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Add failing test using store.publisher in makeUIView #3745

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Add failing test using store.publisher in makeUIView #3745

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23 changes: 23 additions & 0 deletions Tests/ComposableArchitectureTests/StorePerceptionTests.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -68,13 +68,36 @@ final class StorePerceptionTests: BaseTCATestCase {
render(FeatureView())
}

@MainActor
func testPerceptionCheck_ViewRepresentable_publisher() {
#if canImport(UIKit)
struct ViewRepresentable: UIViewRepresentable {
let store = Store(initialState: Feature.State()) {
Feature()
}
func makeUIView(context: Context) -> UILabel {
let label = UILabel()
let cancellable = store.publisher.sink { [weak label] state in
label?.text = "\(state.count)"
}
objc_setAssociatedObject(label, cancellableKey, cancellable, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
return label
}
func updateUIView(_ view: UILabel, context: Context) {}
}
render(ViewRepresentable())
#endif
}

@MainActor
private func render(_ view: some View) {
let image = ImageRenderer(content: view).cgImage
_ = image
}
}

@MainActor private let cancellableKey = malloc(1)!

@Reducer
private struct Feature {
@ObservableState
Expand Down