components/proximity_auth/bluetooth_connection_finder_unittest.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "components/proximity_auth/bluetooth_connection_finder.h"
   6
   7 #include "base/bind.h"
   8 #include "base/memory/ref_counted.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/message_loop/message_loop.h"
  11 #include "base/run_loop.h"
  12 #include "base/time/time.h"
  13 #include "components/proximity_auth/remote_device.h"
  14 #include "components/proximity_auth/wire_message.h"
  15 #include "device/bluetooth/bluetooth_adapter_factory.h"
  16 #include "device/bluetooth/bluetooth_uuid.h"
  17 #include "device/bluetooth/test/mock_bluetooth_adapter.h"
  18 #include "testing/gmock/include/gmock/gmock.h"
  19 #include "testing/gtest/include/gtest/gtest.h"
  20
  21 using testing::_;
  22 using testing::NiceMock;
  23 using testing::Return;
  24 using testing::StrictMock;
  25
  26 namespace proximity_auth {
  27 namespace {
  28
  29 const char kDeviceName[] = "Device name";
  30 const char kBluetoothAddress[] = "11:22:33:44:55:66";
  31 const RemoteDevice kRemoteDevice = {kDeviceName, kBluetoothAddress};
  32
  33 const char kUuid[] = "DEADBEEF-CAFE-FEED-FOOD-D15EA5EBEEF";
  34
  35 class MockConnection : public Connection {
  36  public:
  37   MockConnection() : Connection(kRemoteDevice) {}
  38   ~MockConnection() override {}
  39
  40   MOCK_METHOD0(Connect, void());
  41
  42   using Connection::SetStatus;
  43
  44  private:
  45   void Disconnect() override {}
  46   void SendMessageImpl(scoped_ptr<WireMessage> message) override {}
  47
  48   DISALLOW_COPY_AND_ASSIGN(MockConnection);
  49 };
  50
  51 class MockBluetoothConnectionFinder : public BluetoothConnectionFinder {
  52  public:
  53   MockBluetoothConnectionFinder()
  54       : BluetoothConnectionFinder(kRemoteDevice,
  55                                   device::BluetoothUUID(kUuid),
  56                                   base::TimeDelta()) {}
  57   ~MockBluetoothConnectionFinder() override {}
  58
  59   MOCK_METHOD0(CreateConnectionProxy, Connection*());
  60
  61   // Creates a mock connection and sets an expectation that the mock connection
  62   // finder's CreateConnection() method will be called and will return the
  63   // created connection. Returns a reference to the created connection.
  64   // NOTE: The returned connection's lifetime is managed by the connection
  65   // finder.
  66   MockConnection* ExpectCreateConnection() {
  67     scoped_ptr<MockConnection> connection(new NiceMock<MockConnection>());
  68     MockConnection* connection_alias = connection.get();
  69     EXPECT_CALL(*this, CreateConnectionProxy())
  70         .WillOnce(Return(connection.release()));
  71     return connection_alias;
  72   }
  73
  74   using BluetoothConnectionFinder::AdapterPresentChanged;
  75   using BluetoothConnectionFinder::AdapterPoweredChanged;
  76
  77  protected:
  78   scoped_ptr<Connection> CreateConnection() override {
  79     return make_scoped_ptr(CreateConnectionProxy());
  80   }
  81
  82  private:
  83   DISALLOW_COPY_AND_ASSIGN(MockBluetoothConnectionFinder);
  84 };
  85
  86 }  // namespace
  87
  88 class ProximityAuthBluetoothConnectionFinderTest : public testing::Test {
  89  protected:
  90   ProximityAuthBluetoothConnectionFinderTest()
  91       : adapter_(new NiceMock<device::MockBluetoothAdapter>),
  92         connection_callback_(base::Bind(
  93             &ProximityAuthBluetoothConnectionFinderTest::OnConnectionFound,
  94             base::Unretained(this))) {
  95     device::BluetoothAdapterFactory::SetAdapterForTesting(adapter_);
  96
  97     // By default, configure the environment to allow polling. Individual tests
  98     // can override this as needed.
