Index: cc/layers/painted_scrollbar_layer_unittest.cc |
diff --git a/cc/layers/painted_scrollbar_layer_unittest.cc b/cc/layers/painted_scrollbar_layer_unittest.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..ac814eec91c50cbd140a8582a2e50fcc27698f93 |
--- /dev/null |
+++ b/cc/layers/painted_scrollbar_layer_unittest.cc |
@@ -0,0 +1,87 @@ |
+// Copyright 2015 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 "cc/layers/painted_scrollbar_layer.h" |
+ |
+#include "cc/layers/layer_settings.h" |
+#include "cc/test/fake_layer_tree_host.h" |
+#include "cc/test/fake_layer_tree_host_client.h" |
+#include "cc/test/fake_scrollbar.h" |
+#include "cc/test/test_task_graph_runner.h" |
+#include "testing/gmock/include/gmock/gmock.h" |
+ |
+using ::testing::Mock; |
+using ::testing::_; |
+ |
+namespace cc { |
+ |
+namespace { |
+ |
+class MockScrollbar : public FakeScrollbar { |
+ public: |
+ MockScrollbar() : FakeScrollbar(true, true, true) {} |
+ MOCK_METHOD3(PaintPart, |
+ void(SkCanvas* canvas, |
+ ScrollbarPart part, |
+ const gfx::Rect& content_rect)); |
+}; |
+ |
+TEST(PaintedScrollbarLayerTest, NeedsPaint) { |
+ FakeLayerTreeHostClient fake_client_(FakeLayerTreeHostClient::DIRECT_3D); |
+ TestTaskGraphRunner task_graph_runner_; |
+ scoped_ptr<FakeLayerTreeHost> layer_tree_host_; |
+ LayerSettings layer_settings_; |
+ |
+ layer_tree_host_ = |
+ FakeLayerTreeHost::Create(&fake_client_, &task_graph_runner_); |
+ RendererCapabilities renderer_capabilities; |
+ renderer_capabilities.max_texture_size = 2048; |
+ layer_tree_host_->set_renderer_capabilities(renderer_capabilities); |
+ |
+ MockScrollbar* scrollbar = new MockScrollbar(); |
+ scoped_refptr<PaintedScrollbarLayer> scrollbar_layer = |
+ PaintedScrollbarLayer::Create(layer_settings_, |
+ scoped_ptr<Scrollbar>(scrollbar).Pass(), 1); |
+ |
+ scrollbar_layer->SetIsDrawable(true); |
+ scrollbar_layer->SetBounds(gfx::Size(100, 100)); |
+ |
+ layer_tree_host_->SetRootLayer(scrollbar_layer); |
+ EXPECT_EQ(scrollbar_layer->layer_tree_host(), layer_tree_host_.get()); |
+ scrollbar_layer->SavePaintProperties(); |
+ |
+ // Request no paint, but expect them to be painted because they have not |
+ // yet been initialized. |
+ scrollbar->set_needs_paint_thumb(false); |
+ scrollbar->set_needs_paint_track(false); |
+ EXPECT_CALL(*scrollbar, PaintPart(_, THUMB, _)).Times(1); |
+ EXPECT_CALL(*scrollbar, PaintPart(_, TRACK, _)).Times(1); |
+ scrollbar_layer->Update(); |
+ Mock::VerifyAndClearExpectations(scrollbar); |
+ |
+ // The next update will paint nothing because the first update caused a paint. |
+ EXPECT_CALL(*scrollbar, PaintPart(_, THUMB, _)).Times(0); |
+ EXPECT_CALL(*scrollbar, PaintPart(_, TRACK, _)).Times(0); |
+ scrollbar_layer->Update(); |
+ Mock::VerifyAndClearExpectations(scrollbar); |
+ |
+ // Enable the thumb. |
+ EXPECT_CALL(*scrollbar, PaintPart(_, THUMB, _)).Times(1); |
+ EXPECT_CALL(*scrollbar, PaintPart(_, TRACK, _)).Times(0); |
+ scrollbar->set_needs_paint_thumb(true); |
+ scrollbar->set_needs_paint_track(false); |
+ scrollbar_layer->Update(); |
+ Mock::VerifyAndClearExpectations(scrollbar); |
+ |
+ // Enable the track. |
+ EXPECT_CALL(*scrollbar, PaintPart(_, THUMB, _)).Times(0); |
+ EXPECT_CALL(*scrollbar, PaintPart(_, TRACK, _)).Times(1); |
+ scrollbar->set_needs_paint_thumb(false); |
+ scrollbar->set_needs_paint_track(true); |
+ scrollbar_layer->Update(); |
+ Mock::VerifyAndClearExpectations(scrollbar); |
+} |
+ |
+} // namespace |
+} // namespace cc |