1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
pub use crate::types::*;
pub mod parser;
pub mod types;
#[cfg(test)]
mod tests {
use crate::types::{Bencode, Bencode::*, Error};
#[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();
assert_eq!(res, Dict(vec![(ByteStr(b"one".to_vec()), Integer(1))]));
assert_eq!(offset, 10);
}
#[test]
fn happy_path_as_dict_nested() {
let (res, offset) = Bencode::from_bytes(b"d4:testli1ei2ei3eee").unwrap();
assert_eq!(
res,
Dict(vec![(
ByteStr(b"test".to_vec()),
List(vec![Integer(1), Integer(2), Integer(3)]),
)])
);
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)
}
}
}