How does this skill handle Swift concurrency?

It enforces Sendable conformance and provides patterns for injecting dependencies into actors, ensuring your unit tests remain thread-safe and modern.

Does this skill help with SwiftUI previews?

Absolutely. By using protocol-based DI, you can inject mock data providers to render SwiftUI previews instantly without needing a live backend or real file system access.

Can I use this with the standard Swift Testing framework?

Yes, the skill is specifically designed to leverage the modern Swift Testing framework while maintaining compatibility with legacy XCTest suites.

Why use protocols instead of classes for DI in Swift?

Protocols allow for flexible, decoupled code where production and mock implementations are interchangeable, facilitating better testability and adherence to the Single Responsibility Principle.

Swift Protocol DI & Testing

Name: Swift Protocol DI & Testing
Author: nbossn

bynbossn

0•

Mobile Development

Implements protocol-based dependency injection patterns to create highly testable, mockable Swift code for file systems, networks, and external APIs.

This skill provides a comprehensive framework for architecting Swift applications with testability in mind by abstracting external dependencies behind focused, small-scale protocols. It offers structured patterns for creating production implementations alongside configurable mock objects, enabling developers to simulate complex edge cases and error paths deterministically using the modern Swift Testing framework. It is particularly effective for projects utilizing Swift concurrency, ensuring thread-safe dependency injection with actors and Sendable compliance while simplifying development across app, test, and SwiftUI preview environments.

Características Principales

01Modern Swift Testing framework integration patterns

02Default parameter injection for clean production-to-test transitions

030 GitHub stars

04Configurable mock implementations for deterministic testing

05Protocol-based abstraction for I/O and external APIs

06Thread-safe design using Sendable and Swift actors

Casos de Uso

01Providing mock data for SwiftUI previews and cross-platform modules

02Unit testing Swift actors and concurrent code safely

03Simulating file system errors or network failures without real I/O

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add nbossn/claude-code-base swift-protocol-di-testing

For use in Claude.ai and ChatGPT

Características Principales

01Modern Swift Testing framework integration patterns

02Default parameter injection for clean production-to-test transitions

030 GitHub stars

04Configurable mock implementations for deterministic testing

05Protocol-based abstraction for I/O and external APIs

06Thread-safe design using Sendable and Swift actors

Casos de Uso

01Providing mock data for SwiftUI previews and cross-platform modules

02Unit testing Swift actors and concurrent code safely

03Simulating file system errors or network failures without real I/O

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add nbossn/claude-code-base swift-protocol-di-testing

For use in Claude.ai and ChatGPT