mus: Forward user activity from window server to detector.

ui/aura/mus/user_activity_forwarder_unittest.cc

Index: ui/aura/mus/user_activity_forwarder_unittest.cc
diff --git a/ui/aura/mus/user_activity_forwarder_unittest.cc b/ui/aura/mus/user_activity_forwarder_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..8130db9d1ccbf3b2355d29c835c5b5617cc2a395
--- /dev/null
+++ b/ui/aura/mus/user_activity_forwarder_unittest.cc
@@ -0,0 +1,85 @@
+// Copyright 2017 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 "ui/aura/mus/user_activity_forwarder.h"
+
+#include <memory>
+#include <vector>
+
+#include "base/macros.h"
+#include "base/memory/ptr_util.h"
+#include "base/time/time.h"
+#include "mojo/public/cpp/bindings/interface_request.h"
+#include "services/ui/common/task_runner_test_base.h"
+#include "services/ui/public/interfaces/user_activity_monitor.mojom.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/base/user_activity/user_activity_detector.h"
+
+namespace {
+
+// Fake implementation of ui::mojom::UserActivityMonitor for testing that just
+// supports tracking and notifying observers.
+class FakeUserActivityMonitor : public ui::mojom::UserActivityMonitor {
+ public:
+  FakeUserActivityMonitor() : binding_(this) {}
+  ~FakeUserActivityMonitor() override {}
+
+  ui::mojom::UserActivityMonitorPtr GetPtr() {
+    return binding_.CreateInterfacePtrAndBind();
+  }
+
+  // Notifies all observers about user activity.
+  // ui::TaskRunnerTestBase::RunUntilIdle() must be called after this method in
+  // order for observers to receive notifications.
+  void NotifyUserActivityObservers() {
+    for (auto& observer : activity_observers_)
+      observer->OnUserActivity();
+  }
+
+  // ui::mojom::UserActivityMonitor:
+  void AddUserActivityObserver(
+      uint32_t delay_between_notify_secs,
+      ui::mojom::UserActivityObserverPtr observer) override {
+    activity_observers_.push_back(std::move(observer));
+  }
+  void AddUserIdleObserver(uint32_t idleness_in_minutes,
+                           ui::mojom::UserIdleObserverPtr observer) override {
+    NOTREACHED() << "Unexpected AddUserIdleObserver call";
+  }
+
+ private:
+  mojo::Binding<ui::mojom::UserActivityMonitor> binding_;
+  std::vector<ui::mojom::UserActivityObserverPtr> activity_observers_;
+
+  DISALLOW_COPY_AND_ASSIGN(FakeUserActivityMonitor);
+};
+
+}  // namespace
+
+namespace aura {
+
+using UserActivityForwarderTest = ui::TaskRunnerTestBase;
+
+TEST_F(UserActivityForwarderTest, ForwardActivityToDetector) {
+  FakeUserActivityMonitor monitor;
+  ui::UserActivityDetector detector;
+  UserActivityForwarder forwarder(monitor.GetPtr(), &detector);
+
+  // Run pending tasks so |monitor| receives |forwarder|'s registration.
+  RunUntilIdle();
+
+  base::TimeTicks now = base::TimeTicks::FromInternalValue(1000);
+  detector.set_now_for_test(now);
+  monitor.NotifyUserActivityObservers();
+  RunUntilIdle();
+  EXPECT_EQ(now, detector.last_activity_time());
+
+  now += base::TimeDelta::FromSeconds(10);
+  detector.set_now_for_test(now);
+  monitor.NotifyUserActivityObservers();
+  RunUntilIdle();
+  EXPECT_EQ(now, detector.last_activity_time());
+}
+
+}  // namespace aura