This tests that pressing Tab key should traverse into shadow DOM subtrees, and pressing Shift-Tab should reverse the order. Should move from input-1 to shadowhost in forward PASS Should move from shadowhost to shadowhost/input-2 in forward PASS Should move from shadowhost/input-2 to distributed-node-2 in forward PASS Should move from distributed-node-2 to distributed-node-1 in forward PASS Should move from distributed-node-1 to input-3 in forward PASS Should move from input-3 to distributed-node-1 in backward PASS Should move from distributed-node-1 to distributed-node-2 in backward PASS Should move from distributed-node-2 to shadowhost/input-2 in backward PASS Should move from shadowhost/input-2 to shadowhost in backward PASS Should move from shadowhost to input-1 in backward PASS details/summary elements use Shadow DOM and distributed nodes internally. Should move from input-1 to summary-1 in forward PASS Should move from summary-1 to input-2 in forward PASS Should move from input-2 to summary-1 in backward PASS Should move from summary-1 to input-1 in backward PASS Test finished. PASS successfullyParsed is true TEST COMPLETE