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21views
Mock jsdom Location using @jest/environment-jsdom-abstract
Jest 30 uses JSDOM 26, which breaks my tests. I want to test if location.search was modified.Since JSDOM 21, it is not possible to mock location.search as easily as it used to be:// does not work ...
- 1,847
-1votes
0answers
39views
SyntaxError: Unexpected token 'export' in Jest for react-redux/toolkit [closed]
I got this error while testing my Header component which uses the react-redux:SyntaxError: Unexpected token 'export' 3 | import { BrowserRouter } from "react-router-dom"; 4 | ...
0votes
0answers
50views
Jest hangs when publishing to @google-cloud/pubsub in integration test
I have an integration test that publishes a domain event to Google Cloud Pub/Sub (using the Pub/Sub emulator). Eventduspatcher.integration.test.ts passes but Jest prints:Jest did not exit one second ...
-2votes
0answers
44views
Unable to find text in custom modal using MUI Dialog [closed]
I'm writing a test for a React component that shows an error modal when a fetch fails. The component internally uses a custom modal that wraps @mui/material/Dialog. Here's a simplified version of my ...
0votes
0answers
81views
Failed to parse the TypeScript config file with Jest 30.x and Node 22.18+
I'm running into some inconsistent behavior with Jest 30.x, specifically when parsing a jest.config.ts file that imports another TypeScript module, on Node.js 22.18+. My code uses ESM syntax for the ...
1vote
0answers
33views
Is Jest cache shared with other projects on a CI server?
My question is related to Enabling Jest cache in CI servers but a bit more specific.We use Jest with cache enabled on a CI server running tests on multiple projects.By default, Jest uses /tmp/...
0votes
0answers
47views
Unable to find element text from Backstage Table component in test (All components (2) not found)
I'm testing a Backstage plugin component that renders a list of Ansible components using the Backstage Table from @backstage/core-components.In my test, I mock the catalog API to return 2 entities (...
1vote
1answer
48views
How to mock an imported hashPassword function in Jest when testing a registerUser method?
QuestionI have a registerUser method that imports a hashPassword function from a local utility module.// registerUser.tsimport { User } from "../models/user.model";import { hashPassword }...
- 13
0votes
2answers
84views
Nextjs with Jest - unexpected token export
I have a Next.js project with TypeScript.It's a page router instead of an app routerNo babel config file(.babelrc etc) in the projectThe error occurs when I run npm test. jost seems to be one of ...
- 29
-1votes
0answers
71views
How to make Jest depend on other test?
In PHPUnit, there is Test dependencies feature but in Jest I don't see any like that.I have tests just like this. (The whole Node.js project is in "type": "module".)import fs ...
- 4,803
0votes
0answers
36views
Jest coverage shows different results when running single test file vs all tests
I'm experiencing frustrating Jest coverage inconsistencies in my React project. When I run tests for individual files in isolation, I get perfect 100% coverage as expected. However, when I run the ...
- 647
0votes
1answer
68views
Selector excluding nested values
nodejs: 24.7jsdom: 26.1.0Basically, I want to create a selector, that would exclude nested elements - it should find only elements at the first level of nesting. I have this:it('Test selector non-...
3votes
0answers
63views
Jest with TypeScript weird import error: SyntaxError: Cannot use import statement outside a module
Im trying to configure an unit test for my website with Jest and I can't get it to work correctly. I've tried some of the solutions suggested by the ts-jest documentation but it still hasn't worked. ...
0votes
1answer
75views
testing an useState change inside a callback
I have a component like this to test:import {doSomethingMocked} form 'mockedLibrary';const TheComponent = (props) => { const [isToTest, setIsToTest] = useState(false); const handleClick = ...
-3votes
1answer
69views
jest expect(1).toEqual(2) passes while it obviously should fail the test [closed]
Can you help me explain why this jest test case passes?import { describe, it, expect } from '@jest/globals';... describe('jest assertions', () => { it('2 should not equal 1', () => { ...
- 1,571
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