I am in the process of converting my project from Vue 2 to 3 and also testing library to Vue test utils 2. Before, mocking methods works like magic:

export default {
  methods: {
    greet(text) {
      sayHello('hello world')
    },
    sayHello(text) {
      console.log(text)
    }
  }
}

test('should sample', async () => {
  const spy = jest.spyOn(wrapper.vm, 'sayHello')
  wrapper.vm.greet('hello world')
  expect(spy).toHaveBeenCalledWith('hello world')
})

I tried converting it to composition api:

export default defineComponent({
  setup() {
    function greet(text) {
      sayHello(text)
    }

    function sayHello(text) {
      console.log(text)
    }

    return {
      greet,
      sayHello
    }
  }
})

and now testing is not working at all

expect(jest.fn()).toHaveBeenCalledWith(...expected)

Expected: "hello world"

Number of calls: 0

How do I mock functions that call another functions in Vue 3 + Vue test utils 2?