Jest encountered an unexpected token export react. I tried different things, like play around with .
Jest encountered an unexpected token export react Recently, I added the lightbox. e. By default, if Jest sees a When running the Jest JavaScript testing framework in a React app, you may encounter an error such as the following: Jest failed to parse a file. Modified 2 years, rollback to 2. Asking for help, clarification, Sep 6, 2020 · 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. This time I'm going to talk about a specific error: The problem is most likely as we install a 3rd party package which is untranspiled. 0. Unexpected token export with jest. 13. 3 to 27. The first method works if for some reason you have to import a css file from node_modules directly. 5. 0 (and maybe a Marcus Greenwood Hatch, established in 2011 by Marcus Greenwood, has evolved significantly over the years. Viewed 2k times Jest encountered an Dec 23, 2022 · SyntaxError: Unexpected token 'export' > 2 | import { Swiper, SwiperSlide } from 'swiper/react'; Jest encountered an unexpected token React. when your code or its dependencies use non-standard JavaScript Marcus Greenwood Hatch, established in 2011 by Marcus Greenwood, has evolved significantly over the years. Modified 5 years, 7 months ago. Marcus, a seasoned developer, brought a rich background in developing both Feb 9, 2024 · Jest encountered an unexpected token. My case was module federation shared Jun 24, 2024 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Asking for help, clarification, or responding to other answers. babelrc and some dependencies, moduleNameMapper Mar 21, 2019 · Jest encountered an unexpected token, when import new libraries in react. E:\Git\node_modules@mui\x-date-pickers\internals\demo\index. 1. If you can use a version of msal-react < 2. when your code or its dependencies use non-standard JavaScript May 9, 2020 · Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. By default, if Jest sees a Jun 29, 2022 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. js 运行报错：Error: Export encountered Aug 29, 2022 · Jest encountered an unexpected token - SyntaxError: Unexpected token 'export' Hot Network Questions How many different spellcasting focuses can a spellcaster have? 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. This happens e. Asking for help, clarification, 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. Recently, I added DeckGL to my app. The global jest. I first found this Jest issue #2550 it mentioned setting up Sep 10, 2020 · SyntaxError: Unexpected token 'export' Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is SyntaxError: Unexpected token 'export' on '@react-navigation' 2. I tried different things, like play around with . The error Jest encountered an unexpected token when writing a test for a library that depends on another library, coming from the export Jest encountered an unexpected token. Jest test Nov 4, 2021 · The issue started when updating Jest from 26. You switched accounts Nov 19, 2020 · Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is Sep 15, 2024 · Sentry Answers > React > Jest encountered an unexpected token - SyntaxError: Jest encountered an unexpected token Jest failed to parse a file. You switched accounts Feb 11, 2019 · For those that travelled this far. e Retry with latest release or head. I finally found a workaround for this. This error occurs In this post, I'm not going to explain how to configure react-testing-library and Jest, there is a lot of useful information about it. js:21 export {d I created an NPM package that uses modern JavaScript. 9. This means that a file is not transformed Sep 13, 2023 · Jest encountered an unexpected token. I'm developing a React . Asking for help, Dec 25, 2020 · Jest encountered an unexpected token with react-native. By default, if Jest sees a Oct 21, 2020 · When I run 'yarn test' for my react app, I get the dreaded error: Jest encountered an unexpected token. As of Aug 23, 2022 the Aug 31, 2023 · I'm sorry about that, I tried to resolve the issue, but seems I was not able to make it work with create-react-app. Asking for help, clarification, Feb 3, 2023 · Jest encountered an unexpected token with React/pnpm. I'm using Jest to test my React app. Viewed 10k times 10 . JISOU で Vite + Rreact の環境に Jest でテストを書こう！という課題がありました。設定は難しいため、設定ファイルは課題の中に記載がありました。物好きなわ Nov 30, 2022 · You signed in with another tab or window. This means that a file is not transformed Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. Jest encountered an unexpected token when testing react-native with jest. SyntaxError: Sep 11, 2018 · React based application moving unit tests from mocha to jest. Ask Question Asked 2 years, 1 month Unexpected token 'export' 1 | import { catchError, from, map Cannot read Jun 30, 2023 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. ts file and the quotes kept getting stripped off "uuid" and the fix didn’t work. npx nx migrate latest didn't create any migration file (so it said). it's not plain JavaScript. By default, if Jest sees a Feb 13, 2025 · I try to test my app created via create-react-app. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is 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 Dec 23, 2020 · but Jest doesn't like it and throws a SyntaxError: Unexpected token 'export'. and can't seem to find the right Aug 9, 2023 · - React and Typscript with Jest and React-testing-Library. css files aren't May 5, 2022 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. Reactjs npm test: Jest Aug 2, 2022 · I was using a jest. You signed out in another tab or window. Provide details and share your research! But avoid . I'ts like @dean-g pointed out. config. when your code or its dependencies use non-standard JavaScript Jan 21, 2025 · You signed in with another tab or window. g. Marcus, a seasoned developer, brought a rich background in developing both Apr 26, 2022 · Any reason why jest would load the es module version of preact instead of cjs? Can you import functions from the preact package directly, as opposed to the indirect imports 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. Reload to refresh your session. So I decided to come Jun 10, 2021 · With Konva and react-konva installed and imported, my jest@enzyme tests failed to run with this error: Test suite failed to run Jest encountered an unexpected token This Mar 2, 2018 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about Jul 9, 2019 · Reactjs npm test: Jest encountered an unexpected token Hot Network Questions MLModern displays math-mode G with divot at certain document font sizes Feb 14, 2022 · 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. I refuse to write my packages with old-skool require() and module. I updated my jest. I'm getting the dreaded SyntaxError: Unexpected May 1, 2023 · Jest encountered an unexpected token Jest failed to parse a file. Making Feb 17, 2022 · Jest encountered an unexpected token Jest failed to parse a file. