Unit testing

[svickers]

Love this library, makes life so much easier. When writing unit tests for any action that uses the extension methods I am running into an issue:

Object reference not set to an instance of an object. at Microsoft.AspNetCore.Mvc.ControllerExtensions.GetExpresionRouteHelper(Controller controller)\n at Microsoft.AspNetCore.Mvc.ControllerExtensions.RedirectToAction[TController](TController controller, Expression`1 action, Object routeValues)\n at insights.headset.io.Controllers.HomeController.d__24.MoveNext() in /Users/scottvickers/dev/insights.headset.io/Controllers/HomeController.cs:line 246

Here is a simple example:

public async Task<IActionResult> RedirectTest(){
    return this.RedirectToAction<HomeController>(c=>c.Index(""));
}

[Fact]
public async Task RedirectTest(){
    var result = await controller.RedirectTest() as RedirectToActionResult;
    Assert.NotNull(result);
}

Any ideas?

[ivaylokenov]

@svickers You can take a look at this issue for a possible solution: https://github.com/ivaylokenov/AspNet.Mvc.TypedRouting/issues/15 Let me know whether it fixes your problem. I am planning to enhance the unit testing experience when using the library.

[svickers]

I added the TestInit stuff but not having any luck still. When debugging I've verified that the testinit methods are called appropriately but still null reference exception on GetExpressionRouteHelper. Any ideas what I might be missing?

[svickers]

Scratch that, was missing the ControllerContext update when instantiating my controllers: https://github.com/ivaylokenov/AspNet.Mvc.TypedRouting/blob/master/test/AspNet.Mvc.TypedRouting.Test/LinkGeneration/ControllerExtensionsTest.cs#L447