Ensure IndexedDB's write operations invalidate cursor prefetch caches

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


indexedDB = self.indexedDB || self.webkitIndexedDB || self.mozIndexedDB || self.msIndexedDB || self.OIndexedDB;

indexedDB.deleteDatabase(dbname)
indexedDB.open(dbname)

prepareDatabase():
db = event.target.result
store = db.createObjectStore('store')

onOpenSuccess():
db = event.target.result

-------------------------------------------

doPrefetchInvalidationTest():
store = db.transaction('store', 'readwrite').objectStore('store')
Populate the store with 100 records.
cursorRequest = store.openCursor()

continue50Times():
PASS cursorRequest.result is non-null.

doOperationAndContinue():
store.delete(IDBKeyRange.bound(-Infinity, +Infinity))
cursor = cursorRequest.result
cursor.continue()

onContinueSuccess():
PASS cursorRequest.result is null

-------------------------------------------

doPrefetchInvalidationTest():
store = db.transaction('store', 'readwrite').objectStore('store')
Populate the store with 100 records.
cursorRequest = store.openCursor()

continue50Times():
PASS cursorRequest.result is non-null.

doOperationAndContinue():
store.clear()
cursor = cursorRequest.result
cursor.continue()

onContinueSuccess():
PASS cursorRequest.result is null
PASS successfullyParsed is true

TEST COMPLETE