export default { html : '<button>???</button>' , async test ( { assert , target , window } ) { const event = new window . MouseEvent ( 'click' , { clientX : 42 , clientY : 42 } ) ; const button = target . querySelector ( 'button' ) ; await button . dispatchEvent ( event ) ; assert . equal ( target . innerHTML , '<button>42</button>' ) ; } } ;