arc: bluetooth: Send update to Android when got DeviceChanged event

components/arc/bluetooth/arc_bluetooth_bridge_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 "components/arc/bluetooth/arc_bluetooth_bridge.h"
 
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/strings/stringprintf.h"
 #include "components/arc/bluetooth/bluetooth_type_converters.h"
 #include "components/arc/common/bluetooth.mojom.h"
 #include "components/arc/test/fake_arc_bridge_service.h"
 #include "components/arc/test/fake_bluetooth_instance.h"
 #include "device/bluetooth/dbus/bluez_dbus_manager.h"
 #include "device/bluetooth/dbus/fake_bluetooth_adapter_client.h"
 #include "device/bluetooth/dbus/fake_bluetooth_device_client.h"
 #include "device/bluetooth/dbus/fake_bluetooth_gatt_characteristic_client.h"
 #include "device/bluetooth/dbus/fake_bluetooth_gatt_descriptor_client.h"
 #include "device/bluetooth/dbus/fake_bluetooth_gatt_service_client.h"
 #include "mojo/public/cpp/bindings/array.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+namespace {
+constexpr int16_t kTestRssi = -50;
+constexpr int16_t kTestRssi2 = -70;
+}
+
 namespace arc {
 
 class ArcBluetoothBridgeTest : public testing::Test {
  protected:
   void AddTestDevice() {
     bluez::BluezDBusManager* dbus_manager = bluez::BluezDBusManager::Get();
     auto* fake_bluetooth_device_client =
         static_cast<bluez::FakeBluetoothDeviceClient*>(
             dbus_manager->GetBluetoothDeviceClient());
     auto* fake_bluetooth_gatt_service_client =
         static_cast<bluez::FakeBluetoothGattServiceClient*>(
             dbus_manager->GetBluetoothGattServiceClient());
     auto* fake_bluetooth_gatt_characteristic_client =
         static_cast<bluez::FakeBluetoothGattCharacteristicClient*>(
             dbus_manager->GetBluetoothGattCharacteristicClient());
 
     fake_bluetooth_device_client->CreateDevice(
         dbus::ObjectPath(bluez::FakeBluetoothAdapterClient::kAdapterPath),
         dbus::ObjectPath(bluez::FakeBluetoothDeviceClient::kLowEnergyPath));
     fake_bluetooth_gatt_service_client->ExposeHeartRateService(
         dbus::ObjectPath(bluez::FakeBluetoothDeviceClient::kLowEnergyPath));
     fake_bluetooth_gatt_characteristic_client->ExposeHeartRateCharacteristics(
         fake_bluetooth_gatt_service_client->GetHeartRateServicePath());
+
+    ChangeTestDeviceRssi(kTestRssi);
+  }
+
+  void ChangeTestDeviceRssi(uint16_t rssi) {
+    bluez::BluezDBusManager* dbus_manager = bluez::BluezDBusManager::Get();
+    auto* fake_bluetooth_device_client =
+        static_cast<bluez::FakeBluetoothDeviceClient*>(
+            dbus_manager->GetBluetoothDeviceClient());
+    fake_bluetooth_device_client->UpdateDeviceRSSI(
+        dbus::ObjectPath(bluez::FakeBluetoothDeviceClient::kLowEnergyPath),
+        rssi);
   }
 
   void OnAdapterInitialized(scoped_refptr<device::BluetoothAdapter> adapter) {
     adapter_ = adapter;
     get_adapter_run_loop_.Quit();
   }
 
   void SetUp() override {
     std::unique_ptr<bluez::BluezDBusManagerSetter> dbus_setter =
         bluez::BluezDBusManager::GetSetterForTesting();
@@ skipping 29 matching lines @@
   base::MessageLoop message_loop_;
   base::RunLoop get_adapter_run_loop_;
 };
 
 // When we add device to bluez::FakeBluetoothDeviceClient, ArcBluetoothBridge
 // should send new device data to Android. This test will then check
 // the correctness of the device properties sent via arc bridge.
 TEST_F(ArcBluetoothBridgeTest, DeviceFound) {
   EXPECT_EQ(0u, fake_bluetooth_instance_->device_found_data().size());
   AddTestDevice();
-  EXPECT_EQ(1u, fake_bluetooth_instance_->device_found_data().size());
+  EXPECT_EQ(2u, fake_bluetooth_instance_->device_found_data().size());
   const mojo::Array<mojom::BluetoothPropertyPtr>& prop =
       fake_bluetooth_instance_->device_found_data().back();
 
