Test for DOMNode.shadowRootType. == Running test suite: DOMNode.shadowRootType -- Running test case: ShadowRootType.UserAgent PASS: DOMNode has a single shadow root. PASS: DOMNode has UserAgent shadow root type. PASS: DOMNode is in a UserAgent shadow tree. -- Running test case: ShadowRootType.Closed PASS: DOMNode has a single shadow root. PASS: DOMNode has Closed shadow root type. PASS: DOMNode is not in a UserAgent shadow tree. -- Running test case: ShadowRootType.Open PASS: DOMNode has a single shadow root. PASS: DOMNode has Open shadow root type. PASS: DOMNode is not in a UserAgent shadow tree. -- Running test case: NoShadowRootType PASS: DOMNode has no shadow roots. PASS: DOMNode has no shadow root type.