用Reest Native开玩笑地测试

Question

您好，我实际上试图通过使用Jest和快照来测试我的组件！当我键入此代码时;它显示有关该模块 react-native-gesture-handler 的错误，该错误与导航有关。这是以下错误：

  TypeError: Cannot read property 'Direction' of undefined
      at Object.<anonymous> (node_modules/react-native-gesture-handler/Directions.js:3:39)

App-test.js

import 'react-native';
import React from 'react';
import Registration from '../routes/Registration';

// Note: test renderer must be required after react-native.
import renderer from 'react-test-renderer';

test('Registration snapShot', () => {
  const snap = renderer.create(
    <Registration/>
  ).toJSON();
  expect(snap).toMatchSnapshot();
})