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
|
// Tests that attribute options produce the correct results.
// Miri cannot discover benchmarks.
#![cfg(not(miri))]
use std::sync::atomic::{AtomicUsize, Ordering::SeqCst};
use divan::Divan;
static CHILD1_ITERS: AtomicUsize = AtomicUsize::new(0);
static CHILD2_ITERS: AtomicUsize = AtomicUsize::new(0);
static CHILD3_ITERS: AtomicUsize = AtomicUsize::new(0);
#[divan::bench_group(sample_count = 10, sample_size = 50)]
mod parent {
use super::*;
// 10 × 1 = 10
#[divan::bench_group(sample_size = 1)]
mod child1 {
use super::*;
#[divan::bench]
fn bench() {
CHILD1_ITERS.fetch_add(1, SeqCst);
}
}
// 42 × 50 = 2100
#[divan::bench_group(sample_count = 42)]
mod child2 {
use super::*;
#[divan::bench]
fn bench() {
CHILD2_ITERS.fetch_add(1, SeqCst);
}
}
mod child3 {
use super::*;
// 1 × 50 = 50
#[divan::bench(sample_count = 1)]
fn bench() {
CHILD3_ITERS.fetch_add(1, SeqCst);
}
}
}
#[test]
fn iter_count() {
Divan::default().run_benches();
assert_eq!(CHILD1_ITERS.load(SeqCst), 10);
assert_eq!(CHILD2_ITERS.load(SeqCst), 2100);
assert_eq!(CHILD3_ITERS.load(SeqCst), 50);
}
|
