Try these Copilot prompt templates:
1) 'Write Jest+React Testing Library tests for MyButton.jsx: assert label renders, onClick called on click, disabled prevents clicks; include imports, describe/it blocks, and an accessibility check.'
2) 'Generate tests for useFetch hook: mock fetch, assert loading→success→error flows and return values, include cleanup.'
3) 'Create unit tests for formatDate.js: table-driven cases (valid, invalid, locales), edge inputs, snapshots.'

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