How to test $refs in Vue Test Utils with Jest?

Question

Unit testing

The component has a method:

scrolToTop() {
      this.$refs.dialog.scrollTo(0, 0);
},

When running the test, it displays an error in the console:
TypeError: this.$refs.dialog.scrollTo is not a function

Tried to do this, but nothing happened

const wrapper = shallowMount(Component, {
      mocks: {
        $refs: {
          dialog: {
            scrollTo() {
              return true;
            }
          }
        }
      }
    });

How to work with it?