Jest encountered an unexpected token nextjs javascript I am trying to test with Jest, but got an error: Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. I was using Babel with Webpack. Choosing the Right Transformer You can use babel-jest or ts-jest as a transformer: Using babel-jest as the Transformer You should use babel-jest module. js Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. js (only used by jest) May 3, 2018 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. Oct 30, 2023 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. This guide will help you get your Jest tests back on track in no time! Oct 24, 2024 · 在使用 Jest 对 JavaScript 代码进行测试时，有时会遇到错误信息："Jest encountered an unexpected token"。 这种错误会让我们的测试无法正常运行，导致我们不能从测试中得到预期的结果。 本文将介绍这个错误的原因，并提供解决方法。 在进行 JavaScript 代码测试时，Jest 通常使用 Babel 来编译我们编写的代码。 Babel 是一个 JavaScript 编译器，可以将最新的 ECMAScript 语法转换成可以在目标环境（通常是浏览器或 Node. Sometimes, the… Aug 9, 2021 · Test suite failed to run Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. Feb 20, 2025 · Jest encountered an unexpected token Jest failed to parse a file. Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. 43. May 22, 2022 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. 0 Steps to reproduce Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. See full list on dev. 1 test > jest FAIL __test__/index. exports = { transform: { '^. Jest failed to parse a file. Step 2: Configuration. Apr 15, 2023 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. /jest. css files for some reason and therefore throws this error. Details: Mar 13, 2023 · Jest encountered an unexpected token - SyntaxError: Unexpected token 'export' 1 Cannot use import statement outside a module - jest + nextj. Jul 14, 2023 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. This happens e. Mar 11, 2019 · The only way I could get this to work for myself was to add: { "targets": { "node": "current" } } So that my presets read: Sep 13, 2019 · javascript; node. Sep 20, 2022 · I installed jest with the following command on my next js project npm i --save-dev jest @testing-library/react @testing-library/jest-dom jest-environment-jsdom then added jest. Dec 28, 2022 · Jest encountered an unexpected token Jest failed to parse a file. js application that uses the next/jest configurator to set up jest in a good way for Next projects. Feb 7, 2025 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. { Jest failed to parse a file. OS: [ ] Windows [x] MacOS [ ] Linux Platform: [x] iOS [ ] Android SDK: [x] @sentry/react-native (>= 1. 5. ts file and the quotes kept getting stripped off "uuid" and the fix didn’t work. The import will then import the mocked version of the Sentry module which bypasses actually importing the Sentry package. js', in your jest. Save this config and re-run your tests, and you will no longer get the unexpected token message from Jest. +\\. Next. Mar 21, 2019 · @Abhishek is right on, worked for me, thank you! :) I had to create a jest. e. x of jest so I think since I'm just now upgrading from 27. Asking for help, clarification, or responding to other answers. json . Jul 6, 2022 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. Dec 11, 2021 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. Aug 1, 2022 · ツアー はやわかりツアーはこちらから ヘルプセンター どんな質問でもお答えします Aug 4, 2020 · Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. ts Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. Provide details and share your research! But avoid …. x I'll stick with this solution for now. Nov 3, 2023 · If I add the jest. By default, Jest runs all tests and produces all errors into the console upon completion. Setting bail to true is the same as setting bail to 1. js for create-react-app without ejecting it, thought might help someone, here is a script to dump it to screen, then follow instructions above: Aug 1, 2022 · Add a transform for js which uses babel-jest-- Jest encountered an unexpected token - SyntaxError: Unexpected token 'export' Update my tsconfig to output commonJS modules Update my tsconfig to allowJs:true and update my jest transforms to parse JS with ts-jest Jest encountered an unexpected token. 1. Jun 27, 2023 · Understanding the Issue: When Jest encounters unexpected token errors, it indicates either the presence of non-standard JavaScript syntax or an insufficient Jest configuration. Sep 7, 2021 · Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. js --silent",. Recently we added the @piwikpro /next-piwik-pro package to our app, as recommended by the Piwik docs. I recommend using ts-jest for simplicity. js and TypeScript when using createUserWithEmailAndPassword in firebase/auth 64 Jest encountered an unexpected token Oct 31, 2024 · Writing to Files with TypeScript: A Comprehensive Guide. None of the popular solutions here were working for me either. Mar 2, 2023 · Jest encountered an unexpected token Jest failed to parse a file. Out of the box Jest supp Jul 3, 2023 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. Unfortunately, when I ran the test suite I got the following error: SyntaxError: C:\\ May 12, 2022 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. These errors are Issue : I am using ts-jest to test my typescript library. when your code or its dependencies use non-standard Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. But it is unable to process . May 3, 2022 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. Unexpected token, expected ";" jest + enzyme in react native Hot Network Questions Deriving the density of spherical distribution from its characteristic function Aug 25, 2019 · Test suite failed to run Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. 