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  Jest encountered an unexpected token react native github Jest encountered an Do you want to request a feature or report a bug? Report a bug What is the current behavior? I am using the same testing setup in several projects right now, all from my boilerplate. 0 moves to native ES modules, and so ReactQuill did too. Jest encountered an unexpected token ReactJS. Provide details and share your research! But avoid . export function flatten (target, opts) { ^^^^^ SyntaxError: Unexpected token 'export' I made sure my jest was properly installed and set up, as per Next. Using transformIgnorePatte Hello there 👋 this issue doesn't have a repro (which means, a react-native init-ed project with the minimal changes that leads to creating the same issue you are reporting). json for common issues Check Expo config for common issues Check native tooling versions Check if the project meets version requirements for submission to app stores Skylerdw changed the title Jest encountered an unexpected token Jest encountered an unexpected token - "import *" Jan 27, 2021. 55. I'm not sure if any other required changes would be needed within Jest in order to support this. This usually means that you are trying to import a file which Jest cannot parse, e. Tests fail when executed due to unexpected react-dnd syntax: Relevant Package Versions / Background. Essentially, you need to add this to your Jest configuration: You signed in with another tab or window. spec. By default, if Jes Oof, so: when I do the steps at the top using npm, it still fails the same way. 4. Out of the box Jest supports Babel, which will be used Depending upon your setup, you might see the error on the first line of the code file or you might see it when the code tries to process JSX. it's not plain JavaScript. However, if I attempt to run the te Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. I saw it on line 1, because line 1 is almost always occupied by an import statement - Jest encountered an unexpected token Jest failed to parse a file. Jest encountered an unexpected token with react-native. With 9. 🐛 Bug Report I am currently running into an issue where a jest test is breaking because I'm importing a package in another repo I have created in my package. Jest encountered an unexpected token inside ts-jest/node_modules/jest-util Hi all, I&#39;m trying run jest using ts-jest, but I&#39;m running into the following error: Jest encountered an unexpected I have the same issue. I am using @microsoft/applicationinsights-react-native and when running my tests I am getting this: Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. My quick workaround was to copy all files from the node_modules\react-svg-pan-zoom\build-es folder into my project\src\components\svg folder. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Jest encountered an unexpected token Jest failed to parse a file. App bootstrapped with "create react app" Jest encountered an unexpected token Jest failed to parse a file. However, while running npm i, 🐛 Bug Report In my jest tests, when i attempt to run jest, this is output: FAIL test/product. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog Hey mikeborozdin, thanks for reporting this issue! React Native, as you've probably heard, is getting really popular and truth is we're getting a bit overwhelmed by the activity surrounding it. It looks like you're using webpack with babel-loader, so the only thing you need to do is make sure babel-loader actually picks up react-quill-new. The Issue. While using old babel version everything worked fine, but because of some project problems we had to upgrade babel to 7 You signed in with another tab or window. . But, when I do them using yarnit works. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. 70. This problem h Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. 6. By default, if Jest sees a Babel config, Jest encountered an unexpected token – SyntaxError: Unexpected token 'export' I’m using jest to test a react typescript app. exports = { roots: ['<rootDir>'], moduleNameMapper: { '. 5. Hot Network Questions Zombie/monster movie with couple in nightclub/bar Jest encountered an unexpected token Jest failed to parse a file. 3 with React Native 0. when your code or its dependencies use non-standard JavaScript syntax, or when Jest Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. it's not plain I wrote step by step what I did, maybe it could help you investigate later some other bugs: I removed babel-core, @babel/core and babel-jest to be sure jest will use the defaults sipped with it. I expected the tests to run without errors. Not one bit. 1 and babel-jest 26. By default, if Jest sees a Babel config, it will use that to transform your files, ignoring "node_modules". /example. Unexpected token 'export' There seems to be an issue with your configuration that prevents React Native Testing Library from working correctly. Hmm, not for me, at least when using npm. Unset the EXPO_DOCTOR_ENABLE_DIRECTORY_CHECK environment variable to disable this check. js is completely ignored for some reason but works for other packages just fine. Contribute to jestjs/jest development by creating an account on GitHub. g. If your bundle doesn't support native ES