mocking typescript class depedency with jest test framework

mocking.ts

import { FoobarService } from "./foobar.service"
import { FooService } from "./foo.service"
import { BarService } from "./bar.service"

jest.mock("./foo.service")
jest.mock("./bar.service")
describe("foobar service", ()=>{
    let service:FoobarService
    let foo:FooService
    let bar:BarService

    beforeEach(()=>{
        foo = jest.genMockFromModule<FooService>("./foo.service")
        bar = jest.genMockFromModule<BarService>("./bar.service")
        service = new FoobarService(foo,bar)
    })

    it('test', async ()=>{
        foo.print = jest.fn().mockReturnValue("Foo")
        bar.print = jest.fn().mockReturnValue("Bar Helloworld")
        expect(service.print()).toContain("Hello")
    })
})