  99     ON_CALL(*adapter_, IsPresent()).WillByDefault(Return(true));
 100     ON_CALL(*adapter_, IsPowered()).WillByDefault(Return(true));
 101   }
 102
 103   MOCK_METHOD1(OnConnectionFoundProxy, void(Connection* connection));
 104   void OnConnectionFound(scoped_ptr<Connection> connection) {
 105     OnConnectionFoundProxy(connection.get());
 106     last_found_connection_ = connection.Pass();
 107   }
 108
 109   scoped_refptr<device::MockBluetoothAdapter> adapter_;
 110   ConnectionFinder::ConnectionCallback connection_callback_;
 111
 112  private:
 113   // Save a pointer to the last found connection, to extend its lifetime.
 114   scoped_ptr<Connection> last_found_connection_;
 115
 116   base::MessageLoop message_loop_;
 117 };
 118
 119 TEST_F(ProximityAuthBluetoothConnectionFinderTest,
 120        ConstructAndDestroyDoesntCrash) {
 121   // Destroying a BluetoothConnectionFinder for which Find() has not been called
 122   // should not crash.
 123   BluetoothConnectionFinder connection_finder(
 124       kRemoteDevice,
 125       device::BluetoothUUID(kUuid),
 126       base::TimeDelta::FromMilliseconds(1));
 127 }
 128
 129 TEST_F(ProximityAuthBluetoothConnectionFinderTest, Find_NoBluetoothAdapter) {
 130   // Some platforms do not support Bluetooth. This test is only meaningful on
 131   // those platforms.
 132   adapter_ = NULL;
 133   if (device::BluetoothAdapterFactory::IsBluetoothAdapterAvailable())
 134     return;
 135
 136   // The StrictMock will verify that no connection is created.
 137   StrictMock<MockBluetoothConnectionFinder> connection_finder;
 138   connection_finder.Find(connection_callback_);
 139 }
 140
 141 TEST_F(ProximityAuthBluetoothConnectionFinderTest,
 142        Find_BluetoothAdapterNotPresent) {
 143   // The StrictMock will verify that no connection is created.
 144   StrictMock<MockBluetoothConnectionFinder> connection_finder;
 145   ON_CALL(*adapter_, IsPresent()).WillByDefault(Return(false));
 146   connection_finder.Find(connection_callback_);
 147 }
 148
 149 TEST_F(ProximityAuthBluetoothConnectionFinderTest,
 150        Find_BluetoothAdapterNotPowered) {
 151   // The StrictMock will verify that no connection is created.
 152   StrictMock<MockBluetoothConnectionFinder> connection_finder;
 153   ON_CALL(*adapter_, IsPowered()).WillByDefault(Return(false));
 154   connection_finder.Find(connection_callback_);
 155 }
 156
 157 TEST_F(ProximityAuthBluetoothConnectionFinderTest, Find_ConnectionSucceeds) {
 158   StrictMock<MockBluetoothConnectionFinder> connection_finder;
 159
 160   MockConnection* connection = connection_finder.ExpectCreateConnection();
 161   connection_finder.Find(connection_callback_);
 162
 163   connection->SetStatus(Connection::IN_PROGRESS);
 164
 165   EXPECT_CALL(*this, OnConnectionFoundProxy(_));
 166   connection->SetStatus(Connection::CONNECTED);
 167 }
 168
 169 TEST_F(ProximityAuthBluetoothConnectionFinderTest,
 170        Find_ConnectionSucceeds_UnregistersAsObserver) {
 171   StrictMock<MockBluetoothConnectionFinder> connection_finder;
 172
 173   MockConnection* connection = connection_finder.ExpectCreateConnection();
 174   connection_finder.Find(connection_callback_);
 175
 176   connection->SetStatus(Connection::IN_PROGRESS);
 177
 178   EXPECT_CALL(*this, OnConnectionFoundProxy(_));
 179   EXPECT_CALL(*adapter_, RemoveObserver(&connection_finder));
 180   connection->SetStatus(Connection::CONNECTED);
 181
 182   // If for some reason the connection sends more status updates, they should be
 183   // ignored.
 184   EXPECT_CALL(*this, OnConnectionFoundProxy(_)).Times(0);
 185   connection->SetStatus(Connection::IN_PROGRESS);
 186   connection->SetStatus(Connection::CONNECTED);
 187 }
 188
 189 TEST_F(ProximityAuthBluetoothConnectionFinderTest,
 190        Find_ConnectionFails_PostsTaskToPollAgain) {
 191   StrictMock<MockBluetoothConnectionFinder> connection_finder;
 192
 193   MockConnection* connection = connection_finder.ExpectCreateConnection();
 194   connection_finder.Find(connection_callback_);
 195
 196   // Simulate a connection that fails to connect.
