public function testChatType()
{
$json = '
{"update_id":137809335,
"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"}}
';
$update = new Update(json_decode($json, true), 'mybot');
$reply_to_message = $update->getMessage()->getReplyToMessage();
self::assertNull($reply_to_message->getReplyToMessage());
}