1 /*
   2  * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /**
  25  * JDK-8022598: Object.getPrototypeOf should return null for host objects rather than throwing TypeError
  26  *
  27  * @test
  28  * @run
  29  */
  30 
  31 // the following should not throw TypeError, just return null instead
  32 
  33 var proto = Object.getPrototypeOf(new java.lang.Object());
  34 if (proto !== null) {
  35     fail("Expected 'null' __proto__ for host objects");
  36 }
  37 
  38 // on primitive should result in TypeError
  39 
  40 function checkTypeError(obj) {
  41     try {
  42         Object.getPrototypeOf(obj);
  43         fail("Expected TypeError for Object.getPrototypeOf on " + obj);
  44     } catch (e) {
  45         if (! (e instanceof TypeError)) {
  46             fail("Expected TypeError, but got " + e);
  47         }
  48     }
  49 }
  50 
  51 checkTypeError(undefined);
  52 checkTypeError(null);
  53 checkTypeError(3.1415);
  54 checkTypeError("hello");
  55 checkTypeError(false);
  56 checkTypeError(true);