Phase 2 · Track roadmap

Testing

Useful test boundaries, async UI, accessibility, and reliable test architecture.

3 learning modesPlanned content status

Learning path

A complete route through the subject

Start with the mental model, rehearse interview explanations, then apply the ideas.

Learn what each test level proves and where it belongs.

Discuss mocking, integration, flakiness, and maintainability.

Repair brittle tests and design coverage for real features.