Superpowers Tddv1.0.0

A developer needs to fix a bug where the checkout button remains disabled even after all required fields are filled. Using TDD, they write a failing test that expects the button to be enabled when all fields are valid, then write minimal code to pass it, ensuring the fix is correct and regression-free.

Implementing a new payment gateway integration. The developer writes a test for the payment processing function that expects a successful response with valid credentials, sees it fail due to missing implementation, writes the minimal API call code, then refactors to handle edge cases like network timeouts.

Building a user registration feature with email validation. The developer writes tests for empty email, invalid format, and duplicate email scenarios, following RED-GREEN-REFACTOR. This ensures robust validation and prevents regressions when adding features like password strength checks.

Creating a rate limiter middleware for an API. The developer writes a test that verifies requests are blocked after exceeding a limit, watches it fail, implements a simple counter-based limiter, then refactors to use a sliding window algorithm while keeping tests green.

Offer TDD coaching and code review services to teams adopting XP practices. Generate revenue by charging per sprint or per developer for mentoring and ensuring adherence to TDD disciplines.

Conduct in-person or virtual workshops teaching TDD fundamentals with hands-on exercises. Revenue comes from ticket sales or corporate training contracts, often bundled with follow-up support.

Develop custom software products with TDD as a differentiator, promising higher quality and fewer defects. Charge premium rates for projects, emphasizing reduced maintenance costs and faster time-to-market.