Testing with a Pinia store best practices

[silverbackdan]

It is described in the Pinia testing to do this for testing with a Pinia store:
https://pinia.vuejs.org/cookbook/testing.html

import { setActivePinia, createPinia } from 'pinia'
import { useCounterStore } from '../src/stores/counter'

describe('Counter Store', () => {
  beforeEach(() => {
    // creates a fresh pinia and make it active so it's automatically picked
    // up by any useStore() call without having to pass it to it:
    // `useStore(pinia)`
    setActivePinia(createPinia())
  })
...

However because my plugin & module created pinia stores, this is too late.

For now, I've adjusted my plugin

import { setActivePinia, createPinia } from 'pinia'
import { addRouteMiddleware, defineNuxtPlugin } from '#app'
import CwaRouteMiddleware from '#cwa/runtime/route-middleware'
import Cwa from '#cwa/runtime/cwa'
import { options } from '#build/cwa-options'

export default defineNuxtPlugin({
  name: 'cwa-plugin',
  enforce: 'pre',
  setup (nuxtApp) {
    if (process.env.NODE_ENV === 'test') {
      setActivePinia(createPinia())
    }
    addRouteMiddleware('cwa', CwaRouteMiddleware, { global: true })
    return {
      provide: {
        cwa: new Cwa(nuxtApp, options)
      }
    }
  },
  hooks: {}
})

So I can set the active pinia store without causing an error when starting the nuxt environment. Is this the preferred way to do this or is there a better DX to be had when testing a module which is using pinia stores?

[silverbackdan]

Further to this, I have adjusted my scripts so that I am not calling the Pinia store in a class constructor. Delaying this call seems to have resolved the issue of setting an active Pinia store.

Previously I was setting up the stores, and then in the next class, in the constructor, trying to use the store value in a ref. This was working before, but also, it was probably always returning the initial store state in any case.

I think something may have changed in the pinia store where the active pinia instance is set a little later that it was before.