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diff --git a/js/src/tests/ecma_5/Array/length-01.js b/js/src/tests/ecma_5/Array/length-01.js
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+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ * Contributor:
+ * Jeff Walden <jwalden+code@mit.edu>
+ */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 600392;
+var summary =
+ 'Object.preventExtensions([]).length = 0 should do nothing, not throw';
+
+print(BUGNUMBER + ": " + summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+
+function testEmpty()
+{
+ var a = [];
+ assertEq(a.length, 0);
+ assertEq(Object.preventExtensions(a), a);
+ assertEq(a.length, 0);
+ a.length = 0;
+ assertEq(a.length, 0);
+}
+testEmpty();
+
+function testEmptyStrict()
+{
+ "use strict";
+ var a = [];
+ assertEq(a.length, 0);
+ assertEq(Object.preventExtensions(a), a);
+ assertEq(a.length, 0);
+ a.length = 0;
+ assertEq(a.length, 0);
+}
+testEmptyStrict();
+
+function testNonEmpty()
+{
+ var a = [1, 2, 3];
+ assertEq(a.length, 3);
+ assertEq(Object.preventExtensions(a), a);
+ assertEq(a.length, 3);
+ a.length = 0;
+ assertEq(a.length, 0);
+}
+testNonEmpty();
+
+function testNonEmptyStrict()
+{
+ "use strict";
+ var a = [1, 2, 3];
+ assertEq(a.length, 3);
+ assertEq(Object.preventExtensions(a), a);
+ assertEq(a.length, 3);
+ a.length = 0;
+ assertEq(a.length, 0);
+}
+testNonEmptyStrict();
+
+/******************************************************************************/
+
+if (typeof reportCompare === "function")
+ reportCompare(true, true);
+
+print("All tests passed!");