pub use crate::types::*;
pub mod error;
pub mod parser;
pub mod types;
#[cfg(test)]
mod tests {
use crate::error::Error;
use crate::types::{Bencode, Bencode::*};
use std::collections::HashMap;
#[test]
fn happy_path_as_int() {
let (res1, offset1) = Bencode::from_bytes(b"i10e").unwrap();
assert_eq!(res1, Integer(10));
assert_eq!(offset1, 4);
let (res2, offset2) = Bencode::from_bytes(b"i0005e").unwrap();
assert_eq!(res2, Integer(5));
assert_eq!(offset2, 6);
let (res3, offset3) = Bencode::from_bytes(b"i123456e").unwrap();
assert_eq!(res3, Integer(123456));
assert_eq!(offset3, 8);
}
#[test]
fn happy_path_as_bstr() {
let (res1, offset1) = Bencode::from_bytes(b"1:a").unwrap();
assert_eq!(res1, ByteStr(b"a".to_vec()));
assert_eq!(offset1, 3);
let (res2, offset2) = Bencode::from_bytes(b"3:apple").unwrap();
assert_eq!(ByteStr(b"app".to_vec()), res2);
assert_eq!(5, offset2);
let (res3, offset3) = Bencode::from_bytes(&[51, 58, 68, 111, 103]).unwrap();
assert_eq!(ByteStr(b"Dog".to_vec()), res3);
assert_eq!(5, offset3);
let (res4, offset4) = Bencode::from_bytes(&[55, 58, 0, 1, 2, 3, 4, 5, 6]).unwrap();
assert_eq!(ByteStr(vec![0, 1, 2, 3, 4, 5, 6]), res4);
assert_eq!(9, offset4);
}
#[test]
fn happy_path_as_list() {
let (res1, offset1) = Bencode::from_bytes(b"li1ei2ei3ee").unwrap();
assert_eq!(res1, List(vec![Integer(1), Integer(2), Integer(3)]));
assert_eq!(offset1, 11);
let (res2, offset2) = Bencode::from_bytes(b"li10e5:applee").unwrap();
assert_eq!(res2, List(vec![Integer(10), ByteStr(b"apple".to_vec())]));
assert_eq!(offset2, 13);
}
#[test]
fn happy_path_as_list_nested() {
let (res, offset) = Bencode::from_bytes(b"li1eli2eei3ee").unwrap();
assert_eq!(
res,
List(vec![Integer(1), List(vec![Integer(2)]), Integer(3)])
);
assert_eq!(offset, 13);
}
#[test]
fn happy_path_as_dict() {
let (res, offset) = Bencode::from_bytes(b"d3:onei1ee").unwrap();
let mut expected_map: HashMap<Vec<u8>, Bencode> = HashMap::new();
expected_map.insert(b"one".to_vec(), Integer(1));
assert_eq!(res, Dict(expected_map));
assert_eq!(offset, 10);
}
#[test]
fn happy_path_as_dict_nested() {
let (res, offset) = Bencode::from_bytes(b"d4:testli1ei2ei3eee").unwrap();
let mut expected_map: HashMap<Vec<u8>, Bencode> = HashMap::new();
expected_map.insert(
b"test".to_vec(),
List(vec![Integer(1), Integer(2), Integer(3)]),
);
assert_eq!(res, Dict(expected_map));
assert_eq!(offset, 19);
}
#[test]
fn error_test_as_int() {
assert_eq!(
Bencode::from_bytes(b"i12345").err().unwrap(),
Error::MissingSentinel
);
assert_eq!(
Bencode::from_bytes(b"i1ae").err().unwrap(),
Error::InvalidIntegerString
);
assert_eq!(
Bencode::from_bytes(&[105, 48, 49, 128, 101]).err().unwrap(),
Error::InvalidASCIIBytes
);
assert_eq!(
Bencode::from_bytes(b"ie").err().unwrap(),
Error::InvalidIntegerString
);
}
#[test]
fn error_test_as_bstr() {
assert_eq!(
Bencode::from_bytes(b"123").err().unwrap(),
Error::MissingSentinel
);
assert_eq!(
Bencode::from_bytes(b"9999999lalalala").err().unwrap(),
Error::InvalidIntegerString
);
assert_eq!(
Bencode::from_bytes(b"five:hello").err().unwrap(),
Error::NotAValidBencodeByte
);
assert_eq!(
Bencode::from_bytes(&[48, 49, 50, 128, 58]).err().unwrap(),
Error::InvalidASCIIBytes
);
assert_eq!(
Bencode::from_bytes(b"9999:yikes").err().unwrap(),
Error::ByteStringLengthOverflow
);
}
#[test]
fn error_test_as_list() {
assert_eq!(
Bencode::from_bytes(b"li1ei2ei3i4ei5ee").err().unwrap(),
Error::InvalidIntegerString
);
assert_eq!(
Bencode::from_bytes(b"li1ei2ei3ei4ei5e").err().unwrap(),
Error::MissingSentinel
);
assert_eq!(
Bencode::from_bytes(b"l4:hie").err().unwrap(),
Error::ByteStringLengthOverflow
);
}
#[test]
fn simple_integer() {
let input = b"i10e";
if let Ok((res, _)) = Bencode::from_bytes(input) {
assert_eq!(Bencode::Integer(10), res)
}
}
#[test]
fn simple_enum_unwrapping() {
let bint = Bencode::Integer(10);
assert_eq!(&10, bint.as_int().unwrap());
let bstr = Bencode::ByteStr(b"foo".to_vec());
assert_eq!(&b"foo".to_vec(), bstr.as_bstr().unwrap());
let blist = Bencode::List(vec![Bencode::Integer(1), Bencode::Integer(2)]);
let expected_list = vec![Bencode::Integer(1), Bencode::Integer(2)];
let unwrapped_list = blist.as_list().unwrap();
assert_eq!(unwrapped_list, &expected_list);
assert_eq!(&1, unwrapped_list.get(0).unwrap().as_int().unwrap());
let mut dict = HashMap::new();
dict.insert(b"foo".to_vec(), ByteStr(b"bar".to_vec()));
let bdict = Bencode::Dict(dict);
let mut expected_dict = HashMap::new();
let unwrapped_dict = bdict.as_dict().unwrap();
expected_dict.insert(b"foo".to_vec(), ByteStr(b"bar".to_vec()));
assert_eq!(&expected_dict, bdict.as_dict().unwrap());
assert_eq!(
&b"bar".to_vec(),
unwrapped_dict
.get(&b"foo".to_vec())
.unwrap()
.as_bstr()
.unwrap()
);
}
}