[Mojo Video Capture] Stop service when last client disconnects.

services/video_capture/test/device_factory_provider_test.h

+// Copyright 2016 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.
+
+#ifndef SERVICES_VIDEO_CAPTURE_VIDEO_CAPTURE_TEST_DEVICE_FACTORY_PROVIDER_TEST_H_
+#define SERVICES_VIDEO_CAPTURE_VIDEO_CAPTURE_TEST_DEVICE_FACTORY_PROVIDER_TEST_H_
+
+#include "base/run_loop.h"
+#include "base/test/mock_callback.h"
+#include "mojo/public/cpp/bindings/binding.h"
+#include "services/service_manager/public/cpp/service_test.h"
+#include "services/service_manager/public/interfaces/service_manager.mojom.h"
+#include "services/video_capture/public/interfaces/device_factory_provider.mojom.h"
+#include "testing/gmock/include/gmock/gmock.h"
+
+namespace video_capture {
+
+class ServiceManagerListenerImpl
+    : public service_manager::mojom::ServiceManagerListener {
+ public:
+  ServiceManagerListenerImpl(
+      service_manager::mojom::ServiceManagerListenerRequest request,
+      base::RunLoop* loop);
+  ~ServiceManagerListenerImpl() override;
+
+  // mojom::ServiceManagerListener implementation.
+  void OnInit(std::vector<service_manager::mojom::RunningServiceInfoPtr>
+                  instances) override {
+    loop_->Quit();
+  }
+  void OnServiceCreated(
+      service_manager::mojom::RunningServiceInfoPtr instance) override {}
+  void OnServiceStarted(const service_manager::Identity& identity,
+                        uint32_t pid) override {}
+  void OnServiceFailedToStart(
+      const service_manager::Identity& identity) override {}
+
+  MOCK_METHOD1(OnServiceStopped,
+               void(const service_manager::Identity& identity));
+
+ private:
+  mojo::Binding<service_manager::mojom::ServiceManagerListener> binding_;
+  base::RunLoop* loop_;
+};
+
+// Basic test fixture that sets up a connection to the fake device factory.
+class DeviceFactoryProviderTest : public service_manager::test::ServiceTest {
+ public:
+  DeviceFactoryProviderTest();
+  ~DeviceFactoryProviderTest() override;
+
+  void SetUp() override;
+
+ protected:
+  mojom::DeviceFactoryProviderPtr factory_provider_;
+  mojom::DeviceFactoryPtr factory_;
+  base::MockCallback<mojom::DeviceFactory::GetDeviceInfosCallback>
+      device_info_receiver_;
+  std::unique_ptr<ServiceManagerListenerImpl> service_state_observer_;
+};
+
+}  // namespace video_capture
+
+#endif  // SERVICES_VIDEO_CAPTURE_VIDEO_CAPTURE_TEST_DEVICE_FACTORY_PROVIDER_TEST_H_