1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/tests/non262/AsyncIterator/prototype/reduce/reducer-throws-iterator-closed.js b/js/src/tests/non262/AsyncIterator/prototype/reduce/reducer-throws-iterator-closed.js
new file mode 100644
index 0000000000..2a55a89850
--- /dev/null
+++ b/js/src/tests/non262/AsyncIterator/prototype/reduce/reducer-throws-iterator-closed.js
@@ -0,0 +1,24 @@
+// |reftest| skip-if(!this.hasOwnProperty('AsyncIterator')) 
+
+class TestIterator extends AsyncIterator {
+  next() {
+    return Promise.resolve({ done: this.closed, value: undefined });
+  }
+
+  closed = false;
+  return() {
+    this.closed = true;
+  }
+}
+
+const reducer = (x, y) => { throw new Error(); };
+const iter = new TestIterator();
+
+assertEq(iter.closed, false);
+iter.reduce(reducer).then(() => assertEq(true, false, 'expected error'), err => {
+  assertEq(err instanceof Error, true);
+  assertEq(iter.closed, true);
+});
+
+if (typeof reportCompare === 'function')
+  reportCompare(0, 0);