[Bug]: Unresolved dependency on jest 28 and incorrectly resolved export map on jest 27

[nickbabcock]

Version

27.5.1 and v28.0.0-alpha.7

Steps to reproduce

For jest 27:

1. Clone https://github.com/nickbabcock/jest-resolve-issue
2. npm install
3. npm test

For jest 28 alpha

1. Clone https://github.com/nickbabcock/jest-resolve-issue
2. npm install --save-dev jest@next
3. npm test

Expected behavior

Welcome to Node.js v16.13.1.
Type ".help" for more information.
> const { MyClass } = require("jest-bug")
undefined
> const a = new MyClass();
undefined
> a.greet()
'hello from node'

Actual behavior

On jest 27:

    Expected: "hello from node"
    Received: "hello from browser"

On jest 28:

    Cannot find module 'jest-bug' from 'tests/test.js'

Additional context

Related (but not dupe): #9771

Environment

System:
    OS: Linux 5.16 Pop!_OS 20.04 LTS
    CPU: (18) x64 AMD Ryzen 9 5900X 12-Core Processor
  Binaries:
    Node: 16.13.1 - ~/.nvm/versions/node/v16.13.1/bin/node
    npm: 8.1.2 - ~/.nvm/versions/node/v16.13.1/bin/npm
  npmPackages:
    jest: ^28.0.0-alpha.7 => 28.0.0-alpha.7

[github-actions]

This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 30 days.

[nickbabcock]

Can confirm this bug is still present on 28.0.0-alpha.8

[SimenB]

v27 doesn't provide node condition by default, so that's expected (#11924).

v28. one is not expected, tho... Will take a look.

[SimenB]

Ah, v28 is #10883. Not sure why it halfway works in v27 but in now breaks here since resolve doesn't find the package: https://github.com/facebook/jest/blob/816789920fe08b2f0245963e91d3a96fe80e1311/packages/jest-resolve/src/defaultResolver.ts#L118

[SimenB]

https://github.com/facebook/jest/releases/tag/v28.0.0-alpha.9

[nickbabcock]

I can confirm that v28 alpha 9 works. Thank you 🎉

[github-actions]

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