Add SurfaceDisplayOutputSurface unittests

cc/surfaces/surface_display_output_surface_unittest.cc

Index: cc/surfaces/surface_display_output_surface_unittest.cc
diff --git a/cc/surfaces/surface_display_output_surface_unittest.cc b/cc/surfaces/surface_display_output_surface_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..ed801e91474a1d03ff9f7962d233e170ed909530
--- /dev/null
+++ b/cc/surfaces/surface_display_output_surface_unittest.cc
@@ -0,0 +1,147 @@
+// 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/surfaces/surface_display_output_surface.h"
+
+#include "cc/surfaces/onscreen_display_client.h"
+#include "cc/surfaces/surface_id_allocator.h"
+#include "cc/surfaces/surface_manager.h"
+#include "cc/test/fake_output_surface.h"
+#include "cc/test/fake_output_surface_client.h"
+#include "cc/test/ordered_simple_task_runner.h"
+#include "cc/test/test_context_provider.h"
+#include "cc/test/test_gpu_memory_buffer_manager.h"
+#include "cc/test/test_shared_bitmap_manager.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace cc {
+namespace {
+
+class FakeOnscreenDisplayClient : public OnscreenDisplayClient {
+ public:
+  FakeOnscreenDisplayClient(
+      SurfaceManager* manager,
+      SharedBitmapManager* bitmap_manager,
+      gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
+      const RendererSettings& settings,
+      scoped_refptr<base::SingleThreadTaskRunner> task_runner)
+      : OnscreenDisplayClient(FakeOutputSurface::Create3d(),
+                              manager,
+                              bitmap_manager,
+                              gpu_memory_buffer_manager,
+                              settings,
+                              task_runner) {
+    // Ownership is passed to another object later, store a pointer
+    // to it now for future reference.
+    fake_output_surface_ =
+        static_cast<FakeOutputSurface*>(output_surface_.get());
+  }
+
+  FakeOutputSurface* output_surface() { return fake_output_surface_; }
+
+ protected:
+  FakeOutputSurface* fake_output_surface_;
+};
+
+class SurfaceDisplayOutputSurfaceTest : public testing::Test {
+ public:
+  SurfaceDisplayOutputSurfaceTest()
+      : task_runner_(new OrderedSimpleTaskRunner()),
+        allocator_(0),
+        display_size_(1920, 1080),
+        display_rect_(display_size_),
+        display_client_(&surface_manager_,
+                        &bitmap_manager_,
+                        &gpu_memory_buffer_manager_,
+                        renderer_settings_,
+                        task_runner_),
+        context_provider_(TestContextProvider::Create()),
+        surface_display_output_surface_(&surface_manager_,
+                                        &allocator_,
+                                        context_provider_) {
+    output_surface_ = display_client_.output_surface();
+    display_client_.set_surface_output_surface(
+        &surface_display_output_surface_);
+    surface_display_output_surface_.set_display_client(&display_client_);
+    surface_display_output_surface_.BindToClient(
+        &surface_display_output_surface_client_);
+    display_client_.display()->Resize(display_size_);
+
+    EXPECT_FALSE(surface_display_output_surface_client_
+                     .did_lose_output_surface_called());
+  }
+
+  ~SurfaceDisplayOutputSurfaceTest() override {}
+
+  void SwapBuffersWithDamage(const gfx::Rect& damage_rect_) {
+    scoped_ptr<RenderPass> render_pass(RenderPass::Create());
+    render_pass->SetNew(RenderPassId(1, 1), display_rect_, damage_rect_,
+                        gfx::Transform());
+
+    scoped_ptr<DelegatedFrameData> frame_data(new DelegatedFrameData);
+    frame_data->render_pass_list.push_back(render_pass.Pass());
+
+    CompositorFrame frame;
+    frame.delegated_frame_data = frame_data.Pass();
+
+    surface_display_output_surface_.SwapBuffers(&frame);
+  }
+
+  void SetUp() override {
+    // Draw the first frame to start in an "unlocked" state.
+    SwapBuffersWithDamage(display_rect_);
+
+    EXPECT_EQ(0u, output_surface_->num_sent_frames());
+    task_runner_->RunUntilIdle();
+    EXPECT_EQ(1u, output_surface_->num_sent_frames());
+  }
+
+ protected:
+  scoped_refptr<OrderedSimpleTaskRunner> task_runner_;
+  SurfaceIdAllocator allocator_;
+
+  const gfx::Size display_size_;
+  const gfx::Rect display_rect_;
+  FakeOutputSurface* output_surface_;
+  SurfaceManager surface_manager_;
+  TestSharedBitmapManager bitmap_manager_;
+  TestGpuMemoryBufferManager gpu_memory_buffer_manager_;
+  RendererSettings renderer_settings_;
+  FakeOnscreenDisplayClient display_client_;
+
+  scoped_refptr<TestContextProvider> context_provider_;
+
+  FakeOutputSurfaceClient surface_display_output_surface_client_;
+  SurfaceDisplayOutputSurface surface_display_output_surface_;
+};
+
+TEST_F(SurfaceDisplayOutputSurfaceTest, DamageTriggersSwapBuffers) {
+  SwapBuffersWithDamage(display_rect_);
+  EXPECT_EQ(1u, output_surface_->num_sent_frames());
+  task_runner_->RunUntilIdle();
+  EXPECT_EQ(2u, output_surface_->num_sent_frames());
+}
+
+TEST_F(SurfaceDisplayOutputSurfaceTest, NoDamageDoesNotTriggerSwapBuffers) {
+  SwapBuffersWithDamage(gfx::Rect());
+  EXPECT_EQ(1u, output_surface_->num_sent_frames());
+  task_runner_->RunUntilIdle();
+  EXPECT_EQ(1u, output_surface_->num_sent_frames());
+}
+
+TEST_F(SurfaceDisplayOutputSurfaceTest,
+       LockingResourcesDoesNotIndirectlyCauseDamage) {
+  surface_display_output_surface_.ForceReclaimResources();
+  EXPECT_EQ(1u, output_surface_->num_sent_frames());
+  task_runner_->RunPendingTasks();
+  EXPECT_EQ(1u, output_surface_->num_sent_frames());
+
+  SwapBuffersWithDamage(gfx::Rect());
+  EXPECT_EQ(1u, output_surface_->num_sent_frames());
+  task_runner_->RunUntilIdle();
+  EXPECT_EQ(1u, output_surface_->num_sent_frames());
+}
+
+}  // namespace
+}  // namespace cc