Bug: Cannot stub out directive when mounting component?

[MetRonnie]

Describe the bug

I have a component using Vuetify's v-tooltip directive.

<template>
  <span v-tooltip="'hover text'">Hover me</span>
</template>

const wrapper = mount(Component, {
  props,
  shallow: true,
  global: {
    directives: {
      tooltip: () => {},
    }
  }
})

When I try to shallow mount the component in a unit test I get an error

[Vuetify] Could not find defaults instance
[Vue warn]: injection "Symbol(vuetify:defaults)" not found.
at <VTooltip text="hover text" >
[Vue warn]: Component is missing template or render function: {
name: 'VTooltip',
...

Reproduction

https://stackblitz.com/edit/github-b2nobwpa?file=src%2Fcomponents%2F__tests__%2FHelloWorld.spec.ts&view=editor

Expected behavior

Stubbing the directive should work

Environment

System:
OS: Linux 5.0 undefined
CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
Memory: 0 Bytes / 0 Bytes
Shell: 1.0 - /bin/jsh
npmPackages:
@vue/test-utils: ^2.4.6 => 2.4.6
vitest: ^3.2.4 => 3.2.4
vue: ^3.5.18 => 3.5.21

Additional context

No response

[MetRonnie]

As a workaround I am doing

import { createVuetify } from 'vuetify'

const wrapper = mount(Component, {
  props,
  global: {
    plugins: [createVuetify()]
  }
})

[cexbrayat]

Hi @MetRonnie

yeah I was going to suggest to use the plugin.

I'm not sure why the directive override doesn't work (it should be vTooltip if I remember correctly, but it doesn't change the result in your repro). I'm wondering if inlining vuetify in your config is not messing with the tests, as it complains about the real vTooltip which is never loaded in the test... Maybe ask the Vuetify team if this inlining is mandatory and if there is no way to get rid of the .css error?