diff --git a/js/tests/ecma_3/Array/regress-101488.js b/js/tests/ecma_3/Array/regress-101488.js
new file mode 100644
index 000000000000..9c6529c3ab2b
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+++ b/js/tests/ecma_3/Array/regress-101488.js
@@ -0,0 +1,146 @@
+/*
+* 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.org code.
+*
+* 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): igor@icesoft.no, pschwartau@netscape.com
+* Date: 24 September 2001
+*
+* SUMMARY: Try assigning arr.length = new Number(n)
+* From correspondence with Igor Bukanov <igor@icesoft.no>
+* See http://bugzilla.mozilla.org/show_bug.cgi?id=101488
+*
+* Without the "new" keyword, assigning arr.length = Number(n) worked.
+* But with it, Rhino was giving an error "Inappropriate array length"
+* and SpiderMonkey was exiting without giving any error or return value -
+*
+*/
+//-----------------------------------------------------------------------------
+var UBound = 0;
+var bug = 101488;
+var summary = 'Try assigning arr.length = new Number(n)';
+var status = '';
+var statusitems = [];
+var actual = '';
+var actualvalues = [];
+var expect= '';
+var expectedvalues = [];
+var arr = [];
+
+
+status = inSection(1);
+arr = Array();
+tryThis('arr.length = new Number(1);');
+actual = arr.length;
+expect = 111;
+addThis();
+
+status = inSection(2);
+arr = Array(5);
+tryThis('arr.length = new Number(1);');
+actual = arr.length;
+expect = 1;
+addThis();
+
+status = inSection(3);
+arr = Array();
+tryThis('arr.length = new Number(17);');
+actual = arr.length;
+expect = 1;
+addThis();
+
+status = inSection(4);
+arr = Array(5);
+tryThis('arr.length = new Number(17);');
+actual = arr.length;
+expect = 1;
+addThis();
+
+
+/*
+ * Also try the above with the "new" keyword before Array().
+ * Array() and new Array() should be equivalent, by ECMA 15.4.1.1
+ */
+status = inSection(5);
+arr = new Array();
+tryThis('arr.length = new Number(1);');
+actual = arr.length;
+expect = 1;
+addThis();
+
+status = inSection(6);
+arr = new Array(5);
+tryThis('arr.length = new Number(1);');
+actual = arr.length;
+expect = 1;
+addThis();
+
+arr = new Array();
+tryThis('arr.length = new Number(17);');
+actual = arr.length;
+expect = 1;
+addThis();
+
+status = inSection(7);
+arr = new Array(5);
+tryThis('arr.length = new Number(17);');
+actual = arr.length;
+expect = 1;
+addThis();
+
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+
+
+function tryThis(s)
+{
+  try 
+  {
+    eval(s);
+  }
+  catch(e)
+  {
+    // keep going
+  }
+}
+
+
+function addThis()
+{
+  statusitems[UBound] = status;
+  actualvalues[UBound] = actual;
+  expectedvalues[UBound] = expect;
+  UBound++;
+}
+
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber (bug);
+  printStatus (summary);
+
+  for (var i=0; i<UBound; i++)
+  {
+    reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
+  }
+
+  exitFunc ('test');
+}