public function testUpdateCast() { $json = ' {"update_id":137809336, "message":{"message_id":4479,"from":{"id":123,"first_name":"John","username":"******"},"chat":{"id":-123,"title":"MyChat","type":"group"},"date":1449092987,"reply_to_message":{"message_id":11,"from":{"id":121,"first_name":"Myname","username":"******"},"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); $this->assertEquals($struct, $array_string_after); }