public async Task GetContestParticipantsCount()
{
var context = EssayCompetitionContextInMemoryFactory.InitializeContext();
var seedContestanContest = await this.SeedContestContestant(context);
var contestRepository = new EfDeletableEntityRepository <Contest>(context);
var essayRepository = new EfDeletableEntityRepository <Essay>(context);
var essayTeacherRepository = new EfDeletableEntityRepository <EssayTeacher>(context);
var contestantContestRepository = new EfDeletableEntityRepository <ContestantContest>(context);
var service = new ContestService(contestRepository, essayRepository, essayTeacherRepository, contestantContestRepository);
var participantsCount = service.GetContestParticipantsCount(seedContestanContest.First().Contest.Id);
Assert.True(participantsCount == seedContestanContest.Count(), "GetContestParticipantsCount method does not work correctly");
}
