I created a new React Native project and used Jest testing, it goes very well. But when I try it in an existing app it couldn't work, instead it gave me the following error.I suspect it is a configuration error that caused this problem:
Error
SyntaxError: Unexpected token 'export'
4 | //Import React
5 | import React, {useEffect, useState} from 'react';
> 6 | import { StackActions, NavigationActions } from 'react-navigation';
| ^
7 | import {useSelector, useDispatch} from 'react-redux';
8 | import {changeVoucherCategory} from '../../../actions';
9 | //Import all required component
at Runtime.createScriptFromCode (node_modules/jest-runtime/build/index.js:1350:14)
at Object.<anonymous> (src/Screen/drawerScreens/Profile/ProfileScreen.js:6:1)
Below are some of my files
package.json
{
"private": true,
"scripts": {
"android": "react-native run-android",
"ios": "react-native run-ios",
"web": "react-scripts start",
"start": "react-native start",
"test": "jest",
"lint": "eslint .",
"build:ios": "react-native bundle --entry-file='index.ios.js' --bundle-output='./ios/IGBFAMILY/main.jsbundle' --dev=false --platform='ios' --assets-dest='./ios'"
},
"dependencies": {
"@babel/runtime": "^7.14.0",
"@react-native-community/async-storage": "^1.12.1",
"@react-native-community/cli-platform-ios": "^4.13.0",
"@react-native-community/masked-view": "^0.1.10",
"@react-native-community/netinfo": "^6.0.0",
"@react-navigation/bottom-tabs": "^5.11.2",
"@react-navigation/material-top-tabs": "^5.3.10",
"@react-navigation/native": "^5.8.10",
"@react-navigation/stack": "^5.12.8",
"@sentry/react-native": "^2.3.0",
"aws-sdk": "^2.897.0",
"babel-preset-react-app": "^7.0.0",
"base64-arraybuffer": "^0.2.0",
"jest-cli": "^26.6.3",
"json-groupby": "^1.1.0",
"moment": "^2.29.1",
"query-string": "^7.0.0",
"react": "16.13.1",
"react-dom": "^16.13.1",
"react-native": "^0.64.0",
"react-native-barcode-mask": "^1.2.4",
"react-native-base64": "^0.2.1",
"react-native-camera": "^3.43.3",
"react-native-checkbox-lite": "^1.0.2",
"react-native-countdown-component": "^2.7.1",
"react-native-datepicker": "^1.7.2",
"react-native-device-info": "^8.1.3",
"react-native-elements": "^3.3.1",
"react-native-firebase": "^5.6.0",
"react-native-flatlist-slider": "^1.0.5",
"react-native-fs": "^2.17.0",
"react-native-gesture-handler": "^1.3.0",
"react-native-material-tabs": "^4.1.2",
"react-native-mime-types": "^2.3.0",
"react-native-modal-dropdown": "^1.0.0",
"react-native-modal-overlay": "^1.3.1",
"react-native-passmeter": "0.0.5",
"react-native-phone-number-input": "^2.0.0",
"react-native-qrcode-svg": "^6.0.6",
"react-native-reanimated": "^2.1.0",
"react-native-safe-area-context": "^3.1.9",
"react-native-screens": "^2.16.1",
"react-native-segmented-control-tab": "^3.4.1",
"react-native-sha256": "^1.3.6",
"react-native-snap-carousel": "^3.9.1",
"react-native-sqlite-storage": "^5.0.0",
"react-native-svg": "^12.1.0",
"react-native-tab-view": "^2.16.0",
"react-native-ui-xg": "0.0.6",
"react-native-vector-icons": "^7.1.0",
"react-native-webview": "^11.4.0",
"react-navigation": "^4.4.2",
"react-navigation-drawer": "^2.5.2",
"react-navigation-stack": "^2.8.4",
"react-redux": "^7.2.3",
"react-scripts": "^4.0.3",
"redux": "^4.0.5",
"redux-thunk": "^2.3.0",
"url": "^0.11.0"
},
"devDependencies": {
"@babel/core": "7.11.6",
"@babel/preset-env": "^7.14.1",
"@babel/runtime": "^7.14.0",
"@react-native-community/eslint-config": "1.1.0",
"babel-jest": "^26.6.3",
"eslint": "6.8.0",
"jest": "^26.6.3",
"metro-react-native-babel-preset": "0.59.0",
"react-test-renderer": "^16.14.0"
},
"jest": {
"preset": "react-native",
"transformIgnorePatterns": [
"node_modules/(?!(jest-)?react-native)",
"node_modules/?!(react-navigation)"
]
}
}
babel.config.js
module.exports = {
presets: ['module:metro-react-native-babel-preset',"@babel/react", "@babel/env"],
};
App-test.js
import 'react-native';
import React from 'react';
import renderer from 'react-test-renderer';
import App from '../src/App';
it('renders correctly', () => {
renderer.create(<App />);
});
I had tried many accepted answers on StackOverflow and internet but no luck on solving this problem.These are some of the links I can remember of, there might be a little unrelated because I faced the same problem with other modules apart from @react-navigation:
https://stackoverflow.com/a/59802557/14792325
https://stackoverflow.com/a/54463740/14792325
https://stackoverflow.com/a/55803188/14792325
https://stackoverflow.com/a/43197503/14792325
https://lifesaver.codes/answer/react-native-syntaxerror-unexpected-token-import
Can anyone help me to identify my mistakes? Thanks a lot.
