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diff --git a/js/src/tests/ecma_3_1/Object/regress-444787.js b/js/src/tests/ecma_3_1/Object/regress-444787.js
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@@ -0,0 +1,154 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla 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/MPL/
+ *
+ * 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 JavaScript Engine testing utilities.
+ *
+ * The Initial Developer of the Original Code is
+ * Mozilla Foundation.
+ * Portions created by the Initial Developer are Copyright (C) 2008
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 444787;
+var summary = 'Object.getPrototypeOf';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+  var i;
+  var type;
+  var instance;
+  var types = [
+    Array,
+    Boolean,
+    Date,
+    Error,
+    Function,
+    Math,
+    Number,
+    Object,
+    RegExp,
+    String,
+    ];
+
+  for (i = 0; i < types.length; i++)
+  {
+    type = types[i];
+
+    if (typeof type.__proto__ != 'undefined')
+    {
+      expect = type.__proto__;
+      actual = Object.getPrototypeOf(type);
+      reportCompare(expect, actual, summary + ': ' + type.name);
+    }
+
+    try
+    {
+      eval('instance = new ' + type.name);
+      expect = type.prototype;
+      actual = Object.getPrototypeOf(instance);
+      reportCompare(expect, actual, summary + ': new ' + type.name);
+    }
+    catch(ex if ex instanceof TypeError)
+    {
+      print('Ignore ' + ex);
+    }
+    catch(ex)
+    {
+      actual = ex + '';
+      reportCompare(expect, actual, summary + ': new ' + type.name);
+    }
+
+  }
+
+  types = [null, undefined];
+
+  for (i = 0; i < types.length; i++)
+  {
+    type = types[i];
+    expect = 'TypeError: Object.getPrototype is not a function';
+    try
+    {
+      actual = Object.getPrototype(null);
+    }
+    catch(ex)
+    {
+      actual = ex + '';
+    }
+    reportCompare(expect, actual, summary + ': ' + type);
+  }
+
+  var objects = [
+    {instance: [0], type: Array},
+    {instance: (function () {}), type: Function},
+    {instance: eval, type: Function},
+    {instance: parseInt, type: Function},
+    {instance: {a: ''}, type: Object},
+    {instance: /foo/, type: RegExp}
+    ];
+
+  for (i = 0; i < objects.length; i++)
+  {
+    instance = objects[i].instance;
+    type     = objects[i].type;
+    expect   = type.prototype;
+    actual   = Object.getPrototypeOf(instance);
+    reportCompare(expect, actual, summary + ' instance: ' + instance + ', type: ' + type.name);
+  }
+
+  var non_objects = [ true, false, 1.0, Infinity, NaN, Math.PI, "bar" ];
+
+  for (i = 0; i < non_objects.length; i++)
+  {
+    instance = non_objects[i];
+    expect = 'TypeError: instance is not an object';
+    try
+    {
+      actual = Object.getPrototypeOf(instance);
+    }
+    catch(ex)
+    {
+      actual = ex + '';
+    }
+    reportCompare(expect, actual, summary + ' non-object: ' + actual);
+  }
+
+  exitFunc ('test');
+}