Unexpected Token Export Vitest. at some point, I get this error : Syntax Error: Invalid or unexpect

at some point, I get this error : Syntax Error: Invalid or unexpected token It seems one of the packages we have in the project has this line that causes the issue: One alternative is Vitest which has an API compatible Jest. Or rewrite your path to not be relative to root: Make sure you don't have relative aliases. js Jun 2, 2023 · SyntaxError: Unexpected token '||=' while running Vitest testcase Asked 2 years, 7 months ago Modified 2 years, 7 months ago Viewed 2k times May 4, 2022 · With the 'global' defined in vite config, running 'npm run build' failed when compiling phaser, saying there is unexpected token at the part it declares 'global: blah blah'. Mar 2, 2024 · To solve the error, set the type property to module in your package. autoplay. meta. Sep 30, 2024 · A comparison of Jest and Vitest in terms of their features, performance, and developer experience to help you decide which JavaScript testing framework is best for your use case. Join the Reactiflux Discord (reactiflux. Dec 31, 2022 · I'm using react with ViteJS and Vitest for testing. 2. Start using monocart-coverage-reports in your project by running `npm i monocart-coverage-reports`. 8. 12. js extension are loaded as ES6 modules when the nearest package. component. /index';" (this line is from core. We’re approaching this one as a release candidate because it contains quite a number of breaking changes. ts src/a Feb 7, 2023 · node. mjs file) Please let me know how to fix this issue? Mar 10, 2025 · Developers frequently encounter "Unexpected token 'export'" errors Module resolution becomes particularly problematic with external packages React 19 Integration Upgrading to React 19 while maintaining Jest functionality has proven challenging Test suites that worked perfectly in previous versions may suddenly fail Mar 1, 2022 · Describe the bug If we use vite worked with some 3rd library like pyodide, they will get an error like Uncaught SyntaxError: Unexpected token 'export'. js npm vite vitest Improve this question asked Feb 7, 2023 at 17:50 fernando cuadros f fernando cuadros f Feb 24, 2025 · ESM import throws: SyntaxError: Unexpected token 'export' #759 New issue Closed as not planned Jul 18, 2022 · I am trying to setup some unit-tests with vitest on a Svelte Application (with Typescript support), and I get the following error: ParseError: D:/ ()/src/Overlay. 11. esm. Refer to the official docs to get started. Dec 30, 2022 · Describe the bug all deps are inlined, still getting this error $ pnpx vite-node src/main. A code coverage tool to generate native V8 reports or Istanbul reports. SyntaxError: Unexpected token 'export' I am using Angular 18 and creating an application using `ng new`. However, Vitest is gaining traction and is fixing many of the pain points that Angular developers have been facing with Jest. svelte:23:17 Unexpected token In Feb 28, 2023 · Unit tests with Jest and React Testing Library - Couldn't find next-intl config file error How to retrieve the token (via Postman/ Python / n8n)Is there a way to achieve currying with a local variableGerrit rights for cloning a repo without a master branch (only tags exists)[Link] Core: Unable to get id_token and access token from openid connectTYPO3 - Exclude from speaking URLStay signed in Google Cloud Calendar APIWhat is causing Nov 6, 2023 · I'm encountering a really frustrating issue trying to use Vitest with the ArcGIS JS API. ts (node:97207) Warning: To load an ES module, set "type": "module" in the Jan 21, 2025 · Version ^5. If you don't have a package. true A community for discussing anything related to the React UI framework and its ecosystem. When I run the npm run dev command, the app will start and seems to work as it should, but during the build I always get t Jan 27, 2023 · Describe the bug I'm trying to migrate a project from CRA+Jest to Vite+Vitest, so far everything went well but now i'm stuck at a point where vitest is failing the majority of the tests with the sa Oct 15, 2022 · vitest-dev / vitest Public Sponsor Notifications You must be signed in to change notification settings Fork 1. fetchDisplayName is not a function (server#54900) Chore (flake): update May 7, 2025 · Option 2 seems straightforward and is lower impact than changing to Vitest or jest-fixed-jsdom; that would be my recommendation for anyone not interested in trying option 5 or 6. e. json file. Feature propos Jun 19, 2025 · There has been Vitest support for Angular for a while, thanks to Analog and its plugin, which I also tried when Angular 18 came out, and it works just fine. Let's explore some of the reasons why you should consider using Vitest for your Angular projects. It looks like there is an issue with how Vitest interacts with the imports of Stencil JS. Apr 7, 2022 · When I run the app I'm getting the error from scripts. For example, you could simply "disable" it on vitest like this. tsx [ test/button. This happens e. 2 (server#54889) Build (deps): bump query-string from 9. 