public void Fullname_Formula_works()
		{
			ICustomerRepository repository = new CustomerRepository();
			var fromDb = repository.GetByID(_customers[1].CustomerID);
			Assert.IsNotNull(fromDb);
			Assert.AreNotSame(_customers[1], fromDb);
			StringAssert.Contains(fromDb.Firstname, fromDb.Fullname);
			StringAssert.Contains(fromDb.Lastname, fromDb.Fullname);
		}
		public void Can_get_existing_customer_by_id()
		{
			ICustomerRepository repository = new CustomerRepository();
			var fromDb = repository.GetByID(_customers[1].CustomerID);
			Assert.IsNotNull(fromDb);
			Assert.AreNotSame(_customers[1], fromDb);
			Assert.AreEqual(_customers[1].Firstname, fromDb.Firstname);
		}