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
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.
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13 // contributors may be used to endorse or promote products derived
14 // from this software without specific prior written permission.
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.
29 function TryGetPrototypeOfNonObject(x) {
32 Object.getPrototypeOf(x);
37 assertTrue(caught instanceof TypeError);
40 function GetPrototypeOfObject(x) {
41 assertDoesNotThrow(Object.getPrototypeOf(x));
42 assertNotNull(Object.getPrototypeOf(x));
43 assertEquals(Object.getPrototypeOf(x), x.__proto__);
54 // Make sure that TypeError exceptions are thrown when non-objects are passed
56 TryGetPrototypeOfNonObject(0);
57 TryGetPrototypeOfNonObject(null);
58 TryGetPrototypeOfNonObject('Testing');
59 TryGetPrototypeOfNonObject(x);
61 // Make sure the real objects have this method and that it returns the
62 // actual prototype object. Also test for Functions and RegExp.
63 GetPrototypeOfObject(this);
64 GetPrototypeOfObject(y);
65 GetPrototypeOfObject({x:5});
66 GetPrototypeOfObject(F);
67 GetPrototypeOfObject(RegExp);