Establish mojo service between Canvas (blink) and SurfaceManager (browser)

third_party/WebKit/Source/platform/graphics/CanvasSurfaceLayerBridgeTest.cpp

+// Copyright 2016 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 "platform/graphics/CanvasSurfaceLayerBridge.h"
+
+#include "cc/surfaces/surface_id.h"
+#include "cc/surfaces/surface_sequence.h"
+#include "platform/graphics/CanvasSurfaceLayerBridgeClient.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "wtf/PtrUtil.h"
+#include "wtf/Vector.h"
+#include <memory>
+
+namespace blink {
+
+class FakeOffscreenCanvasSurfaceImpl {
+public:
+    FakeOffscreenCanvasSurfaceImpl() {}
+    ~FakeOffscreenCanvasSurfaceImpl();
+
+    bool GetSurfaceId(cc::SurfaceId*);
+    void RequestSurfaceCreation(const cc::SurfaceId&);
+
+    bool isSurfaceInSurfaceMap(const cc::SurfaceId&);
+
+private:
+    Vector<cc::SurfaceId> m_fakeSurfaceMap;
+};
+
+//-----------------------------------------------------------------------------
+
+class MockCanvasSurfaceLayerBridgeClient final : public CanvasSurfaceLayerBridgeClient {
+public:
+    explicit MockCanvasSurfaceLayerBridgeClient(FakeOffscreenCanvasSurfaceImpl*);
+    ~MockCanvasSurfaceLayerBridgeClient() override;
+
+    bool syncGetSurfaceId(cc::SurfaceId*) override;
+    void asyncRequestSurfaceCreation(const cc::SurfaceId&) override;
+    void asyncRequire(cc::SurfaceId, cc::SurfaceSequence) override {}
+    void asyncSatisfy(cc::SurfaceSequence) override {};
+
+private:
+    FakeOffscreenCanvasSurfaceImpl* m_service;
+    cc::SurfaceId m_surfaceId;
+};
+
+//-----------------------------------------------------------------------------
+
+class CanvasSurfaceLayerBridgeTest : public testing::Test {
+public:
+    CanvasSurfaceLayerBridge* surfaceLayerBridge() const { return m_surfaceLayerBridge.get(); }
+    FakeOffscreenCanvasSurfaceImpl* surfaceService() const { return m_surfaceService.get(); }
+
+protected:
+    void SetUp() override;
+
+private:
+    std::unique_ptr<FakeOffscreenCanvasSurfaceImpl> m_surfaceService;
+    std::unique_ptr<CanvasSurfaceLayerBridge> m_surfaceLayerBridge;
+};
+
+//-----------------------------------------------------------------------------
+
+MockCanvasSurfaceLayerBridgeClient::MockCanvasSurfaceLayerBridgeClient(FakeOffscreenCanvasSurfaceImpl* surfaceService)
+{
+    m_service = surfaceService;
+}
+
+MockCanvasSurfaceLayerBridgeClient::~MockCanvasSurfaceLayerBridgeClient()
+{
+}
+
+bool MockCanvasSurfaceLayerBridgeClient::syncGetSurfaceId(cc::SurfaceId* surfaceIdPtr)
+{
+    return m_service->GetSurfaceId(surfaceIdPtr);
+}
+
+void MockCanvasSurfaceLayerBridgeClient::asyncRequestSurfaceCreation(const cc::SurfaceId& surfaceId)
+{
+    m_service->RequestSurfaceCreation(surfaceId);
+}
+
+FakeOffscreenCanvasSurfaceImpl::~FakeOffscreenCanvasSurfaceImpl()
+{
+    m_fakeSurfaceMap.clear();
+}
+
+bool FakeOffscreenCanvasSurfaceImpl::GetSurfaceId(cc::SurfaceId* surfaceId)
+{
+    *surfaceId = cc::SurfaceId(10, 15, 0);
+    return true;
+}
+
+void FakeOffscreenCanvasSurfaceImpl::RequestSurfaceCreation(const cc::SurfaceId& surfaceId)
+{
+    m_fakeSurfaceMap.append(surfaceId);
+}
+
+bool FakeOffscreenCanvasSurfaceImpl::isSurfaceInSurfaceMap(const cc::SurfaceId& surfaceId)
+{
+    return m_fakeSurfaceMap.contains(surfaceId);
+}
+
+void CanvasSurfaceLayerBridgeTest::SetUp()
+{
+    m_surfaceService = wrapUnique(new FakeOffscreenCanvasSurfaceImpl());
+    std::unique_ptr<CanvasSurfaceLayerBridgeClient> bridgeClient = wrapUnique(new MockCanvasSurfaceLayerBridgeClient(m_surfaceService.get()));
+    m_surfaceLayerBridge = wrapUnique(new CanvasSurfaceLayerBridge(std::move(bridgeClient)));
+}
+
+TEST_F(CanvasSurfaceLayerBridgeTest, SurfaceLayerCreation)
+{
+    bool success = this->surfaceLayerBridge()->createSurfaceLayer(50, 50);
+    EXPECT_TRUE(this->surfaceService()->isSurfaceInSurfaceMap(this->surfaceLayerBridge()->getSurfaceId()));
+    EXPECT_TRUE(success);
+}
+
+} // namespace blink