Test Writing Prompts

Write unit tests for this function: [paste function]. Cover: happy path, edge cases, error conditions, boundary values, and type edge cases. Use [Jest/pytest/etc.] syntax. Each test should be independent and clearly named.

Write an integration test for this flow: [describe flow]. Components involved: [list them]. The test should verify: correct component interaction, data flow between components, and error handling across boundaries.

Create E2E test scenarios for [feature/page]. Include: critical user flows, edge cases users might encounter, cross-browser considerations, and performance thresholds. Write in [Playwright/Cypress/etc.] format.

Create a test data factory for [entity type]. Include: basic factory function, variations for different scenarios (valid, invalid, edge cases), and builder pattern for customization. Make it easy to create test data.

Create mocks for testing code that depends on: [external service/database/API]. The mock should: simulate realistic responses, allow configuring different scenarios, and track calls for assertions.

Help me build [feature] using TDD. First, write the failing test based on the requirement: [describe requirement]. Then I'll implement. Then we'll refactor. Guide me through the red-green-refactor cycle.