当返回类型为 ActionResult 时,如何对操作进行单元测试? [英] How to unit-test an action, when return type is ActionResult?
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问题描述
我已经为以下操作编写了单元测试.
I have written unit test for following action.
[HttpPost]
public ActionResult/*ViewResult*/ Create(MyViewModel vm)
{
if (ModelState.IsValid)
{
//Do something...
return RedirectToAction("Index");
}
return View(vm);
}
测试方法可以访问Model
属性,只有返回类型为ViewResult
.在上面的代码中,我使用了 RedirectToAction
所以这个动作的返回类型不能是 ViewResult
.
Test method can access Model
properties, only when return type is ViewResult
. In above code, I have used RedirectToAction
so return type of this action can not be ViewResult
.
在这种情况下,您如何对操作进行单元测试?
In such scenario how do you unit-test an action?
推荐答案
这是我的小例子:
public ActionResult Index(int id)
{
if (1 != id)
{
return RedirectToAction("asd");
}
return View();
}
还有测试:
[TestMethod]
public void TestMethod1()
{
HomeController homeController = new HomeController();
ActionResult result = homeController.Index(10);
Assert.IsInstanceOfType(result,typeof(RedirectToRouteResult));
RedirectToRouteResult routeResult = result as RedirectToRouteResult;
Assert.AreEqual(routeResult.RouteValues["action"], "asd");
}
[TestMethod]
public void TestMethod2()
{
HomeController homeController = new HomeController();
ActionResult result = homeController.Index(1);
Assert.IsInstanceOfType(result, typeof(ViewResult));
}
确认结果类型为 ViewResut 后,您可以将其转换为:
Once you verified that the result type is ViewResut you can cast to it:
ViewResult vResult = result as ViewResult;
if(vResult != null)
{
Assert.IsInstanceOfType(vResult.Model, typeof(YourModelType));
YourModelType model = vResult.Model as YourModelType;
if(model != null)
{
//...
}
}
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