1 files changed, 36 insertions, 0 deletions
diff --git a/js/src/tests/non262/AsyncIterator/prototype/lazy-methods-from-other-global.js b/js/src/tests/non262/AsyncIterator/prototype/lazy-methods-from-other-global.js
new file mode 100644
index 0000000000..8b7a945fd5
--- /dev/null
+++ b/js/src/tests/non262/AsyncIterator/prototype/lazy-methods-from-other-global.js
@@ -0,0 +1,36 @@
+// |reftest| skip-if(!this.hasOwnProperty('AsyncIterator'))
+
+async function* gen(values) {
+  yield* values;
+}
+
+const otherAsyncIteratorProto = newGlobal({newCompartment: true}).AsyncIterator.prototype;
+
+const methods = [
+  ["map", x => x],
+  ["filter", x => true],
+  ["take", Infinity],
+  ["drop", 0],
+  ["asIndexedPairs", undefined],
+  ["flatMap", x => gen([x])],
+];
+
+(async () => {
+  for (const [method, arg] of methods) {
+    const iterator = gen([1, 2, 3]);
+    const helper = otherAsyncIteratorProto[method].call(iterator, arg);
+
+    for (const expected of [1, 2, 3]) {
+      const {done, value} = await helper.next();
+      assertEq(done, false);
+      assertEq(Array.isArray(value) ? value[1] : value, expected);
+    }
+
+    const {done, value} = await helper.next();
+    assertEq(done, true);
+    assertEq(value, undefined);
+  }
+})();
+
+if (typeof reportCompare === 'function')
+  reportCompare(0, 0);