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Write test code. 100% coverage, SSR tests, edge cases. Use when writing tests, adding test coverage.
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| name | test-writer |
| description | Write test code. 100% coverage, SSR tests, edge cases. Use when writing tests, adding test coverage. |
| allowed-tools | Read, Write, Edit, Bash |
Writes tests that achieve 100% coverage.
yarn test:spec # Run a single test
yarn test:coverage # Check coverage
it('is safe on server side rendering', () => {
const result = renderHookSSR.serverOnly(() => useHook());
expect(result.current).toBeDefined();
});
it('returns expected value', () => {
const { result } = renderHook(() => useHook(input));
expect(result.current).toBe(expected);
});
it('handles null/undefined', () => { ... });
it('handles empty values', () => { ... });
it('updates when state changes', () => {
const { result, rerender } = renderHook(({ value }) => useHook(value), {
initialProps: { value: 'initial' },
});
rerender({ value: 'updated' });
expect(result.current).toBe('updated');
});
All lines, branches, and functions must have 100% coverage.