1 files changed, 27 insertions, 0 deletions
diff --git a/test/built-ins/Array/prototype/concat/S15.4.4.4_A4.2.js b/test/built-ins/Array/prototype/concat/S15.4.4.4_A4.2.js
new file mode 100644
index 000000000..ed2576922
--- /dev/null
+++ b/test/built-ins/Array/prototype/concat/S15.4.4.4_A4.2.js
@@ -0,0 +1,27 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: The length property of concat does not have the attribute DontDelete
+es5id: 15.4.4.4_A4.2
+description: Checking use hasOwnProperty, delete
+flags: [noStrict]
+includes: [$FAIL.js]
+---*/
+
+//CHECK#1
+if (Array.prototype.concat.hasOwnProperty('length') !== true) {
+  $FAIL('#1: Array.prototype.concat.hasOwnProperty(\'length\') === true. Actual: ' + (Array.prototype.concat.hasOwnProperty('length')));
+}
+
+delete Array.prototype.concat.length;
+
+//CHECK#2
+if (Array.prototype.concat.hasOwnProperty('length') !== false) {
+  $ERROR('#2: delete Array.prototype.concat.length; Array.prototype.concat.hasOwnProperty(\'length\') === false. Actual: ' + (Array.prototype.concat.hasOwnProperty('length')));
+}
+
+//CHECK#3
+if (Array.prototype.concat.length === undefined) {
+  $ERROR('#3: delete Array.prototype.concat.length; Array.prototype.concat.length !== undefined');
+}