1Test for a specific problem with previousNode that failed in older versions of WebKit. 2 3On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". 4 5 6PASS walker.firstChild(); walker.currentNode.id is 'A1' 7PASS walker.nextNode(); walker.currentNode.id is 'B1' 8PASS walker.nextNode(); walker.currentNode.id is 'C1' 9PASS walker.nextNode(); walker.currentNode.id is 'B2' 10PASS walker.previousNode(); walker.currentNode.id is 'C1' 11PASS successfullyParsed is true 12 13TEST COMPLETE 14 15