Custom view(builder) example about viewinspector HOT 3 CLOSED

Hey @nfrydenholm

I double-checked the view extraction code and found out that the requirement for the generic parameter to match the actual inner view type was unnecessary, so this requirement is removed in v0.3.14

The base view type still has to match, but if it has a generic parameter, you can substitute any view type, such as AnyView or EmptyView:

.view(FormBaseView<EmptyView>.self).viewBuilder()

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Hey @nfrydenholm

It turned out that ViewInspector was unable to extract the @ViewBuilder's content. I've added support for this in v0.3.13

let view = FormBaseView {
    Spacer()
    Text("Abc")
}

let sut = try view.inspect().viewBuilder().text(1)

let view = AnyView(FormBaseView { Text("Abc") })

let sut = try view.inspect().anyView().view(FormBaseView<Text>.self).viewBuilder().text(0)

// When content is 2 or more views:
.view(FormBaseView<TupleView<(Spacer, Text)>>.self)

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Thanks @nalexn - that was a quick reaction to my question - much appreciated 🙇‍♂️ 👍

I got it working based on the examples you provided. 👏

I did bump into an issue, where I had to make a minor change to my code.

Based on the below sample, maybe you can tell if it's expected behaviour 😄

        FormBaseView(viewModel: viewModel) {
            view(for: viewModel.viewState)
                .id(viewModel.viewState)
                .transition(.opacity)
            Spacer()
        }

private func view(for viewState: ViewState) -> AnyView { 
.... //switch on viewState and return correct view
}

If I run a ViewInspector test on this, I get a very literal Tuple back saying the type was expected like this
FormBaseView<TupleView<(ModifiedContent<IDView<AnyView, ViewState>, _TraitWritingModifier<TransitionTraitKey>>, Spacer)>>

If I wrap the function call to my private view-function in an AnyView then it works

        FormBaseView(viewModel: viewModel) {
            AnyView(view(for: viewModel.viewState)
                .id(viewModel.viewState)
                .transition(.opacity))
            Spacer()
        }

But since that function is already returning an AnyView, it feels like I'm wrapping my code one extra time to satisfy the tests.
Would it be possible to somehow look at the outcome from a function like that, or is the solution to make sure it's wrapped in an AnyView.

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