.ShadyDOM ? 'style[scope~=x-var-produce-via-consume]' : 'style';
    var staticStyle = styleRoot.querySelector(selector);
    assert.ok(staticStyle);
    assert.match(staticStyle.textContent, /display/, 'static style does not contain style content');
    assert.equal(styleRoot.querySelectorAll(selector).length, 1);
  });

  test('mixin values can be overridden by subsequent concrete properties', function() {
    assertComputed(styled.$.override, '19px');
  });

  test('@apply without parens is included in s