@Test
void reservationPreferences() {

    final ControlApi control = mock(ControlApi.class);
    final Api<ControlApi> ca = mockApi(control);
    final Zonky z = mockZonkyControl(ca);
    final ReservationPreferencesImpl r = new ReservationPreferencesImpl();
    z.setReservationPreferences(r);
    verify(control).setReservationPreferences(eq(r));
}