Mobile Testing

Assess React Native testing requirements and configure Jest with React Native Testing Library.

Updated May 14, 2025

Search Tags:#testing #jest #coverage #unit-testing #integration-testing #react-native-testing-library

Ready to run

npx skills add https://github.com/BabakBar/VibeKeeper --skill mobile-testing

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: Mobile Testing
Source: https://github.com/BabakBar/VibeKeeper/tree/main/.claude/skills/testing
Command: npx skills add https://github.com/BabakBar/VibeKeeper --skill mobile-testing

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill guides you in writing and running tests for React Native apps using Jest and React Native Testing Library, enabling robust, maintainable code and faster iteration.

Core Features & Use Cases

Test scaffolding: Components, hooks, and utilities get test templates.
Patterns & templates: Ready-to-use test patterns for common scenarios.
Execution & coverage: Scripts to run tests and generate coverage reports.

Quick Start

Install dev dependencies, add test scripts to package.json, then run tests:

npm install --save-dev jest @testing-library/react-native
Add scripts: { "test": "jest", "test:watch": "jest --watch", "test:coverage": "jest --coverage" }
Run tests: npm test

Frequently Asked Questions about Mobile Testing

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I set up Jest and React Native Testing Library for testing React Native apps?▼

Jest and React Native Testing Library are the standard testing setup for React Native. Install them as dev dependencies (npm install --save-dev jest @testing-library/react-native), configure Jest in your project, add test scripts to package.json, and you're ready to write and run tests for components, hooks, and utilities.

What's the best way to write unit tests for React Native components?▼

Unit testing React Native components uses React Native Testing Library to render components and query by accessible elements rather than implementation details. The Skill provides ready-to-use test templates for components that follow best practices, reducing setup time and ensuring consistent test patterns across your project.

How do I measure and improve test coverage in a React Native project?▼

Test coverage reports show which lines of code are executed during tests. Run jest --coverage to generate coverage reports for your React Native codebase. The Skill includes npm scripts for automated coverage reporting, helping you identify untested code and track coverage over time.

Can I test hooks and utilities in React Native the same way as components?▼

Yes, React Native Testing Library supports testing custom hooks and utility functions alongside components. The Skill provides separate test templates and patterns for hooks and utilities, covering common testing scenarios like state updates, side effects, and pure utility logic.

What mocking patterns should I use when testing React Native code?▼

Mocking isolates code under test by replacing external dependencies. The Skill establishes mocking patterns for Jest in React Native contexts—covering modules, API calls, and native dependencies—with template examples you can adapt to your specific testing needs.

How do I debug test failures in React Native?▼

Debugging failed tests involves running tests in watch mode, inspecting error output, and isolating failures. The Skill supplies npm scripts and workflows for running tests interactively and generating detailed failure reports, helping you pinpoint and fix issues quickly.