我应该在我的域对象中测试数据库约束吗?例如,如果数据库中的字段是 varchar(500) 并且是必需的,我是否应该在我的代码中对此进行测试?或者我应该只依靠try/catch。
这是一个相当大的工作开销——如果可以避免的话。
IE
//partial method for a class generated by the Entity framework
[MetadataType(typeof(UserMetaData))]
public partial class User
{
}
public class UserMetaData
{
[Required]
[StringLength(500)]
public string FirstName { get; set; }
}
// My domain object tests
// This test in particular will throw an expected exception, saying that the first name cannot be found
[TestFixture]
public class UserTest
{
[Test]
[ExpectedException(typeof(ValidationException), ExpectedMessage = "The FirstName field is required.")]
public void user_should_require_first_name()
{
User user = new User();
user.Id = 0;
user.MiddleName = "x";
user.IsAdmin = true;
user.LastName = "James";
user.Password = "password";
user.Title = "Mr";
user.Username = "jamesbrown";
user.Email = "jamesbrown@somewebsite.com";
TestsHelper.ValidateObject(user);
}
}