bluetooth: Add Device connection logic and accompanying user interface.

device/bluetooth/device_unittest.cc

+// 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.
+
+#include "device/bluetooth/device.h"
+
+#include <memory>
+#include <string>
+#include <utility>
+
+#include "base/logging.h"
+#include "base/memory/ptr_util.h"
+#include "base/memory/weak_ptr.h"
+#include "base/run_loop.h"
+#include "device/bluetooth/test/mock_bluetooth_adapter.h"
+#include "device/bluetooth/test/mock_bluetooth_device.h"
+#include "device/bluetooth/test/mock_bluetooth_gatt_connection.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using ::testing::Return;
+
+namespace bluetooth {
+
+typedef testing::NiceMock<device::MockBluetoothAdapter>
+    NiceMockBluetoothAdapter;
+typedef testing::NiceMock<device::MockBluetoothDevice> NiceMockBluetoothDevice;
+typedef testing::NiceMock<device::MockBluetoothGattService>
+    NiceMockBluetoothGattService;
+typedef testing::NiceMock<device::MockBluetoothGattConnection>
+    NiceMockBluetoothGattConnection;
+
+namespace {
+const char kTestLeDeviceAddress0[] = "11:22:33:44:55:66";
+const char kTestLeDeviceName0[] = "Test LE Device 0";
+
+const char kTestServiceId0[] = "service_id0";
+const char kTestServiceUuid0[] = "1234";
+
+const char kTestServiceId1[] = "service_id1";
+const char kTestServiceUuid1[] = "5678";
+
+void ExpectServices(size_t expected_length,
+                    const base::Closure continuation,
+                    std::vector<mojom::ServiceInfoPtr> services) {
+  EXPECT_EQ(expected_length, services.size());
+  continuation.Run();
+}
+
+class DeviceTest : public testing::Test {
+ public:
+  DeviceTest()
+      : adapter_(new NiceMockBluetoothAdapter),
+        message_loop_(new base::MessageLoop) {
+    device_.reset(
+        new NiceMockBluetoothDevice(adapter_.get(), 0, kTestLeDeviceName0,
+                                    kTestLeDeviceAddress0, false, true));
+
+    ON_CALL(*adapter_, GetDevice(kTestLeDeviceAddress0))
+        .WillByDefault(Return(device_.get()));
+
+    std::unique_ptr<NiceMockBluetoothGattService> service1(
+        new NiceMockBluetoothGattService(
+            device_.get(), kTestServiceId0,
+            device::BluetoothUUID(kTestServiceUuid0), true /* is_primary */,
+            false /* is_local */));
+    std::unique_ptr<NiceMockBluetoothGattService> service2(
+        new NiceMockBluetoothGattService(
+            device_.get(), kTestServiceId1,
+            device::BluetoothUUID(kTestServiceUuid1), true /* is_primary */,
+            false /* is_local */));
+
+    device_->AddMockService(std::move(service1));
+    device_->AddMockService(std::move(service2));
+
+    std::unique_ptr<NiceMockBluetoothGattConnection> connection(
+        new NiceMockBluetoothGattConnection(adapter_, device_->GetAddress()));
+
+    mojom::DevicePtr proxy;
+
+    // Owns itself.
+    device_service_.reset(
+        new Device(adapter_, std::move(connection), mojo::GetProxy(&proxy)));
+  }
+
+ protected:
+  void ExpectGetGattServicesCalls(int expected_calls) {
+    EXPECT_CALL(*device_, GetGattServices())
+        .Times(expected_calls)
+        .WillRepeatedly(Invoke(device_.get(),
+                               &device::MockBluetoothDevice::GetMockServices));
+  }
+
+  scoped_refptr<NiceMockBluetoothAdapter> adapter_;
+  std::unique_ptr<NiceMockBluetoothDevice> device_;
+  std::unique_ptr<Device> device_service_;
+  std::unique_ptr<base::MessageLoop> message_loop_;
+};
+}  // namespace
+
+TEST_F(DeviceTest, GetServices) {
+  EXPECT_CALL(*device_, IsGattServicesDiscoveryComplete())
+      .WillRepeatedly(Return(true));
+
+  ExpectGetGattServicesCalls(1);
+
+  base::RunLoop loop;
+
+  device_service_->set_connection_error_handler(loop.QuitClosure());
+
+  device_service_->GetServices(
+      base::Bind(&ExpectServices, 2, loop.QuitClosure()));
+  loop.Run();
+}
+
+TEST_F(DeviceTest, GetServicesNotDiscovered) {
+  EXPECT_CALL(*device_, IsGattServicesDiscoveryComplete())
+      .WillOnce(Return(false))
+      .WillOnce(Return(false))
+      .WillRepeatedly(Return(true));
+
+  ExpectGetGattServicesCalls(4);
+
+  base::RunLoop loop;
+
+  device_service_->set_connection_error_handler(loop.QuitClosure());
+
+  // Add more than one request to queue.
+  device_service_->GetServices(
+      base::Bind(&ExpectServices, 2, loop.QuitClosure()));
+  device_service_->GetServices(
+      base::Bind(&ExpectServices, 2, loop.QuitClosure()));
+
+  // Run then flush the queue. Calls GetGattServices twice.

[scheib, 2016/10/31 20:46:17]

Completes 2 queued GetServices tasks.

[mbrunson, 2016/10/31 21:39:25]

Done.

+  device_service_->GattServicesDiscovered(nullptr /* adapter */, device_.get());
+
+  // Queue should be empty so no more calls to GetGattServices.

[scheib, 2016/10/31 20:46:17]

"no more GetServices calls will complete".
Let's find a way to verify that no more GetServices calls are completed. In
BluetoothTest this is done by having counters incremented on events, and then
checking the sum is the expected result.

[mbrunson, 2016/10/31 21:39:25]

Done.

+  device_service_->GattServicesDiscovered(nullptr /* adapter */, device_.get());
+
+  // These should run immediately.
+  device_service_->GetServices(
+      base::Bind(&ExpectServices, 2, loop.QuitClosure()));
+  device_service_->GetServices(
+      base::Bind(&ExpectServices, 2, loop.QuitClosure()));
+
+  // Queue should be empty so no more calls to GetGattServices.
+  device_service_->GattServicesDiscovered(nullptr /* adapter */, device_.get());
+
+  loop.Run();
+}
+
+}  // namespace bluetooth