### Question:
RxFusedLocationProviderApiImpl implements RxFusedLocationProviderApi { @Override public Single<Status> setMockLocation(RxLostApiClient client, Location mockLocation) { throw new RuntimeException("Sorry, not yet implemented"); }  @Override Maybe<Location> getLastLocation(RxLostApiClient client); @Override Maybe<LocationAvailability> getLocationAvailability(RxLostApiClient client); @Override Single<Status> requestLocationUpdates(RxLostApiClient client, LocationRequest request,
      LocationListener listener); @Override Single<Status> requestLocationUpdates(RxLostApiClient client, LocationRequest request,
      LocationListener listener, Looper looper); @Override Single<Status> requestLocationUpdates(RxLostApiClient client, LocationRequest request,
      LocationCallback callback, Looper looper); @Override Single<Status> requestLocationUpdates(RxLostApiClient client, LocationRequest request,
      PendingIntent callbackIntent); @Override Single<Status> removeLocationUpdates(RxLostApiClient client, LocationListener listener); @Override Single<Status> removeLocationUpdates(RxLostApiClient client,
      PendingIntent callbackIntent); @Override Single<Status> removeLocationUpdates(RxLostApiClient client, LocationCallback callback); @Override Single<Status> setMockMode(RxLostApiClient client, boolean isMockMode); @Override Single<Status> setMockLocation(RxLostApiClient client, Location mockLocation); @Override Single<Status> setMockTrace(RxLostApiClient client, String path, String filename); @Override Observable<Location> requestLocationUpdates(RxLostApiClient client,
      LocationRequest request);  }### Answer:
@Test(expected = RuntimeException.class) public void setMockLocation() throws Exception { api.setMockLocation(mock(RxLostApiClient.class), mock(Location.class)); }