Function Widget

test-utils/test/shared/act.test.jsx:291–297

()

			let counter = 0;

			function Widget() {
				useEffect(() => {
					++counter;
				});
				const [, forceUpdate] = useReducer(x => x + 1, 0);
				return <button onClick={forceUpdate}>test</button>;
			}

			act(() => {
				render(<Widget />, scratch);