swift-composable-architecture

You can architect testable iOS features by organizing code around State, Action, Reducer, and Store components. This enforces end-to-end patterns for composable Swift code, ensuring correct state management and testability across modules.

The best way to structure navigation and dependencies is using @Reducer, @ObservableState, and @Dependency macros. This approach supports Scope and IdentifiedArrayOf collections to manage feature compositions and navigation patterns reliably.

You test state changes and effects using TestStore to verify that each action produces the expected state mutation. This includes testing with test clocks and validating the composition of child features for correct, end-to-end behavior.

Yes, you can refactor large iOS features into smaller modules by leveraging feature composition and IdentifiedArrayOf collections. This supports breaking down complex features into scalable, testable, and composable components across single or composed features.

This state management pattern works for both iOS and macOS apps. It organizes building, refactoring, debugging, and testing features across both platforms using the same composable architecture and end-to-end patterns.