1 files changed, 52 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/object-arg/iterated-array-with-modified-array-iterator.js b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/object-arg/iterated-array-with-modified-array-iterator.js
new file mode 100644
index 0000000000..fe1f672adb
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/object-arg/iterated-array-with-modified-array-iterator.js
@@ -0,0 +1,52 @@
+// |reftest| shell-option(--enable-float16array)
+// Copyright (C) 2024 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-typedarray
+description: >
+  Modifications to input array after iteration are handled correctly.
+info: |
+  TypedArray ( ...args )
+
+  ...
+  6. Else,
+    ...
+    b. If firstArgument is an Object, then
+      ...
+      iv. Else,
+        ...
+        2. Let usingIterator be ? GetMethod(firstArgument, @@iterator).
+        3. If usingIterator is not undefined, then
+          a. Let values be ? IteratorToList(? GetIteratorFromMethod(firstArgument, usingIterator)).
+          b. Perform ? InitializeTypedArrayFromList(O, values).
+        ...
+includes: [testTypedArray.js]
+features: [TypedArray]
+---*/
+
+let ArrayIteratorPrototype = Object.getPrototypeOf([].values());
+let values;
+
+// Modify the built-in ArrayIteratorPrototype `next` method.
+ArrayIteratorPrototype.next = function() {
+  let done = values.length === 0;
+  let value = values.pop();
+  return {value, done};
+};
+
+testWithTypedArrayConstructors(function(TypedArray) {
+  // Reset `values` array.
+  values = [1, 2, 3, 4];
+
+  // Constructor called with array which uses the modified array iterator.
+  var ta = new TypedArray([0]);
+
+  assert.sameValue(ta.length, 4);
+  assert.sameValue(ta[0], 4);
+  assert.sameValue(ta[1], 3);
+  assert.sameValue(ta[2], 2);
+  assert.sameValue(ta[3], 1);
+});
+
+reportCompare(0, 0);