Should @plone/types be a dependency on Volto?

[wesleybl]

Describe the bug
I updated an app for Volto 18.0.0-alpha.18 and started receiving the error below in my tests:

● Test suite failed to run
    node_modules/@plone/volto/src/helpers/Slots/index.tsx:1:30 - error TS2307: Cannot find module '@plone/types' or its corresponding type declarations.
    1 import type { Content } from '@plone/types';

@plone/types it is a development dependency on Volto. I wonder if it shouldn't be a real dependency. Or should I place it as a development dependency on my addon?

To Reproduce
Steps to reproduce the behavior:

1. Create an app with Volto 18.0.0-alpha.18
2. Create an addon.
3. Create a block in addon.
4. Create a test of edit block.
5. run CI=true NODE_ICU_DATA=node_modules/full-icu yarn test --coverage --maxWorkers=2

Expected behavior
test run without error.

Software (please complete the following information):

• Volto Version: 18.0.0-alpha.18

[wesleybl]

Hmm, this error does not occur locally only on the CI. I have the build job that runs yarn install and I pass the node_modules folder via artifacts to the test job. Do I have to pass any more folders?

[wesleybl]

I managed to simulate the error locally. I deleted the repository, made a new clone and ran the tests. Then the error occurred. When I ran the tests a second time, the errors no longer occurred. Then something happened on the first run that caused the error to stop occurring. Do I have to do anything before running the tests for the first time? @sneridagh , any tips?

[sneridagh]

Add it as a devDependency

[wesleybl]

Add it as a devDependency

Yes this works. Should we add it to the app generator's devDependencies?

[sneridagh]

@wesleybl I am so over Jest... We have to move far from it as soon as we can :(

I have a PR open to update all the deps/devDeps to the generator:

#5872

I will add it there. I plan to add all the required dependencies there for 18 (apps/plone repo folder in the Volto repo), so we have them all already in projects/addons. Then we could go to pnpm also right away.

[sneridagh]

@wesleybl I will work on it in the next days, please add @plone/types (as devDep) if you can.

[wesleybl]

@sneridagh I was having this problem with other packages too:

Test suite failed to run
    node_modules/@plone/volto/src/components/theme/SlotRenderer/SlotRenderer.tsx:1:29 - error TS7016: Could not find a declaration file for module 'react-router-dom'. '/builds/sgc/my.package-12677/my.package/node_modules/react-router-dom/index.js' implicitly has an 'any' type.
      Try `npm i --save-dev @types/react-router-dom` if it exists or add a new declaration (.d.ts) file containing `declare module 'react-router-dom';`
    1 import { useLocation } from 'react-router-dom'

Test suite failed to run
    node_modules/@plone/volto/src/helpers/Blocks/defaultBlocks.ts:1:28 - error TS7016: Could not find a declaration file for module 'uuid'. '/builds/sgc/my.package-12677/my.package/node_modules/uuid/dist/index.js' implicitly has an 'any' type.
      Try `npm i --save-dev @types/uuid` if it exists or add a new declaration (.d.ts) file containing `declare module 'uuid';`
    1 import { v4 as uuid } from 'uuid'

I will add them too.