1/* 2 * Copyright (C) 2013 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY 17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 */ 24 25#include "config.h" 26 27#include "platform/animation/UnitBezier.h" 28 29#include <gtest/gtest.h> 30 31using namespace blink; 32 33namespace { 34 35TEST(UnitBezierTest, BasicUse) 36{ 37 UnitBezier bezier(0.5, 1.0, 0.5, 1.0); 38 EXPECT_EQ(0.875, bezier.solve(0.5, 0.005)); 39} 40 41TEST(UnitBezierTest, Overshoot) 42{ 43 UnitBezier bezier(0.5, 2.0, 0.5, 2.0); 44 EXPECT_EQ(1.625, bezier.solve(0.5, 0.005)); 45} 46 47TEST(UnitBezierTest, Undershoot) 48{ 49 UnitBezier bezier(0.5, -1.0, 0.5, -1.0); 50 EXPECT_EQ(-0.625, bezier.solve(0.5, 0.005)); 51} 52 53TEST(UnitBezierTest, InputAtEdgeOfRange) 54{ 55 UnitBezier bezier(0.5, 1.0, 0.5, 1.0); 56 EXPECT_EQ(0.0, bezier.solve(0.0, 0.005)); 57 EXPECT_EQ(1.0, bezier.solve(1.0, 0.005)); 58} 59 60TEST(UnitBezierTest, InputOutOfRange) 61{ 62 UnitBezier bezier(0.5, 1.0, 0.5, 1.0); 63 EXPECT_EQ(-2.0, bezier.solve(-1.0, 0.005)); 64 EXPECT_EQ(1.0, bezier.solve(2.0, 0.005)); 65} 66 67TEST(UnitBezierTest, InputOutOfRangeLargeEpsilon) 68{ 69 UnitBezier bezier(0.5, 1.0, 0.5, 1.0); 70 EXPECT_EQ(-2.0, bezier.solve(-1.0, 1.0)); 71 EXPECT_EQ(1.0, bezier.solve(2.0, 1.0)); 72} 73 74TEST(UnitBezierTest, InputOutOfRangeCoincidentEndpoints) 75{ 76 UnitBezier bezier(0.0, 0.0, 1.0, 1.0); 77 EXPECT_EQ(-1.0, bezier.solve(-1.0, 0.005)); 78 EXPECT_EQ(2.0, bezier.solve(2.0, 0.005)); 79} 80 81TEST(UnitBezierTest, InputOutOfRangeVerticalGradient) 82{ 83 UnitBezier bezier(0.0, 1.0, 1.0, 0.0); 84 EXPECT_EQ(0.0, bezier.solve(-1.0, 0.005)); 85 EXPECT_EQ(1.0, bezier.solve(2.0, 0.005)); 86} 87 88TEST(UnitBezierTest, InputOutOfRangeDistinctEndpoints) 89{ 90 UnitBezier bezier(0.1, 0.2, 0.8, 0.8); 91 EXPECT_EQ(-2.0, bezier.solve(-1.0, 0.005)); 92 EXPECT_EQ(2.0, bezier.solve(2.0, 0.005)); 93} 94 95} // namespace 96