}
@Test
public void testAddSingleVote() {
List<Long> pollOptionIds = Arrays.asList(1L);
Poll poll = createPollWithOptions(POLL_ID, pollOptionIds, VOTES_COUNT, null);
Mockito.when(pollDao.get(POLL_ID)).thenReturn(poll);
Poll resultPoll = pollService.vote(POLL_ID, pollOptionIds);
PollItem resultPollOption = resultPoll.getPollItems().get(0);
Assert.assertEquals(resultPollOption.getVotesCount(), VOTES_COUNT + 1,
"Count of votes should be increased.");
}