Cannot find module '@testing-library/jest-dom/extend-expect' from 'jest.setup.js'

Question

import '@testing-library/jest-dom/extend-expect';


expect(screen.getByText('User does not exist.')).toBeInTheDocument()

I'm writing the unit test for my web app, I use toBeInTheDocument() in my code, but after i run npm test in terminal, it shows that 'Cannot find module '@testing-library/jest-dom/extend-expect' from 'jest.setup.js''.

I have a jest.setup.js file which includes the code:require('@testing-library/jest-dom/extend-expect');

and also a jest.config.js file which includes the code: setupFilesAfterEnv:["./jest.setup.js"],

and I also import '@testing-library/jest-dom/extend-expect'; in my test.tsx file, also check the node_modules there is @testing-library/jest-dom under it. what should I do now?`

Dave Lasley · Accepted Answer · 2023-10-27 16:08:56Z

110

This was a breaking change in version 6.0 that removed the extend-expect entry point in favor of a default entry point and some platform specific ones. For my use case, the default entry point worked:

import '@testing-library/jest-dom'

edited Oct 27, 2023 at 16:08

answered Oct 27, 2023 at 15:41

Dave Lasley

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Carlos Para · Accepted Answer · 2023-10-26 17:15:32Z

30

Remove extend-expect from your import:

import '@testing-library/jest-dom'

answered Oct 26, 2023 at 17:15

Carlos Para

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Abel · Accepted Answer · 2025-01-15 13:47:10Z

11

Changing setupFilesAfterEnv: ["@testing-library/jest-dom/extend-expect"] to setupFilesAfterEnv: ["@testing-library/jest-dom"] in jest.config.js file worked fine.

Update:

If you use jest setup file do following

add import "@testing-library/jest-dom" inside jest.setup.js.

add reference to setup file in jest.config.js:

setupFilesAfterEnv: ["<rootDir>/jest.setup.js"]

edited Jan 15 at 13:47

Abel

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answered Feb 28, 2024 at 13:13

Maksat Rahmanov

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Damon Darvishi · Accepted Answer · 2023-10-22 20:07:54Z

3

I also encountered the same problem, and the issue was with the @testing-library/jest-dom version 6.1.4, which I changed to version 5.16.5

edited Oct 22, 2023 at 20:07

answered Oct 22, 2023 at 20:06

Damon Darvishi

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ggomersall Over a year ago

shouldn't have downgraded, there are security vulnerabilities in 5.16.5 - the answer is pretty clear above in saying you need to update your import to only be import '@testing-library/jest-dom'

Ebubekir Tabak · Accepted Answer · 2025-01-31 18:38:12Z

0

This issue can also occur if you use a path alias like "@*": ["./*"], in your tsconfig.json or jest.config.ts. When using wildcard path aliases, Jest may fail to resolve modules correctly because it doesn't know how to map the alias to the actual file paths.

answered Jan 31 at 18:38

Ebubekir Tabak

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