Implemented BluetoothAdapterWin::IsPresent().

device/bluetooth/bluetooth_adapter_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 <string>
+
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
+#include "base/message_loop.h"
+#include "base/run_loop.h"
+#include "base/stringprintf.h"
+#include "base/time.h"
+#include "content/public/test/test_browser_thread.h"
+#include "device/bluetooth/bluetooth_adapter_win.h"
+#include "device/bluetooth/test/mock_bluetooth_adapter.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace {
+
+const char* kAdapterAddress = "bluetooth adapter address";
+
+}  // namespace
+
+namespace device {
+
+class FakeBluetoothAdapterWin : public BluetoothAdapterWin {
+ public:
+  FakeBluetoothAdapterWin() : BluetoothAdapterWin() {}
+
+  virtual void UpdateAdapterState() {
+    address_ = adapter_address_;
+  }
+
+  void set_adapter_address(const std::string& adapter_address) {

[bryeung, 2012/11/09 17:59:09]

SetAdapterAddressForTest is probably a better name

[youngki, 2012/11/09 19:14:04]

Done.

+    adapter_address_ = adapter_address;
+  }
+
+ private:
+  virtual ~FakeBluetoothAdapterWin() {}
+  std::string adapter_address_;
+  DISALLOW_COPY_AND_ASSIGN(FakeBluetoothAdapterWin);
+};
+
+class BluetoothAdapterWinTest : public testing::Test {
+ public:
+  BluetoothAdapterWinTest()
+      : ui_thread_(content::BrowserThread::UI, &loop_),
+        ALLOW_THIS_IN_INITIALIZER_LIST(weak_ptr_factory_(this)) {
+  }
+
+  virtual void SetUp() {
+    adapter_ = new FakeBluetoothAdapterWin;
+    adapter_->TrackDefaultAdapter();
+  }
+
+  void UpdateAdapterAddress() {

[bryeung, 2012/11/09 17:59:09]

probably better to just call adapter_->SetAdapterAddressForTest(kAdapterAddress)
in the individual test cases.  This methods just obscures what's going on,
especially since it has such a similar name to
BluetoothAdapterWin::UpdateAdapterState.

[youngki, 2012/11/09 19:14:04]

I still need this function to use as a closure for MessageLoop. I renamed it as
SetAdapterAddressForTest. Still not a great name, but hopefully it's more
clear..

+    adapter_->set_adapter_address(kAdapterAddress);
+  }
+
+ protected:
+  FakeBluetoothAdapterWin* adapter_;
+
+  // Main message loop for the test.
+  MessageLoopForUI loop_;
+
+  // Main thread for the test.
+  content::TestBrowserThread ui_thread_;
+
+  // NOTE: This should remain the last member so it'll be destroyed and
+  // invalidate its weak pointers before any other members are destroyed.
+  base::WeakPtrFactory<BluetoothAdapterWinTest> weak_ptr_factory_;
+};
+
+TEST_F(BluetoothAdapterWinTest, Polling) {
+  MessageLoop::current()->PostDelayedTask(
+      FROM_HERE,
+      base::Bind(
+          &BluetoothAdapterWinTest::UpdateAdapterAddress,
+          weak_ptr_factory_.GetWeakPtr()),
+      base::TimeDelta::FromMilliseconds(
+          BluetoothAdapterWin::kPollIntervalMs - 1));
+  EXPECT_STRNE(kAdapterAddress, adapter_->address().c_str());
+  base::RunLoop run_loop;
+
+  MessageLoop::current()->PostDelayedTask(
+      FROM_HERE,
+      run_loop.QuitClosure(),
+      base::TimeDelta::FromMilliseconds(
+          BluetoothAdapterWin::kPollIntervalMs + 1));
+
+  run_loop.Run();
+
+  EXPECT_STREQ(kAdapterAddress, adapter_->address().c_str());
+}
+
+TEST_F(BluetoothAdapterWinTest, IsPresent) {
+  MockBluetoothAdapter::Observer adapter_observer;
+  adapter_->AddObserver(&adapter_observer);
+  EXPECT_FALSE(adapter_->IsPresent());
+  UpdateAdapterAddress();
+  base::RunLoop run_loop;
+  MessageLoop::current()->PostDelayedTask(
+      FROM_HERE,
+      run_loop.QuitClosure(),
+      base::TimeDelta::FromMilliseconds(
+          BluetoothAdapterWin::kPollIntervalMs));
+  run_loop.Run();
+
+  EXPECT_TRUE(adapter_->IsPresent());
+}
+
+}  // namespace device