Is there a way to assert that StateHasChanged method has been called?

[MiBuena]

I have a method which basically looks like this:

public void ShowSpinner() { IsVisible = true; StateHasChanged(); }

Is there a way to test that the StateHasChanged method has been called in this method?

[egil]

Hi @MiBuena

Not directly. But hopefully you are not triggering a render through StateHasChanged without that render changing the render tree, so I would use the usual ways to see if the spinner (im guessing) is now showing, e.g. by using the cut.Find("css selector that finds the spinner").

If you really need to just see that a render has occurred, you can inspect the cut.RenderCount property, which will increment each time the component under test renders.

Hope this is helpful, Egil.

[MiBuena]

Thank you very much!