Does this skill work with the new Swift Testing framework?

Yes, it is specifically designed to leverage the modern Swift Testing framework while providing patterns that remain compatible with legacy XCTest suites.

Can I use this for SwiftUI previews?

Absolutely. Injecting mocks via protocols allows you to provide stable, predictable data to SwiftUI previews without requiring a live backend or local file access.

Why use protocol-based DI instead of subclassing?

Protocols are more flexible in Swift, allowing for value types (structs) and providing better support for composition and Sendable conformance in concurrent code compared to class inheritance.

How does this handle Swift Concurrency?

The patterns emphasize Sendable conformance and Actor-safe designs, ensuring your mocks and injected dependencies work correctly across task boundaries.

Swift Protocol DI & Testing

Name: Swift Protocol DI & Testing
Author: unju-ai

byunju-ai

0•

Mobile Development

Implements protocol-based dependency injection to create mockable, testable Swift architectures without side effects.

This skill provides a structured approach to making Swift applications testable by abstracting external dependencies like file systems, network calls, and APIs behind focused protocols. It enables developers to write deterministic tests using the Swift Testing framework, simulate error paths reliably, and ensure thread safety with Sendable conformance. By decoupling business logic from infrastructure, it simplifies testing across actors, apps, and SwiftUI previews, allowing for more robust and maintainable codebases.

主要功能

01Swift Testing integration for modern, deterministic unit tests

020 GitHub stars

03Protocol-based abstraction for file systems, networks, and external APIs

04Production-ready default parameter injection patterns

05Thread-safe mocking with Sendable and Actor support

06Configurable mock implementations for granular error path simulation

使用场景

01Simulating network failures and edge cases in unit tests reliably

02Building decoupled modules compatible with SwiftUI previews and app targets

03Testing file system operations without performing real I/O or disk writes

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add unju-ai/ecc swift-protocol-di-testing

For use in Claude.ai and ChatGPT

主要功能

01Swift Testing integration for modern, deterministic unit tests

020 GitHub stars

03Protocol-based abstraction for file systems, networks, and external APIs

04Production-ready default parameter injection patterns

05Thread-safe mocking with Sendable and Actor support

06Configurable mock implementations for granular error path simulation

使用场景

01Simulating network failures and edge cases in unit tests reliably

02Building decoupled modules compatible with SwiftUI previews and app targets

03Testing file system operations without performing real I/O or disk writes

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add unju-ai/ecc swift-protocol-di-testing

For use in Claude.ai and ChatGPT