如何使用 Enzyme 和 Jest 测试自定义钩子事件? (使用KeyPress)
我当前的自定义钩子:(获取键盘用户事件并更新 keyPress)
import React,{useEffect, useState} from 'react'
const useKeyPress = () => {
const [keyPress, setKeyPress] = useState('');
// If pressed key is our target key then set to true
const downHandler = (event) => {
setKeyPress(event.code);
}
const upHandler = () => {
setKeyPress('');
};
useEffect(() => {
window.addEventListener('keydown', downHandler);
window.addEventListener('keyup', upHandler);
return () => {
window.removeEventListener('keydown', downHandler);
window.removeEventListener('keyup', upHandler);
};
}, [])
return ([keyPress]);
}
export default useKeyPress;
有什么想法吗?
答案 0 :(得分:0)
感谢@Tom,我通过 react 测试库找到了解决方案。
import useKeyPress from './../../src/component/useKeyPress/useKeyPress';
import { renderHook, act } from '@testing-library/react-hooks'
import {fireEvent} from '@testing-library/react'
test('Fire Enter keyboard event', () => {
const { result } = renderHook((() => useKeyPress()))
act(() => {
fireEvent.keyDown(window, { key: 'Enter', code: 'Enter' });
})
expect(result.current.keyPress).toBe('Enter');
});