Test WebKitMutationObserver.observe on CharacterData nodes

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


Testing basic aspects of characterData observation.
...can characterData changes be observed at all
PASS mutations.length is 1
PASS mutations[0].type is "characterData"
PASS mutations[0].target is charDataNode
...observer.disconnect() should prevent further delivery of mutations.
PASS mutations is null
...re-observing after disconnect works with the same observer.
PASS mutations.length is 2
PASS mutations[0].type is "characterData"
PASS mutations[0].target is charDataNode
PASS mutations[1].type is "characterData"
PASS mutations[1].target is charDataNode

Testing that observing without specifying "characterData" does not result in hearing about characterData changes.
PASS mutations is null

Testing that multiple observers can be registered to a given node and both receive mutations.
PASS mutations.length is 1
PASS mutations[0].type is "characterData"
PASS mutations[0].target is charDataNode
PASS mutations2.length is 1
PASS mutations2[0].type is "characterData"
PASS mutations2[0].target is charDataNode

Testing mutation records are enqueued for characterData before DOMSubtreeModified is dispatched.
PASS mutations.length is 2
PASS mutations[0].type is "characterData"
PASS mutations[1].type is "attributes"

Testing that oldValue is returned when requested.
PASS mutations.length is 2
PASS mutations[0].type is "characterData"
PASS mutations[0].target is charDataNode
PASS mutations[0].oldValue is "foo"
PASS mutations[1].type is "characterData"
PASS mutations[1].target is charDataNode
PASS mutations[1].oldValue is "bar"

Testing that oldValue is delivered as requested (or not).
PASS mutationsWithOldValue.length is 1
PASS mutationsWithOldValue[0].type is "characterData"
PASS mutationsWithOldValue[0].oldValue is "foo"
PASS mutations.length is 1
PASS mutations[0].type is "characterData"
PASS mutations[0].oldValue is null

An observer with multiple observations will get characterDataOldValue if any entries request it.
PASS mutations.length is 1
PASS mutations[0].type is "characterData"
PASS mutations[0].oldValue is "foo"

PASS successfullyParsed is true

TEST COMPLETE