Some more tests, don't know if they'll cover.

app/models/Budget.php

@@ -3,6 +3,10 @@
 class Budget extends Component {
     protected $isSubclass = true;
 
-
+    public static $factory = [
+        'name' => 'string',
+        'user_id' => 'factory|User',
+        'class' => 'Budget'
+    ];
 
 }