Create XCTest-based unit tests for iOS apps with Swift or Objective-C.
npx skills add https://github.com/sunzhk/shared-skills --skill unit-test-ios
Please help me install this Agent Skill. Skill: unit-test-ios Source: https://github.com/sunzhk/shared-skills/tree/main/unit-test-guide-skills/unit-test-ios Command: npx skills add https://github.com/sunzhk/shared-skills --skill unit-test-ios
iOS teams struggle to establish consistent, maintainable unit tests that cover business logic, state changes, and asynchronous flows. This Skill provides a structured XCTest/Swift Testing based approach to unit testing for iOS apps, including guidance on test structure, mocks, and coverage strategies.
Create a baseline XCTest file and add a sample test for a simple use case.
High-intent search queries and answers about installing and using this skill.
XCTest unit testing for iOS apps involves creating structured test cases that validate business rules, state transitions, and error handling. You establish a baseline XCTest file aligned with Apple guidance to ensure deterministic test execution.
Dependency isolation for deterministic iOS unit tests is achieved by using protocols as substitutes. This mocking pattern allows you to simulate state changes and error handling without relying on external systems or unpredictable asynchronous flows.
Yes, the XCTest-based unit testing guidance applies to iOS apps using both Swift and Objective-C. It covers framework selection and test structure tailored for both languages to maintain consistent testing patterns across your project.
Asynchronous testing in XCTest uses specific patterns to handle async flows and state changes reliably. The guidance covers these patterns to ensure your tests wait for operations to complete and validate results deterministically.
Choosing between XCTest and Swift Testing depends on your project needs. This guidance provides framework selection recommendations, comparing both to help you establish the right test pyramid and coverage strategies for your iOS app.
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