clientY;
      child.dispatchEvent(ev);

      for (var i = 0; i < 10; i++) {
        clientX += 1;
        ev = new CustomEvent(i === 9 ? 'touchend' : 'touchmove', options);
        ev.touches = ev.changedTouches = [
          {
            clientX: clientX,
            clientY: clientY,
            identifier: 1,
            // target is set to the element with `addEventListener`, which is el
            target: el
          }
        ];
        ev.clientX = clientX;
        ev.clientY = clientY;
        