export default { props: { value: 1, }, test({ assert, component, target, window }) { const buttons = target.querySelectorAll('button'); const click = new window.MouseEvent('click'); const events = []; component.$on('value', event => { events.push(event.detail); }); buttons[0].dispatchEvent(click); buttons[1].dispatchEvent(click); component.value = 2; buttons[0].dispatchEvent(click); buttons[1].dispatchEvent(click); assert.deepEqual(events, [ { value: 1 }, { value: 1 }, { value: 2 }, { value: 2 } ]); }, };