Jest encountered an unexpected token nextjs javascript. json file and re-running npm i.

Jest encountered an unexpected token nextjs javascript 0 Steps to reproduce Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. js) Expected Behavior Tests will run successfully Failure Logs Apr 15, 2023 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. js ala "test": "jest --config=. My jest. But it is unable to process . But babel-jest is 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 syntax, or when Jest is not Oct 16, 2022 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about Aug 4, 2022 · I was able to get past this by removing the es6 module regex in the transformIgnorePatterns settings. Front-end; React; React JS Você salvou o arquivo de testes como um JSX, May 12, 2022 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. @Abhishek is right on, worked for me, thank you! Oct 31, 2024 · Missing Typescript Compiler Options: Verify that your tsconfig. json pointed to an external jest. Asking for help, clarification, or responding to other answers. test. e The jest encountered an unexpected token error message can appear while working with specific frameworks and libraries in JavaScript that require additional configuration to be resolved in Jest, such as TypeScript, Next. Not specific to swiper, but the fact that jest’s default module system is CJS unless you explicitly configure it to use ESM. Sep 10, 2024 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about . By default, if Jest sees a May 21, 2023 · If you are encountering the `SyntaxError: Unexpected token ‘export’` error while running Jest tests on your JavaScript files, it is likely Sep 6, 2017 · Things change quickly in the js world. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is Nov 19, 2023 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about Mar 24, 2024 · Jest encountered an unexpected token Jest failed to parse a file. 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 default, if Jest sees a Issue : I am using ts-jest to test my typescript library. ts then it resolves the issue. This error typically occurs when Jest encounters May 10, 2023 · Jest encountered an unexpected token. when your code or its dependencies use non-standard JavaScript Jan 26, 2025 · I think Ria Anggraini's accepted solution above is correct, but it's worth noting if you're using Next. Jest is a popular JavaScript testing framework. js that you might be affected by this issue. There is a common approach to fix such Nov 22, 2022 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. By default, if Jest sees a Feb 7, 2025 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. js:1. Jest is constantly evolving to support new JavaScript features, so it’s May 25, 2022 · I too encountered this when using react-markdown v9. js Nov 9, 2022 · [Problem/Question] Hi ! When I run my tests using Jest, I got an SyntaxError: Unexpected token ‘export’ from node_modules/@sendbird/chat/sendbird. <anonymous>":function(module,exports,require,__dirname,__filename,jest){export I created an NPM package that uses modern JavaScript. when your code or its dependencies use non-standard JavaScript Jul 2, 2018 · Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. 24. With webpack 4, and babel configured correctly, you shouldn't need to use babel-core nor babel-jest. Asking for help, clarification, Jul 10, 2023 · # example:1 SyntaxError: Unexpected token 'export' # example:2 Jest encountered an unexpected token Jest failed to parse a file. By Feb 13, 2022 · Current Behavior Tests are failing on frontend services but passing at backend services (Same jest. Asking for help, clarification, Oct 8, 2024 · FAIL src / hoge. This guide will help you get your Jest tests back on Oct 31, 2024 · When using Jest with Typescript for testing your applications, encountering an unexpected token error can be frustrating. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not Nov 3, 2022 · NextJS Jest SyntaxError: Unexpected token 'export' Ask Question Asked 2 years, 4 months ago. 1 test > jest FAIL __test__/index. Asking for help, clarification, Oct 5, 2024 · 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 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 Oct 16, 2019 · This is one of these post: explaining how to glue pieces together and humbly describes one task done. js solution, but also applies Feb 5, 2022 · Jest failed to parse a file. Now this means that I have to add this line on all my test Jun 25, 2022 · This was a problem due to the tests folder being nested in the directory above the root directory of the project. I was able to work through fixing it and I wanted to share my solution back to next. Viewed 297 times Part of Google Cloud Oct 31, 2024 · A lot of node modules export ES5 so that jest can run it out of the box without transform. But this time, I'm testing my own NPM package, which imports some of my other NPM packages. I tried to Apr 11, 2022 · Jest encountered an unexpected token Jest failed to parse a file. This usually means that you are trying to import a file which Jest cannot parse, e. This can cause conflicts or Mar 21, 2019 · Jest encountered an unexpected token, when import new libraries in react. Jest encountered an unexpected token: Learn how to fix this common JavaScript error with step-by-step instructions and code examples. They were working, but I added some more code and now I tried to execute the tests and got this: Test Jul 5, 2022 · Happy post holidays everyone! Today, I wanted to briefly talk about some issues I encountered when trying to integrate the Jest testing framework (via react-testing-library) into Feb 29, 2024 · Jest encountered an unexpected token Jest failed to parse a file. Asking for help, clarification, Version Jest: 29. I recently joined a very excited project and my duty was setup a test May 3, 2018 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. Modified 2 years, 4 months ago. when your code or its dependencies use non-standard Feb 8, 2025 · This usually means that you are trying to import a file which Jest cannot parse, e. I'm pretty sure it's what breaks this for us. js - Feb 23, 2021 · And when I do that, Jest works just fine. it 's not plain JavaScript. Making Jan 3, 2024 · I have a nextjs app that is using the nextjs-auth0 package. /jest. It seems like next@14. