Disable known failure for 3.16.x

Test is automatically re-enabled for 3.17.x.  We can re-enable it once
the upstream failure (glimmerjs/glimmer-vm#1010) is resolved and into
ember-source.

packages/-ember-data/tests/integration/relationships/one-to-many-test.js

@@ -1,9 +1,10 @@
 import { get } from '@ember/object';
 import { run } from '@ember/runloop';
 
-import { module, test } from 'qunit';
+import { module, test, todo } from 'qunit';
 import { resolve } from 'rsvp';
 
+import { gte } from 'ember-compatibility-helpers';
 import { setupTest } from 'ember-qunit';
 
 import Adapter from '@ember-data/adapter';
@@ -1566,39 +1567,47 @@ module('integration/relationships/one_to_many_test - OneToMany relationships', f
     assert.equal(account.get('user'), null, 'Account does not have the user anymore');
   });
 
-  test('createRecord updates inverse record array which has observers', function(assert) {
-    let store = this.owner.lookup('service:store');
-    let adapter = store.adapterFor('application');
-
-    adapter.findAll = () => {
-      return {
-        data: [
-          {
-            id: '2',
-            type: 'user',
-            attributes: {
-              name: 'Stanley',
+  if (gte('3.16.0') && !gte('3.17.0')) {
+    // known failure in 3.16.x due to upstream glimmer VM issue
+    // https://github.com/glimmerjs/glimmer-vm/pull/1010
+    todo('createRecord updates inverse record array which has observers', function(assert) {
+      assert.ok(false, 'known failure in ember-source@^3.16.0');
+    });
+  } else {
+    test('createRecord updates inverse record array which has observers', function(assert) {
+      let store = this.owner.lookup('service:store');
+      let adapter = store.adapterFor('application');
+
+      adapter.findAll = () => {
+        return {
+          data: [
+            {
+              id: '2',
+              type: 'user',
+              attributes: {
+                name: 'Stanley',
+              },
             },
-          },
-        ],
+          ],
+        };
       };
-    };
 
-    return store.findAll('user').then(users => {
-      assert.equal(users.get('length'), 1, 'Exactly 1 user');
+      return store.findAll('user').then(users => {
+        assert.equal(users.get('length'), 1, 'Exactly 1 user');
 
-      let user = users.get('firstObject');
-      assert.equal(user.get('messages.length'), 0, 'Record array is initially empty');
+        let user = users.get('firstObject');
+        assert.equal(user.get('messages.length'), 0, 'Record array is initially empty');
 
-      // set up an observer
-      user.addObserver('messages.@each.title', () => {});
-      user.get('messages.firstObject');
+        // set up an observer
+        user.addObserver('messages.@each.title', () => {});
+        user.get('messages.firstObject');
 
-      let message = store.createRecord('message', { user, title: 'EmberFest was great' });
-      assert.equal(user.get('messages.length'), 1, 'The message is added to the record array');
+        let message = store.createRecord('message', { user, title: 'EmberFest was great' });
+        assert.equal(user.get('messages.length'), 1, 'The message is added to the record array');
 
-      let messageFromArray = user.get('messages.firstObject');
-      assert.ok(message === messageFromArray, 'Only one message record instance should be created');
+        let messageFromArray = user.get('messages.firstObject');
+        assert.ok(message === messageFromArray, 'Only one message record instance should be created');
+      });
     });
-  });
+  }
 });