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I'm getting the following error with Jest, but unclear why even after adding the testEnvironmentOptions

 TypeError: Cannot read properties of undefined (reading 'testEnvironmentOptions') at new JSDOMEnvironment (node_modules/jest-environment-jsdom/build/index.js:72:28) at async TestScheduler.scheduleTests (node_modules/@jest/core/build/TestScheduler.js:333:13) at async runJest (node_modules/@jest/core/build/runJest.js:404:19)

Here is my Jest config in my package.json:

 "jest": { "moduleNameMapper": { "^@/(.*)$": "<rootDir>/$1", "^~/(.*)$": "<rootDir>/$1", "^vue$": "vue/dist/vue.common.js" }, "testEnvironment": "jsdom", "testEnvironmentOptions": { "browsers": [ "chrome", "firefox", "safari" ] }, "moduleFileExtensions": [ "vue", "js", "json" ], "transformIgnorePatterns": [ "/node_modules/(?!crypto-random-string)" ], "transform": { "^.+\\.js$": "<rootDir>/node_modules/babel-jest", ".*\\.(vue)$": "<rootDir>/node_modules/vue-jest" }, "collectCoverage": true, "collectCoverageFrom": [ "<rootDir>/src/**/*.vue", "<rootDir>/src/**/*.js" ] }
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8 Answers 8

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99

Make sure you have both packages jest and jest-environment-jsdom installed in the same version. The latter is required to be installed separately from jest version 28 on. I ran into the same issue when downgrading jest to 27.x but not jest-environment-jsdom. Have a look at the version 27 to 28 upgrade guide about using JSDOM test environment.

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7 Comments

Boy I spent a couple of days already toiling away at this! THANK YOU for the tip of installing them separately! I owe you a beer, sir!
Is this how it is supposed to be? "devDependencies": { "jest": "^28.1.2", "jest-environment-jsdom": "^28.1.2" }
@AmirŠaran Yes, for example. Is it working?
If you have jest installed globally as I do, make sure to update it too. Otherwise, running jest from your terminal will result in the same error.
jestjs.io/docs/upgrading-to-jest29#jsdom-upgrade
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I had different versions of local jest and global jest, jest-environment-jsdom was not installed globally. This caused me the issues. Running it locally via

./node_modules/jest/bin/jest.js src/my-test.spec.ts

or updating global jest packages did the job for me. I see that this is mentioned in one of the comments above, but somehow I missed it and spent too much time on it so posting it here

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Using pnpm workspaces, in my project I needed to add a local dependency on jest-cli that matched the local jest version.
Thank you @Sly_cardinal, that was precisely my issue also. Arggggh
Indeed, I had the same situation, but using npx jest src/my-test.spec.ts is simpler to use the project's jest :)
5

For me running

npx browserslist@latest --update-db

did the job

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2 Comments

surprisingly for me too.
Same for me even though I had a message suggesting I do it which I ignored
2

I used yarn jest instead of jest to run the tests and it worked.

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2

For those who still need a solution, try to check if you have a global version of the problematic library (in this case "jest-environment-node").

if you have it installed globally and the versions are different (from the running project version) you'll get errors.

I had the same issue with "jest" and with "babel-jest" when I tried to run yarn start (got a long error that started with "There might be a problem with the project dependency tree")

deleting these folders from the global path solved the problem.

the global path in Mac is usually /Users/{user}/node_modules/

good luck.

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0

I removed testEnvironment: 'node' and it works perfectly

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0

In my case, I had a different version of Jest globally than in my package.json. Therefore, the output of jest --version and npx jest --version were different. Using the same versions fixed the issue.

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-1

If it's still not working, then please upgrade jest from 27.x to 29.x. And either remove other manual installed lib like jest-environment-node, jest-environment-jsdom (as they will come as part of jest-puppeteer) or bring these to v29.x as well.

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