Source/web/tests/Canvas2DLayerBridgeTest.cpp

/*
 * Copyright (C) 2011 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 * 1.  Redistributions of source code must retain the above copyright
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 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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#include "config.h"

#include "platform/graphics/Canvas2DLayerBridge.h"

#include "SkDeferredCanvas.h"
#include "SkSurface.h"
#include "platform/graphics/ImageBuffer.h"
#include "public/platform/Platform.h"
#include "public/platform/WebThread.h"
#include "third_party/skia/include/core/SkDevice.h"
#include "web/tests/MockWebGraphicsContext3D.h"
#include "wtf/RefPtr.h"

#include <gmock/gmock.h>
#include <gtest/gtest.h>

using namespace WebCore;
using namespace blink;
using testing::InSequence;
using testing::Return;
using testing::Test;

namespace {

class MockCanvasContext : public MockWebGraphicsContext3D {
public:
    MOCK_METHOD0(flush, void(void));
    MOCK_METHOD0(createTexture, unsigned(void));
    MOCK_METHOD1(deleteTexture, void(unsigned));
};

class Canvas2DLayerBridgePtr {
public:
    Canvas2DLayerBridgePtr(PassRefPtr<Canvas2DLayerBridge> layerBridge)
        : m_layerBridge(layerBridge) { }

    ~Canvas2DLayerBridgePtr()
    {
        m_layerBridge->beginDestruction();
    }

    Canvas2DLayerBridge* operator->() { return m_layerBridge.get(); }
    Canvas2DLayerBridge* get() { return m_layerBridge.get(); }

private:
    RefPtr<Canvas2DLayerBridge> m_layerBridge;
};

} // namespace

class Canvas2DLayerBridgeTest : public Test {
protected:
    void fullLifecycleTest()
    {
        RefPtr<GraphicsContext3D> mainContext = GraphicsContext3D::createGraphicsContextFromWebContext(adoptPtr(new MockCanvasContext));

        MockCanvasContext& mainMock = *static_cast<MockCanvasContext*>(mainContext->webContext());

        OwnPtr<SkDeferredCanvas> canvas = adoptPtr(SkDeferredCanvas::Create(SkSurface::NewRasterPMColor(300, 150)));

        ::testing::Mock::VerifyAndClearExpectations(&mainMock);

        {
            Canvas2DLayerBridgePtr bridge(adoptRef(new Canvas2DLayerBridge(mainContext.release(), canvas.release(), 0, NonOpaque)));

            ::testing::Mock::VerifyAndClearExpectations(&mainMock);

            EXPECT_CALL(mainMock, flush());
            unsigned textureId = bridge->getBackingTexture();
            EXPECT_EQ(textureId, 0u);

            ::testing::Mock::VerifyAndClearExpectations(&mainMock);
        } // bridge goes out of scope here

        ::testing::Mock::VerifyAndClearExpectations(&mainMock);
    }
};

namespace {

TEST_F(Canvas2DLayerBridgeTest, testFullLifecycleSingleThreaded)
{
    fullLifecycleTest();
}

} // namespace