Implemented BluetoothTaskManagerWin class.

device/bluetooth/bluetooth_task_manager_win_unittest.cc

+// Copyright (c) 2012 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 <deque>
+
+#include "base/bind.h"
+#include "base/memory/ref_counted.h"
+#include "base/test/test_pending_task.h"
+#include "base/test/test_simple_task_runner.h"
+#include "device/bluetooth/bluetooth_task_manager_win.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace {
+
+class BluetoothTaskObserver : public device::BluetoothTaskManagerWin::Observer {
+ public:
+  BluetoothTaskObserver() : num_updates_(0) {
+  }
+
+  virtual ~BluetoothTaskObserver() {
+  }
+
+  virtual void AdapterStateChanged(
+    const device::BluetoothTaskManagerWin::AdapterState& state) {
+    num_updates_++;
+  }
+
+  int num_updates() const {
+    return num_updates_;
+  }
+
+ private:
+   int num_updates_;
+};
+
+}  // namespace
+
+namespace device {
+
+class BluetoothTaskManagerWinTest : public testing::Test {
+ public:
+  BluetoothTaskManagerWinTest()
+      : ui_task_runner_(new base::TestSimpleTaskRunner()),
+        bluetooth_task_runner_(new base::TestSimpleTaskRunner()),
+        task_manager_(new BluetoothTaskManagerWin(ui_task_runner_,
+                                                  bluetooth_task_runner_)),
+        has_bluetooth_stack_(BluetoothTaskManagerWin::HasBluetoothStack()) {
+  }
+
+  virtual void SetUp() {
+    task_manager_->AddObserver(&observer_);
+    task_manager_->Initialize();
+  }
+
+  virtual void TearDown() {
+    task_manager_->RemoveObserver(&observer_);
+  }
+
+  int GetPollingIntervalMs() const {
+    return BluetoothTaskManagerWin::kPollIntervalMs;
+  }
+
+ protected:
+  scoped_refptr<base::TestSimpleTaskRunner> ui_task_runner_;
+  scoped_refptr<base::TestSimpleTaskRunner> bluetooth_task_runner_;
+  scoped_refptr<BluetoothTaskManagerWin> task_manager_;
+  BluetoothTaskObserver observer_;
+  const bool has_bluetooth_stack_;
+};
+
+TEST_F(BluetoothTaskManagerWinTest, StartPolling) {
+  const std::deque<base::TestPendingTask>& pending_tasks =
+      bluetooth_task_runner_->GetPendingTasks();
+  EXPECT_EQ(1, bluetooth_task_runner_->GetPendingTasks().size());
+}
+
+TEST_F(BluetoothTaskManagerWinTest, PollAdapterIfBluetoothStackIsAvailable) {
+  bluetooth_task_runner_->RunPendingTasks();
+  int num_expected_pending_tasks = has_bluetooth_stack_ ? 1 : 0;
+  EXPECT_EQ(num_expected_pending_tasks,
+            bluetooth_task_runner_->GetPendingTasks().size());
+}
+
+TEST_F(BluetoothTaskManagerWinTest, Polling) {
+  if (!has_bluetooth_stack_) {
+    return;
+  }
+
+  int expected_num_updates = 5;
+
+  for (int i = 0; i < expected_num_updates; i++) {
+    bluetooth_task_runner_->RunPendingTasks();
+  }
+
+  EXPECT_EQ(expected_num_updates, ui_task_runner_->GetPendingTasks().size());
+  ui_task_runner_->RunPendingTasks();
+  EXPECT_EQ(expected_num_updates, observer_.num_updates());
+}
+
+}  // namespace device