Docs: Missing "Testing" Page Under "Optimizing" for the "Using App Router" Section

[craigmcc]

What is the improvement or update you wish to see?

The Using Pages Router section, under Optimizing, has a nice page about how to set up tests:

Testing

There is no corresponding page in the Using Apps Router section

It would be really helpful to have such a page for people using the Apps Router documentation (even if it is a pointer back to the same content).

Is there any context that might help us understand?

I am trying to use the apps router, with some server actions for accessing my database. The actions themselves work fine in the app, but Jest throws an error when I try to execute a test for them.

Cannot find module 'private-next-rsc-action-proxy' from 'src/actions/LibraryActions.ts'

(LibraryActions.ts is a bunch of server actions talking to the library database, with "use server" at the top.)

I do not know if there is something weird in my Jest setup, or if that is an actual issue.

Does the docs page already exist? Please link to it.

No response

[balazsorban44]

Duplicate of #50334

Related #47299, #47448

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