typescript-test

What problem does it solve?

This Skill provides a comprehensive guide for writing effective and maintainable Jest-based TypeScript tests. It helps developers overcome challenges in test structure, mocking, and asynchronous testing, ensuring reliable code and faster development cycles.

Core Features & Use Cases

• Standardized Test Structure: Defines file naming, hierarchy, and the Given-When-Then pattern for clarity.
• Effective Mocking: Guides on mocking external dependencies and internal modules using Jest's capabilities.
• Asynchronous Testing: Best practices for handling Promises and async/await in tests.
• Use Case: A developer needs to write new unit or integration tests for a TypeScript service, ensuring all edge cases are covered.
• Use Case: A team wants to improve the quality and consistency of their existing Jest test suite, making it easier to understand and maintain.

Quick Start

Generate Jest test cases for the attached userService.ts file, focusing on error scenarios and mocking external dependencies.