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+/* The contents of this file are subject to the Netscape Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ *
+ * The Original Code is Mozilla Communicator client code, released March
+ * 31, 1998.
+ *
+ * The Initial Developer of the Original Code is Netscape Communications
+ * Corporation. Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation. All
+ * Rights Reserved.
+ *
+ * Contributor(s): 
+ * 
+ */
+/**
+    File Name:          15.4.5.2-2.js
+    ECMA Section:       Array.length
+    Description:
+    15.4.5.2 length
+    The length property of this Array object is always numerically greater
+    than the name of every property whose name is an array index.
+
+    The length property has the attributes { DontEnum, DontDelete }.
+
+    This test verifies that the Array.length property is not Read Only.
+
+    Author:             christine@netscape.com
+    Date:               12 november 1997
+*/
+
+    var SECTION = "15.4.5.2-2";
+    var VERSION = "ECMA_1";
+    startTest();
+    var TITLE   = "Array.length";
+
+    writeHeaderToLog( SECTION + " "+ TITLE);
+
+    var testcases = new Array();
+
+    addCase( new Array(), 0, Math.pow(2,14), Math.pow(2,14) );
+
+    addCase( new Array(), 0, 1, 1 );
+
+    addCase( new Array(Math.pow(2,12)), Math.pow(2,12), 0, 0 );
+    addCase( new Array(Math.pow(2,13)), Math.pow(2,13), Math.pow(2,12), Math.pow(2,12) );
+    addCase( new Array(Math.pow(2,12)), Math.pow(2,12), Math.pow(2,12), Math.pow(2,12) );
+    addCase( new Array(Math.pow(2,14)), Math.pow(2,14), Math.pow(2,12), Math.pow(2,12) )
+
+    // some tests where array is not empty
+    // array is populated with strings
+    for ( var arg = "", i = 0; i < Math.pow(2,12); i++ ) {
+        arg +=  String(i) + ( i != Math.pow(2,12)-1 ? "," : "" );
+
+    }
+//      print(i +":"+arg);
+
+    var a = eval( "new Array("+arg+")" );
+
+    addCase( a, i, i, i );
+    addCase( a, i, Math.pow(2,12)+i+1, Math.pow(2,12)+i+1, true );
+    addCase( a, Math.pow(2,12)+5, 0, 0, true );
+
+    test();
+
+function addCase( object, old_len, set_len, new_len, checkitems ) {
+    object.length = set_len;
+
+    testcases[testcases.length] = new TestCase( SECTION,
+        "array = new Array("+ old_len+"); array.length = " + set_len +
+        "; array.length",
+        new_len,
+        object.length );
+
+    if ( checkitems ) {
+    // verify that items between old and newlen are all undefined
+    if ( new_len < old_len ) {
+        var passed = true;
+        for ( var i = new_len; i < old_len; i++ ) {
+            if ( object[i] != void 0 ) {
+                passed = false;
+            }
+        }
+        testcases[testcases.length] = new TestCase( SECTION,
+            "verify that array items have been deleted",
+            true,
+            passed );
+    }
+    if ( new_len > old_len ) {
+        var passed = true;
+        for ( var i = old_len; i < new_len; i++ ) {
+            if ( object[i] != void 0 ) {
+                passed = false;
+            }
+        }
+        testcases[testcases.length] = new TestCase( SECTION,
+            "verify that new items are undefined",
+            true,
+            passed );
+    }
+    }
+
+}
+
+function test() {
+    for ( tc=0; tc < testcases.length; tc++ ) {
+        testcases[tc].passed = writeTestCaseResult(
+                            testcases[tc].expect,
+                            testcases[tc].actual,
+                            testcases[tc].description +" = "+
+                            testcases[tc].actual );
+
+        testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value ";
+    }
+    stopTest();
+    return ( testcases );
+}