TEST_F(ScrollingCoordinatorTest, overflowScrolling)
{
registerMockedHttpURLLoad("overflow-scrolling.html");
navigateTo(m_baseURL + "overflow-scrolling.html");
forceFullCompositingUpdate();
// Verify the properties of the accelerated scrolling element starting from the LayoutObject
// all the way to the WebLayer.
Element* scrollableElement = frame()->document()->getElementById("scrollable");
ASSERT(scrollableElement);
LayoutObject* layoutObject = scrollableElement->layoutObject();
ASSERT_TRUE(layoutObject->isBox());
ASSERT_TRUE(layoutObject->hasLayer());
LayoutBox* box = toLayoutBox(layoutObject);
ASSERT_TRUE(box->usesCompositedScrolling());
ASSERT_EQ(PaintsIntoOwnBacking, box->layer()->compositingState());
CompositedLayerMapping* compositedLayerMapping = box->layer()->compositedLayerMapping();
ASSERT_TRUE(compositedLayerMapping->hasScrollingLayer());
ASSERT(compositedLayerMapping->scrollingContentsLayer());
GraphicsLayer* graphicsLayer = compositedLayerMapping->scrollingContentsLayer();
ASSERT_EQ(box->layer()->scrollableArea(), graphicsLayer->scrollableArea());
WebLayer* webScrollLayer = compositedLayerMapping->scrollingContentsLayer()->platformLayer();
ASSERT_TRUE(webScrollLayer->scrollable());
ASSERT_TRUE(webScrollLayer->userScrollableHorizontal());
ASSERT_TRUE(webScrollLayer->userScrollableVertical());
#if OS(ANDROID)
// Now verify we've attached impl-side scrollbars onto the scrollbar layers
ASSERT_TRUE(compositedLayerMapping->layerForHorizontalScrollbar());
ASSERT_TRUE(compositedLayerMapping->layerForHorizontalScrollbar()->hasContentsLayer());
ASSERT_TRUE(compositedLayerMapping->layerForVerticalScrollbar());
ASSERT_TRUE(compositedLayerMapping->layerForVerticalScrollbar()->hasContentsLayer());
#endif
}