0 test > jest --no-cache FAIL test/test. By default, if Jest sees a Babel config, it will use that to transform your files, ignoring Dec 26, 2023 · Marcus Greenwood Hatch, established in 2011 by Marcus Greenwood, has evolved significantly over the years. 0) [ ] react-native-sentry (<= 0. 前提. When I try to test a file using this import: import { getSession } from '@auth0/nextjs-auth0'; I get the following error: Jest failed to parse a file. Sep 18, 2024 · Jest encountered an unexpected token Jest failed to parse a file. it 's not plain JavaScript. Mar 9, 2022 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not configured to support such syntax. When I run jest, I get the following error: Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. This usually means that you are trying to import a file which Jest cannot parse, e. now jest 28+ will load in the browser esm code, but jest esm support is not fully supported. Not able to run Jest test for React component with WebStorm. js file The jest encountered an unexpected token can be caused by the inability to configure Jest with creat-react-app, Jest not being able to transform packages, inability to transpile modern JavaScript, circular imports when mocking modules, Jest not able to transform the dependency, and incompatible dependencies after the update. json file with the below code TL;DR 我的Jest测试崩溃了，因为 SyntaxError: Cannot use import statement outside a module 因为node_module使用import语句。如何修复此错误？ 上下文 我正在编写一个Next. Oct 11, 2022 · You signed in with another tab or window. Aug 21, 2023 · npm run test > [email protected] test > npm run unit > [email protected] unit > NODE_OPTIONS=--experimental-vm-modules jest --config jest. Jan 23, 2024 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. js docs, but still same issue. Feb 29, 2024 · Jest encountered an unexpected token Jest failed to parse a file. js Test suite failed to run Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. tsx Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. So you have to mock all non-JavaScript files you import. 0. js files. By making it "^uuid$" this started working for me. Aug 21, 2024 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. Jul 2, 2018 · Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. Dec 29, 2022 · Jest encountered an unexpected token Jest failed to parse a file. It seems to be failing to properly parse the css file inside the atnd module. Apr 22, 2019 · Test suite failed to run Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. ts Test suite failed to run Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. js is straightforward: module. Nov 30, 2022 · You signed in with another tab or window. js: Jest encountered an unexpected token. mock call, the tests pass for me again. Jan 30, 2020 · Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. You signed out in another tab or window. Jan 3, 2024 · I have a nextjs app that is using the nextjs-auth0 package. Jest encountered an unexpected token Jest failed to parse a file. I have a photo gallery app and whenever I click on an image, a modal pops up with an image. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is n Jun 27, 2023 · Understanding the Issue: When Jest encounters unexpected token errors, it indicates either the presence of non-standard JavaScript syntax or an insufficient Jest configuration. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not to run Jest encountered an unexpected token Jest Feb 3, 2023 · We have Next. Feb 2, 2018 · I'm encountering a weird issue with either Babel or Next. js file with jest, but it was failing because the component imported a . js. Jan 31, 2023 · Jest encountered an unexpected token Jest failed to parse a file. js project using TypeScript and for testing I use Jest and React Testing Lib. I recently joined a very excited… Sep 3, 2020 · Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. Jan 25, 2017 · Have a look at the Jest documentation for Webpack integration. By default, if Jest sees a Babel config, it will use that to transform your files, ignoring "node_modules". The main app still uses the . Jest's documentation for config is light on full, useable examples. Jan 19, 2021 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. May 29, 2023 · Version Jest: 29. js）中运行的代码。 