@Test
public void addUserIdsToAudience() throws Exception {

    File tmpFile = Files.newTemporaryFile();
    tmpFile.deleteOnExit();
    when(retrofitMock.addUserIdsToAudience(any())).thenReturn(new VoidCall());
    final BotApiResponse actual =
            target.addUserIdsToAudience(
                    5963L,
                    "UPLOAD!",
                    tmpFile
            ).get();
    verify(retrofitMock, only()).addUserIdsToAudience(any());
    assertThat(actual).isEqualTo(new BotApiResponse(null, "", Arrays.asList()));
}