t.querySelector('#host1');
      assert.strictEqual(getComposedHTML(host), '<div>shadow</div>');
    });

    test('render slotted content', function() {
      const host = document.querySelector('#host2');
      assert.strictEqual(getComposedHTML(host), '<div><div slot="a">light</div></div>');
    });

    test('render re-distributed slotted content non-slot children', function() {
      const host = document.querySelector('#host3');
      assert.strictEqual(getComposedHTML(host), '<x-outer1><x-inner1><div