public ActionResult <CandidateModel> GetCandidate(int id)
        {
            var candidateEntity = _interviewService.GetCandidate(id);

            if (candidateEntity == null)
            {
                return(NotFound($"No Candidate of id {id} exists"));
            }

            var retVal = new CandidateModel()
            {
                Id           = id,
                FirstName    = candidateEntity.FirstName,
                LastName     = candidateEntity.LastName,
                PositionType = candidateEntity.PositionType,
                Created      = candidateEntity.Created
            };

            if (candidateEntity.Tests.Any())
            {
                retVal.Tests = new List <CandidateTestModel>();
                foreach (var test in candidateEntity.Tests)
                {
                    retVal.Tests.Add(new CandidateTestModel(test));
                }
            }

            return(retVal);
        }