public void CanRetrieveJustTheCandidatesThatHaveOutstandingAssessments()
        {
            var candidates = CreateCandidates();

            candidates.Add(new Candidate
            {
                Id                 = new Guid("495c0cbb-91e6-4e9a-bab3-80661c07199f"),
                RoleId             = Guid.NewGuid(),
                Firstname          = "Late",
                Lastname           = "Finisher1",
                AptitudeAssessment = new AptitudeAssessment
                {
                    SentOn = DateTime.Now.Subtract(TimeSpan.FromDays(3)),
                },
                BehaviourAssessment = new BehaviourAssessment
                {
                    SentOn           = DateTime.Now.Subtract(TimeSpan.FromDays(6)),
                    CompletedOn      = DateTime.Now.Subtract(TimeSpan.FromDays(4)),
                    WorkingStrengths = "WS"
                }
            });
            candidates.Add(new Candidate
            {
                Id                 = new Guid("777e0f68-d90c-46e7-a473-57c2233ee99e"),
                RoleId             = Guid.NewGuid(),
                Firstname          = "Late",
                Lastname           = "Finisher2",
                AptitudeAssessment = new AptitudeAssessment
                {
                    SentOn            = DateTime.Now.Subtract(TimeSpan.FromDays(3)),
                    CompletedOn       = DateTime.Now.Subtract(TimeSpan.FromDays(1)),
                    TrainabilityIndex = 24
                },
                BehaviourAssessment = new BehaviourAssessment
                {
                    SentOn = DateTime.Now.Subtract(TimeSpan.FromDays(6)),
                }
            });
            _repo.Setup(r => r.GetCandidatesWithOutstandingAssessments()).Returns(candidates.Where(c => c.AptitudeAssessment.CompletedOn == null || c.BehaviourAssessment.CompletedOn == null));

            var result      = _controller.GetCandidatesWithOutstandingAssessments();
            var okResult    = (OkObjectResult)result.Result;
            var resultValue = (IEnumerable <Candidate>)okResult.Value;

            _repo.Verify(r => r.GetCandidatesWithOutstandingAssessments(), Times.Once);
            Assert.AreEqual(2, resultValue.Count());
        }