test-gen

name	test-gen
description	Generate comprehensive unit tests for code. Use this skill when the user runs /test-gen or asks for this kind of task on a file or directory (e.g. "/test-gen @./src/app.py").

/test-gen

Generate comprehensive unit tests for the provided code with:

Coverage Requirements

• All public methods and functions
• Happy path scenarios
• Edge cases (null, empty, boundary values)
• Error conditions and exception handling
• State transitions if applicable

Test Structure

• Use the appropriate testing framework for the language:
  • Python: pytest with fixtures
  • JavaScript/TypeScript: Jest with describe/it blocks
  • Java: JUnit 5 with @Test annotations
• Include setup and teardown where needed
• Use meaningful test names that describe the behavior
• Add comments explaining complex test scenarios

Mocking

• Mock external dependencies appropriately
• Use dependency injection patterns
• Avoid testing implementation details

Test Data

• Create realistic test fixtures
• Include edge case data (unicode, long strings, special characters)
• Use parameterized tests for multiple scenarios

Generate the tests with proper file naming conventions and organize them logically.

Apply the above to the file(s) or directory the user referenced with @.