Jul 5, 2022 · The fact that Jest is calling “export” an unexpected token means that Jest is viewing this file as a commonjs package and it should be viewing it as an ESM package. Feb 11, 2019 · Spun my wheels with this for 20 minutes before I realized that my scripts in package. However, I encounter a SyntaxError: Cannot use import statement outside a module for components Mar 14, 2022 · Jest encountered an unexpected token Jest failed to parse a file. ts FAIL tests/unit/get. Oct 1, 2022 · * before jest didn't fully support package exports and would load in common js code (typically via main field). Sep 6, 2019 · Test suite failed to run Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. Jan 14, 2021 · Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. selenium. My jest. May 23, 2019 · @James yeah, when I comment-out the styles import everything runs fine. Moved the moduleNameMapper config to that file and then it worked. Jest encountered an unexpected token. How can I solve this? Nov 30, 2018 · Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. 2) SDK version: We could use babel-jest or ts-jest. I fixed it by just following the getting started instructions for Jest as well as ts-jest. g. Crashing due to dot ( . json pointed to an external jest. it's not pla FAIL __tests__/HomePage. Jan 22, 2022 · This happens e. test. spec. Oct 8, 2024 · FAIL src / hoge. css$': '<rootDir>/emptyModule. config. when your code or its dependencies use non- standard JavaScript syntax, or May 31, 2023 · Next. babelrc that wasn't getting picked up by jest no matter what I did to it. Jul 5, 2022 · The fact that Jest is calling “export” an unexpected token means that Jest is viewing this file as a commonjs package and it should be viewing it as an ESM package. Option 1: create a jest configration file jest. You switched accounts on another tab or window. Mar 29, 2023 · npm run test > typescript@0. exports = {preset: 'ts-jest', testEnvironment: 'node',}; Long story short, I ran: - yarn add --dev jest typescript - yarn add --dev ts-jest @types/jest May 10, 2023 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. Jest vs React: module exports and "Jest encountered an unexpected token" 0. Sep 25, 2019 · I have a test for a test for a TSX file written in a JSX file which fails to run due to unexpected token: Test suite failed to run Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. Jan 31, 2019 · I ran into a similar situation where I wanted to test a React component . Marcus, a seasoned developer, brought a rich background in developing both B2B and consumer software for a diverse range of organizations, including hedge funds and web agencies. Screenshots If applicable, add screenshots to help explain your problem. {color: red} ) before a className in CSS files. Oct 16, 2019 · This is one of these post: explaining how to glue pieces together and humbly describes one task done. Nov 20, 2023 · You signed in with another tab or window. to Jest encountered an unexpected token: Learn how to fix this common JavaScript error with step-by-step instructions and code examples. I can run the Jest test written in plain ol' JavaScript just fine, but the Footer. Steps I took: Install jest, ts-jest, babel-jest, and @babel/preset-env: npm i jest ts-jest babel-jest @babel/preset-env Add babel. The bail config option can be used here to have Jest stop running tests after n failures. May 23, 2020 · Jest encountered an unexpected token. Mar 2, 2021 · I'm using Typescript and trying to test my code with Jest, and I made a type casting on a class so I can mock it. I had an issue in which my unit tests were running just fine on my machine but failing on jenkins, your solution caused jest to give me a warning saying that globals are deprecated and then the tests took forever, I removed the globals and ended up with: Sep 10, 2024 · Expected behavior Test run on the plugin as successfully as is doing on CLI. Aug 2, 2022 · I was using a jest. Nov 29, 2023 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. rew: [Import SQL into Fly. jsプロジェクトでのJestでのテスト実行. Aug 9, 2023 · Jest encountered an unexpected token Jest failed to parse a file. However, while running npm i, I noticed this warning: Oct 5, 2024 · Jest encountered an unexpected token with Next. Jan 27, 2025 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. Reload to refresh your session. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not configured to support such Aug 23, 2022 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. As of Aug 23, 2022 the latest version of uuid is still beta and the linked not above indicates it was only tested with the beta 29. jsのプロジェクトをcreate-next-appで作成し、nanoidというライブラリをインストールしてJestでテストを実行したところ、SyntaxError: Unexpected token 'export' というエラーが出ました。 