   EXPECT_EQ(7u, prop.size());
   EXPECT_TRUE(prop[0]->is_bdname());
   EXPECT_EQ(std::string(bluez::FakeBluetoothDeviceClient::kLowEnergyName),
             prop[0]->get_bdname());
   EXPECT_TRUE(prop[1]->is_bdaddr());
   EXPECT_EQ(std::string(bluez::FakeBluetoothDeviceClient::kLowEnergyAddress),
             prop[1]->get_bdaddr()->To<std::string>());
   EXPECT_TRUE(prop[2]->is_uuids());
   EXPECT_EQ(1u, prop[2]->get_uuids().size());
   EXPECT_EQ(bluez::FakeBluetoothGattServiceClient::kHeartRateServiceUUID,
             prop[2]->get_uuids()[0].value());
   EXPECT_TRUE(prop[3]->is_device_class());
   EXPECT_EQ(bluez::FakeBluetoothDeviceClient::kLowEnergyClass,
             prop[3]->get_device_class());
   EXPECT_TRUE(prop[4]->is_device_type());
   // bluez::FakeBluetoothDeviceClient does not return proper device type.
   EXPECT_TRUE(prop[5]->is_remote_friendly_name());
   EXPECT_EQ(std::string(bluez::FakeBluetoothDeviceClient::kLowEnergyName),
             prop[5]->get_remote_friendly_name());
   EXPECT_TRUE(prop[6]->is_remote_rssi());
+  EXPECT_EQ(kTestRssi, prop[6]->get_remote_rssi());
+
+  ChangeTestDeviceRssi(kTestRssi2);
+  EXPECT_EQ(3u, fake_bluetooth_instance_->device_found_data().size());
+  const mojo::Array<mojom::BluetoothPropertyPtr>& prop2 =
+      fake_bluetooth_instance_->device_found_data().back();
+  EXPECT_EQ(7u, prop2.size());
+  EXPECT_TRUE(prop2[6]->is_remote_rssi());
+  EXPECT_EQ(kTestRssi2, prop2[6]->get_remote_rssi());
 }
 
 // Invoke OnDiscoveryStarted to send cached device to BT instance,
 // and check correctness of the Advertising data sent via arc bridge.
 TEST_F(ArcBluetoothBridgeTest, LEDeviceFound) {
-  EXPECT_EQ(0u, fake_bluetooth_instance_->device_found_data().size());
+  EXPECT_EQ(0u, fake_bluetooth_instance_->le_device_found_data().size());
   AddTestDevice();
   EXPECT_EQ(1u, fake_bluetooth_instance_->le_device_found_data().size());
 
-  const mojom::BluetoothAddressPtr& addr =
-      fake_bluetooth_instance_->le_device_found_data().back()->addr();
+  const auto& le_device_found_data =
+      fake_bluetooth_instance_->le_device_found_data().back();
+  const mojom::BluetoothAddressPtr& addr = le_device_found_data->addr();
   const mojo::Array<mojom::BluetoothAdvertisingDataPtr>& adv_data =
-      fake_bluetooth_instance_->le_device_found_data().back()->adv_data();
+      le_device_found_data->adv_data();
 
   EXPECT_EQ(std::string(bluez::FakeBluetoothDeviceClient::kLowEnergyAddress),
             addr->To<std::string>());
   EXPECT_EQ(2u, adv_data.size());
 
   EXPECT_TRUE(adv_data[0]->is_local_name());
   EXPECT_EQ(std::string(bluez::FakeBluetoothDeviceClient::kLowEnergyName),
             adv_data[0]->get_local_name().To<std::string>());
 
   EXPECT_TRUE(adv_data[1]->is_service_uuids_16());
   EXPECT_EQ(1u, adv_data[1]->get_service_uuids_16().size());
 
   std::string uuid16_str =
       base::StringPrintf("%04x", adv_data[1]->get_service_uuids_16()[0]);
   EXPECT_EQ(bluez::FakeBluetoothGattServiceClient::kHeartRateServiceUUID,
             device::BluetoothUUID(uuid16_str).canonical_value());
+
+  EXPECT_EQ(kTestRssi, le_device_found_data->rssi());
+
+  ChangeTestDeviceRssi(kTestRssi2);
+  EXPECT_EQ(2u, fake_bluetooth_instance_->le_device_found_data().size());
+  EXPECT_EQ(kTestRssi2,
+            fake_bluetooth_instance_->le_device_found_data().back()->rssi());
 }
 
 // Invoke GetGattDB and check correctness of the GattDB sent via arc bridge.
 TEST_F(ArcBluetoothBridgeTest, GetGattDB) {
   AddTestDevice();
 
   arc_bluetooth_bridge_->GetGattDB(mojom::BluetoothAddress::From(
       std::string(bluez::FakeBluetoothDeviceClient::kLowEnergyAddress)));
   EXPECT_EQ(1u, fake_bluetooth_instance_->gatt_db_result().size());
 
@@ skipping 43 matching lines @@
   EXPECT_EQ(device::BluetoothUUID(bluez::FakeBluetoothGattCharacteristicClient::
                                       kHeartRateControlPointUUID),
             db[4]->uuid);
   EXPECT_EQ(mojom::BluetoothGattDBAttributeType::BTGATT_DB_CHARACTERISTIC,
             db[4]->type);
   EXPECT_EQ(device::BluetoothGattCharacteristic::PROPERTY_WRITE,
             db[4]->properties);
 }
 
 }  // namespace arc