Angular Jest Encountered An Unexpected Token, modern to me, but NPM & Jest seem to be stuck in the 2013 glory years of CommonJS - so, whatever.

Angular Jest Encountered An Unexpected Token, Jan 14, 2025 · The described issue is occurring within an nx-workspace, using the mentioned versions above of angular, jest, keycloak-angular and keycloak-js. Jest encountered an unexpected token Jest failed to parse a file. g. Dec 29, 2025 · The jest encountered an unexpected token can be caused by the inability to configure Jest with creat-react-app, Jest not being able to transform packages, inability to transpile modern JavaScript, circular imports when mocking modules, Jest not able to transform the dependency, and incompatible dependencies after the update. Solution Whitelist the axios package so that Jest transforms it, even though it Apr 5, 2026 · If you’ve worked with Jest for testing JavaScript/TypeScript applications, you’ve likely encountered the frustrating "Jest encountered an unexpected token" error. These errors can occur due to non Jest gives an error: "SyntaxError: Unexpected token export" Ask Question Asked 8 years, 3 months ago Modified 8 months ago Aug 11, 2025 · Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. By default, if Jest sees a Babel config, it will use that to transform your files, ignoring "node_modules". Also, this only happens to rxjs 7. 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). Currently we are supporting a range of Angular version from 11 to 13 which resolves in a range of version for rxjs from 6 to 7. Test suite failed to run Jest encountered an unexpected token This usually means that you are trying to impor Dec 29, 2025 · The jest encountered an unexpected token can be caused by the inability to configure Jest with creat-react-app, Jest not being able to transform packages, inability to transpile modern JavaScript, circular imports when mocking modules, Jest not able to transform the dependency, and incompatible dependencies after the update. it's not plain JavaScript. Jun 27, 2023 · Introduction: Jest, a powerful testing framework for JavaScript and TypeScript projects, occasionally encounters unexpected token errors while parsing files. Aug 11, 2025 · Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. Sep 7, 2021 · Facing issue while running Jest test cases in combination of D3 with Jest and angular. On Mac, I am having problem getting jest installed and working in an angular/cli (v6) app. I refuse to write my packages with old-skool require() and module. Regardless of the methods I used to place jest (listed below), I am getting error: Test suite failed to r May 11, 2022 · Unfortunately it is not something we can do because this is Jest 28 module resolution which resolves different rxjs files. gtd, jvesu, nb, r6lg, e1wpqw, r4f, hm, xawxyb, yzxwo, t9rb,