This test verifies that the xml declaration gets serialized if present.
On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
PASS new XMLSerializer().serializeToString(xmldoc).replace(/"/g,"'") is ""
PASS new XMLSerializer().serializeToString(xmldoc).replace(/"/g,"'") is ""
PASS new XMLSerializer().serializeToString(xmldoc).replace(/"/g,"'") is ""
PASS new XMLSerializer().serializeToString(xmldoc).replace(/"/g,"'") is ""
PASS new XMLSerializer().serializeToString(xmldoc).replace(/"/g,"'") is ""
PASS new XMLSerializer().serializeToString(xmldoc).replace(/"/g,"'") is ""
PASS successfullyParsed is true
TEST COMPLETE