Test Generation

Test coverage for React components improves by generating targeted unit tests that cover rendering, user interactions, props variations, and accessibility. This Skill analyzes coverage gaps and scaffolds Jest and React Testing Library tests automatically, accelerating progress toward your coverage target.

Yes. Test generation automates creating tests for React hooks, context providers, and utility functions by analyzing uncovered code paths and generating comprehensive test suites. This eliminates manual scaffolding and identifies exactly which functions and branches lack coverage.

The fastest approach prioritizes high-impact components—UI elements, hooks, and utilities—and generates tests that cover rendering, interaction, props, accessibility, and snapshots. Intelligent gap analysis identifies which files need tests most, reducing manual review time.

Yes. Jest and React Testing Library are the native frameworks for this Skill. Tests are generated in Jest syntax with React Testing Library patterns, integrate with npm test and npm run test:coverage scripts, and follow conventional __tests__ directory placement.

Run npm run test:coverage to generate a coverage report showing file-level, line, branch, and function metrics. This identifies gaps before test generation and validates progress—for example, moving from 48% to 70% coverage—after tests are scaffolded.

Test generation works from zero by analyzing your codebase structure and creating initial test suites for all components, hooks, and utilities. No prior tests are required; the Skill scaffolds complete coverage from source files alone.