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Diffstat (limited to 'chromium/ui/gfx/point_unittest.cc')
| -rw-r--r-- | chromium/ui/gfx/point_unittest.cc | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/chromium/ui/gfx/point_unittest.cc b/chromium/ui/gfx/point_unittest.cc new file mode 100644 index 00000000000..6cf73dd2adb --- /dev/null +++ b/chromium/ui/gfx/point_unittest.cc @@ -0,0 +1,174 @@ +// 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 "ui/gfx/point_base.h" + +#include "base/basictypes.h" +#include "testing/gtest/include/gtest/gtest.h" +#include "ui/gfx/point.h" +#include "ui/gfx/point_conversions.h" +#include "ui/gfx/point_f.h" + +namespace gfx { + +namespace { + +int TestPointF(const PointF& p) { + return p.x(); +} + +} // namespace + +TEST(PointTest, ToPointF) { + // Check that implicit conversion from integer to float compiles. + Point a(10, 20); + float x = TestPointF(a); + EXPECT_EQ(x, a.x()); + + PointF b(10, 20); + EXPECT_EQ(a, b); + EXPECT_EQ(b, a); +} + +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 < ARRAYSIZE_UNSAFE(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(Point(), 2).ToString()); + EXPECT_EQ(PointF().ToString(), ScalePoint(Point(), 2, 2).ToString()); + + EXPECT_EQ(PointF(2, -2).ToString(), + ScalePoint(Point(1, -1), 2).ToString()); + EXPECT_EQ(PointF(2, -2).ToString(), + ScalePoint(Point(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()); +} + +} // namespace gfx |