phase-test-tdd

Test-driven development (TDD) starts by generating test files before implementation. This Skill creates unit, integration, and performance test files for Mojo and Python, providing a structured template to write failing tests first, then implement minimal code to pass them, ensuring testable, correct code from the start.

Yes. This Skill generates test files for both Mojo and Python, supporting unit, integration, and performance tests across both languages. It integrates with pytest and coordinates the red-green-refactor cycle for each framework.

Red-green-refactor is the core TDD cycle: write a failing test (red), implement minimal code to pass it (green), then clean up the implementation (refactor). This Skill guides you through all three phases, producing verifiable, passing test suites with higher code quality.

Use this Skill to generate a test file by specifying the function or module you want to test—for example, 'matrix_multiply'. It creates a template with unit test structure, so you can immediately write failing tests and begin the TDD cycle.

This Skill generates unit, integration, and performance test files. It automates scaffolding for all three test types across Mojo and Python, supporting the full range of testing requirements within a single TDD workflow.

You need the Mojo SDK and pytest. These enable test file generation and execution across Mojo and Python test runners, allowing this Skill to coordinate the complete TDD workflow.