public function testScopedUpdate() {
		$query = new Query(array(
			'type' => 'update',
			'conditions' => array('expires' => array('>=' => '2010-05-13')),
			'data' => array('published' => false, 'comments' => null),
			'model' => $this->_model
		));
		$sql = "UPDATE {mock_database_posts} SET {published} = 0, {comments} = NULL WHERE ";
		$sql .= "({expires} >= '2010-05-13');";
		$this->assertEqual($sql, $this->db->renderCommand($query));
	}