This test ensure that the multiple shadow root is available. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS internals.shadowRoot(div) is null PASS internals.shadowRoot(div) is shadowRoot1 PASS shadowRoot1.olderShadowRoot is null PASS internals.shadowRoot(div) is shadowRoot2 PASS shadowRoot2.olderShadowRoot is shadowRoot1 PASS internals.shadowRoot(div) is shadowRoot3 PASS shadowRoot3.olderShadowRoot is shadowRoot2 PASS successfullyParsed is true TEST COMPLETE