如何解决如何测试本机方法?
我想测试 Vibration
的 react-native
模块,问题是我尝试测试时出错:
使用这个组件:
import React,{ useEffect } from 'react';
import { Text,Vibration } from 'react-native';
interface Props {}
export const MyComponent = (props: Props) => {
useEffect(() => Vibration.vibrate(1),[]);
return (
<Text>asdaf</Text>
);
};
还有这个测试文件:
// @ts-nocheck
import React from 'react';
import { render } from '@testing-library/react-native';
import { NativeModules } from 'react-native';
import { MyComponent } from '../../../src/modules/MyComponent';
describe('MyComponent',() => {
it('alpha',() => {
const { debug } = render(<MyComponent/>);
expect(true).toBeTruthy();
});
});
我收到此错误:
Invariant Violation: TurboModuleRegistry.getEnforcing(...): 'Vibration' Could not be found. Verify that a module by this name is registered in the native binary.
我试图像这样模拟 react-native
:
// @ts-nocheck
import React from 'react';
import { render } from '@testing-library/react-native';
import { NativeModules } from 'react-native';
import { ChatRoomContainer } from '../../../src/modules/ChatRoom';
// Mock NativeModules
jest.mock('react-native',() => ({
...jest.requireActual('react-native'),Vibration: {
vibrate: jest.fn()
},__esModule: true
}));
describe('MyComponent',() => {
const { debug } = render(<ChatRoomContainer/>);
expect(true).toBeTruthy();
});
});
但随后我收到了大量与不应再使用的旧模块相关的警告:
Warning: CheckBox has been extracted from react-native core and will be removed in a future release. It can Now be installed and imported from '@react-native-community/checkBox' instead of 'react-native'. See https://github.com/react-native-community/react-native-checkBox
Warning: DatePickerIOS has been merged with DatePickerAndroid and will be removed in a future release. It can Now be installed and imported from '@react-native-community/datetimepicker' instead of 'react-native'. See https://github.com/react-native-community/datetimepicker
那么测试 Vibration
的此类功能(如 react-native
)的最佳方法是什么?
提前感谢您的时间!
解决方法
您可以使用库路径模拟 react-native,如下所示:
const mockedVibrate = jest.fn();
jest.mock('react-native/Libraries/Vibration/Vibration',() => ({
vibrate: mockedVibrate,}));
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