不变违规：使用 Jest 的 React Native 上的 Native 模块不能为 null 错误

问题描述

晚上好， 我正在尝试将 Jest 实现到我的 React Native 项目中，但是我遇到了很多问题，我不确定是什么问题。我正在使用 Google Firebase 进行身份验证、React Native 和 React Native 路由器通量。下面是相关代码。我正处于改变一件事的阶段，但根​​据我改变的内容，我要么得到，上面的错误，不能导出，不能导入外部模块。我也尝试过浅渲染。

// Babel
module.exports = {
  presets: ['module:metro-react-native-babel-preset','@babel/preset-env'],plugins: ['@babel/plugin-proposal-class-properties'],};

// package.json
{
  "name": "Projectname","version": "2.3.31","private": true,"scripts": {
    "android": "react-native run-android","ios": "react-native run-ios","start": "react-native start","test": "jest --verbose","lint": "eslint .","bpmn2workflow": "node scripts/bpmn2workflow.js","copy_audio": "node scripts/copy_audio_files.js","sentences": "node scripts/sentences_test.js","env:dev": "node scripts/set-env.js dev","env:stage": "node scripts/set-env.js stage","env:prod": "node scripts/set-env.js prod","create_local_audio_json": "node scripts/create_local_audio_file.js","create_workflows": "node scripts/bpmn2workflow.js && node scripts/create_local_audio_file.js"
  },"dependencies": {
    "@invertase/react-native-apple-authentication": "^1.1.2","@react-native-community/async-storage": "^1.11.0","@react-native-community/audio-toolkit": "^2.0.3","@react-native-community/checkbox": "^0.4.2","@react-native-community/google-signin": "^4.0.3","@react-native-community/masked-view": "^0.1.10","@react-native-community/picker": "^1.6.5","@react-native-community/push-notification-ios": "^1.6.0","@react-native-community/slider": "^3.0.3","@react-native-firebase/analytics": "^11.0.0","@react-native-firebase/app": "^11.0.0","@react-native-firebase/auth": "^11.0.0","@react-native-firebase/crashlytics": "^11.0.0","@react-native-firebase/firestore": "^11.0.0","@react-native-firebase/messaging": "^11.0.0","@react-native-firebase/remote-config": "^11.0.0","@react-navigation/native": "^5.9.3","@react-navigation/stack": "^5.3.9","create-react-class": "^15.6.3","duration": "^0.2.2","firebase": "^7.23.0","firebase-messaging": "^1.0.6","format": "^0.2.2","format-duration": "^1.3.1","fs": "0.0.1-security","lodash": "^4.17.20","moment": "^2.27.0","mp3-duration": "^1.1.0","music-metadata": "^7.0.1","nocache": "^2.1.0","react": "16.13.1","react-lodash": "^0.1.2","react-native": "0.63.4","react-native-background-timer": "^2.2.0","react-native-chart-kit": "^6.4.1","react-native-fs": "^2.16.6","react-native-gesture-handler": "^1.6.1","react-native-iap": "5.1.3","react-native-iaphub": "^6.0.3","react-native-keep-awake": "^4.0.0","react-native-parallax-scroll-view": "^0.21.3","react-native-push-notification": "^6.1.1","react-native-reanimated": "^1.9.0","react-native-router-flux": "^4.2.0","react-native-safe-area-context": "^1.0.2","react-native-screens": "^2.8.0","react-native-simple-radio-button": "^2.7.4","react-native-snap-carousel": "^4.0.0-beta.5","react-native-snap-slider": "^0.3.0","react-native-splash-screen": "^3.2.0","react-native-svg": "^12.1.0","react-native-watch-connectivity": "^0.4.3","react-native-xml2js": "^1.0.3","react-redux": "^7.2.0","redux": "^4.0.5","redux-thunk": "^2.3.0","watchman": "^1.0.0"
  },"devDependencies": {
    "@babel/core": "^7.13.8","@babel/preset-env": "^7.13.12","@babel/runtime": "^7.13.9","@react-native-community/eslint-config": "^0.0.5","eslint": "^7.5.0","eslint-config-airbnb": "^18.2.0","eslint-plugin-import": "^2.22.0","eslint-plugin-jsx-a11y": "^6.3.1","eslint-plugin-react": "^7.20.3","eslint-plugin-react-hooks": "^4.0.8","identity-obj-proxy": "^3.0.0","jest": "^24.9.0","metro-react-native-babel-preset": "^0.58.0","react-test-renderer": "16.11.0"
  },"jest": {
    "preset": "react-native","setupFiles": [
      "./node_modules/react-native-gesture-handler/jestSetup.js"
    ],"transformIgnorePatterns": [
      "/!node_modules\\/lodash-es/"
    ]
}
}

// Simple Component test

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






test('renders correctly',() => {
  const tree = renderer.create(<DeepLink />).toJSON();
  expect(tree).toMatchSnapshot();
});

解决方法

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