Imported WebKit commit 2ea9d364d0f6efa8fa64acf19f451504c59be0e4 (http://svn.webkit.org/repository/webkit/trunk@104285)

1 files changed, 166 insertions, 0 deletions

diff --git a/Source/WebKit/chromium/tests/CCLayerImplTest.cpp b/Source/WebKit/chromium/tests/CCLayerImplTest.cpp
new file mode 100644
index 000000000..165405d49
--- /dev/null
+++ b/Source/WebKit/chromium/tests/CCLayerImplTest.cpp
@@ -0,0 +1,166 @@
+/*
+ * 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/CCLayerImpl.h"
+
+#include "cc/CCSingleThreadProxy.h"
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+
+using namespace WebCore;
+
+namespace {
+
+#define EXECUTE_AND_VERIFY_SUBTREE_CHANGED(codeToTest)                  \
+    root->resetAllChangeTrackingForSubtree();                           \
+    codeToTest;                                                         \
+    EXPECT_TRUE(root->layerPropertyChanged());                          \
+    EXPECT_TRUE(child->layerPropertyChanged());                         \
+    EXPECT_TRUE(grandChild->layerPropertyChanged())
+
+#define EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(codeToTest)           \
+    root->resetAllChangeTrackingForSubtree();                           \
+    codeToTest;                                                         \
+    EXPECT_FALSE(root->layerPropertyChanged());                         \
+    EXPECT_FALSE(child->layerPropertyChanged());                        \
+    EXPECT_FALSE(grandChild->layerPropertyChanged())
+
+#define EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(codeToTest)               \
+    root->resetAllChangeTrackingForSubtree();                           \
+    codeToTest;                                                         \
+    EXPECT_TRUE(root->layerPropertyChanged());                          \
+    EXPECT_FALSE(child->layerPropertyChanged());                        \
+    EXPECT_FALSE(grandChild->layerPropertyChanged())
+
+TEST(CCLayerImplTest, verifyLayerChangesAreTrackedProperly)
+{
+    //
+    // This test checks that layerPropertyChanged() has the correct behavior.
+    //
+
+    // The constructor on this will fake that we are on the correct thread.
+    DebugScopedSetImplThread setImplThread;
+
+    // Create a simple CCLayerImpl tree:
+    RefPtr<CCLayerImpl> root = CCLayerImpl::create(1);
+    RefPtr<CCLayerImpl> child = CCLayerImpl::create(2);
+    RefPtr<CCLayerImpl> grandChild = CCLayerImpl::create(3);
+    root->addChild(child);
+    child->addChild(grandChild);
+
+    RefPtr<CCLayerImpl> dummyMask = CCLayerImpl::create(4);
+    RefPtr<CCLayerImpl> dummyReplica = CCLayerImpl::create(5);
+
+    // Adding children is an internal operation and should not mark layers as changed.
+    EXPECT_FALSE(root->layerPropertyChanged());
+    EXPECT_FALSE(child->layerPropertyChanged());
+    EXPECT_FALSE(grandChild->layerPropertyChanged());
+
+    FloatPoint arbitraryFloatPoint = FloatPoint(0.125f, 0.25f);
+    float arbitraryNumber = 0.352f;
+    IntSize arbitraryIntSize = IntSize(111, 222);
+    IntPoint arbitraryIntPoint = IntPoint(333, 444);
+    IntRect arbitraryIntRect = IntRect(arbitraryIntPoint, arbitraryIntSize);
+    FloatRect arbitraryFloatRect = FloatRect(arbitraryFloatPoint, FloatSize(1.234, 5.678));
+    Color arbitraryColor = Color(10, 20, 30);
+    TransformationMatrix arbitraryTransform;
+    arbitraryTransform.scale3d(0.1, 0.2, 0.3);
+
+    // Changing these properties affects the entire subtree of layers.
+    EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setAnchorPoint(arbitraryFloatPoint));
+    EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setAnchorPointZ(arbitraryNumber));
+    EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setMaskLayer(dummyMask));
+    EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setMasksToBounds(true));
+    EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setOpaque(true));
+    EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setOpacity(arbitraryNumber));
+    EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setReplicaLayer(dummyReplica));
+    EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setPosition(arbitraryFloatPoint));
+    EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setPreserves3D(true));
+    EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setTransform(arbitraryTransform));
+    EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setDoubleSided(false)); // constructor initializes it to "true".
+    EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->scrollBy(arbitraryIntSize));
+    EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setScrollDelta(arbitraryIntSize));
+    EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setScrollPosition(arbitraryIntPoint));
+    EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setPageScaleDelta(arbitraryNumber));
+
+    // Changing these properties only affects the layer itself.
+    EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->setContentBounds(arbitraryIntSize));
+    EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->setDebugBorderColor(arbitraryColor));
+    EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->setDebugBorderWidth(arbitraryNumber));
+    EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->setDrawsContent(true));
+    EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->setBackgroundColor(Color::gray));
+
+    // Special case: check that sublayer transform changes all layer's descendants, but not the layer itself.
+    root->resetAllChangeTrackingForSubtree();
+    root->setSublayerTransform(arbitraryTransform);
+    EXPECT_FALSE(root->layerPropertyChanged());
+    EXPECT_TRUE(child->layerPropertyChanged());
+    EXPECT_TRUE(grandChild->layerPropertyChanged());
+
+    // Special case: check that setBounds changes behavior depending on masksToBounds.
+    root->setMasksToBounds(false);
+    EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->setBounds(IntSize(135, 246)));
+    root->setMasksToBounds(true);
+    EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setBounds(arbitraryIntSize)); // should be a different size than previous call, to ensure it marks tree changed.
+
+    // After setting all these properties already, setting to the exact same values again should
+    // not cause any change.
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setAnchorPoint(arbitraryFloatPoint));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setAnchorPointZ(arbitraryNumber));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setMaskLayer(dummyMask));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setMasksToBounds(true));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setReplicaLayer(dummyReplica));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setPosition(arbitraryFloatPoint));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setPreserves3D(true));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setTransform(arbitraryTransform));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDoubleSided(false)); // constructor initializes it to "true".
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setScrollDelta(arbitraryIntSize));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setScrollPosition(arbitraryIntPoint));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setPageScaleDelta(arbitraryNumber));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setContentBounds(arbitraryIntSize));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setOpaque(true));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setOpacity(arbitraryNumber));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDebugBorderColor(arbitraryColor));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDebugBorderWidth(arbitraryNumber));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDrawsContent(true));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setSublayerTransform(arbitraryTransform));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setBounds(arbitraryIntSize));
+
+    // These properties are internal, and should not be considered "change" when they are used.
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setIsNonCompositedContent(true));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setClipRect(arbitraryIntRect));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setUsesLayerClipping(true));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDrawOpacity(arbitraryNumber));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setTargetRenderSurface(0));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDrawTransform(arbitraryTransform));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setScreenSpaceTransform(arbitraryTransform));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDrawableContentRect(arbitraryIntRect));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setUpdateRect(arbitraryFloatRect));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setVisibleLayerRect(arbitraryIntRect));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setMaxScrollPosition(arbitraryIntSize));
+}
+
+} // namespace