
| Point expected; |
| Point actual; |
| } tests[] = { |
| { Point(4, 2), a + v1 }, |
| { Point(-2, 8), a - v1 }, |
| { a, a - v1 + v1 }, |
| { a, a + v1 - v1 }, |
| { a, a + Vector2d() }, |
| { Point(12, 1), a + v1 - v2 }, |
| { Point(-10, 9), a - v1 + v2 } |
| }; |
| |
| for (size_t i = 0; i < base::size(tests); ++i) |
| EXPECT_EQ(tests[i].expected.ToString(), tests[i].actual.ToString()); |
| } |
| |
| TEST(PointTest, OffsetFromPoint) { |
| Point a(1, 5); |
| Point b(-20, 8); |
| EXPECT_EQ(Vector2d(-20 - 1, 8 - 5).ToString(), (b - a).ToString()); |
| } |
| |
| TEST(PointTest, ToRoundedPoint) { |
| EXPECT_EQ(Point(0, 0), ToRoundedPoint(PointF(0, 0))); |
| EXPECT_EQ(Point(0, 0), ToRoundedPoint(PointF(0.0001f, 0.0001f))); |
| EXPECT_EQ(Point(0, 0), ToRoundedPoint(PointF(0.4999f, 0.4999f))); |
| EXPECT_EQ(Point(1, 1), ToRoundedPoint(PointF(0.5f, 0.5f))); |
| EXPECT_EQ(Point(1, 1), ToRoundedPoint(PointF(0.9999f, 0.9999f))); |
| |
| EXPECT_EQ(Point(10, 10), ToRoundedPoint(PointF(10, 10))); |
| EXPECT_EQ(Point(10, 10), ToRoundedPoint(PointF(10.0001f, 10.0001f))); |
| EXPECT_EQ(Point(10, 10), ToRoundedPoint(PointF(10.4999f, 10.4999f))); |
| EXPECT_EQ(Point(11, 11), ToRoundedPoint(PointF(10.5f, 10.5f))); |
| EXPECT_EQ(Point(11, 11), ToRoundedPoint(PointF(10.9999f, 10.9999f))); |
| |
| EXPECT_EQ(Point(-10, -10), ToRoundedPoint(PointF(-10, -10))); |
| EXPECT_EQ(Point(-10, -10), ToRoundedPoint(PointF(-10.0001f, -10.0001f))); |
| EXPECT_EQ(Point(-10, -10), ToRoundedPoint(PointF(-10.4999f, -10.4999f))); |
| EXPECT_EQ(Point(-11, -11), ToRoundedPoint(PointF(-10.5f, -10.5f))); |
| EXPECT_EQ(Point(-11, -11), ToRoundedPoint(PointF(-10.9999f, -10.9999f))); |
| } |
| |
| TEST(PointTest, Scale) { |
| EXPECT_EQ(PointF().ToString(), ScalePoint(PointF(), 2).ToString()); |
| EXPECT_EQ(PointF().ToString(), ScalePoint(PointF(), 2, 2).ToString()); |
| |
| EXPECT_EQ(PointF(2, -2).ToString(), ScalePoint(PointF(1, -1), 2).ToString()); |
| EXPECT_EQ(PointF(2, -2).ToString(), |
| ScalePoint(PointF(1, -1), 2, 2).ToString()); |
| |
| PointF zero; |
| PointF one(1, -1); |
| |
| zero.Scale(2); |
| zero.Scale(3, 1.5); |
| |
| one.Scale(2); |
| one.Scale(3, 1.5); |
| |
| EXPECT_EQ(PointF().ToString(), zero.ToString()); |
| EXPECT_EQ(PointF(6, -3).ToString(), one.ToString()); |
| } |
| |
| TEST(PointTest, ClampPoint) { |
| Point a; |
| |
| a = Point(3, 5); |
| EXPECT_EQ(Point(3, 5).ToString(), a.ToString()); |
| a.SetToMax(Point(2, 4)); |
| EXPECT_EQ(Point(3, 5).ToString(), a.ToString()); |
| a.SetToMax(Point(3, 5)); |
| EXPECT_EQ(Point(3, 5).ToString(), a.ToString()); |
| a.SetToMax(Point(4, 2)); |
| EXPECT_EQ(Point(4, 5).ToString(), a.ToString()); |
| a.SetToMax(Point(8, 10)); |
| EXPECT_EQ(Point(8, 10).ToString(), a.ToString()); |
| |
| a.SetToMin(Point(9, 11)); |
| EXPECT_EQ(Point(8, 10).ToString(), a.ToString()); |
| a.SetToMin(Point(8, 10)); |
| EXPECT_EQ(Point(8, 10).ToString(), a.ToString()); |
| a.SetToMin(Point(11, 9)); |
| EXPECT_EQ(Point(8, 9).ToString(), a.ToString()); |
