cope div {
        background-color: red;
      }
      :scope > div {
        background-color: red;
      }
    </style>
    <div>Test</div>
  `;
    let div = host.shadowRoot.querySelector('div');
    assert_equals(getComputedStyle(div).backgroundColor, 'rgb(0, 128, 0)');
  }, ':scope does not match in shadow root');
</script>
