Unit Testing Navigation Routes in SwiftUI

Navigation in SwiftUI often means hard‑coded NavigationLinks that can't be tested. This approach builds a testable Router.

What this video covers:

• Creating a Router type for programmatic navigation
• Using NavigationStack with strongly typed routes
• @Observable for state‑driven navigation
• Unit testing routes without the view hierarchy

What you'll test:

• Navigation paths change correctly
• Back/navigation logic works
• Deep linking and deeplink handling
• Authentication‑guarded routes

Why it matters: Navigation logic is business logic — and it should have test coverage just like any other feature.