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
use rustc_data_structures::small_vec::SmallVec;
pub type SmallVector<T> = SmallVec<[T; 1]>;
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_len() {
let v: SmallVector<isize> = SmallVector::new();
assert_eq!(0, v.len());
assert_eq!(1, SmallVector::one(1).len());
assert_eq!(5, SmallVector::many(vec![1, 2, 3, 4, 5]).len());
}
#[test]
fn test_push_get() {
let mut v = SmallVector::new();
v.push(1);
assert_eq!(1, v.len());
assert_eq!(1, v[0]);
v.push(2);
assert_eq!(2, v.len());
assert_eq!(2, v[1]);
v.push(3);
assert_eq!(3, v.len());
assert_eq!(3, v[2]);
}
#[test]
fn test_from_iter() {
let v: SmallVector<isize> = (vec![1, 2, 3]).into_iter().collect();
assert_eq!(3, v.len());
assert_eq!(1, v[0]);
assert_eq!(2, v[1]);
assert_eq!(3, v[2]);
}
#[test]
fn test_move_iter() {
let v = SmallVector::new();
let v: Vec<isize> = v.into_iter().collect();
assert_eq!(v, Vec::new());
let v = SmallVector::one(1);
assert_eq!(v.into_iter().collect::<Vec<_>>(), [1]);
let v = SmallVector::many(vec![1, 2, 3]);
assert_eq!(v.into_iter().collect::<Vec<_>>(), [1, 2, 3]);
}
#[test]
#[should_panic]
fn test_expect_one_zero() {
let _: isize = SmallVector::new().expect_one("");
}
#[test]
#[should_panic]
fn test_expect_one_many() {
SmallVector::many(vec![1, 2]).expect_one("");
}
#[test]
fn test_expect_one_one() {
assert_eq!(1, SmallVector::one(1).expect_one(""));
assert_eq!(1, SmallVector::many(vec![1]).expect_one(""));
}
}