1 files changed, 34 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/concat/S15.4.4.4_A3_T1.js b/js/src/tests/test262/built-ins/Array/prototype/concat/S15.4.4.4_A3_T1.js
new file mode 100644
index 0000000000..34ef8926c9
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/concat/S15.4.4.4_A3_T1.js
@@ -0,0 +1,34 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-array.prototype.concat
+info: "[[Get]] from not an inherited property"
+es5id: 15.4.4.4_A3_T1
+description: >
+    [[Prototype]] of Array instance is Array.prototype, [[Prototype]
+    of Array.prototype is Object.prototype
+---*/
+
+Array.prototype[1] = 1;
+var x = [0];
+x.length = 2;
+var arr = x.concat();
+
+assert.sameValue(arr[0], 0, 'The value of arr[0] is expected to be 0');
+assert.sameValue(arr[1], 1, 'The value of arr[1] is expected to be 1');
+assert.sameValue(arr.hasOwnProperty('1'), true, 'arr.hasOwnProperty("1") must return true');
+
+Object.prototype[1] = 1;
+Object.prototype.length = 2;
+Object.prototype.concat = Array.prototype.concat;
+x = {
+  0: 0
+};
+var arr = x.concat();
+
+assert.sameValue(arr[0], x, 'The value of arr[0] is expected to equal the value of x');
+assert.sameValue(arr[1], 1, 'The value of arr[1] is expected to be 1');
+assert.sameValue(arr.hasOwnProperty('1'), false, 'arr.hasOwnProperty("1") must return false');
+
+reportCompare(0, 0);