modules, you will need to use babel to transpile it. it's not pla Enabled experimental React Native Directory checks. $ npx jest FAIL . json which breaks the test that imports that package. B. Thank you for your quick response. This means that a file is not transformed through TypeScript compiler, e. To put this in different terms, I'm using Jest to test a package with "modern" JavaScript, which in-turn imports another package with "modern" JavaScript. Host and manage packages Security. By default, if Jest sees a Babel config, it will use that to transform Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. Version 29. Step 1: installation: You signed in with another tab or window. Select Topic Area Bug Body 1 I attempted to run Jest tests for TypeScript code in a React Native project. controller. 23. In order to support ES modules Jest needs to add a recognition of those extensions. Issue : I am using ts-jest to test my typescript library. The error is "Jest encountered an unexpected token" and the Jest encountered an unexpected token. I don't think Babel is missing the react preset, firstly because it is installed and secondly because the app would not run. So for the Jest tests to run, it first needs to be transpiled by Babel. after rm -rfing node_modules, reinstalling the dependencies it started to work. Skip to content Toggle navigation. Quill >= 2. I recommend using ts-jest for simplicity. @JanithaR this does not solve the problem. Jest encountered an unexpected token when working with React TypeScript. Asking for help, clarification, or responding to other answers. All reactions Importing PDF and Document directly from 'react-pdf If you are using libraries such as react-native-paper or @react-navigation/native, you are likely to run into the below error: Jest encountered an unexpected token Jest failed to parse a file. I am getting the message 'Jest encountered an unexpected token' for all my unit tests when setting up jest-runner-eslint in projects: module. What you did: Running Jest tests for a React Native project with the configuration and code provided above. js docs, but still same issue. Topics Trending jest, and react native testing library. 5 without any issues. I've added the module react-qr-reader which in turn uses the modules webrtc-adapter. Jest encountered an You signed in with another tab or window. I have issues with Jest picking up an internal library, Jest would display 'unexpected token' errors wherever I had my imports from this library. That means the contents of the react-native npm package is not transformed, while it Saved searches Use saved searches to filter your results more quickly You signed in with another tab or window. 5. Out of the box Jest supports Babel, which will be used to transform your files into valid JS based on your Babel configuration. EDIT. Nevermind. 这个特性解决了什么问题？ 想做react-native的单元测试，但是遇到报错如下： Test suite failed to run Jest encountered an unexpected token Test suite failed to run, Jest encountered an unexpected token Hey everyone, I recently imported the @FluentUI\react-charting module into my UX code so I could create a sparkline chart, and everything compiles and renders correctly. Error: I got the following error: Jest encountered an unexpected token Jest failed to parse a file. Hi guys! The library is amazing. 0. Reload to refresh your session. Unfortunately, I have no way of helping you in a meaningful way – there is no easy way for me to recreate the situation and check that the issue reported is still there when changing I'm developing a React app with a QR-scanner in it with create-react-app. We could use babel-jest or ts-jest. @example/b will have a dependency on @example/a. Explain what you did i use react-native-web react-native-elements jest and, i try to test a component who use react-native-elements by jest Expected behaviour test will pass Describe the bug FAIL s PS C:\Users\myland\code\services\packages\open-api> npx jest PASS tests/bsv/health. 0 and jest@27 (due to create-react-app, although I tried manually upgrading to jest@29 and it didn't seem to affect this scenario), the transformIgnorePatterns solution worked with npm, but not after I switched to pnpm. 71. This whole mock jest thing feels very brittle. 1 using yarn install. Turns out babel 7 WILL be chosen and installed because of react So I'm trying to write tests on my React Native app with Jest and TypeScript. json, you will see that files from the node_modules subdirectory are excempted from beeing transformed to ES5 (see link, line 19):. I don't understand much of the whole babel transformation pipeline, but if you open the preprocessor. SyntaxError: Invalid or unexpected token when testing react application with babel and jest. After upgrading from expo SDK 47 to 48 and consequently upgrading react-native to 0. Find and fix vulnerabilities Codespaces. Sign up Product Actions. 0 Steps to reproduce Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. Copy link Also ensure you're running newest version of Jest, although they still work on native support for ESM modules: jestjs/jest#9430. 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. For anyone using create-react-app, only certain jest configurations can be changed in package. js until node will implement support of modules without a flag. ; I upgraded ts-jest (it was 22). This is the test I’m running: Jest failed to parse a file. As answers above have described, Jest doesn't support ES6 modules. Version Jest: 29. 