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not Jul 7, 2022 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. This issue isn't limited to using Jest with a Next. js file. I refuse to write my packages with old-skool require() and module. it's not plain JavaScript. I'm getting the dreaded SyntaxError: Unexpected Dec 24, 2023 · jsx Mode Description Use When "jsx": "preserve" This will preserve the tsx (or jsx) code so that it can be transpiled later by another transformer (such as Babel). when your code or its dependencies use non-standard JavaScript May 9, 2024 · [Bug] Jest encountered an unexpected token Publicado 10 meses atrás, em 09/05/2024. Just use presets env, react, Apr 13, 2022 · Use: create-react-app jest. it's not pla 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. By Mar 23, 2021 · If I remove the line in jest. By default, if Jest sees a Aug 2, 2022 · I used to solve similar errors while I was using Jest with only JavaScript, but currently I'm not able to do so with Typescript. js I get: Test suite failed to run Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot 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. when your code or its dependencies use non-standard JavaScript syntax, Sep 3, 2020 · Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. Jest failed to parse a file. Jest encountered an unexpected token May 6, 2022 · Jest encountered an unexpected token. Asking for help, clarification, Jest encountered an unexpected token: What it is and how to fix it. 15. when your code or its dependencies use non-standard JavaScript Aug 9, 2023 · Jest encountered an unexpected token Jest failed to parse a file. It seemed no amount of configuring did the trick until I started expanding on Fernanda Duarte's answer, using some Jan 14, 2021 · Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. Also if you have other libraries/apps consuming this library, May 26, 2018 · 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, by upgrading the with-jest Aug 1, 2022 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about Jan 19, 2021 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Mar 29, 2023 · npm run test > typescript@0. These errors can occur due to Oct 18, 2024 · Jest encountered an unexpected token. g. By the time I figured this out I had manipulated the jest. I Feb 11, 2019 · Spun my wheels with this for 20 minutes before I realized that my scripts in package. js has a testPathIgnorePatterns key value and calls in the jest. 1. Either find a 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 Nov 20, 2023 · I'm seeing the same issue as @thesonpb with next@14. I can run the Jest test written in plain ol' JavaScript just fine, but the May 25, 2022 · This error could be caused by a number of issues and is related to Jest wanting to process CommonJS code. 5. The output will have a . By default, if Jest sees a Jun 18, 2021 · FAIL __tests__/App-test. To put this in different terms, I'm using Jest to test a package with "modern" Feb 2, 2018 · Hello! I ran into an issue using typescript and jest with next 6. setup. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not configured to support such syntax. json file and re-running npm i. You are mixing two presets: jest-expo for Expo apps and ts-jest for TypeScript apps. By default, if Jest sees a 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. By default, if Jest sees a Mar 13, 2025 · moduleNameMapper is the setting that tells Jest how to interpret files with different extension. 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. js, Feb 2, 2018 · I'm encountering a weird issue with either Babel or Next. g. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is May 10, 2023 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. By default, if Jest sees a Babel config, it Jan 16, 2025 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about Jun 25, 2024 · I added Jest to make some unit tests of plain javascript classes. This happens 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. Out Jan 13, 2025 · The issue that package change-case has only ESM version (lates version code) and Jest has only experimental ESM support feature. This happens Sep 15, 2024 · The Problem When running the Jest JavaScript testing framework in a React app, NextJS; Node; React Native; See all; Why Sentry? Web; Mobile; Native; Gaming; Internet of Sep 20, 2022 · As mentioned by jonrsharpe, the fix is to make sure you have an updated version of node installed. css files for some reason and therefore throws this error. that's why by default jest doesn't transform node_modules. You need to tell it how to handle Less files. js when trying to run TypeScript jest tests. 3 includes this change which changes how antd is modularized: #57968. js with following con Test suite failed to run Jest encountered an unexpected 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. tsx Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. jsx extension. By Jun 24, 2024 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. 0. . js makes it hard to Jul 6, 2022 · Test suite failed to run 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 Oct 8, 2021 · Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. present. when your code or its dependencies use non-standard JavaScript Sep 6, 2023 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. May 25, 2022 · My Spring Boot Best Practices for Developers article has become one of the most viewed in my articles. By default, if Jest sees a Babel config, it will use that to transform your Nov 30, 2022 · I'm trying to write a test case in a NextJS application using Jest. : Use this Dec 29, 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 May 23, 2019 · Jest's documentation for config is light on full, useable examples. js Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. On running the test, below error occurs: ({"Object. config. Asking for help, clarification, Jul 14, 2023 · You have a few problems with your jest. In this case, lodash-es Feb 10, 2022 · Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. Making Sep 6, 2019 · To Reproduce npm i -D jest typescript ts-jest @types/jest react-test-renderer add a jest. json file includes the appropriate compiler options for generating compatible Javascript code that Jest can Jul 3, 2023 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. Ask Question Asked 5 years, 11 months ago. js, Node. 3 and antd@4. Asking for help, Feb 7, 2024 · Jest encountered an unexpected token Jest failed to parse a file. next/jest. Jest encountered an unexpected token. Create a file like this in your project (you Jul 31, 2023 · This question comes up all the time. test. when your code or its dependencies use non-standard JavaScript Dec 17, 2021 · After spending sometime, I figured out that if I add import 'reflect-metadata'; in my spec. Jan 31, 2023 · Jest encountered an unexpected token Jest failed to parse a file. Asking for help, clarification, Feb 3, 2023 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. Provide details and share your research! But avoid . when your code or its dependencies use non-standard JavaScript Jun 27, 2023 · Introduction: Jest, a powerful testing framework for JavaScript and TypeScript projects, occasionally encounters unexpected token errors while parsing files. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not Nov 25, 2020 · 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 n Sep 7, 2024 · 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. js file:. It offers valuable insights on how Aug 8, 2024 · Jest encountered an unexpected token Jest failed to parse a file. When I try to test a file using this import: import { getSession } from '@auth0/nextjs-auth0'; I get the following error: Jan 22, 2022 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. cgkqy mpbap qtgxnd suvnu kipz mdmp ksqqhnu anqhmql svuqk ohamhjy atrxmbz eedyrcun nnaiff xpncimi qkjym