Testing custom Express server using Jest+supertest results in segmentation fault when next.config.js is in the project

[JosteinKringlen]

What version of Next.js are you using?

12.0.3

What version of Node.js are you using?

14.18.1

What browser are you using?

Firefox

What operating system are you using?

macOS 11.5.2

How are you deploying your application?

Other platform

Describe the Bug

Testing a custom Express server using Jest + supertest while next.config.js is in the project results in segmentation fault. All tests run as expected when removing/renaming the config file.

The tests also run as expected when downgrading Next to v11.1.2.

Expected Behavior

Should be able to run the tests.

To Reproduce

Simple reproduction with steps to trigger the error: https://github.com/JosteinKringlen/next-js-jest-segfault-repro

[timneutkens]

This seems to be related to nodejs/node#35889

[khasty720]

Same issue appears to be affecting next-page-tester

[kyle-mwnz]

I have found that Next. has implemented a configuration to force use of require as opposed to import to workaround this segfault issue

process.env.__NEXT_TEST_MODE === 'jest'

https://github.com/vercel/next.js/pull/32688/files#diff-207ae8f32dbb5c5e77b18e26589b6121f92a0d423479f03c523a7a01bc184cb5R574

[github-actions]

Please verify that your issue can be recreated with next@canary.

Why was this issue marked with the please verify canary label?

We noticed the provided reproduction was using an older version of Next.js, instead of canary.

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Useful Resources

• How to Contribute to Open Source (Next.js)
• How to create a Minimal, Complete, and Verifiable example
• Reporting a Next.js bug
• Next.js Triaging issues

[balazsorban44]

This issue has been automatically closed because it wasn't verified against next@canary. If you think it was closed by accident, please leave a comment. If you are running into a similar issue, please open a new issue with a reproduction. Thank you.

[github-actions]

This closed issue has been automatically locked because it had no new activity for a month. If you are running into a similar issue, please create a new issue with the steps to reproduce. Thank you.