Mocking $refs in shallowMount

[steven-twerdochlib]

Hi,
I was wondering if it's possible to mock $refs.randomComponentRef.randomFunction in vue 3?
I ask because I have the following method:

randomMethod() {
      this.$refs.randomComponentRef.randomFunction();
    },

I want to test this in isolation of everything so preferably without using mount() and using shallowMount instead. This is because if I did mount the test would complain about undefined props/computed props which I just don't care about. I just want to check the function is called when randomMethod() is run.