devtools_video_consumer_unittest.cc

// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include <utility>
#include <vector>

#include "base/functional/bind.h"
#include "base/memory/read_only_shared_memory_region.h"
#include "base/test/task_environment.h"
#include "base/time/time.h"
#include "components/viz/common/surfaces/region_capture_bounds.h"
#include "content/browser/devtools/devtools_video_consumer.h"
#include "content/public/test/test_utils.h"
#include "media/base/limits.h"
#include "media/capture/mojom/video_capture_buffer.mojom.h"
#include "media/capture/mojom/video_capture_types.mojom.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "testing/gmock/include/gmock/gmock.h"

_;

namespace content {
namespace {

// Capture parameters.
constexpr gfx::Size kResolution = …;  // Arbitrarily chosen.
constexpr media::VideoPixelFormat kFormat = …;

// Video buffer parameters.
constexpr bool kNotPremapped = …;

// A non-zero FrameSinkId to prevent validation errors when
// DevToolsVideoConsumer::ChangeTarget(viz::FrameSinkId) is called
// (which eventually fails in FrameSinkVideoCapturerStubDispatch::Accept).
constexpr viz::FrameSinkId kInitialFrameSinkId = …;

}  // namespace

// Mock for the FrameSinkVideoCapturer running in the VIZ process.
class MockFrameSinkVideoCapturer : public viz::mojom::FrameSinkVideoCapturer { … };

// Represents the FrameSinkVideoConsumerFrameCallbacks instance in the VIZ
// process.
class MockFrameSinkVideoConsumerFrameCallbacks
    : public viz::mojom::FrameSinkVideoConsumerFrameCallbacks { … };

// Mock for the classes like TracingHandler that receive frames from
// DevToolsVideoConsumer via the OnFrameCapturedCallback.
class MockDevToolsVideoFrameReceiver { … };

class DevToolsVideoConsumerTest : public testing::Test { … };

// Tests that the OnFrameFromVideoConsumer callbacks is called when
// OnFrameCaptured is passed a valid buffer with valid mapping.
TEST_F(DevToolsVideoConsumerTest, CallbacksAreCalledWhenBufferValid) { … }

// Tests that the OnFrameFromVideoConsumer callback is not called when
// OnFrameCaptured is passed a buffer with less-than-expected size.
TEST_F(DevToolsVideoConsumerTest, CallbackIsNotCalledWhenBufferIsTooSmall) { … }

// Tests that starting capture calls |capturer_| functions, and capture can be
// restarted. This test is important as it ensures that when restarting capture,
// a FrameSinkVideoCapturerPtrInfo is bound to |capturer_| and it verifies that
// resources used in the previous StartCapture aren't reused.
TEST_F(DevToolsVideoConsumerTest, StartCaptureCallsSetFunctions) { … }

// Tests that calling 'Set' functions in DevToolsVideoConsumer before
// |capturer_| is initialized results in the passed values being cached.
// When capture is later started (and |capturer_| initialized), these cached
// values should be used and sent to the |capturer_|.
TEST_F(DevToolsVideoConsumerTest, CapturerIsPassedCachedValues) { … }

// Tests that DevToolsVideoConsumer::IsValidMinAndMaxFrameSize adheres to the
// limits set by media::limits::kMaxDimension
TEST_F(DevToolsVideoConsumerTest, IsValidMinAndMaxFrameSize) { … }

}  // namespace content
chromium/content/browser/devtools/devtools_video_consumer_unittest.cc