I am working on a Next. The problem is that Jest can’t work with other stuff than JavaScript. Trying to get babel-jest working (see earlier comment^ ), but even this is a tad confusing. Sep 6, 2020 · Fix "Jest encountered an unexpected token" with "create-react-app" # jest # testing # react # javascript Here is one of the most popular question which is related to testing with jest for repo setup with create-react-app as I've seen in stackoverflow community. . js and TypeScript when using createUserWithEmailAndPassword in firebase/auth 3 VS Code auto import using require instead of importing ES Module in a React Project Sep 5, 2018 · Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. Jan 27, 2017 · I am running a jest test which depends on the "antd" node module. babelrc as this overrides babel. Out of the box Jest supports Babel, which will be used to transform your files into valid JS based on your Babel configuration. These errors May 25, 2022 · This error could be caused by a number of issues and is related to Jest wanting to process CommonJS code. (ts|tsx)$': 'ts-jest', }, }; Apr 11, 2022 · Jest encountered an unexpected token Jest failed to parse a file. Jun 25, 2024 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. Aug 17, 2020 · Test suite failed to run Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. Jan 13, 2023 · FAIL ***. Feb 10, 2022 · Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. Step 1: installation: npm i -D ts-jest @types/jest or yarn add --dev ts-jest @types/jest. json file and re-running npm i. The easiest way is to configure a moduleNameMapper in your Jest configuration. 75. 5. js; typescript; jestjs; Test suite failed to run, Jest encountered an unexpected token - typescript react Unexpected token ( for jest. Learn how to write to files using TypeScript, including best practices and examples for working with JSON and CSV files. Oct 30, 2019 · I had a large . Jun 18, 2021 · FAIL __tests__/App-test. css stylesheet. SyntaxError: Unexpected identifier. module. By default, if Jest sees a Babel config, it will use that to Feb 5, 2022 · Jest failed to parse a file. Feb 13, 2024 · FAIL src/utils/html-to-markdown. Mar 21, 2024 · Jest encountered an unexpected token The screenshot has more details. May 21, 2023 · Introduction In modern web applications, you’ll often find yourself needing to make several API calls to fetch or send data. Importing React with Jest. Feb 15, 2023 · Jest encountered an unexpected token Jest failed to parse a file. Here is a potential solution that worked for me: Include the following line: '\\. test. Sep 12, 2019 · vue项目内有一个分享功能，但是这个分享出去的页面打开会非常慢，所以就想到了单独写了一套H5页面专门用于手机端打开，然后在这个vue项目的分享页面初始化函数里面加一个判断终端是否为移动端，如果是就再做一次跳转，到这个单独的H5页面上去，这样就不会去加载vue框架，打开速度会更快。 The Problem When running the Jest JavaScript testing framework in a NextJS; Node; React Native Jest encountered an unexpected token Jest failed to parse a Oct 31, 2023 · This happens e. Sep 6, 2023 · Jest failed to parse a file. it's not plain JavaScript. Jun 20, 2020 · Test suite failed to run Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. Jul 22, 2019 · FAIL app/tests/master. * In this case we will tell jest to load in the common js code regardless of environment. js when trying to run TypeScript jest tests. js Apr 13, 2022 · Use: create-react-app jest. Oct 3, 2021 · I am trying to test my react component with jest but when I try to run it, it's giving me this error: Jest encountered an unexpected token Jest failed to parse a file. May 26, 2021 · 💥 Regression Report > test@1. Embracing modern JavaScript modules with tools like Jest and Babel is essential for developing scalable, maintainable applications. Jun 25, 2021 · Jest encountered an unexpected token Jest failed to parse a file. io Postgres] ffwd: [Deploy Astro to Gitlab Pages] Jest encountered an unexpected token Jest failed to parse a file. Jul 10, 2023 · # example:1 SyntaxError: Unexpected token 'export' # example:2 Jest encountered an unexpected token Jest failed to parse a file. Mar 24, 2024 · Jest encountered an unexpected token Jest failed to parse a file. Dec 24, 2023 · You can do so by checking for the following configurations: You're Using the Right Transformer ; You're Using the Right Jest Testing Environment ; You're Using the Right " jsx " Mode in tsconfig. tsx file fails with an unexpected token import m I had this same issue, and jest --no-cache didn't fix it, but what /did/ fix it was removing both my node_modules folder and my package-lock. when your code or its dependencies use non-standard Nov 22, 2022 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. Aug 18, 2024 · Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. js应用程序，使用Jest作为我的测试运行程序，使用Magic进行身份验证。为了在TypeScript中运行我的Jest测试，我安装了 Jul 11, 2024 · Conclusion: Embracing Modern JavaScript Modules with Jest and Babel. Jul 16, 2020 · Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. g. Nov 19, 2023 · Jest encountered an unexpected token with Next. cacheDirectory [string] Default: "/tmp/<path>" The directory where Jest should store its cached dependency Sep 16, 2022 · This could be a temporary workaround until babel configs are fixed. Aug 8, 2024 · Jest encountered an unexpected token Jest failed to parse a file. exports = { env: { test: { presets: [ [ '@babel/preset-env', { modules: 'commonjs', debug: false } ], '@babel/preset-flow', '@babel/preset-react' ], plugins export function flatten (target, opts) { ^^^^^ SyntaxError: Unexpected token 'export' I made sure my jest was properly installed and set up, as per Next. May 24, 2022 · FAIL __tests__/index. js ala "test": "jest --config=. May 25, 2022 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. Understanding how to configure these tools to work with ES Modules can save developers significant time and frustration. wsp huhoast zjcxf ugmc ysxa lyt dke yzol nkjrr yjgpo nrdfz yulvyb yhqe dphnm bkhzwl