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Auto merge of #87843 - kornelski:try_reserve, r=m-ou-se

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TryReserveErrorKind tests and inline

A small follow-up to #87408
This commit is contained in:
bors
2021-08-12 01:16:22 +00:00
parent ccffcafd55 7dca8eb565
commit 25d3e14da7
6 changed files with 276 additions and 295 deletions
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19
library/std/src/collections/hash/map/tests.rs
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@@ -1,6 +1,7 @@
use super::Entry::{Occupied, Vacant};
use super::HashMap;
use super::RandomState;
use crate::assert_matches::assert_matches;
use crate::cell::RefCell;
use rand::{thread_rng, Rng};
use realstd::collections::TryReserveErrorKind::*;
@@ -821,15 +822,17 @@ fn test_try_reserve() {
const MAX_USIZE: usize = usize::MAX;
if let Err(CapacityOverflow) = empty_bytes.try_reserve(MAX_USIZE).map_err(|e| e.kind()) {
} else {
panic!("usize::MAX should trigger an overflow!");
}
assert_matches!(
empty_bytes.try_reserve(MAX_USIZE).map_err(|e| e.kind()),
Err(CapacityOverflow),
"usize::MAX should trigger an overflow!"
);
if let Err(AllocError { .. }) = empty_bytes.try_reserve(MAX_USIZE / 8).map_err(|e| e.kind()) {
} else {
panic!("usize::MAX / 8 should trigger an OOM!")
}
assert_matches!(
empty_bytes.try_reserve(MAX_USIZE / 8).map_err(|e| e.kind()),
Err(AllocError { .. }),
"usize::MAX / 8 should trigger an OOM!"
);
}
#[test]