1 files changed, 30 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Iterator/prototype/reduce/next-method-throws.js b/js/src/tests/test262/built-ins/Iterator/prototype/reduce/next-method-throws.js
new file mode 100644
index 0000000000..6907971b8b
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Iterator/prototype/reduce/next-method-throws.js
@@ -0,0 +1,30 @@
+// |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.reduce
+description: >
+  Underlying iterator has throwing next method
+info: |
+  %Iterator.prototype%.reduce ( reducer )
+
+features: [iterator-helpers]
+flags: []
+---*/
+class ThrowingIterator extends Iterator {
+  next() {
+    throw new Test262Error();
+  }
+}
+
+let iterator = new ThrowingIterator();
+
+assert.throws(Test262Error, function () {
+  iterator.reduce(() => {});
+});
+
+assert.throws(Test262Error, function () {
+  iterator.reduce(() => {}, 0);
+});
+
+reportCompare(0, 0);