从单元测试调用时，ASP.NET MVC 不会添加 ModelError
我有一个模型项
public class EntryInputModel
{
...
[Required(ErrorMessage = "Description is required.", AllowEmptyStrings = false)]
public virtual string Description { get; set; }
}
和一个控制器操作
public ActionResult Add([Bind(Exclude = "Id")] EntryInputModel newEntry)
{
if (ModelState.IsValid)
{
var entry = Mapper.Map<EntryInputModel, Entry>(newEntry);
repository.Add(entry);
unitOfWork.SaveChanges();
return RedirectToAction("Details", new { id = entry.Id });
}
return RedirectToAction("Create");
}
当我在单元测试中创建 EntryInputModel 时，将 Description 属性设置为 null 并将其传递给操作方法，我仍然得到 ModelState.IsValid == true，即使我已经调试并验证了 newEntry.Description == null。
为什么这不起作用？
I have a model item
public class EntryInputModel
{
...
[Required(ErrorMessage = "Description is required.", AllowEmptyStrings = false)]
public virtual string Description { get; set; }
}
and a controller action
public ActionResult Add([Bind(Exclude = "Id")] EntryInputModel newEntry)
{
if (ModelState.IsValid)
{
var entry = Mapper.Map<EntryInputModel, Entry>(newEntry);
repository.Add(entry);
unitOfWork.SaveChanges();
return RedirectToAction("Details", new { id = entry.Id });
}
return RedirectToAction("Create");
}
When I create an EntryInputModel in a unit test, set the Description property to null and pass it to the action method, I still get ModelState.IsValid == true, even though I have debugged and verified that newEntry.Description == null.
Why doesn't this work?
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这是因为当您从测试调用操作时不会发生模型绑定。模型绑定是将发布的表单值映射到类型并将其作为参数传递给操作方法的过程。
This is because model binding doesn't take place when you invoke an action from a test. Model binding is the process of mapping posted form values to a type and pass it as a parameter to an action method.