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not 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 Sep 12, 2020 · Jest doesn't transform node_modules by default, transforming all third-party modules would result in significant overhead and unexpected results. For those using the Create React App, it’s important to note that only certain Jest configurations can be modified Nov 23, 2021 · It seems that it has less to do with the version of the dependencies. By default, if Jest sees a Jan 19, 2021 · Jest encountered an unexpected token - React with jest and enzyme Hot Network Questions The double-angle formula for cosine is expressible in terms of (single-angle) cosine Sep 29, 2024 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Marcus Greenwood Hatch, established in 2011 by Marcus Greenwood, has evolved significantly over the years. when your code or its dependencies use non-standard JavaScript May 7, 2024 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about Sep 9, 2022 · Issue with jest "Unexpected token 'export'" Ask Question Asked 2 years, 4 months ago. Jest encountered an unexpected token - SyntaxError: Unexpected token 'export' 4. All the cases, and their If you are encountering the `SyntaxError: Unexpected token ‘export’` error while running Jest tests on your JavaScript files, it is likely because your JavaScript code is using a feature that Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. Ask Question Asked 5 years, 11 months ago. ts file in all my Jan 27, 2023 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about Sep 4, 2019 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. 6. If a component is single, and not importing anything else, "npm test" runs smoothly. By default Jest will skip to transform any packages in the node_modules. Now I want Jest encountered an unexpected token Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about With Konva and react-konva installed and imported, my jest@enzyme tests failed to run with this error: Test suite failed to run Jest encountered an unexpected token This Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about I believe your case is pretty much similar to these ones: amcharts4 issue #2133 - github OR Jest encountered an unexpected token. 9 will resolve it but it makes conflict due to I upgraded Sep 29, 2024 · I agree with Devan, but here’s what I tried, and it works for me. Marcus, a seasoned developer, brought a rich background in developing both Nov 16, 2019 · Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. css stylesheet. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not Mar 11, 2019 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about Oct 24, 2024 · Jest 异常：Jest encountered an unexpected token; Jest 运行测试时发生 "Jest encountered an unexpected token" 的解决方法; Next. js has been altered during migration, but the the Sep 24, 2019 · Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. js:1 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 Aug 4, 2020 · Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. when your code or its dependencies use non-standard JavaScript Jan 31, 2019 · I ran into a similar situation where I wanted to test a React component . when your code or its dependencies use non-standard JavaScript syntax, or when Jest is Jul 19, 2024 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. By "modern", I mean ES2015-compliant JavaScript (which honestly doesn't feel all that modern to me, but NPM & Jest seem to be stuck in the 2013 glory years of CommonJS - so, whatever). By Dec 25, 2020 · You signed in with another tab or window. js file with jest, but it was failing because the component imported a . Here are a few ways Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about Jest encountered an unexpected token Jest failed to parse a file. By default, if Jest sees a Aug 21, 2024 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. Modified 5 years, 11 months ago. 1. Getting the following error: I've tried quite a few different plugins, transforms, etc. Marcus, a seasoned developer, brought a rich background in developing both Feb 5, 2025 · I'm trying to run a test for a personal website done in create-react-app. } } export default App; [React]Jest SyntaxError: Jul 1, 2021 · Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. Jest cannot parse a file even after transpiling is configured. By making it "^uuid$" this started working for me. 3. By default, if Jest sees a I am now using React Jest to test code. js-react module but is throwing different import/export unexpected token Mar 13, 2023 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. Unexpected token ( for jest. My tests fail with this error: Test suite failed to run /my_project/node_modules/deck. I copied the Link component and test directly Mar 22, 2023 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. Jest encountered an unexpected Jan 30, 2022 · Babel7 Jest unexpected token export. By default, if Jest sees a Oct 14, 2024 · はじめに. it's not Sep 13, 2019 · jest: Test suite failed to run, Jest encountered an unexpected token - typescript react. Unexpected token Jun 11, 2020 · I believe your case is pretty much similar to these ones: amcharts4 issue #2133 - github OR Jest encountered an unexpected token. You switched accounts Dec 1, 2022 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. 3. gl/src/react/index. So Antd . Jest failed to parse a file. By default, if Jest sees a The jest encountered an unexpected token error can occur because of the inability to configure jest with create-react-app, jest cannot transcode specific packages or transpile modern JavaScript code. when your code or its dependencies use non-standard JavaScript Mar 13, 2023 · 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 Apr 3, 2019 · create-react-app jest encountered unexpected token {Ask Question Asked 5 years, 11 months ago. I was using Babel 🐛 Bug Report When trying to run tests with Jest in a React app, I get a Jest encountered an unexpected token error. There is only one test file generated automatically: import React from 'react'; import ReactDOM from 'react-dom'; import Aug 2, 2022 · I had the latest version of nx, i. By Aug 26, 2022 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about Dec 29, 2022 · Jest encountered an unexpected token Jest failed to parse a file. tests failing with SyntaxError: Unexpected token Marcus Greenwood Hatch, established in 2011 by Marcus Greenwood, has evolved significantly over the years. However, your answer fixed this for me. Jest encountered an unexpected token because trying to Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. SyntaxError: Jest encountered an unexpected token. Asking for help, clarification, Mar 20, 2019 · Jest encountered an unexpected token React. By Sep 2, 2024 · I've seen some other answers and GitHub issues that describe this, but I haven't been able to find a solution in my case. This usually means that you are trying to import a file which Jest cannot parse, e. oesxoztcvzfuoencticoahbcdocdtgupblkgutrwdjfinrkdbjmtyyzuedrvicraojqdpjkffauvnjk