1 files changed, 49 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/concat/create-proto-from-ctor-realm-non-array.js b/js/src/tests/test262/built-ins/Array/prototype/concat/create-proto-from-ctor-realm-non-array.js
new file mode 100644
index 0000000000..eaf05ad755
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/concat/create-proto-from-ctor-realm-non-array.js
@@ -0,0 +1,49 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-array.prototype.concat
+description: Accept non-Array constructors from other realms
+info: |
+    1. Let O be ? ToObject(this value).
+    2. Let A be ? ArraySpeciesCreate(O, 0).
+    [...]
+
+    9.4.2.3 ArraySpeciesCreate
+
+    [...]
+    5. Let C be ? Get(originalArray, "constructor").
+    6. If IsConstructor(C) is true, then
+       a. Let thisRealm be the current Realm Record.
+       b. Let realmC be ? GetFunctionRealm(C).
+       c. If thisRealm and realmC are not the same Realm Record, then
+          i. If SameValue(C, realmC.[[Intrinsics]].[[%Array%]]) is true, let C
+             be undefined.
+    [...]
+features: [cross-realm, Symbol.species]
+---*/
+
+var array = [];
+var callCount = 0;
+var CustomCtor = function() {};
+var OObject = $262.createRealm().global.Object;
+var speciesDesc = {
+  get: function() {
+    callCount += 1;
+  }
+};
+var result;
+array.constructor = OObject;
+OObject[Symbol.species] = CustomCtor;
+
+Object.defineProperty(Array, Symbol.species, speciesDesc);
+
+result = array.concat();
+
+assert.sameValue(
+  Object.getPrototypeOf(result),
+  CustomCtor.prototype,
+  'Object.getPrototypeOf(array.concat()) returns CustomCtor.prototype'
+);
+assert.sameValue(callCount, 0, 'The value of callCount is expected to be 0');
+
+reportCompare(0, 0);