Jest encountered an unexpected token react native github. Jest encountered an unexpected token with react-native.
- Jest encountered an unexpected token react native github This Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. 1 using yarn install. However, I encountered the Jest encountered an FAIL src/utils/html-to-markdown. Asking for help, clarification, or responding to other answers. Hi guys! The library is amazing. ; I upgraded ts-jest (it was 22). With 9. Issue : I am using ts-jest to test my typescript library. because it is a JS file with TS syntax, or it is published to npm as uncompiled source files. 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. Instant dev environments amcharts4 issue #2133 - github OR Jest encountered an unexpected token. I'm not sure if any other required changes would be needed within Jest in order to support this. 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. This happens e. 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. . 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. B. 2. Sign in Product GitHub Copilot GitHub community articles Repositories. This is sounding like a problem of NPM's non-determinism 😓. json, you will see that files from the node_modules subdirectory are excempted from beeing transformed to ES5 (see link, line 19):. 0. 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. We could use babel-jest or ts-jest. After upgrading from expo SDK 47 to 48 and consequently upgrading react-native to 0. Find and fix vulnerabilities Codespaces. Hot Network Questions Zombie/monster movie with couple in nightclub/bar Jest encountered an unexpected token Jest failed to parse a file. Host and manage packages Security. 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. Unset the EXPO_DOCTOR_ENABLE_DIRECTORY_CHECK environment variable to disable this check. When running jest on @example/b it fails to run due to ESM syntax. $ npx jest FAIL . 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. Copy link Also ensure you're running newest version of Jest, although they still work on native support for ESM modules: jestjs/jest#9430. So, we need transform the code to a supported module type. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Version Jest: 29. 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. I expected the tests to run without errors. App bootstrapped with "create react app" Jest encountered an unexpected token Jest failed to parse a file. I don't understand much of the whole babel transformation pipeline, but if you open the preprocessor. 0 Steps to reproduce Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. I recommend using ts-jest for simplicity. 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. 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. js docs, but still same issue. 🐛 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. This Enabled experimental React Native Directory checks. 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. 1 and babel-jest to 29. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not configured to support such syntax. Unexpected token 'export' There seems to be an issue with your configuration that prevents React Native Testing Library from working correctly. Jest encountered an You signed in with another tab or window. Essentially, you need to add this to your Jest configuration: You signed in with another tab or window. module. 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. 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. 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). Not one bit. @JanithaR this does not solve the problem. controller. Jest will also need to pass an --experimental-modules flag to node. Thank you for your quick response. json when using create-react-app. What you did: Running Jest tests for a React Native project with the configuration and code provided above. js is completely ignored for some reason but works for other packages just fine. 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. Provide details and share your research! But avoid . 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. None of the popular solutions here were working for me either. @KristianLonergan sounds great. Select Topic Area Bug Body 1 I attempted to run Jest tests for TypeScript code in a React Native project. 5. 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. I don't think Babel is missing the react preset, firstly because it is installed and secondly because the app would not run. Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. You signed in with another tab or window. By default, if Jes Oof, so: when I do the steps at the top using npm, it still fails the same way. 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 inside ts-jest/node_modules/jest-util Hi all, I'm trying run jest using ts-jest, but I'm running into the following error: Jest encountered an unexpected I have the same issue. Check package. 0 You signed in with another tab or window. 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. ts FAIL tests/bsv/fee. 0 moves to native ES modules, and so ReactQuill did too. Jest encountered an unexpected token with react-native. This problem h Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. 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. 1 and babel-jest 26. 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. You switched accounts on another tab or window. So for the Jest tests to run, it first needs to be transpiled by Babel. it's not pla Enabled experimental React Native Directory checks. Nevermind. exports = { roots: ['<rootDir>'], moduleNameMapper: { '. The Issue. 