public void GetAllAssignmentsBySpecializationShouldReturnOkObject(string specialization) { _internshipAssignmentMock.Setup(_ia => _ia.GetApprovedInternshipAssingmentBySpecialization(It.IsAny <Specialization>())) .Returns(GetAllAssignmentListBySpecialization); var specializationModel = new SpecializationModel { Specialization = specialization }; var assignments = _assignmentsController.GetApprovedInternshipAssingmentBySpecialization(specializationModel); Assert.NotNull(assignments); Assert.AreEqual(assignments.GetType(), typeof(OkObjectResult)); }