Standups-MVC
A SwiftData-backed clone of apple/Scrumdinger and pointfreeco/SyncUps, written in MVC architecture (with added testability as an afterthought 🙂).
Motivation
In its current state, SwiftUI itself isn't testable. Apple's sample code, e.g. apple/Scrumdinger, is written using MVC architecture, but there is no test suite. It is unclear whether apple uses some private testing APIs, or just prefers other kinds of tests.
A minimal, Apple-like MVC approach integrates well with existing SwiftUI tooling (not only @State, @Binding, @Bindable, @Observable, but also @Environment for dependency injection, SwiftData's @Query, or even Firebase's @FirestoreQuery or Realm's @ObservedRealmObject). This often makes it the default choice for many startups (including most of my consulting clients), over more elaborate architectures like pointfree.co's "Modern SwiftUI approach" super clean MVVM, or (also pointfree.co's) The Composable Architecture.
This repository shows that it is possible to achieve decent testing ergonomics using a plain SwiftUI MVC architecture, by adding a reasonable amount of simple boilerplate. It relies on SwiftUI's built-in PreferenceKey mechanism to publish direct access to "controller" Views.
It is imho also a decent showcase of how to use SwiftData for a basic app.