我应该在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,我应该在我的代码中对此进行测试吗?或者我应该依靠try / catch。
这是一项相当大的工作开销 - 如果可以避免的话。
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 = "jamesbrown@somewebsite.com";
TestsHelper.ValidateObject(user);
}
}
答案 0 :(得分:0)
通常,在处理规则的异常时,try ... catch是最有效的。这也意味着您只需要在数据库中更改/添加规则 - 而不是在数据库和代码中。
答案 1 :(得分:0)