1// Copyright 2010 the V8 project authors. All rights reserved.
2// Redistribution and use in source and binary forms, with or without
3// modification, are permitted provided that the following conditions are
4// met:
5//
6//     * Redistributions of source code must retain the above copyright
7//       notice, this list of conditions and the following disclaimer.
8//     * Redistributions in binary form must reproduce the above
9//       copyright notice, this list of conditions and the following
10//       disclaimer in the documentation and/or other materials provided
11//       with the distribution.
12//     * Neither the name of Google Inc. nor the names of its
13//       contributors may be used to endorse or promote products derived
14//       from this software without specific prior written permission.
15//
16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28
29function TryGetPrototypeOfNonObject(x) {
30  var caught = 0;
31  try {
32      Object.getPrototypeOf(x);
33  } catch (e) {
34    caught = e;
35  }
36
37  assertTrue(caught instanceof TypeError);
38};
39
40function GetPrototypeOfObject(x) {
41  assertDoesNotThrow(Object.getPrototypeOf(x));
42  assertNotNull(Object.getPrototypeOf(x));
43  assertEquals(Object.getPrototypeOf(x), x.__proto__);
44}
45
46function F(){};
47
48// Non object
49var x = 10;
50
51// Object
52var y = new F();
53
54// Make sure that TypeError exceptions are thrown when non-objects are passed
55// as argument
56TryGetPrototypeOfNonObject(0);
57TryGetPrototypeOfNonObject(null);
58TryGetPrototypeOfNonObject('Testing');
59TryGetPrototypeOfNonObject(x);
60
61// Make sure the real objects have this method and that it returns the
62// actual prototype object. Also test for Functions and RegExp.
63GetPrototypeOfObject(this);
64GetPrototypeOfObject(y);
65GetPrototypeOfObject({x:5});
66GetPrototypeOfObject(F);
67GetPrototypeOfObject(RegExp);
68