Straight-forward tests, full-featured test suites, and clear coverage reports for zsh and —under zsh's emulation— csh, ksh, and sh. About 300 unique cloners as of Aug '25. Human-written.
Auto-generate fully-typed test spies from a class — across Vitest, Bun & node:test, with Angular/NestJS/React/Vue/Svelte recipes. A jest-auto-spies drop-in replacement.