Tests.ComparisonTests.CrudTestCore C# (CSharp) Метод

        static void CrudTestCore(ISimpleEmployeeRepository repo)
        {
            var emp1 = new Employee() { FirstName = "Tom", LastName = "Jones", Title = "President" };
            var employeeKey1 = repo.Insert(emp1);
            var echo1 = repo.Get(employeeKey1);

            Assert.AreNotEqual(0, echo1.EmployeeKey, "EmployeeKey was not set");
            Assert.AreEqual(emp1.FirstName, echo1.FirstName, "FirstName");
            Assert.AreEqual(emp1.LastName, echo1.LastName, "LastName");
            Assert.AreEqual(emp1.Title, echo1.Title, "Title");

            echo1.MiddleName = "G";
            repo.Update(echo1);
            var echo1b = repo.Get(employeeKey1);
            Assert.AreEqual("G", echo1b.MiddleName);


            var emp2 = new Employee() { FirstName = "Lisa", LastName = "Green", Title = "VP Transportation", ManagerKey = echo1.EmployeeKey };
            var echo2 = repo.InsertAndReturn(emp2);

            Assert.AreNotEqual(0, echo2.EmployeeKey, "EmployeeKey was not set");
            Assert.AreEqual(emp2.FirstName, echo2.FirstName, "FirstName");
            Assert.AreEqual(emp2.LastName, echo2.LastName, "LastName");
            Assert.AreEqual(emp2.Title, echo2.Title, "Title");
            Assert.AreEqual(emp2.ManagerKey, echo2.ManagerKey, "ManagerKey");
            Assert.IsNotNull(echo2.CreatedDate);

            var list = repo.GetAll();
            Assert.IsTrue(list.Any(e => e.EmployeeKey == echo1.EmployeeKey), "Employee 1 is missing");
            Assert.IsTrue(list.Any(e => e.EmployeeKey == echo2.EmployeeKey), "Employee 2 is missing");

            var whereSearch1 = repo.GetByManager(employeeKey1);
            Assert.IsFalse(whereSearch1.Any(x => x.EmployeeKey == echo1.EmployeeKey), "Emp1 should not have been returned");
            Assert.IsTrue(whereSearch1.Any(x => x.EmployeeKey == echo2.EmployeeKey), "Emp2 should have been returned");

            var projection = repo.GetOfficePhoneNumbers();
            Assert.IsTrue(projection.Any(e => e.EmployeeKey == echo1.EmployeeKey), "Employee 1 is missing");
            Assert.IsTrue(projection.Any(e => e.EmployeeKey == echo2.EmployeeKey), "Employee 2 is missing");

            var projection1 = projection.Single(e => e.EmployeeKey == echo1.EmployeeKey);
            projection1.OfficePhone = "123-456-7890";
            repo.Update(projection1);

            var echo1c = repo.Get(employeeKey1);
            Assert.AreEqual("123-456-7890", echo1c.OfficePhone);

            repo.Delete(echo2.EmployeeKey);
            repo.Delete(echo1.EmployeeKey);

            var list2 = repo.GetAll();
            Assert.AreEqual(list.Count - 2, list2.Count);
        }