 197   connection->SetStatus(Connection::IN_PROGRESS);
 198   connection->SetStatus(Connection::DISCONNECTED);
 199
 200   // A task should have been posted to poll again.
 201   base::RunLoop run_loop;
 202   connection_finder.ExpectCreateConnection();
 203   run_loop.RunUntilIdle();
 204 }
 205
 206 TEST_F(ProximityAuthBluetoothConnectionFinderTest, Find_PollsOnAdapterPresent) {
 207   StrictMock<MockBluetoothConnectionFinder> connection_finder;
 208
 209   ON_CALL(*adapter_, IsPresent()).WillByDefault(Return(false));
 210   EXPECT_CALL(connection_finder, CreateConnectionProxy()).Times(0);
 211   connection_finder.Find(connection_callback_);
 212
 213   ON_CALL(*adapter_, IsPresent()).WillByDefault(Return(true));
 214   connection_finder.ExpectCreateConnection();
 215   connection_finder.AdapterPresentChanged(adapter_.get(), true);
 216 }
 217
 218 TEST_F(ProximityAuthBluetoothConnectionFinderTest, Find_PollsOnAdapterPowered) {
 219   StrictMock<MockBluetoothConnectionFinder> connection_finder;
 220
 221   ON_CALL(*adapter_, IsPowered()).WillByDefault(Return(false));
 222   EXPECT_CALL(connection_finder, CreateConnectionProxy()).Times(0);
 223   connection_finder.Find(connection_callback_);
 224
 225   ON_CALL(*adapter_, IsPowered()).WillByDefault(Return(true));
 226   connection_finder.ExpectCreateConnection();
 227   connection_finder.AdapterPoweredChanged(adapter_.get(), true);
 228 }
 229
 230 TEST_F(ProximityAuthBluetoothConnectionFinderTest,
 231        Find_DoesNotPollIfConnectionPending) {
 232   StrictMock<MockBluetoothConnectionFinder> connection_finder;
 233
 234   MockConnection* connection = connection_finder.ExpectCreateConnection();
 235   connection_finder.Find(connection_callback_);
 236
 237   connection->SetStatus(Connection::IN_PROGRESS);
 238
 239   // At this point, there is a pending connection in progress. Hence, an event
 240   // that would normally trigger a new polling iteration should not do so now,
 241   // because the delay interval between successive polling attempts has not yet
 242   // expired.
 243   EXPECT_CALL(connection_finder, CreateConnectionProxy()).Times(0);
 244   connection_finder.AdapterPresentChanged(adapter_.get(), true);
 245 }
 246
 247 TEST_F(ProximityAuthBluetoothConnectionFinderTest,
 248        Find_ConnectionFails_PostsTaskToPollAgain_PollWaitsForTask) {
 249   StrictMock<MockBluetoothConnectionFinder> connection_finder;
 250
 251   MockConnection* connection = connection_finder.ExpectCreateConnection();
 252   connection_finder.Find(connection_callback_);
 253
 254   connection->SetStatus(Connection::IN_PROGRESS);
 255   connection->SetStatus(Connection::DISCONNECTED);
 256
 257   // At this point, there is a pending poll scheduled. Hence, an event that
 258   // would normally trigger a new polling iteration should not do so now,
 259   // because the delay interval between successive polling attempts has not yet
 260   // expired.
 261   EXPECT_CALL(connection_finder, CreateConnectionProxy()).Times(0);
 262   connection_finder.AdapterPresentChanged(adapter_.get(), true);
 263
 264   // Now, allow the pending task to run, but fail early, so that no new task is
 265   // posted.
 266   ON_CALL(*adapter_, IsPresent()).WillByDefault(Return(false));
 267   base::RunLoop run_loop;
 268   run_loop.RunUntilIdle();
 269   ON_CALL(*adapter_, IsPresent()).WillByDefault(Return(true));
 270
 271   // Now that there is no pending task, events should once again trigger new
 272   // polling iterations.
 273   connection_finder.ExpectCreateConnection();
 274   connection_finder.AdapterPresentChanged(adapter_.get(), true);
 275 }
 276
 277 }  // namespace proximity_auth