@Test
public void broadcast() {

    whenCall(retrofitMock.broadcast(isNull(), any(Broadcast.class)),
             BOT_API_SUCCESS_RESPONSE_BODY);
    final Broadcast broadcast = new Broadcast(singletonList(new TextMessage("text")), true);
    final BotApiResponse botApiResponse = target.broadcast(broadcast).join();
    verify(retrofitMock).broadcast(null, broadcast);
    assertThat(botApiResponse).isEqualTo(BOT_API_SUCCESS_RESPONSE);
}