Unable to mock document.createRange with setupTests.js

[RusinovAnton]

My tests are failing in CI because of following error.

TypeError: document.createRange is not a function

    at findCommonOffsetParent (/app/node_modules/popper.js/dist/umd/popper.js:259:24)

    at getReferenceOffsets (/app/node_modules/popper.js/dist/umd/popper.js:744:83)

    at Popper.update (/app/node_modules/popper.js/dist/umd/popper.js:918:28)

    at Popper.update$$1 (/app/node_modules/popper.js/dist/umd/popper.js:2466:21)

    at /app/node_modules/popper.js/dist/umd/popper.js:51:7

    at <anonymous>

 DEBUG [7c086cee] 	

I've tried to mock this function globally by adding src/setupTests.js like documentation of CRA suggests:
https://github.com/facebook/create-react-app/blob/master/packages/react-scripts/template/README.md#initializing-test-environment

But that wasn't efficient - they're still failing

[papermana]

Hm, what does your src/setupTests.js look like?

There was a discussion about this problem in the Popper repo and someone had a solution that supposedly works.

[RusinovAnton]

I did take that snippet excluding enzyme adapter since I do not use enzyme at all

[RusinovAnton]

https://github.com/NodusMedical/nodus-frontend/pull/65/files

Nevermind jest config in package.json part. It doesn't make any effect

[RusinovAnton]

I've tried to make test of setupTests.js and added next code there

document.RAWR = 'test';

and then tried to access it in one of my tests like

typeof document.RAWR

And it said that RAWR is undefined

[papermana]

There's a typo there.

"setupFiles": ["./setup.test.js"]

But the actual file is setupTests.js.

[RusinovAnton]

The issue was with invalid Circle CI configuration.
I was using "prebuild" script to run "yarn test" command.
Now changed it for Circle CI job and problem is gone.

Sorry for false issue