public async Task Post_given_valid_dto_returns_CreatedAtAction()
{
var dto = new VoteDTO();
var repo = new Mock <IVoteRepository>();
repo.Setup(s => s.CreateAsync(It.IsAny <VoteDTO>())).ReturnsAsync(1);
var controller = new VotesController(repo.Object);
var post = await controller.Post(dto);
Assert.IsType <CreatedAtActionResult>(post.Result);
}