public void TestMethod() { _unitOfWorkMock.InitializeRepository <IPupilRepository, Pupil>(new List <Pupil> { new Pupil { PupilId = 1, FirstName = "FirstName", MiddleName = "MiddleName", LastName = "LastName", BirthDate = DateTime.Now } }); var actual = _pupilService.GetPupilsBornThisDate(DateTime.Today); }