Currently BluetoothAdapterWinrt exposes its DeviceId [1] via the GetName() method. However, this id is meant for internal use, and does not provide useful information for clients. In order to provide a real name, this DeviceId should be used to obtain the appropriate DeviceInformation [2] via CreateFromIdAsync [3], which exposes a Name [4] property as part of its interface.

In order to provide a fake implementation for tests, fake implementations of IDeviceInformationStatics and IDeviceInformation need to be introduced. Furthermore, a virtual GetDeviceInformationStaticsActivationFactory method should be added to BluetoothAdapterWinrt, which will be overidden by tests.

[1] https://docs.microsoft.com/en-us/uwp/api/windows.devices.bluetooth.bluetoothadapter.deviceid
[2] https://docs.microsoft.com/en-us/uwp/api/windows.devices.enumeration.deviceinformation
[3] https://docs.microsoft.com/en-us/uwp/api/windows.devices.enumeration.deviceinformation.createfromidasync
[4] https://docs.microsoft.com/en-us/uwp/api/windows.devices.enumeration.deviceinformation.name