| a.SetToMin(Point(7, 11)); |
| EXPECT_EQ(Point(7, 9).ToString(), a.ToString()); |
| a.SetToMin(Point(3, 5)); |
| EXPECT_EQ(Point(3, 5).ToString(), a.ToString()); |
| } |
| |
| TEST(PointTest, ClampPointF) { |
| PointF a; |
| |
| a = PointF(3.5f, 5.5f); |
| EXPECT_EQ(PointF(3.5f, 5.5f).ToString(), a.ToString()); |
| a.SetToMax(PointF(2.5f, 4.5f)); |
| EXPECT_EQ(PointF(3.5f, 5.5f).ToString(), a.ToString()); |
| a.SetToMax(PointF(3.5f, 5.5f)); |
| EXPECT_EQ(PointF(3.5f, 5.5f).ToString(), a.ToString()); |
| a.SetToMax(PointF(4.5f, 2.5f)); |
| EXPECT_EQ(PointF(4.5f, 5.5f).ToString(), a.ToString()); |
| a.SetToMax(PointF(8.5f, 10.5f)); |
| EXPECT_EQ(PointF(8.5f, 10.5f).ToString(), a.ToString()); |
| |
| a.SetToMin(PointF(9.5f, 11.5f)); |
| EXPECT_EQ(PointF(8.5f, 10.5f).ToString(), a.ToString()); |
| a.SetToMin(PointF(8.5f, 10.5f)); |
| EXPECT_EQ(PointF(8.5f, 10.5f).ToString(), a.ToString()); |
| a.SetToMin(PointF(11.5f, 9.5f)); |
| EXPECT_EQ(PointF(8.5f, 9.5f).ToString(), a.ToString()); |
| a.SetToMin(PointF(7.5f, 11.5f)); |
| EXPECT_EQ(PointF(7.5f, 9.5f).ToString(), a.ToString()); |
| a.SetToMin(PointF(3.5f, 5.5f)); |
| EXPECT_EQ(PointF(3.5f, 5.5f).ToString(), a.ToString()); |
| } |
| |
| TEST(PointTest, Offset) { |
| Point test(3, 4); |
| test.Offset(5, -8); |
| EXPECT_EQ(test, Point(8, -4)); |
| } |
| |
| TEST(PointTest, VectorMath) { |
| Point test = Point(3, 4); |
| test += Vector2d(5, -8); |
| EXPECT_EQ(test, Point(8, -4)); |
| |
| Point test2 = Point(3, 4); |
| test2 -= Vector2d(5, -8); |
| EXPECT_EQ(test2, Point(-2, 12)); |
| } |
| |
| TEST(PointTest, IntegerOverflow) { |
| int int_max = std::numeric_limits<int>::max(); |
| int int_min = std::numeric_limits<int>::min(); |
| |
| Point max_point(int_max, int_max); |
| Point min_point(int_min, int_min); |
| Point test; |
| |
| test = Point(); |
| test.Offset(int_max, int_max); |
| EXPECT_EQ(test, max_point); |
| |
| test = Point(); |
| test.Offset(int_min, int_min); |
| EXPECT_EQ(test, min_point); |
| |
| test = Point(10, 20); |
| test.Offset(int_max, int_max); |
| EXPECT_EQ(test, max_point); |
| |
| test = Point(-10, -20); |
| test.Offset(int_min, int_min); |
| EXPECT_EQ(test, min_point); |
| |
| test = Point(); |
| test += Vector2d(int_max, int_max); |
| EXPECT_EQ(test, max_point); |
| |
| test = Point(); |
| test += Vector2d(int_min, int_min); |
| EXPECT_EQ(test, min_point); |
| |
| test = Point(10, 20); |
| test += Vector2d(int_max, int_max); |
| EXPECT_EQ(test, max_point); |
| |
| test = Point(-10, -20); |
| test += Vector2d(int_min, int_min); |
| EXPECT_EQ(test, min_point); |
| |
| test = Point(); |
| test -= Vector2d(int_max, int_max); |
| EXPECT_EQ(test, Point(-int_max, -int_max)); |
| |
| test = Point(); |
| test -= Vector2d(int_min, int_min); |
| EXPECT_EQ(test, max_point); |
| |
| test = Point(10, 20); |
| test -= Vector2d(int_min, int_min); |
| EXPECT_EQ(test, max_point); |
| |
| test = Point(-10, -20); |
| test -= Vector2d(int_max, int_max); |
| EXPECT_EQ(test, min_point); |
| } |
| |
| } // namespace gfx |