0) and you can't update to Vitest but you just want to get your tests running & you had to address the security vulnerability in pdf. Using Parcel Jest can be used in projects that use parcel-bundler to manage assets, styles, and compilation similar to webpack. Using TypeScript Via babel Jest supports TypeScript, via Babel. Currently I have to mock every view that utilises anything from calcite in order to get Vitest to work for me, otherwise it fails 100% of the time. Parcel requires zero configuration. Jul 27, 2022 · Module /Users/foo/workspaces/bar/ceres-app/node_modules/@ionic/core/components/index. css' }) export class AppComponent { title = 'test'; } app Mar 17, 2025 · Description Since the recent move of next-intl to ESM, running tests with Jest broke. 3 to 5. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not configured to support such syntax. Reproduction Download pyodide full version from the release page and extract it to sr Feb 13, 2022 · Describe the bug Test fails with message SyntaxError: Unexpected token '<' when the component you test imports an svg. Dec 17, 2014 · Learn about the latest features, bug fixes, and support for Visual Studio 2022 for version 17. Nov 2, 2023 · Unexpected token 'export' with vite dev server #26209 New issue Closed as not planned Jan 21, 2023 · Describe the bug Hello everyone. I am using vitest for the first time in simple react app created with vite. This tutorial shows you how we fixed it! Vite creates a modern bundle using ECMAScript modules. It's possible that you rely on baseUrl in your tsconfig. json by default, so you might need to install vite-tsconfig-paths yourself, if you rely on this behaviour. Includes causes of the error, how to identify the problem, and the fix. If you are not using vite, add defineConfig imported from vitest/config to your config file: Jan 27, 2024 · I don't know how you're taking coverage in your project (via vitest? cypress?), but I think Vitest provides something equivalent already with the official istanbul provider https://vitest. html', styleUrl: '. it's not plain JavaScript. Jan 4, 2022 · When importing a javascript based vue component inside of typescript vue component I receive the following error: Test suite failed to run Jest encountered an unexpected token Jest failed to pars 🚀 Ideal for beginners or advanced TypeScript programmers, our coding course guarantees something new for everyone. test: { deps: { inline: [ "@ionic/core" Aug 11, 2022 · It told us that the export keyword isn’t available when importing the bundled JavaScript into the browser. You'll also need to add a reference to Vitest types using a triple slash command at the top of your config file, if you are importing defineConfig from vite itself. here's the error I'm getting: I found a lot of sources on similar issues about the topic but nothing I tried worked. Latest version: 2. 0 Release date: 2026-01-04 This release contains the following notable improvements, along with numerous fixes: Currency display in budget — Shows currency symbols in the budget view Mobile schedules page — Full schedules functionality now available on mobile devices Link detection in transaction notes — URLs in transaction notes are now automatically detected and made Sep 10, 2022 · I am trying to migrate from jest to Vitest. Dec 24, 2024 · Describe the bug SyntaxError: Unexpected token 'export' Module C:/project/antdesign/node_modules/@fancyapps/ui/dist/carousel/carousel. . Apr 8, 2024 · Discussion on issues with ESLint 9 flat config compatibility with TypeScript and troubleshooting steps. Many of the threads are long. This tutorial shows you how we fixed it! Vite Series Overview How to Fix „Uncaught SyntaxError: Unexpected token 'export‘“ Resolve `import. Luckily, Angular already has enough information in its docs to achieve this. I followed explanations on how to setup the testing library, but when I exe Aug 10, 2020 · SyntaxError: Unexpected token 'export' with vue and typescript #10386 New issue Closed Shivakishore14 | Features | Description | Links #1 is recommended. 1. app. 4. Mar 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. Sep 6, 2023 · If vitest doesn't support mixed bundled packages, all of the incorrectly bundled packages need to be fixed. SyntaxError: Unexpected token 'export' Jest Learn how to fix the SyntaxError: Unexpected token 'export' Jest error with this step-by-step guide. We would like to show you a description here but the site won’t allow us. Reproduction The component I'm testing just has an svg import export enum Erro Aug 11, 2022 · Yet, we fought the „Unexpected token export ” error. tsx ] Error: Parse failure: Unexpected token (18:50) At file: /packages/common/constants/index. js:1 seems to be an ES Module but shipped in a CommonJS package. ts import { Component } from '@angular/core'; @Component({ standalone: true, selector: 'app-test', templateUrl: '. test. You might want to create an issue to the package "@ionic/core" asking them to ship the file in . By default, if Jest sees a Babel config, it will use that to transform your files, ignoring "node_modules". 