forked from rayon-rs/rayon
-
Notifications
You must be signed in to change notification settings - Fork 6
/
test.rs
59 lines (46 loc) · 1.17 KB
/
test.rs
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
#![cfg(test)]
use api::*;
use rand::{Rng, SeedableRng, XorShiftRng};
fn quick_sort<T:PartialOrd+Send>(v: &mut [T]) {
if v.len() <= 1 {
return;
}
let mid = partition(v);
let (lo, hi) = v.split_at_mut(mid);
join(|| quick_sort(lo),
|| quick_sort(hi));
}
fn partition<T:PartialOrd+Send>(v: &mut [T]) -> usize {
let pivot = v.len() - 1;
let mut i = 0;
for j in 0..pivot {
if v[j] <= v[pivot] {
v.swap(i, j);
i += 1;
}
}
v.swap(i, pivot);
i
}
#[test]
fn sort() {
let mut rng = XorShiftRng::from_seed([0, 1, 2, 3]);
let mut data: Vec<_> = (0..6*1024).map(|_| rng.next_u32()).collect();
initialize();
quick_sort(&mut data);
let mut sorted_data = data.clone();
sorted_data.sort();
assert_eq!(data, sorted_data);
}
#[test]
fn sort_in_pool() {
let mut rng = XorShiftRng::from_seed([0, 1, 2, 3]);
let mut data: Vec<_> = (0..12*1024).map(|_| rng.next_u32()).collect();
let pool = ThreadPool::new();
pool.install(|| {
quick_sort(&mut data);
});
let mut sorted_data = data.clone();
sorted_data.sort();
assert_eq!(data, sorted_data);
}