typhoon-protocol 0.1.0

A sample implementation of TYPHOON protocol
Documentation 
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

use std::collections::hash_map::DefaultHasher;
use std::hash::{Hash, Hasher};

use crate::bytes::{ByteBuffer, FixedByteBuffer};

// ── Construction ─────────────────────────────────────────────────────────────

#[test]
fn test_zeroed() {
    let buf = FixedByteBuffer::<8>::zeroed();
    assert_eq!(buf.slice(), &[0u8; 8]);
}

#[test]
fn test_from_array() {
    let arr = [1u8, 2, 3, 4];
    let buf = FixedByteBuffer::<4>::from_array(arr);
    assert_eq!(buf.slice(), &[1, 2, 3, 4]);
}

#[test]
fn test_as_array() {
    let arr = [10u8, 20, 30];
    let buf = FixedByteBuffer::<3>::from_array(arr);
    assert_eq!(buf.as_array(), &arr);
}

#[test]
fn test_default_is_zeroed() {
    let buf = FixedByteBuffer::<6>::default();
    assert_eq!(buf.slice(), &[0u8; 6]);
}

#[test]
fn test_copy_semantics() {
    let buf = FixedByteBuffer::<4>::from_array([1, 2, 3, 4]);
    let copy = buf;
    let _ = copy.as_array(); // ensure copy compiles fine
    // Original is unchanged (Copy not Clone-from-ref).
    assert_eq!(buf.slice(), &[1, 2, 3, 4]);
}

// ── ByteBuffer trait ─────────────────────────────────────────────────────────

#[test]
fn test_len() {
    assert_eq!(FixedByteBuffer::<12>::zeroed().len(), 12);
    assert_eq!(FixedByteBuffer::<1>::zeroed().len(), 1);
}

#[test]
fn test_get() {
    let buf = FixedByteBuffer::<4>::from_array([10, 20, 30, 40]);
    assert_eq!(*buf.get(0), 10);
    assert_eq!(*buf.get(3), 40);
}

#[test]
#[should_panic(expected = "index out of bounds")]
fn test_get_out_of_bounds() {
    let buf = FixedByteBuffer::<4>::zeroed();
    let _ = buf.get(4);
}

#[test]
fn test_slice() {
    let arr = [5u8, 6, 7, 8];
    let buf = FixedByteBuffer::<4>::from_array(arr);
    assert_eq!(buf.slice(), &arr);
}

#[test]
fn test_slice_start() {
    let buf = FixedByteBuffer::<4>::from_array([1, 2, 3, 4]);
    assert_eq!(buf.slice_start(2), &[3, 4]);
    assert_eq!(buf.slice_start(0), &[1, 2, 3, 4]);
}

#[test]
fn test_slice_end() {
    let buf = FixedByteBuffer::<4>::from_array([1, 2, 3, 4]);
    assert_eq!(buf.slice_end(2), &[1, 2]);
    assert_eq!(buf.slice_end(4), &[1, 2, 3, 4]);
}

#[test]
fn test_slice_both() {
    let buf = FixedByteBuffer::<6>::from_array([0, 1, 2, 3, 4, 5]);
    assert_eq!(buf.slice_both(1, 4), &[1, 2, 3]);
    assert_eq!(buf.slice_both(0, 6), &[0, 1, 2, 3, 4, 5]);
}

#[test]
fn test_split() {
    let buf = FixedByteBuffer::<4>::from_array([1, 2, 3, 4]);
    let (a, b) = buf.split(2);
    assert_eq!(a, &[1, 2]);
    assert_eq!(b, &[3, 4]);
}

#[test]
fn test_as_ref() {
    let buf = FixedByteBuffer::<3>::from_array([9, 8, 7]);
    let r: &[u8] = buf.as_ref();
    assert_eq!(r, &[9, 8, 7]);
}

// ── Conversions ──────────────────────────────────────────────────────────────

#[test]
fn test_from_arr_trait() {
    let buf: FixedByteBuffer<4> = [1u8, 2, 3, 4].into();
    assert_eq!(buf.slice(), &[1, 2, 3, 4]);
}

#[test]
fn test_from_arr_ref_trait() {
    let arr = [7u8, 8, 9];
    let buf = FixedByteBuffer::<3>::from(&arr);
    assert_eq!(buf.slice(), &[7, 8, 9]);
}

#[test]
fn test_into_array() {
    let buf = FixedByteBuffer::<3>::from_array([11, 22, 33]);
    let arr: [u8; 3] = buf.into();
    assert_eq!(arr, [11, 22, 33]);
}

// ── Equality, hashing ────────────────────────────────────────────────────────

#[test]
fn test_partial_eq() {
    let a = FixedByteBuffer::<4>::from_array([1, 2, 3, 4]);
    let b = FixedByteBuffer::<4>::from_array([1, 2, 3, 4]);
    let c = FixedByteBuffer::<4>::from_array([1, 2, 3, 5]);
    assert_eq!(a, b);
    assert_ne!(a, c);
}

#[test]
fn test_hash_equal_for_equal_values() {
    let a = FixedByteBuffer::<4>::from_array([1, 2, 3, 4]);
    let b = FixedByteBuffer::<4>::from_array([1, 2, 3, 4]);
    let mut ha = DefaultHasher::new();
    let mut hb = DefaultHasher::new();
    a.hash(&mut ha);
    b.hash(&mut hb);
    assert_eq!(ha.finish(), hb.finish());
}

// ── Formatting ───────────────────────────────────────────────────────────────

#[test]
fn test_display_hex() {
    let buf = FixedByteBuffer::<3>::from_array([0xde, 0xad, 0xbe]);
    assert_eq!(format!("{buf}"), "deadbe");
}

#[test]
fn test_debug_includes_length() {
    let buf = FixedByteBuffer::<2>::from_array([0, 1]);
    let s = format!("{buf:?}");
    assert!(s.contains("length"), "debug output should include 'length': {s}");
}