1 files changed, 34 insertions, 0 deletions
diff --git a/deps/v8/test/mjsunit/es6/set-iterator-10.js b/deps/v8/test/mjsunit/es6/set-iterator-10.js
new file mode 100644
index 0000000000..ec094d20d0
--- /dev/null
+++ b/deps/v8/test/mjsunit/es6/set-iterator-10.js
@@ -0,0 +1,34 @@
+// Copyright 2018 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --allow-natives-syntax --no-stress-opt
+
+// This tests the interaction between the MapIterator protector and SetIterator
+// protector.
+
+var map = new Map([[1,2], [2,3], [3,4]]);
+assertTrue(%MapIteratorProtector());
+
+var set = new Set([1,2,3]);
+assertTrue(%SetIteratorProtector());
+
+// This changes %IteratorPrototype%. No more tests should be run after this in
+// the same instance.
+var iterator = set.keys();
+// iterator object --> %SetIteratorPrototype% --> %IteratorPrototype%
+iterator.__proto__.__proto__[Symbol.iterator] =
+  () => ({next: () => ({done: true})});
+
+assertFalse(%MapIteratorProtector());
+assertEquals([[1,2], [2,3], [3,4]], [...map]);
+assertEquals([], [...map.entries()]);
+assertEquals([], [...map.keys()]);
+assertEquals([], [...map.values()]);
+
+assertFalse(%SetIteratorProtector());
+assertEquals([], [...set.entries()]);
+assertEquals([1,2,3], [...set]);
+assertEquals([], [...set.keys()]);
+assertEquals([], [...set.values()]);
+assertEquals([], [...iterator]);