public function testUpdateCast()
{
$json = '
{"update_id":137809336,
"message":{"message_id":4479,"from":{"id":123,"first_name":"John","username":"MJohn"},"chat":{"id":-123,"title":"MyChat","type":"group"},"date":1449092987,"reply_to_message":{"message_id":11,"from":{"id":121,"first_name":"Myname","username":"mybot"},"chat":{"id":-123,"title":"MyChat","type":"group"},"date":1449092984,"text":"type some text"},"text":"some text"}}
';
$struct = json_decode($json, true);
$update = new Update($struct, 'mybot');
$array_string_after = json_decode($update->toJson(), true);
self::assertEquals($struct, $array_string_after);
}