tdd

name	tdd
description	Use red-green-refactor with behavior-first tests. Use when the user wants test-first work, TDD, or integration-style tests.

TDD

Test behavior through public interfaces. Avoid implementation-coupled tests.

Read tests.md and mocking.md when needed.

Rules

• Prefer integration-style tests.
• One test at a time.
• One red-green loop at a time.
• No horizontal slicing.
• No testing private methods.
• Refactor only after green.

Workflow

1. Confirm:

• public interface
• priority behaviors
• test strategy

2. Write the first failing test.
3. Write the minimum code to pass.
4. Repeat for the next behavior.
5. Refactor after green.

Per-Cycle Check

• behavior, not implementation
• public interface only
• survives refactor
• minimal code
• no speculative features