1 Test MutationObserver.observe options related to character data
3 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
6 PASS records.length is 1
7 PASS records[0].oldValue is "0"
8 PASS records.length is 1
9 PASS records[0].oldValue is null
10 PASS successfullyParsed is true