Angular unit test document.querySelector('') and scrollIntoView

scrollIntoView.spec.ts

//document.querySelector('#elId').scrollIntoView({ behavior: 'smooth'});

it('Sidenav Clicked navigate to route "Subawards', () => {
    const mSpy = spyOn(component, 'clicked').and.callThrough();
    let divElement = document.createElement('div');
    divElement.setAttribute('id', "header");  
    spyOn(document, 'querySelector').and.returnValue(divElement);
    component.clicked({ 'mode': 0, 'path': '#header' });
    expect(mSpy).toHaveBeenCalled();
  
  });