Skip to content

Add test coverage for WeakGc::new_in constructor #36

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
mrhapile wants to merge 3 commits into
base: main
Choose a base branch
from
Open

Add test coverage for WeakGc::new_in constructor #36

Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
ae00a45
tests: add coverage for WeakGc constructor (weak.rs)
mrhapile Mar 6, 2026
128745b
added test for collection behaviour
mrhapile Mar 7, 2026
b4b50e7
tests: remove redundant WeakGc constructor test
mrhapile Mar 11, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
25 changes: 25 additions & 0 deletions oscars/src/collectors/mark_sweep/tests.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -627,3 +627,28 @@ mod gc_edge_cases {
collector.collect();
}
}

/// Tests for the standalone WeakGc pointer behavior.
mod weak_gc_tests {
use crate::collectors::mark_sweep::MarkSweepGarbageCollector;
use crate::collectors::mark_sweep::cell::GcRefCell;
use crate::collectors::mark_sweep::pointers::{Gc, WeakGc};
#[test]
fn weak_gc_ephemeron_swept_after_strong_drop() {
let collector = &mut MarkSweepGarbageCollector::default()
.with_arena_size(256)
.with_heap_threshold(512);

let strong = Gc::new_in(GcRefCell::new(42u64), collector);
let _weak = WeakGc::new_in(&strong, collector);

drop(strong);
collector.collect();

assert_eq!(
collector.allocator.borrow().arenas_len(),
0,
"WeakGc ephemeron leaked after strong reference dropped"
);
}
}
Loading