@Test
public void leaveGroupTest() throws Exception {

    whenCall(retrofitMock.leaveGroup(any()),
             BOT_API_SUCCESS_RESPONSE_BODY);
    // Do
    final BotApiResponse botApiResponse = target.leaveGroup("ID").get();
    // Verify
    verify(retrofitMock, only()).leaveGroup("ID");
    assertThat(botApiResponse).isEqualTo(BOT_API_SUCCESS_RESPONSE);
}