1 files changed, 10 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/gc/finalizationRegistry-gray.js b/js/src/jit-test/tests/gc/finalizationRegistry-gray.js
new file mode 100644
index 0000000000..5411a1a9ad
--- /dev/null
+++ b/js/src/jit-test/tests/gc/finalizationRegistry-gray.js
@@ -0,0 +1,10 @@
+// Test gray finalization registry is correctly barrired.
+target = {};
+registry = new FinalizationRegistry(value => undefined);
+registry.register(target, 1);
+grayRoot()[0] = registry;
+registry = undefined;
+gc(); // Registry is now marked gray.
+target = undefined;
+gc(); // Target dies, registry is queued.
+drainJobQueue();