1 files changed, 29 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Iterator/prototype/filter/underlying-iterator-closed-in-parallel.js b/js/src/tests/test262/built-ins/Iterator/prototype/filter/underlying-iterator-closed-in-parallel.js
new file mode 100644
index 0000000000..8af0579312
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Iterator/prototype/filter/underlying-iterator-closed-in-parallel.js
@@ -0,0 +1,29 @@
+// |reftest| shell-option(--enable-iterator-helpers) skip-if(!this.hasOwnProperty('Iterator')||!xulRuntime.shell) -- iterator-helpers is not enabled unconditionally, requires shell-options
+// Copyright (C) 2023 Michael Ficarra. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-iteratorprototype.filter
+description: >
+  Underlying iterator is closed after calling filter
+info: |
+  %Iterator.prototype%.filter ( predicate )
+
+features: [iterator-helpers]
+flags: []
+---*/
+let iterator = (function* () {
+  for (let i = 0; i < 5; ++i) {
+    yield i;
+  }
+})();
+
+let filtered = iterator.filter(() => true);
+
+iterator.return();
+
+let { value, done } = filtered.next();
+
+assert.sameValue(value, undefined);
+assert.sameValue(done, true);
+
+reportCompare(0, 0);