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-rw-r--r--tests/specs/run/finalization_registry/finalization_registry.js20
1 files changed, 20 insertions, 0 deletions
diff --git a/tests/specs/run/finalization_registry/finalization_registry.js b/tests/specs/run/finalization_registry/finalization_registry.js
new file mode 100644
index 000000000..ee9dc384f
--- /dev/null
+++ b/tests/specs/run/finalization_registry/finalization_registry.js
@@ -0,0 +1,20 @@
+// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
+"use strict";
+
+function assertEquals(a, b) {
+ if (a === b) return;
+ throw a + " does not equal " + b;
+}
+
+const registry = new FinalizationRegistry((value) => {
+ assertEquals(value, "called!");
+ Deno[Deno.internal].core.print("FinalizationRegistry called!\n");
+});
+
+(function () {
+ let x = {};
+ registry.register(x, "called!");
+ x = null;
+})();
+
+gc();