1// Reproduces https://github.com/hawkw/sharded-slab/issues/83
2use memory_stats::memory_stats;
3use sharded_slab::Config;
4use sharded_slab::Slab;
5
6struct CustomConfig;
7impl Config for CustomConfig {
8 const RESERVED_BITS: usize = 1; // This is the cause.
9}
10
11#[test]
12fn reserved_bits_doesnt_leak() {
13 let slab = Slab::new_with_config::<CustomConfig>();
14 for n in 0..1000 {
15 let mem_before = memory_stats().unwrap();
16 let key = slab.insert(0).unwrap();
17 slab.remove(key);
18 let usage = memory_stats().unwrap();
19 eprintln!(
20 "n: {n:<4}\tkey: {key:#08x} rss: {:>16} vs:{:>16}",
21 usage.physical_mem, usage.virtual_mem
22 );
23
24 assert_eq!(mem_before.virtual_mem, usage.virtual_mem);
25 }
26}
27