@Test
public void testListCharacters() {

    String query = "query";
    String MARVEL_SERVICE_LIST_CHARACTERS = "service";
    String URL = "";
    int limit = 0;
    int offset = 0;
    Context context = Mockito.mock(Context.class);
    Mockito.doCallRealMethod().when(postman).listCharacters(context, query, limit, offset);
    Mockito.when(context.getString(R.string.MARVEL_SERVICE_LIST_CHARACTERS)).thenReturn(MARVEL_SERVICE_LIST_CHARACTERS);
    Mockito.when(mRequestUtil.buildBasicUrl(context, MARVEL_SERVICE_LIST_CHARACTERS, query, limit, offset)).thenReturn(URL);
    postman.listCharacters(context, query, limit, offset);
    Mockito.verify(mRequestService).setBody(EventCatalog.e0000, Request.Method.GET);
    Mockito.verify(mRequestService).execute(context);
}