Jest encountered an unexpected token import angular. 0 Steps to reproduce Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. Here's what you can do: May 29, 2023 · Version Jest: 29. js, Angular, React Native, and Vue. Jan 30, 2020 · Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. Jan 27, 2025 · Jest encountered an unexpected token Jest failed to parse a file. Here's what you can do. Dec 29, 2025 · The jest encountered an unexpected token error message can appear while working with specific frameworks and libraries in JavaScript that require additional configuration to be resolved in Jest, such as T ypeScript, Next. Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. Nov 22, 2021 · Jest failed to parse a file. 5. A typical Jest error is like this: Jun 27, 2023 · This blog post provided a comprehensive guide to leveraging transformIgnorePatterns and offered a final fix for unexpected token errors. Unexpected token [import|export|other] This means, that a file is not transformed through TypeScript compiler, e. May 5, 2025 · When running unit tests using Jest, get the error as below. Sep 7, 2021 · This usually means that you are trying to import a file which Jest cannot parse, e. Sep 12, 2021 · Jest encountered an unexpected token Jest failed to parse a file. Jul 1, 2025 · Jest encountered an unexpected token Jest failed to parse a file. it's not plain JavaScript. because it is a JS file with TS syntax, or it is published to npm as uncompiled source files. Dec 7, 2022 · After migration of Angular v12 to v13 the project consist of the following versions: Angular - v13 Storybook - 6. Jest encountered an unexpected token. Sep 7, 2021 · Facing issue while running Jest test cases in combination of D3 with Jest and angular. After I ran the npm run test command for the unit test cases which is throwing the following error: Jest encountered an unexpected token. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is n Jun 25, 2021 · Jest encountered an unexpected token Jest failed to parse a file. 12 I upgraded jest, ts-jest, @types/jest and jest-preset-angular to the latest versions. On Mac, I am having problem getting jest installed and working in an angular/cli (v6) app. Test suite failed to run Jest encountered an unexpected token This usually means that you are trying to impor Nov 25, 2024 · Jest encountered an unexpected token Jest failed to parse a file. Regardless of the methods I used to place jest (listed below), I am getting error: Test suite failed to r Aug 17, 2020 · I am using Jest for testing my Angular application but am getting the following errors: Test suite failed to run Jest encountered an unexpected token This usually means that you are try Nov 22, 2021 · Jest encountered an unexpected token Jest failed to parse a file. Jest failed to parse a file. js, Node. Here's what you can do: • To have some of your "node_modules" files transformed, you can specify a custom "transformIgnorePatterns" in Apr 24, 2024 · Jest encountered an unexpected token Jest failed to parse a file. g. By default, if Jest sees a Babel config, it will use that to transform your files, ignoring "node_modules". Out of the box Jest supports Babel, which will be used to transform your files into valid JS based on your Babel configuration. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not configured to support such syntax. This happens e. jzo umf ghk hee twj ipw uti lag rbd ejt fnm jqe vir mga lac