1 files changed, 12 insertions, 0 deletions
diff --git a/js/src/tests/non262/AsyncIterator/prototype/iterator-helper-methods-throw-on-generators.js b/js/src/tests/non262/AsyncIterator/prototype/iterator-helper-methods-throw-on-generators.js
new file mode 100644
index 0000000000..f79fb7d842
--- /dev/null
+++ b/js/src/tests/non262/AsyncIterator/prototype/iterator-helper-methods-throw-on-generators.js
@@ -0,0 +1,12 @@
+// |reftest| skip-if(!this.hasOwnProperty('AsyncIterator'))
+
+async function *gen() { yield 'value'; }
+
+const asyncIteratorHelperProto = Object.getPrototypeOf(gen().map(x => x));
+
+assertThrowsInstanceOf(() => asyncIteratorHelperProto.next.call(gen()), TypeError);
+assertThrowsInstanceOf(() => asyncIteratorHelperProto.return.call(gen()), TypeError);
+assertThrowsInstanceOf(() => asyncIteratorHelperProto.throw.call(gen()), TypeError);
+
+if (typeof reportCompare == 'function')
+  reportCompare(0, 0);