Using Jasmine to spy on a function without an object

Question

I\'m new to Jasmine and have just started using it. I have a library js file with lots of functions which are not associated with any object (i.e. are global). How do I go a

Answer 1

import * as saveAsFunctions from 'file-saver';
..........
....... 
let saveAs;
            beforeEach(() => {
                saveAs = jasmine.createSpy('saveAs');
            })
            it('should generate the excel on sample request details page', () => {
                spyOn(saveAsFunctions, 'saveAs').and.callFake(saveAs);
                expect(saveAsFunctions.saveAs).toHaveBeenCalled();
            })

This worked for me.