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,我应该在代码中对此进行测试吗?或者我应该只依靠一个try/catch。TDD - 我应该在我的域模型中测试数据库约束吗?
这是一个相当大的工作开销 - 如果可以避免的话。有例外的规则打交道时
即
//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 = "[email protected]";
TestsHelper.ValidateObject(user);
}
}
丹尼尔 - 这是你在你的软件中做的事吗?例如。编写测试来验证你的ViewModel的字符串长度和所需的等等? – 2011-03-10 16:17:22
@ Sebastian Patten:只有当约束可能被击中,我不希望用户看到数据库异常。但我只是这样做,因为我很懒;-)我认为将所有约束放入ViewModel会更好 – 2011-03-10 16:28:33