I am facing issue with elastic UI version 80.0.0 when I am trying to create a test case. emotion/css version - 11.11.2 emotion/react version – 11.11.3 emotion/styled version – 11.11.0 emotion/datemath version – 5.0.3

[lokendrak2]

● Test suite failed to run

TypeError: Cannot set properties of undefined (setting 'diff')

> 1 | import { EuiLink, EuiPanel, EuiText } from "@elastic/eui";
    | ^
  2 |
  3 | const VerifyYourEmailMessage = () => {
  4 |   return (

  at Object.<anonymous> (node_modules/text-diff/diff.js:1393:13)
  at Object.<anonymous> (node_modules/@elastic/eui/lib/components/text_diff/text_diff.js:9:40)
  at Object.<anonymous> (node_modules/@elastic/eui/lib/components/text_diff/index.js:12:18)
  at Object.<anonymous> (node_modules/@elastic/eui/lib/components/index.js:875:18)
  at Object.<anonymous> (node_modules/@elastic/eui/lib/index.js:6:19)
  at Object.<anonymous> (src/components/VerifyYourEmailMessage.tsx:1:1)
  at Object.<anonymous> (src/App.tsx:4:1)
  at Object.<anonymous> (src/App.test.tsx:3:1)

[tkajtoch]

Hi @lokendrak2! Is upgrading to the latest @elastic/eui v92.1.1 an option?

Could you share more information about what testing framework you're using and how is it set up?

[lokendrak2]

@tkajtoch I have using with this version "jest": "^29.7.0",
"jest-environment-jsdom": "^29.7.0",
and created a jest config ts
I was trying to upgrade but facing some tags issue and I am using JEST for testing framework.

[tkajtoch]

Could you provide steps to reproduce and a simple test case file that fails to run/compile? That way we can run it locally and see if you need a general or application-specific fix

[lokendrak2]

Hi, We are not able to write a single test case. We have tried to upgrade the elastic UI but facing issue in application.
so we had continued with version 80.0.0.
Except upgrading the version of elastic UI, is there any other solution to fix this issue or we have to upgrade it.
if Version upgrade is the only solution then we have to manage all the component related issue.

this is the old application and now we have start working on test case.

[lokendrak2]

we are using Jest for testing. please suggest can we use any other framework for testing.

[tkajtoch]

Unfortunately, this is a pretty old version, and we no longer support it. My suggestion would be to try upgrading to the latest @elastic/eui and check if that helps.

It seems like this error comes from this pointing to undefined instead of window. Are you sure you're actually running jest with jsdom test environment?