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. This means that a file is not transformed through TypeScript compiler, 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. Quill >= 2. 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. This whole mock jest thing feels very brittle. 6. Topics Trending jest, and react native testing library. 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. I've added the module react-qr-reader which in turn uses the modules webrtc-adapter. I am running the tests on the CLI by running npx jest <test file> and this works flawlessly. 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. Error: I got the following error: Jest encountered an unexpected token Jest failed to parse a file. , it's not plain JavaScript. 23. /example. 1 Steps to reproduce Our current project is using jest 27. 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. 70. 4. Jest encountered an unexpected token when working with React TypeScript. json, I have the failing test: FAIL src/tests/index. 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. 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. it's not plain JavaScript. js refrenced in your package. I have issues with Jest picking up an internal library, Jest would display 'unexpected token' errors wherever I had my imports from this library. EDIT. By default, if Jest sees a Babel config, it will use that to transform your files, ignoring "node_modules". 5 without any issues. 55. Issues with CJS vs ESM You signed in with another tab or window. 71. 2. 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. nx/pa Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. Jest encountered an unexpected token. @example/b will have a dependency on @example/a. In order to support ES modules Jest needs to add a recognition of those extensions. Tests fail when executed due to unexpected react-dnd syntax: Relevant Package Versions / Background. 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. 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. By default, if Jest sees a Jest failed to parse a file. Otherwise, you can try checking our examples which showcase a model, working setup: https://github. I was able to reproduce it only once. Links to third party websites are only allowed in addition to having the minimal reproducible example in your post. Skip to content Toggle navigation. I tried comparing the diffs of You signed in with another tab or window. Thank you ️☺️! I am using Jest + React Native + TypeScript to write test cases for my application. g. Navigation Menu Toggle navigation. 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. test. 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. Step 1: installation: You signed in with another tab or window. I am getting the message 'Jest encountered an unexpected token' for all my unit tests when setting up jest-runner-eslint in projects: module. Another odd data point: using axios@1. Sign up Product Actions. If your bundle doesn't support native ES modules, you will need to use babel to transpile it. SyntaxError: Invalid or unexpected token when testing react application with babel and jest. it 's not plain JavaScript. 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. Reload to refresh your session. This is the test I’m running: Jest failed to parse a file. The error is "Jest encountered an unexpected token" and the Jest encountered an unexpected token. 5. Out of the box Jest supports Babel, which will be used to transform your files into valid JS based on your Babel configuration. 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. And Jest doesn't like it. export function flatten (target, opts) { ^^^^^ SyntaxError: Unexpected token 'export' I made sure my jest was properly installed and set up, as per Next. You signed out in another tab or window. This usually means that you are trying to import a file which Jest cannot parse, e. 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. The "issue" is that Jest only wants to process CommonJS-style code. 3 with React Native 0. Automate any workflow Packages. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. after rm -rfing node_modules, reinstalling the dependencies it started to work. We upgraded jest to 29. 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. To Jest encountered an unexpected token. And adding the transformIgnorePatterns makes other tests fails (that use react-native-camera for instance). As answers above have described, Jest doesn't support ES6 modules. Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. js until node will implement support of modules without a flag. com Describe the bug I have a project for react, typescript, in which I have dependencies coming as ecm modules. 3, my jest tests are failing. Jest encountered an unexpected token ReactJS. ; I ran yarn why @babel/core to see if it was still installed, and if so why. Defining mocks/react-native-vector-icons. Version 29. json which breaks the test that imports that package. Hmm, not for me, at least when using npm. However, while running npm i, 🐛 Bug Report In my jest tests, when i attempt to run jest, this is output: FAIL test/product. spec. ts Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. But, when I do them using yarnit works. Contribute to jestjs/jest development by creating an account on GitHub. For anyone using create-react-app, only certain jest configurations can be changed in package. 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. nnpffx epaid vvkgd txzmq cawm pbbq pibp nqfv dkuowcp byippp dbl uynif wkvesb qipjmho xlzz