react-test-renderer with jest.resetModules: invariant violiation for hooks

[entropitor]

Do you want to request a feature or report a bug?
bug

What is the current behavior?
When writing a test with jest (and requiring a component with hooks after jest.resetModules()), react-test-renderer complains

Invariant Violation: Hooks can only be called inside the body of a function component. (https://fb.me/react-invalid-hook-call)

If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem. Your bug will get fixed much faster if we can run your code and it doesn't have dependencies other than React. Paste the link to your JSFiddle (https://jsfiddle.net/Luktwrdm/) or CodeSandbox (https://codesandbox.io/s/new) example below:

1. Write a functional component using a hook
2. Create a test using jest
3. Call jest.resetModules
4. Require the module
5. Call renderer.create(<MyComponent />).toJSON()
6. Run test, it fails with the error above

What is the expected behavior?
The test should not crash on hooks in tests where resetModules() is called

Which versions of React, and which browser / OS are affected by this issue? Did this work in previous versions of React?
16.8. as hooks were introduced

[threepointone]

Please share a repro on codesandbox or as a git repo.

[entropitor]

@threepointone I've set up an example at https://github.com/entropitor/react-issue-16012

The first test case succeeds, showing that the repo is set up correctly, but the second one, using resetModules is failing (which it shouldn't)

[threepointone]

I made a PR to your repo that fixes it. entropitor/react-issue-16012#1 more of a jest issue; you should refresh modules after resetting it.

[bmmpt]

Maybe I'm missing something, but it seems to me the modules were already being refreshed...

Why is

const MyComponent = require("./index.js");

needed in the test if it's already in the beforeEach, after resetModules?

MyComponent = require("./index.js");