@Test
public void deletePost() throws Exception {

    String id = "id1";
    when(rxTapglue.deletePost(id)).thenReturn(voidObservable);
    whenNew(RxWrapper.class).withNoArguments().thenReturn(voidWrapper);
    tapglue.deletePost(id);
    verify(voidWrapper).unwrap(voidObservable);
}