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use std::rt::io::Reader;
use std::rt::io::mem::MemReader;
use std::rt::io::extensions::ReaderByteConversions;


trait Decodable {
    fn decode(r: &Reader) -> Self;
}

impl Decodable for u8 {
    fn decode(r: &Reader) -> u8 {
        return r.read_u8_();
    }
}

impl Decodable for u16 {
    fn decode(r: &Reader) -> u16 {
        return r.read_be_u16_();
    }
}

#[test]
fn test_encode_primitives() {
    let buf: ~Reader = ~MemReader::new(~[17u8, 1u8, 3u8]) as ~Reader:Send;
    {
        let ret: u8 = Decodable::decode(buf);
        assert_eq!(ret, 17u8);
    }
    {
        let ret: u16 = Decodable::decode(buf);
        assert_eq!(ret, 259u16);
    }
}