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Side by Side Diff: test/mjsunit/third_party/object-keys.js

Issue 201114: Implemented Object.keys. (Closed)
Patch Set: try-again Created 11 years, 3 months ago
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1 // Copyright (c) 2006 Apple Computer, Inc. All rights reserved.
2 //
3 // Redistribution and use in source and binary forms, with or without
4 // modification, are permitted provided that the following conditions
5 // are met:
6 //
7 // 1. Redistributions of source code must retain the above copyright
8 // notice, this list of conditions and the following disclaimer.
9 //
10 // 2. Redistributions in binary form must reproduce the above
11 // copyright notice, this list of conditions and the following
12 // disclaimer in the documentation and/or other materials provided
13 // with the distribution.
14 //
15 // 3. Neither the name of the copyright holder(s) nor the names of any
16 // contributors may be used to endorse or promote products derived
17 // from this software without specific prior written permission.
18 //
19 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
22 // FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
23 // COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
24 // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
25 // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
26 // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 // HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
28 // STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
30 // OF THE POSSIBILITY OF SUCH DAMAGE.
31
32 // Based on LayoutTests/fast/js/Object-keys.html
33
34 assertThrows(function () { Object.keys(2) }, TypeError);
35 assertThrows(function () { Object.keys("foo") }, TypeError);
36 assertThrows(function () { Object.keys(null) }, TypeError);
37 assertThrows(function () { Object.keys(undefined) }, TypeError);
38
39 assertEquals(Object.keys({}), []);
40 assertEquals(Object.keys({a:null}), ['a']);
41 assertEquals(Object.keys({a:null, b:null}), ['a', 'b']);
42 assertEquals(Object.keys({b:null, a:null}), ['b', 'a']);
43 assertEquals(Object.keys([]), []);
44 assertEquals(Object.keys([null]), ['0']);
45 assertEquals(Object.keys([null,null]), ['0', '1']);
46 assertEquals(Object.keys([null,null,,,,null]), ['0', '1', '5']);
47 assertEquals(Object.keys({__proto__:{a:null}}), []);
48 assertEquals(Object.keys({__proto__:[1,2,3]}), []);
49 var x = [];
50 x.__proto__ = [1, 2, 3];
51 assertEquals(Object.keys(x), []);
52
53 function argsTest(a, b, c) {
54 assertEquals([], Object.keys(arguments));
55 }
56
57 argsTest(1, 2, 3);
58
59 var literal = {a: 1, b: 2, c: 3};
60 var keysBefore = Object.keys(literal);
61 assertEquals(['a', 'b', 'c'], keysBefore);
62 keysBefore[0] = 'x';
63 var keysAfter = Object.keys(literal);
64 assertEquals(['a', 'b', 'c'], keysAfter);
65 assertEquals(['x', 'b', 'c'], keysBefore);
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