Vue test watcher change but code inside not response

I'm stuck in this situation where I have a getters from Vuex Store, and whenever that getter change (new value update), the local state data(the 'list') should be reassign . This is my component, which has 'list' in data

And here is my test Successfully change the getSkills to the getSkillsMock, but there is no response from list, list is still an []