Test IndexedDB object store required arguments 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; dbname = "objectStore-required-arguments.html" indexedDB.deleteDatabase(dbname) indexedDB.open(dbname) objectStore = db.createObjectStore('foo'); PASS objectStore.put(); threw exception TypeError: Not enough arguments. PASS objectStore.add(); threw exception TypeError: Not enough arguments. PASS objectStore.delete(); threw exception TypeError: Not enough arguments. PASS objectStore.get(); threw exception TypeError: Not enough arguments. PASS objectStore.createIndex(); threw exception TypeError: Not enough arguments. PASS objectStore.createIndex('foo'); threw exception TypeError: Not enough arguments. PASS objectStore.index(); threw exception TypeError: Not enough arguments. PASS objectStore.deleteIndex(); threw exception TypeError: Not enough arguments. PASS successfullyParsed is true TEST COMPLETE