jest 配置在更新到 26.x

问题描述

我不知道为什么这突然不起作用，但这是我的 jest.config.js：

module.exports = {
  preset: 'react-native',verbose: true,moduleFileExtensions: ['ts','tsx','js','jsx','json','node'],setupFiles: ['./jestSetup.js'],transformIgnorePatterns: [
    'node_modules/(?!(jest-)?react-native|@react-native-community|@react-navigation)',],moduleNameMapper: {
    '.+\\.(css|styl|less|sass|scss|png|jpg|ttf|woff|woff2)$': 'jest-transform-stub',},};

还有我的 jestSetup.js：

import 'react-native-gesture-handler/jestSetup';
import '@testing-library/jest-native/extend-expect';
import mockAsyncStorage from '@react-native-async-storage/async-storage/jest/async-storage-mock';

beforeAll(() => {
  //@ts-ignore
  global.__reanimatedWorkletInit = jest.fn();
});

jest.mock('react-native-share',() => ({
  default: jest.fn(),}));

jest.mock('@react-native-async-storage/async-storage',() => mockAsyncStorage);

jest.mock('react-native-reanimated',() => {
  const Reanimated = require('react-native-reanimated/mock');

  Reanimated.default.call = () => {};

  Reanimated.useSharedValue = jest.fn;
  Reanimated.useAnimatedStyle = jest.fn;
  return Reanimated;
});

jest.mock('react-native/Libraries/Animated/src/NativeAnimatedHelper');

jest.mock('react-native-gesture-handler',() =>
  jest.requireActual('../node_modules/react-native-gesture-handler/jestSetup')
);

jest.mock('react-native-intercom',() => {},{ virtual: true });

jest.mock('@react-native-async-storage/async-storage',() =>
  require('@react-native-async-storage/async-storage/jest/async-storage-mock')
);

jest.mock('react-native-geolocation-service',() => ({
  addListener: jest.fn(),getCurrentPosition: jest.fn(),removeListeners: jest.fn(),requestAuthorization: jest.fn(),setConfiguration: jest.fn(),startObserving: jest.fn(),stopObserving: jest.fn(),}));

export const mockedNavigate = jest.fn();

jest.mock('@react-navigation/native',() => ({
  ...jest.requireActual('@react-navigation/native'),useNavigation: () => ({
    navigate: mockedNavigate,goBack: jest.fn(),}),useRoute: () => ({
    params: {
      publicToken: 'testToken',}));

jest.mock('react-native-safe-area-context',() => {
  const React = require('react');
  class MockSafeAreaProvider extends React.Component {
    render() {
      const { children } = this.props;
      return React.createElement('SafeAreaProvider',this.props,children);
    }
  }
  return {
    useSafeAreaInsets: () => ({ top: 1,right: 2,bottom: 3,left: 4 }),SafeAreaProvider: MockSafeAreaProvider,};
});

和我的 babel.config.js：

module.exports = {
  presets: [
    'module:metro-react-native-babel-preset',['@babel/preset-env',{ targets: { node: 'current' } }],'@babel/preset-typescript',plugins: [
    'react-native-reanimated/plugin',['relay',{ artifactDirectory: './src/__generated__' }],[
      'transform-es2015-modules-commonjs',{
        allowTopLevelThis: true,};

我已经正确查看了文档，但无法弄清楚这是如何突然失败的，以下是完整的错误消息：

node_modules/@react-native/polyfills/error-guard.js:14
    type ErrorHandler = (error: mixed,isFatal: boolean) => void;
         ^^^^^^^^^^^^

    SyntaxError: Unexpected identifier

      at Runtime.createScriptFromCode (node_modules/jest-runtime/build/index.js:1350:14)
      at Object.<anonymous> (node_modules/react-native/jest/setup.js:453:6)

解决方法

找到解决方案 here。将 @react-native 添加到您的 Jest 配置中。如：

transformIgnorePatterns: [
  'node_modules/(?!@react-native|react-native)'
],