Jest Encountered An Unexpected Token Import, The available help is not very good: I found many variations on the same question while searching for an answer. Feb 10, 2026 · More often, it stems from issues like invalid JSON syntax, misconfigured Jest settings, or incorrect file paths. This usually means that you are trying to import a file which Jest cannot parse, e. Jun 25, 2021 · Steve Ruiz Posted on Jun 25, 2021 Jest and ESM: Cannot use import statement outside a module This post describes a fix for a common issue with Jest and ESM modules. 解决jest处理es模块 问题场景 项目使用 进行测试时, 当引入外部库是 模块时, 无法处理导致报错. , axios) is located in node_modules and uses modern syntax that Jest does not transform by default. I refuse to write my packages with old-skool require() and module. ts エラー Test suite failed to run Jest encountered an unexpected token / Jul 2, 2018 · It looks like the initial import in the script for the Vue component being mounted for the test is working but the import within the module itself (import Icon from '. By default, if Jest sees a Babel config, it will use that to transform your files, ignoring "node_modules". Solution Whitelist the axios package so that Jest transforms it, even though it Sep 19, 2023 · Judging from the content of your error report, the problem lies in [Jest encountered an unexpected token] Since your issue is about Jest, and our forum focus on SharePoint. May 5, 2025 · Root cause When a unit test imports a function from a module that uses ECMAScript Module (ESM) syntax, for example, import axios, { isCancel } from 'axios', which leads to Jest fail to parse because the module (e. This usually means that you are trying to import a file which Jest cannot parse, e. Many of the threads are long. Jest encountered an unexpected token. The threads span a number of years - meaning that the issue keeps cropping up for people repeatedly. g. Nov 23, 2022 · How to resolve unexpected tokens in TypeScript Feb 11, 2022 · bi-kai changed the title Jest encountered an unexpected token [Bug]: Jest encountered an unexpected token on Feb 11, 2022 Sep 8, 2024 · はじめに Reactの自動テスト、コンポーネント側でsvgをimportしてたのですが、読み込みエラーが出て困ったため記載します 問題 テスト対象のコンポーネントでsvgをimportしてところ以下エラーが発生 Test suite failed to run Oct 8, 2024 · jestの設定 transformIgnorePatterns で、特定のモジュールをトランスパイルするように設定します。 今回は web-vitals というパッケージがESModule記法だったので、こちらを対象外とするように設定しています。. 安装依赖 2. it's not plain JavaScript. /components/Icon. By configuring Babel for JavaScript/JSX/TypeScript, mocking non-JS files, or using custom transformers, you can resolve it. Jest failed to parse a file. In this guide, we’ll break down the root causes of this error and walk through step-by-step solutions to fix it, ensuring your JSON imports work seamlessly in Jest. gvg16, 5kjm, 2kmkgm, vyslm, yf3, tfv, zgpku, c6itf, qs, 9hsngcb,
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