/*
 * Copyright (c) 2013, Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
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 *
 *     * Redistributions of source code must retain the above copyright
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 * in the documentation and/or other materials provided with the
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 * contributors may be used to endorse or promote products derived from
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 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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 */

#include "config.h"
#include "core/animation/AnimatableColor.h"

#include <gtest/gtest.h>

using namespace WebCore;

namespace {

TEST(CoreAnimationAnimatableColorTest, ToColor)
{
    Color transparent = AnimatableColorImpl(Color::transparent).toColor();
    EXPECT_TRUE(transparent.isValid());
    EXPECT_EQ(transparent.rgb(), Color::transparent);
    Color red = AnimatableColorImpl(Color(0xFFFF0000)).toColor();
    EXPECT_TRUE(red.isValid());
    EXPECT_EQ(red.rgb(), 0xFFFF0000);
}

TEST(CoreAnimationAnimatableColorTest, Interpolate)
{
    EXPECT_EQ(AnimatableColorImpl(Color(0xFF00FF00)).interpolateTo(Color(0xFF00FF00), -10).toColor().rgb(), 0xFF00FF00);
    EXPECT_EQ(AnimatableColorImpl(Color(0xFF00FF00)).interpolateTo(Color(0xFFFF00FF), -10).toColor().rgb(), 0xFF00FF00);
    EXPECT_EQ(AnimatableColorImpl(Color(0xFF00FF00)).interpolateTo(Color(0xFFFF00FF), 0).toColor().rgb(), 0xFF00FF00);
    EXPECT_EQ(AnimatableColorImpl(Color(0xFF00FF00)).interpolateTo(Color(0xFFFF00FF), 1. / 255).toColor().rgb(), 0xFF01FE01);
    EXPECT_EQ(AnimatableColorImpl(Color(0xFF00FF00)).interpolateTo(Color(0xFFFF00FF), 0.5).toColor().rgb(), 0xFF808080);
    EXPECT_EQ(AnimatableColorImpl(Color(0xFF00FF00)).interpolateTo(Color(0xFFFF00FF), 254. / 255).toColor().rgb(), 0xFFFE01FE);
    EXPECT_EQ(AnimatableColorImpl(Color(0xFF00FF00)).interpolateTo(Color(0xFFFF00FF), 1).toColor().rgb(), 0xFFFF00FF);
    EXPECT_EQ(AnimatableColorImpl(Color(0xFF00FF00)).interpolateTo(Color(0xFFFF00FF), 10).toColor().rgb(), 0xFFFF00FF);

    EXPECT_EQ(AnimatableColorImpl(Color(0xFF001020)).interpolateTo(Color(0xFF4080C0), 3. / 16).toColor().rgb(), 0xFF0C253E);

    EXPECT_EQ(AnimatableColorImpl(Color(0x0000FF00)).interpolateTo(Color(0xFFFF00FF), 0.5).toColor().rgb(), 0x80FF00FF);
    EXPECT_EQ(AnimatableColorImpl(Color(0x4000FF00)).interpolateTo(Color(0x80FF00FF), 0.5).toColor().rgb(), 0x60AA55AAu);
    EXPECT_EQ(AnimatableColorImpl(Color(0x40FF00FF)).interpolateTo(Color(0x80FFFFFF), 0.5).toColor().rgb(), 0x60FFAAFFu);

    EXPECT_EQ(AnimatableColorImpl(Color(0x10204080)).interpolateTo(Color(0x104080C0), 0.5).toColor().rgb(), 0x103060A0u);
}

TEST(CoreAnimationAnimatableColorTest, Add)
{
    EXPECT_EQ(AnimatableColorImpl(Color(0xFF012345)).addWith(Color(0xFF543210)).toColor().rgb(), 0xFF555555);
    EXPECT_EQ(AnimatableColorImpl(Color(0xFF808080)).addWith(Color(0xFF808080)).toColor().rgb(), 0xFFFFFFFF);
    EXPECT_EQ(AnimatableColorImpl(Color(0x80FFFFFF)).addWith(Color(0x80FFFFFF)).toColor().rgb(), 0xFFFFFFFF);
    EXPECT_EQ(AnimatableColorImpl(Color(0x40FFFFFF)).addWith(Color(0x40FFFFFF)).toColor().rgb(), 0x80FFFFFF);
    EXPECT_EQ(AnimatableColorImpl(Color(0x40004080)).addWith(Color(0x80804000)).toColor().rgb(), 0xC055402B);
    EXPECT_EQ(AnimatableColorImpl(Color(0x10204080)).addWith(Color(0x104080C0)).toColor().rgb(), 0x203060A0u);
}

}