blob-contenttype.any.js

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This WPT test may be referenced by the following Test IDs:
- /IndexedDB/blob-contenttype.any.html - WPT Dashboard Interop Dashboard
- /IndexedDB/blob-contenttype.any.worker.html - WPT Dashboard Interop Dashboard

// META: title=Blob Content Type

// META: script=resources/support.js

// META: timeout=long

indexeddb_test(

    function upgrade(t, db) {

        db.createObjectStore('store');

},

    function success(t, db) {

        var type = 'x-files/trust-no-one';

        var blob = new Blob(['mulder', 'scully'], {type: type});

        assert_equals(blob.type, type, 'Blob type should match constructor option');

        var tx = db.transaction('store', 'readwrite', {durability: 'relaxed'});

        tx.objectStore('store').put(blob, 'key');

        tx.oncomplete = t.step_func(function() {

            var tx = db.transaction('store', 'readonly', {durability: 'relaxed'});

            tx.objectStore('store').get('key').onsuccess = t.step_func(function(e) {

                var result = e.target.result;

                assert_equals(result.type, type, 'Blob type should survive round-trip');

                var url = URL.createObjectURL(result);

                var xhr = new XMLHttpRequest(), async = true;

                xhr.open('GET', url, async);

                xhr.send();

                xhr.onreadystatechange = t.step_func(function() {

                    if (xhr.readyState !== XMLHttpRequest.DONE)

                        return;

                    assert_equals(xhr.getResponseHeader('Content-Type'), type,

                                  'Blob type should be preserved when fetched');

                    t.done();

});

});

});

},

    'Ensure that content type round trips when reading blob data'

);