Tools/TestWebKitAPI/Tests/WebKitCocoa/IDBIndexUpgradeToV2.html

<script>

var databaseName = "index-upgrade-test";
var openRequest = indexedDB.open(databaseName);
var db;
openRequest.onupgradeneeded = function(event) {
    window.webkit.messageHandlers.testHandler.postMessage('Unexpected upgrade needed');
}

openRequest.onsuccess = function(event) {
    var req = event.target.result.transaction('store').objectStore('store').index('index').get("indexkey!");
    
    req.onsuccess = function (event) {
        window.webkit.messageHandlers.testHandler.postMessage("Object expected to be a blob: " +  event.target.result.test);
    }
    req.onerror = function (event) {
        window.webkit.messageHandlers.testHandler.postMessage("Unexpected get error");
    }
}

</script>