Question

Using Android and testing on the device, I use this to check, if WiFI is connected:

        ConnectivityManager manager = (ConnectivityManager) MyApplication.getMyApplication().getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo info = manager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
    return info.isConnectedOrConnecting();

Works well. Is there a way to mock this for JUnit?

Thanx in advance,
Marcus

Answer 1

you can mock this functionality if you move the code into your own WifiServiceClass and let you application depend on the interface:

public class MyClassThatRequiresWifi {
    private IWifiService wifiService;
    public MyClassThatRequiresWifi(IWifiService wifiService) {
        this.wifiService = wifiService;
    }

    public void someMethodThatNeedsWifi() {
        if (this.wifiService.isConnectedOrConnecting())
            ...
    }
}

public IWifiService {
    boolean isConnectedOrConnecting();
}

public WifiService implements IWifiService {
    boolean isConnectedOrConnecting() {..}
}