How to get value of nested props function for unit testing

I have an issue with getting value of nested props function.

this.props.user.getPerson().getData()

getPerson returns new object with person related data.

getData returns person related data.

It's separated for readability and I want to make it work for unit testing.

Test 1:

 let _wrapper,
    initialProps

  beforeEach(() => {
    initialProps = {
      user: {
        getPerson: () => {}
      }
    }
    _wrapper = shallow(<Test1 {...initialProps} />)
  })
some tests...
})

It returned TypeError: Cannot read property 'getData' of undefined.

Test2

 let _wrapper,
    initialProps

  beforeEach(() => {
    initialProps = {
      user: {
        getPerson: () => { getData: () => {} }
      }
    }
    _wrapper = shallow(<Test2 {...initialProps} />)
  })
some tests...
})

It returned TypeError: Cannot read property 'getData' of undefined Same error as Test1.

I tried to get value of props function by passing function however it didn't work from second function.

How can I get value of nested props function?