const {triggerEvent} = require('./_30s.js'); test('triggerEvent is a Function', () => { expect(triggerEvent).toBeInstanceOf(Function); }); test('triggerEvent triggers an event', () => { let el = document.createElement('div'); let val = false; const fn = () => val = true; el.addEventListener('click', fn); triggerEvent(el, 'click', {}); expect(val).toBeTruthy(); });