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// 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 "base/macros.h"
#include "base/run_loop.h"
#include "base/thread_task_runner_handle.h"
#include "cc/output/begin_frame_args.h"
#include "cc/test/begin_frame_args_test.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/compositor/compositor.h"
#include "ui/compositor/layer.h"
#include "ui/compositor/test/context_factories_for_test.h"
#include "ui/compositor/test/draw_waiter_for_test.h"
using testing::Mock;
using testing::_;
namespace ui {
namespace {
ACTION_P2(RemoveObserver, compositor, observer) {
compositor->RemoveBeginFrameObserver(observer);
}
class MockCompositorBeginFrameObserver : public CompositorBeginFrameObserver {
public:
MOCK_METHOD1(OnSendBeginFrame, void(const cc::BeginFrameArgs&));
};
// Test fixture for tests that require a ui::Compositor with a real task
// runner.
class CompositorTest : public testing::Test {
public:
CompositorTest() {}
~CompositorTest() override {}
void SetUp() override {
task_runner_ = base::ThreadTaskRunnerHandle::Get();
ui::ContextFactory* context_factory =
ui::InitializeContextFactoryForTests(false);
compositor_.reset(new ui::Compositor(context_factory, task_runner_));
compositor_->SetAcceleratedWidget(gfx::kNullAcceleratedWidget);
}
void TearDown() override {
compositor_.reset();
ui::TerminateContextFactoryForTests();
}
protected:
base::SingleThreadTaskRunner* task_runner() { return task_runner_.get(); }
ui::Compositor* compositor() { return compositor_.get(); }
private:
scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
scoped_ptr<ui::Compositor> compositor_;
DISALLOW_COPY_AND_ASSIGN(CompositorTest);
};
} // namespace
TEST_F(CompositorTest, LocksTimeOut) {
scoped_refptr<ui::CompositorLock> lock;
{
base::RunLoop run_loop;
// Ensure that the lock times out by default.
lock = compositor()->GetCompositorLock();
EXPECT_TRUE(compositor()->IsLocked());
task_runner()->PostDelayedTask(
FROM_HERE, run_loop.QuitClosure(),
base::TimeDelta::FromMilliseconds(kCompositorLockTimeoutMs));
run_loop.Run();
EXPECT_FALSE(compositor()->IsLocked());
}
{
base::RunLoop run_loop;
// Ensure that the lock does not time out when set.
compositor()->SetLocksWillTimeOut(false);
lock = compositor()->GetCompositorLock();
EXPECT_TRUE(compositor()->IsLocked());
task_runner()->PostDelayedTask(
FROM_HERE, run_loop.QuitClosure(),
base::TimeDelta::FromMilliseconds(kCompositorLockTimeoutMs));
run_loop.Run();
EXPECT_TRUE(compositor()->IsLocked());
}
}
TEST_F(CompositorTest, AddAndRemoveBeginFrameObserver) {
cc::BeginFrameArgs args =
cc::CreateBeginFrameArgsForTesting(BEGINFRAME_FROM_HERE,
base::TimeTicks::FromInternalValue(33));
MockCompositorBeginFrameObserver test_observer;
MockCompositorBeginFrameObserver test_observer2;
// Add a single observer.
compositor()->AddBeginFrameObserver(&test_observer);
Mock::VerifyAndClearExpectations(&test_observer);
// When |missed_begin_frame_args_| is sent, its type is set to MISSED.
cc::BeginFrameArgs expected_args(args);
cc::BeginFrameArgs expected_missed_args(args);
expected_missed_args.type = cc::BeginFrameArgs::MISSED;
// Simulate to trigger new BeginFrame by using |args|.
EXPECT_CALL(test_observer, OnSendBeginFrame(expected_args));
compositor()->SendBeginFramesToChildren(args);
Mock::VerifyAndClearExpectations(&test_observer);
// When new observer is added, Compositor immediately calls OnSendBeginFrame
// with |missed_begin_frame_args_|.
EXPECT_CALL(test_observer2, OnSendBeginFrame(expected_missed_args));
compositor()->AddBeginFrameObserver(&test_observer2);
Mock::VerifyAndClearExpectations(&test_observer);
Mock::VerifyAndClearExpectations(&test_observer2);
// When |test_observer2| is removed and added again, it will be called again.
EXPECT_CALL(test_observer2, OnSendBeginFrame(expected_missed_args));
compositor()->RemoveBeginFrameObserver(&test_observer2);
compositor()->AddBeginFrameObserver(&test_observer2);
Mock::VerifyAndClearExpectations(&test_observer2);
// When all observer is removed, |missed_begin_frame_args_| is invalidated.
// So, it is not used for newly added observer.
