qual(el.$.check.checked, true, 'checkbox should be checked');
      document.body.removeChild(el);
    });
  });

  test('disabled elements don\'t fire taps', function() {
    let el = document.createElement('x-disabled-tap');
    document.body.appendChild(el);
    // tap an element with disabled attribute
    let target = el.$.disabled;
    // simulate the event sequence of a touch on the screen
    let touches = [{
      clientX: 0,
      clientY: 0,
      identifier: 1,
      // target is set to the elem