1 files changed, 92 insertions, 0 deletions
diff --git a/Source/WebKit/chromium/tests/CCRenderSurfaceTest.cpp b/Source/WebKit/chromium/tests/CCRenderSurfaceTest.cpp
new file mode 100644
index 000000000..c3b366dda
--- /dev/null
+++ b/Source/WebKit/chromium/tests/CCRenderSurfaceTest.cpp
@@ -0,0 +1,92 @@
+/*
+ * 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
+ * are met:
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     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
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#include "cc/CCRenderSurface.h"
+
+#include "cc/CCLayerImpl.h"
+#include "cc/CCSingleThreadProxy.h"
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+
+using namespace WebCore;
+
+namespace {
+
+#define EXECUTE_AND_VERIFY_SURFACE_CHANGED(codeToTest)                  \
+    renderSurface->resetPropertyChangedFlag();                          \
+    codeToTest;                                                         \
+    EXPECT_TRUE(renderSurface->surfacePropertyChanged())
+
+#define EXECUTE_AND_VERIFY_SURFACE_DID_NOT_CHANGE(codeToTest)           \
+    renderSurface->resetPropertyChangedFlag();                          \
+    codeToTest;                                                         \
+    EXPECT_FALSE(renderSurface->surfacePropertyChanged())
+
+TEST(CCRenderSurfaceTest, verifySurfaceChangesAreTrackedProperly)
+{
+    //
+    // This test checks that surfacePropertyChanged() has the correct behavior.
+    //
+
+    // This will fake that we are on the correct thread for testing purposes.
+    DebugScopedSetImplThread setImplThread;
+
+    RefPtr<CCLayerImpl> owningLayer = CCLayerImpl::create(0);
+    owningLayer->createRenderSurface();
+    ASSERT_TRUE(owningLayer->renderSurface());
+    CCRenderSurface* renderSurface = owningLayer->renderSurface();
+    IntRect testRect = IntRect(IntPoint(3, 4), IntSize(5, 6));
+    owningLayer->resetAllChangeTrackingForSubtree();
+
+    // Currently, the contentRect, clipRect, and owningLayer->layerPropertyChanged() are
+    // the only sources of change.
+    EXECUTE_AND_VERIFY_SURFACE_CHANGED(renderSurface->setClipRect(testRect));
+    EXECUTE_AND_VERIFY_SURFACE_CHANGED(renderSurface->setContentRect(testRect));
+
+    owningLayer->setOpacity(0.5f);
+    EXPECT_TRUE(renderSurface->surfacePropertyChanged());
+    owningLayer->resetAllChangeTrackingForSubtree();
+
+    // Setting the surface properties to the same values again should not be considered "change".
+    EXECUTE_AND_VERIFY_SURFACE_DID_NOT_CHANGE(renderSurface->setClipRect(testRect));
+    EXECUTE_AND_VERIFY_SURFACE_DID_NOT_CHANGE(renderSurface->setContentRect(testRect));
+
+    RefPtr<CCLayerImpl> dummyMask = CCLayerImpl::create(1);
+    TransformationMatrix dummyMatrix;
+    dummyMatrix.translate(1.0, 2.0);
+
+    // The rest of the surface properties are either internal and should not cause change,
+    // or they are already accounted for by the owninglayer->layerPropertyChanged().
+    EXECUTE_AND_VERIFY_SURFACE_DID_NOT_CHANGE(renderSurface->setDrawOpacity(0.5));
+    EXECUTE_AND_VERIFY_SURFACE_DID_NOT_CHANGE(renderSurface->setDrawTransform(dummyMatrix));
+    EXECUTE_AND_VERIFY_SURFACE_DID_NOT_CHANGE(renderSurface->setReplicaDrawTransform(dummyMatrix));
+    EXECUTE_AND_VERIFY_SURFACE_DID_NOT_CHANGE(renderSurface->setOriginTransform(dummyMatrix));
+    EXECUTE_AND_VERIFY_SURFACE_DID_NOT_CHANGE(renderSurface->setSkipsDraw(true));
+    EXECUTE_AND_VERIFY_SURFACE_DID_NOT_CHANGE(renderSurface->clearLayerList());
+    EXECUTE_AND_VERIFY_SURFACE_DID_NOT_CHANGE(renderSurface->setMaskLayer(dummyMask.get()));
+}
+
+} // namespace