EXPECT_CALL(test_observer2, OnSendBeginFrame(_)).Times(0);
compositor()->RemoveBeginFrameObserver(&test_observer);
compositor()->RemoveBeginFrameObserver(&test_observer2);
compositor()->SendBeginFramesToChildren(args);
compositor()->AddBeginFrameObserver(&test_observer2);
Mock::VerifyAndClearExpectations(&test_observer2);
compositor()->RemoveBeginFrameObserver(&test_observer2);
}
TEST_F(CompositorTest, RemoveBeginFrameObserverWhileSendingBeginFrame) {
cc::BeginFrameArgs args = cc::CreateBeginFrameArgsForTesting(
BEGINFRAME_FROM_HERE, base::TimeTicks::FromInternalValue(33));
cc::BeginFrameArgs expected_args(args);
cc::BeginFrameArgs expected_missed_args(args);
expected_missed_args.type = cc::BeginFrameArgs::MISSED;
// Add both observers, and simulate removal of |test_observer2| during
// BeginFrame dispatch (implicitly triggered when the observer is added).
MockCompositorBeginFrameObserver test_observer;
MockCompositorBeginFrameObserver test_observer2;
EXPECT_CALL(test_observer, OnSendBeginFrame(expected_args));
EXPECT_CALL(test_observer2, OnSendBeginFrame(expected_missed_args))
.WillOnce(RemoveObserver(compositor(), &test_observer2));
// When a new observer is added, Compositor immediately calls OnSendBeginFrame
// with |missed_begin_frame_args_|.
compositor()->AddBeginFrameObserver(&test_observer);
compositor()->SendBeginFramesToChildren(args);
compositor()->AddBeginFrameObserver(&test_observer2);
Mock::VerifyAndClearExpectations(&test_observer);
Mock::VerifyAndClearExpectations(&test_observer2);
// |test_observer2| was removed during the previous implicit BeginFrame
// dispatch, and should not get the new frame.
expected_args.type = cc::BeginFrameArgs::NORMAL;
EXPECT_CALL(test_observer, OnSendBeginFrame(expected_args));
EXPECT_CALL(test_observer2, OnSendBeginFrame(_)).Times(0);
compositor()->SendBeginFramesToChildren(args);
Mock::VerifyAndClearExpectations(&test_observer);
Mock::VerifyAndClearExpectations(&test_observer2);
// Now remove |test_observer| during explicit BeginFrame dispatch.
EXPECT_CALL(test_observer, OnSendBeginFrame(expected_args))
.WillOnce(RemoveObserver(compositor(), &test_observer));
EXPECT_CALL(test_observer2, OnSendBeginFrame(_)).Times(0);
compositor()->SendBeginFramesToChildren(args);
Mock::VerifyAndClearExpectations(&test_observer);
Mock::VerifyAndClearExpectations(&test_observer2);
// No observers should get the new frame.
EXPECT_CALL(test_observer, OnSendBeginFrame(_)).Times(0);
EXPECT_CALL(test_observer2, OnSendBeginFrame(_)).Times(0);
compositor()->SendBeginFramesToChildren(args);
Mock::VerifyAndClearExpectations(&test_observer);
Mock::VerifyAndClearExpectations(&test_observer2);
// Adding a new observer should not trigger a missed frame, as the
// previous frame had no observers.
EXPECT_CALL(test_observer, OnSendBeginFrame(_)).Times(0);
compositor()->AddBeginFrameObserver(&test_observer);
compositor()->RemoveBeginFrameObserver(&test_observer);
Mock::VerifyAndClearExpectations(&test_observer);
}
TEST_F(CompositorTest, ReleaseWidgetWithOutputSurfaceNeverCreated) {
compositor()->SetVisible(false);
EXPECT_EQ(gfx::kNullAcceleratedWidget,
compositor()->ReleaseAcceleratedWidget());
compositor()->SetAcceleratedWidget(gfx::kNullAcceleratedWidget);
compositor()->SetVisible(true);
}
TEST_F(CompositorTest, CreateAndReleaseOutputSurface) {
scoped_ptr<Layer> root_layer(new Layer(ui::LAYER_SOLID_COLOR));
root_layer->SetBounds(gfx::Rect(10, 10));
compositor()->SetRootLayer(root_layer.get());
compositor()->SetScaleAndSize(1.0f, gfx::Size(10, 10));
DCHECK(compositor()->IsVisible());
compositor()->ScheduleDraw();
DrawWaiterForTest::WaitForCompositingEnded(compositor());
compositor()->SetVisible(false);
EXPECT_EQ(gfx::kNullAcceleratedWidget,
compositor()->ReleaseAcceleratedWidget());
compositor()->SetAcceleratedWidget(gfx::kNullAcceleratedWidget);
compositor()->SetVisible(true);
compositor()->ScheduleDraw();
DrawWaiterForTest::WaitForCompositingEnded(compositor());
compositor()->SetRootLayer(nullptr);
}
} // namespace ui
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