How to inspect ForEach? about viewinspector HOT 4 CLOSED

Hey @davisford ,

The "forEach" inspection works the same way as for Stack view. forEach.anyView(0) would not work in your case, forEach.vStack(0) is the correct call, which would return the vStack for the first element of the ForEach. In the same manner, forEach.vStack(1) returns the second one, and so on.

But the error you're observing (viewIndexOutOfBounds) implies that your orgs array is empty. If there were at least one element, you would get an error that ForEach does not contain AnyView (because you have VStack instead)

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Hi @nalexn that makes sense now. I have injected a mock view model in this view's initializer in the test. When the view's .onAppear is called, it populates the orgs array, but this does not appear to be working in a unit test.

I am either mis-understanding something about the eventing in SwiftUI, or it isn't being triggered from the unit test.

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The .onAppear gets called only when the view is part of the active view hierarchy. In unit tests, you need to manually inject view into the app's content view. You can check my other project where I do this in the tests: https://github.com/nalexn/clean-architecture-swiftui

Another pitfall here is that after the injection, in the onAppear callback you should obtain a fresh copy of the "sut" view by inspecting the active hierarchy from scratch.

Views are structs, so the view you create in the beginning of the test will eventually be an outdated original version of the updated view in the onAppear callback.

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Thanks @nalexn -- makes sense. I was able to get it working. Appreciate the good info.

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