3 Link to Minimal Reproduction Visual Studio Code Steps to Reproduce Good time! Guys, importing charts "knocks down" tests written on vitest: SyntaxError: Unexpected token 'export' Alt Nov 23, 2025 · Describe the bug Description When running tests with Vitest 4. js in react-pdf v8 so are forced to update to react-pdf to v9. json file, you can create one with the npm init -y command. Aug 26, 2023 · Unexpected token 'export' when importing hanko-elements in SvelteKit app Asked 2 years, 3 months ago Modified 2 years, 3 months ago Viewed 200 times Hi, I'm new to svelte, and I'm trying to add some unit tests to my application. jsのデフォルトのコンパイラはSWCだが、Jestはbabel-jestを利用するので気をつけましょう。 SyntaxError: Unexpected token '<' 開発中のNext. json has a type field set to module. 1 (server#54882) Build (deps-dev): bump typescript from 5. 2 (server#54893) Fix: TypeError: this. mjs extension or add "type": "module" in their package. Here's what you can do: Oct 30, 2019 · I have a React application (not using Create React App) built using TypeScript, Jest, Webpack, and Babel. While trying to import * as echarts from 'echarts/core'; it throws me the following erro Jan 4, 2026 · Release Notes 26. js src/test/setup. May 29, 2024 · If you are stuck with an older legacy code base (i. Jun 29, 2022 · I'm trying to create a production build of my React application with Vite. 0. 0 to 2. I've searched for simi Next Generation Frontend Tooling Haven't you ever been annoyed by the common SyntaxError: Unexpected token 'export' that you get when you forget to downgrade ESM to CommonJS in Jest, and the weird negative regex in transformIgnorePatterns? Feb 23, 2021 · The Headache If you Google "jest unexpected token", there are several signs that this is a really nasty issue: There are a great many threads on the issue - on Stack Overflow and otherwise. It told us that the export keyword isn’t available when importing the bundled JavaScript into the browser. Feb 16, 2025 · Next. The workload is relatively large, and I am concerned about the impact of changing the packaging method. Tur OP•2y ago Feb 10, 2025 · For a piece of a larger effort I wanted to create a containerized development server using Vite, a popular frontend build tool, and Bun, an… To configure vitest itself, add test property in your Vite config. Verifications I've verified that the problem I'm experiencing isn't covered in the docs. 9. com) for additional React discussion and help. vite. Out of the box Jest supports Babel, which will be used to transform your files into valid JS based on your Babel configuration. html, so I don't think you would need vite-plugin-istanbul when running Vitest. Vite doesn't take into account tsconfig. There are 14 other projects in the npm registry using monocart-coverage-reports. React 16, node v18. The threads span a number of years - meaning that the issue keeps cropping up for people repeatedly. Aug 17, 2021 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. Effectively, this means it's possible to craft a program that does different things in CJS vs ESM mode. The html comment token can therefore be parsed either as a comment or as a series of operators depending on the grammar being used. Files ending with a . 1 to 9. I have set up the config for vitest and the test setup file too as you can see in the screenshots below. glob` in TypeScript Nov 16, 2022 · Hey! Thank you for taking the time to help us with the next library release. g. Nov 22, 2021 · JEST failure while upgrading angular v13: SyntaxError: Unexpected token 'export' #7844 New issue Closed Dec 5, 2025 · server Feat (files_trashbin): Refactor expire background job to support parallel run (server#53025) Build (deps-dev): bump msw from 2. config. When I am tryin to configure vitest to run in a jsdom environment, I get the next error: Dec 31, 2022 · I'm using react with ViteJS and Vitest for testing. jsのプロジェクトに、テストを追加したいなと思い、Jestを導入しました。 Apr 8, 2022 · Vitest 是一个由 Vite 提供支持的极速单元测试框架。Vitest 旨在将自己定位为 Vite 项目的首选测试框架，即使对于不使用 Vite 的项目也是一个可靠的替代方案。 Oct 8, 2023 · Describe the bug FAIL test/button. 6k Star 15. js and it's pointing to the line "export * from '. /app. 7k Jul 15, 2023 · I am trying to use Apache echarts inside a svelte/svelte-kit project for dynamic data visualization purpose. All modern browsers support ECMAScript modules. But Angular’s own support for Vitest is the new thing, so I had to learn how to use it. When trying to run yarn jest, I get the following error: I have tried removing all package Jest encountered an unexpected token Jest failed to parse a file. I have already informed the vitest team of the issue, a later version should fix it so that the workaround can be removed. dev/guide/coverage. json. 13, certain test files fail with a SyntaxError: Unexpected token 'typeof' during the transformation phase. js:4 seems to be an ES Module but shipped in a CommonJS package. 8, last published: 2 days ago.

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