+
+$producer->notify("test", "just to be sure");
+
+$r = array($consumer->socket);
+$w = null; $e = null;
+stream_select($r, $w, $e, 0,1000);
+$consumer->poll();
+
+$consumer->unlisten("test");
+
+$producer->notify("test", "this shouldn't show up either");
+
+$r = array($consumer->socket);
+$w = null; $e = null;
+stream_select($r, $w, $e, 0,1000);
+$consumer->poll();
+