1 files changed, 41 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/values/iteration-mutable.js b/js/src/tests/test262/built-ins/Array/prototype/values/iteration-mutable.js
new file mode 100644
index 0000000000..02a7bce3b3
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/values/iteration-mutable.js
@@ -0,0 +1,41 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-array.prototype.values
+description: >
+  New items in the array are accessible via iteration until iterator is "done".
+info: |
+  When an item is added to the array after the iterator is created but
+  before the iterator is "done" (as defined by 22.1.5.2.1), the new item's
+  value should be accessible via iteration. When an item is added to the
+  array after the iterator is "done", the new item should not be
+  accessible via iteration.
+---*/
+
+var array = [];
+var iterator = array.values();
+var result;
+
+array.push('a');
+
+result = iterator.next();
+assert.sameValue(result.done, false, 'First result `done` flag');
+assert.sameValue(result.value, 'a', 'First result `value`');
+
+result = iterator.next();
+assert.sameValue(result.done, true, 'Exhausted result `done` flag');
+assert.sameValue(result.value, undefined, 'Exhausted result `value`');
+
+array.push('b');
+
+result = iterator.next();
+assert.sameValue(
+  result.done, true,
+  'Exhausted result `done` flag (after push)'
+);
+assert.sameValue(
+  result.value, undefined,
+  'Exhausted result `value` (after push)'
+);
+
+reportCompare(0, 0);