Use async/await

tests/utils.js

@@ -15,16 +15,13 @@
     }
     utils.waitUntil = waitUntilPromise.default;
 
-    utils.waitUntilDiscoConfirmed = function (_converse, entity_jid, identities, features, items, type) {
-        if (_.isNil(type)) {
-            type = 'info';
-        }
-        return utils.waitUntil(() => {
+    utils.waitUntilDiscoConfirmed = async function (_converse, entity_jid, identities, features, items, type='info') {
+        const iq = await utils.waitUntil(() => {
             return _.filter(
                 _converse.connection.IQ_stanzas,
                 (iq) => sizzle(`iq[to="${entity_jid}"] query[xmlns="http://jabber.org/protocol/disco#${type}"]`, iq.nodeTree).length
             ).pop();
-        }, 300).then(iq => {
+        }, 300);
         const stanza = $iq({
             'type': 'result',
             'from': entity_jid,
@@ -42,7 +39,6 @@
             stanza.c('item', {'jid': item}).up();
         });
         _converse.connection._dataRecv(utils.createRequest(stanza));
-        }).catch(_.partial(console.error, _));
     }
 
     utils.createRequest = function (iq) {