/*
 * 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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 *
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 * in the documentation and/or other materials provided with the
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 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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#include "config.h"

#include "core/platform/graphics/gpu/DrawingBuffer.h"

#include "core/platform/graphics/GraphicsContext3D.h"
#include "core/tests/FakeWebGraphicsContext3D.h"
#include "public/platform/Platform.h"
#include "wtf/RefPtr.h"

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

using namespace WebCore;
using namespace WebKit;
using testing::Test;
using testing::_;

namespace {

class FakeContextEvictionManager : public ContextEvictionManager {
public:
    void forciblyLoseOldestContext(const String& reason) { }
    IntSize oldestContextSize() { return IntSize(); }
};

} // namespace

class DrawingBufferTest : public Test {
protected:
    virtual void SetUp()
    {
        RefPtr<FakeContextEvictionManager> contextEvictionManager = adoptRef(new FakeContextEvictionManager());
        RefPtr<GraphicsContext3D> context = GraphicsContext3D::createGraphicsContextFromWebContext(adoptPtr(new FakeWebGraphicsContext3D));
        const IntSize size(100, 100);
        m_drawingBuffer = DrawingBuffer::create(context.get(), size, DrawingBuffer::Discard, contextEvictionManager.release());
    }

    RefPtr<DrawingBuffer> m_drawingBuffer;
};

namespace {

TEST_F(DrawingBufferTest, verifyNoNewBuffersAfterContextLostWithMailboxes)
{
    // Tell the buffer its contents changed and context was lost.
    m_drawingBuffer->markContentsChanged();
    m_drawingBuffer->releaseResources();

    WebKit::WebExternalTextureMailbox mailbox;
    EXPECT_FALSE(m_drawingBuffer->prepareMailbox(&mailbox, 0));
}

} // namespace