Claude
Skills
Sign in
Back

tdd-workflow

Included with Lifetime
$97 forever

TDD London School workflow -- mock-first, outside-in test development

Code Review

What this skill does

Follow the TDD London School (mock-first) approach:

1. **Write the failing test first** -- define expected behavior with mocked dependencies
2. **Run the test** -- confirm it fails for the right reason
3. **Implement minimal code** -- make the test pass with the simplest solution
4. **Refactor** -- clean up while keeping tests green
5. **Repeat** -- add the next behavior

Before starting: `mcp__claude-flow__hooks_pre-task({ description: "TDD: FEATURE_NAME" })`
After completing: `mcp__claude-flow__hooks_post-task({ taskId: "tdd-FEATURE", success: true, storeResults: true })`

Principles:
- Mock external dependencies at boundaries
- Test behavior, not implementation
- One assertion per test when possible
- Descriptive names: `should [behavior] when [condition]`

Related in Code Review