open-request-queue.html

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This WPT test may be referenced by the following Test IDs:
- /IndexedDB/open-request-queue.html - WPT Dashboard Interop Dashboard

<!doctype html>

<meta charset=utf-8>

<title>IndexedDB: open and delete requests are processed as a FIFO queue</title>

<link rel="help" href="https://w3c.github.io/IndexedDB/#request-connection-queue">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="resources/support.js"></script>

<script>

async_test(t => {

    let db_name = 'db' + self.location.pathname + '-' + t.name;

    indexedDB.deleteDatabase(db_name);

    // Open and hold connection while other requests are queued up.

    let r = indexedDB.open(db_name, 1);

    r.onerror = t.unreached_func('open should succeed');

    r.onsuccess = t.step_func(e => {

        let db = r.result;

        let saw = expect(t, [

            'open1 success',

            'open1 versionchange',

            'delete1 blocked',

            'delete1 success',

            'open2 success',

            'open2 versionchange',

            'delete2 blocked',

            'delete2 success'

]);

        function open(token, version) {

            let r = indexedDB.open(db_name, version);

            r.onsuccess = t.step_func(e => {

                saw(token + ' success');

                let db = r.result;

                db.onversionchange = t.step_func(e => {

                    saw(token + ' versionchange');

                    setTimeout(t.step_func(() => db.close()), 0);

});

});

            r.onblocked = t.step_func(e => saw(token + ' blocked'));

            r.onerror = t.unreached_func('open should succeed');

        function deleteDatabase(token) {

            let r = indexedDB.deleteDatabase(db_name);

            r.onsuccess = t.step_func(e => saw(token + ' success'));

            r.onblocked = t.step_func(e => saw(token + ' blocked'));

            r.onerror = t.unreached_func('deleteDatabase should succeed');

        open('open1', 2);

        deleteDatabase('delete1');

        open('open2', 3);

        deleteDatabase('delete2');

        // Now unblock the queue.

        db.close();

});

}, 'Opens and deletes are processed in order');

</script>