public function testExtract()
 {
     $array = ['id' => '2b73fftuqqa84lha6jt4pcl097', 'name' => 'uthando-cms', 'modified' => 1398807915, 'lifetime' => 1440, 'data' => ''];
     $hydrator = new SessionHydrator();
     $model = $hydrator->hydrate($array, new SessionModel());
     $this->assertSame($array, $hydrator->extract($model));
 }