0 You signed in with another tab or window. 3, my jest tests are failing. 1 Steps to reproduce Our current project is using jest 27. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not configured to support such syntax. module. it 's not plain JavaScript. Links to third party websites are only allowed in addition to having the minimal reproducible example in your post. Instant dev environments amcharts4 issue #2133 - github OR Jest encountered an unexpected token. jsx Test suite failed to run Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cann Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. You signed out in another tab or window. Automate any workflow Packages. Another odd data point: using axios@1. By default, if Jest sees a Babel config, it Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. @KristianLonergan sounds great. None of the popular solutions here were working for me either. test. So, we need transform the code to a supported module type. And adding the transformIgnorePatterns makes other tests fails (that use react-native-camera for instance). json for common issues Check Expo config for common issues Check native tooling versions Check if the project meets version requirements for submission to app stores 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. Jest was configured and the **last pipeline on dev was able to run test, However, if I clone now, even if I have a package-lock. Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. The "issue" is that Jest only wants to process CommonJS-style code. Thank you ️☺️! I am using Jest + React Native + TypeScript to write test cases for my application. 2. If folks can't answer your question from what's in your post alone, your post is incomplete (and note that the minimal example requires some work on your part - that's intentional. Check package. Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. js refrenced in your package. Navigation Menu Toggle navigation. 1 and babel-jest to 29. ts Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. When running jest on @example/b it fails to run due to ESM syntax. Issues with CJS vs ESM You signed in with another tab or window. I am running the tests on the CLI by running npx jest <test file> and this works flawlessly. Sign in Product GitHub Copilot GitHub community articles Repositories. However, I encountered the Jest encountered an FAIL src/utils/html-to-markdown. Otherwise, you can try checking our examples which showcase a model, working setup: https://github. Defining mocks/react-native-vector-icons. We upgraded jest to 29. It all works great, until I run yarn 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 Current Behavior I want to independently publish @example/a and @example/b. This Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. , it's not plain JavaScript. And Jest doesn't like it. because it is a JS file with TS syntax, or it is published to npm as uncompiled source files. Step 2: Describe your environment template name : re-start template version : ??? cloned repo a month ago OS : linux (mint) Platform causing error: jest in the ci "react-native": "0. By default, if Jest sees a Jest failed to parse a file. json, I have the failing test: FAIL src/tests/index. nx/pa Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. This happens e. To Jest encountered an unexpected token. You switched accounts on another tab or window. 2. This Enabled experimental React Native Directory checks. ts FAIL tests/bsv/fee. 4", "react-n 🐛 Bug Report Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. json when using create-react-app. I was able to reproduce it only once. By default, if Jest sees a Babel config, it will use that to When I try to test it with jest i have: "Jest encountered an unexpected token This usually means that you are trying to import a f Skip to content. The failure was not the usual "cannot use import statement", but rather some disconnect in the code that Jest doesn't work with import { Web } from "@pnp/sp/webs"; 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. Jest will also need to pass an --experimental-modules flag to node. Jest encountered an unexpected token. com Describe the bug I have a project for react, typescript, in which I have dependencies coming as ecm modules. exports = { env: { test: { presets: [ [ '@babel/preset-env', { modules: 'commonjs', debug: false } ], '@babel/preset-flow', '@babel/preset-react' ], plugins You signed in with another tab or window. ; I ran yarn why @babel/core to see if it was still installed, and if so why. You signed in with another tab or window. This is sounding like a problem of NPM's non-determinism 😓. I tried comparing the diffs of You signed in with another tab or window. I had to edit the files, by moving the import statements to the top of the files, and instead importing the plugin from node_modules, I imported it from this new folder. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is n I am building an expo react-native app with expo SDK 36. mwdo oahdd gioxo gmxw vghcfto frm soqrl fajh jkckexx ruqv mxliz elwi pma tcaqoigo twgyuv