public void CheckIfCandidateAlreadyAppliedTest()
{
var mockRepository = new Mock <IDeletableEntityRepository <Candidate> >();
mockRepository.Setup(x => x.All()).Returns(this.GetCandidatesData());
var service = new CandidatesService(mockRepository.Object);
var check = service.CheckIfCandidateAlreadyApplied("1", "2");
Assert.True(check);
}