Unit test for freeing tiles when going invisible.

cc/trees/layer_tree_host_impl_unittest.cc

 // Copyright 2011 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/trees/layer_tree_host_impl.h"
 
 #include <cmath>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 16 matching lines @@
 #include "cc/output/begin_frame_args.h"
 #include "cc/output/compositor_frame_ack.h"
 #include "cc/output/compositor_frame_metadata.h"
 #include "cc/output/gl_renderer.h"
 #include "cc/quads/render_pass_draw_quad.h"
 #include "cc/quads/solid_color_draw_quad.h"
 #include "cc/quads/texture_draw_quad.h"
 #include "cc/quads/tile_draw_quad.h"
 #include "cc/resources/layer_tiling_data.h"
 #include "cc/test/animation_test_common.h"
+#include "cc/test/fake_layer_tree_host_impl.h"
 #include "cc/test/fake_output_surface.h"
 #include "cc/test/fake_output_surface_client.h"
 #include "cc/test/fake_proxy.h"
 #include "cc/test/fake_rendering_stats_instrumentation.h"
 #include "cc/test/fake_video_frame_provider.h"
 #include "cc/test/geometry_test_utils.h"
 #include "cc/test/layer_test_common.h"
 #include "cc/test/render_pass_test_common.h"
 #include "cc/trees/layer_tree_impl.h"
 #include "cc/trees/single_thread_proxy.h"
@@ skipping 6374 matching lines @@
 
   host_impl_->SetVisible(false);
   EXPECT_EQ(policy1.bytes_limit_when_not_visible, current_limit_bytes_);
   EXPECT_EQ(not_visible_cutoff_value, current_priority_cutoff_value_);
 
   host_impl_->SetVisible(true);
   EXPECT_EQ(policy1.bytes_limit_when_visible, current_limit_bytes_);
   EXPECT_EQ(visible_cutoff_value, current_priority_cutoff_value_);
 }
 
+class LayerTreeHostImplTestManageTiles : public LayerTreeHostImplTest {
+ public:
+  virtual void SetUp() OVERRIDE {
+    LayerTreeSettings settings;
+    settings.impl_side_painting = true;
+
+    fake_host_impl_ = new FakeLayerTreeHostImpl(settings, &proxy_);
+    host_impl_.reset(fake_host_impl_);
+    host_impl_->InitializeRenderer(CreateOutputSurface());
+    host_impl_->SetViewportSize(gfx::Size(10, 10));
+  }
+
+  FakeLayerTreeHostImpl* fake_host_impl_;
+};
+
+TEST_F(LayerTreeHostImplTestManageTiles, ManageTilesWhenInvisible) {
+  fake_host_impl_->SetNeedsManageTiles();
+  EXPECT_TRUE(fake_host_impl_->manage_tiles_needed());
+  fake_host_impl_->SetVisible(false);
+  EXPECT_FALSE(fake_host_impl_->manage_tiles_needed());
+}
+
 TEST_F(LayerTreeHostImplTest, UIResourceManagement) {
   scoped_ptr<TestWebGraphicsContext3D> context =
       TestWebGraphicsContext3D::Create();
   TestWebGraphicsContext3D* context3d = context.get();
   scoped_ptr<OutputSurface> output_surface = CreateFakeOutputSurface();
   host_impl_->InitializeRenderer(output_surface.Pass());
 
   EXPECT_EQ(0u, context3d->NumTextures());
 
   UIResourceId ui_resource_id = 1;
@@ skipping 27 matching lines @@
   EXPECT_EQ(0u, host_impl_->ResourceIdForUIResource(ui_resource_id));
   EXPECT_EQ(0u, context3d->NumTextures());
 
   // Should not change state for multiple deletion on one UIResourceId
   host_impl_->DeleteUIResource(ui_resource_id);
   EXPECT_EQ(0u, context3d->NumTextures());
 }
 
 }  // namespace
 }  // namespace cc