Cannot read property 'deps' of null

[Mattchewone]

Version

1.0.0-beta.14

Reproduction link

https://codesandbox.io/s/1pm8pzxm4

Steps to reproduce

Open the test tab to see the failing test.

What is expected?

Using findAll with .at() to trigger a click

What is actually happening?

Test is failing with "Cannot read property 'deps' of null" message

---

I am storing open/close states in parent component and testing by triggering clicks in the scopedSlot component.

[Mattchewone]

Also not sure why in the codesandbox example these aren't printed in the console, but on my local version my terminal is filled with these:

[Vue warn]: Unknown custom element: <v-card-title>

I can't see what is wrong with the way I have added Vuetify to the localVue and Vue instance. So any insights would be greatly appreciated.

[Mattchewone]

@eddyerburgh Could you point me in the right direction as to where I could look into this so I could perhaps create a PR for a fix. Assuming this is a bug and not an issue with my code..

Thanks

[eddyerburgh]

The issue will be in either this file—https://github.com/vuejs/vue-test-utils/blob/dev/packages/test-utils/src/set-watchers-to-sync.js, or this file—https://github.com/vuejs/vue-test-utils/blob/dev/packages/test-utils/src/order-watchers.js

[Mattchewone]

Thanks @eddyerburgh Is there a guide on getting the test utils running locally. I finally managed to get it to installed but getting lots of flow check errors when running the test suite. Wanted to get it to run locally before I looked into those files.
Maybe I am missing something from the setup, but I cloned and then installed, and it kept failing on the postinstall with a lerna failure. So I installed some deps to get passed that, but then running npm test just fails on flow check - Module not found: ...

[eddyerburgh]

You need to run lerna bootstrap in the root of the project, then yarn install in the root. I'll add a contributing guide soon.