Writing Unit Tests Typescript

What it does

This skill generates TypeScript unit tests for provided code. It leverages Jest as the testing framework and focuses on creating test files with assertions to verify expected behavior. The generated tests include setup, function calls, and assertions based on the input code's functionality.

When to use it

• You have existing JavaScript or TypeScript code that needs automated unit tests.
• You want to quickly generate a baseline set of tests for new functions or modules.
• You are refactoring code and need to ensure existing functionality remains intact.
• You're learning about testing in TypeScript and want examples.

Key capabilities

• Generates Jest-compatible test files.
• Creates assertions to verify function behavior.
• Supports TypeScript code input.
• Includes setup for the testing environment.

Example prompts

• "Write unit tests for this TypeScript function: function add(a: number, b: number): number { return a + b; }"
• "Generate Jest tests for this component: <MyComponent />"
• "Create a test file with assertions for the following code snippet."

Tips & gotchas

• This skill assumes familiarity with Jest and TypeScript. You may need to adjust generated tests based on your project's specific testing environment.