Verify redirect with unit test in asp.net mvc

Question

Is there an easy way to verify in a unit test that a controller action is indeed redirecting to a specific page?

Controller code:

public ActionResult Create(ProductModel newProduct)
{
    this.repository.CreateProduct(newProduct);
    return RedirectToAction("Index");
}

So in my test, I would need to verify that the controller is actually redirecting.

ProductController controller = new ProductController(repository);

RedirectToRouteResult result = (RedirectToRouteResult)controller.Create(newProduct);

bool redirected = checkGoesHere;
Assert.True(redirected, "Should have redirected to 'Index'");

I'm just not sure how to do the verification. Any ideas?

Darin Dimitrov · Accepted Answer · 2012-07-15 19:47:22Z

26

Sure:

Assert.AreEqual("Index", result.RouteValues["action"]);
Assert.IsNull(result.RouteValues["controller"]); // means we redirected to the same controller

and using MvcContrib.TestHelper you could write this unit test in a much more elegant way (you don't even need to cast to a RedirectToRouteResult):

// arrange
var sut = new ProductController(repository);

// act
var result = sut.Create(newProduct);

// assert
result
    .AssertActionRedirect()
    .ToAction("Index");

answered Jul 15, 2012 at 19:47

Darin Dimitrov

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1 Comment

will Over a year ago

This MvcContrib library is fantastic!

Anurag · Accepted Answer · 2013-12-06 14:12:39Z

11

Try this...

var result = sut.Create(newProduct) as RedirectToRouteResult;
Assert.Equal(result.RouteValues["action"], "Index");

And if you are passing a parameter in redirection you can do something like this...

var result = sut.Create(newProduct) as RedirectToRouteResult;
Assert.Equal(result.RouteValues["action"], "Index");
Assert.Equal(result.RouteValues["Parameter Name"], "Parameter Value");

Hope this helps :)

answered Dec 6, 2013 at 14:12

Anurag

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