[Test]: fix for RecordData refactor in emberjs

https://github.com/emberjs/ember.js/pull/19379/files

packages/-ember-data/tests/integration/debug-adapter-test.js

@@ -1,6 +1,6 @@
 import { A } from '@ember/array';
 import { get } from '@ember/object';
-import { settled } from '@ember/test-helpers';
+import { settled, waitUntil } from '@ember/test-helpers';
 
 import { module, test } from 'qunit';
 
@@ -90,6 +90,7 @@ module('integration/debug-adapter - DS.DebugAdapter', function(hooks) {
       addedRecords = wrappedRecords;
     };
     var recordsUpdated = function(wrappedRecords) {
+      debugger;
       updatedRecords = wrappedRecords;
     };
     var recordsRemoved = function(index, count) {
@@ -112,6 +113,8 @@ module('integration/debug-adapter - DS.DebugAdapter', function(hooks) {
 
     let post = await store.findRecord('post', 1);
 
+    await waitUntil(() => updatedRecords && updatedRecords.length === 1, { timeout: 5000 });
+
     post.set('title', 'Modified Post');
 
     assert.equal(get(updatedRecords, 'length'), 1, 'We updated 1 post');