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sourceRevisionAtLastExport: 33f2fb0e53d135f0ee17cfccd9d993eb2a6f47de targetRevisionAtLastExport: 31340cbd9add103f586d501b0c3354b7b182abc0
101 lines
3.5 KiB
JavaScript
101 lines
3.5 KiB
JavaScript
// Copyright (c) 2006 Apple Computer, Inc. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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//
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// 1. Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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//
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// 3. Neither the name of the copyright holder(s) nor the names of any
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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// OF THE POSSIBILITY OF SUCH DAMAGE.
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// Based on LayoutTests/fast/js/Object-keys.html
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assertEquals(Object.keys(2), []);
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assertEquals(Object.keys("foo"), ["0", "1", "2"]);
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assertThrows(function () { Object.keys(null) }, TypeError);
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assertThrows(function () { Object.keys(undefined) }, TypeError);
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assertEquals(Object.keys({}), []);
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assertEquals(Object.keys({a:null}), ['a']);
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assertEquals(Object.keys({a:null, b:null}), ['a', 'b']);
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assertEquals(Object.keys({b:null, a:null}), ['b', 'a']);
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assertEquals(Object.keys([]), []);
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assertEquals(Object.keys([null]), ['0']);
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assertEquals(Object.keys([undefined]), ['0']);
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assertEquals(Object.keys([null,null]), ['0', '1']);
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assertEquals(Object.keys([null,null,,,,null]), ['0', '1', '5']);
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assertEquals(Object.keys({__proto__:{a:null}}), []);
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assertEquals(Object.keys({__proto__:[1,2,3]}), []);
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var x = [];
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x.__proto__ = [1, 2, 3];
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assertEquals(Object.keys(x), []);
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assertEquals(Object.keys(function () {}), []);
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assertEquals('string', typeof(Object.keys([1])[0]));
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function argsTest(a, b, c) {
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assertEquals(['0', '1', '2'], Object.keys(arguments));
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}
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argsTest(1, 2, 3);
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var literal = {a: 1, b: 2, c: 3};
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var keysBefore = Object.keys(literal);
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assertEquals(['a', 'b', 'c'], keysBefore);
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keysBefore[0] = 'x';
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var keysAfter = Object.keys(literal);
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assertEquals(['a', 'b', 'c'], keysAfter);
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assertEquals(['x', 'b', 'c'], keysBefore);
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var o = [1, 2, 3];
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assertEquals(['0', '1', '2'], Object.keys(o));
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Object.defineProperty(o, '0', {
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enumerable: false,
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});
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assertEquals(['1', '2'], Object.keys(o));
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(function(){
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assertEquals(['0', '1', '2'], Object.keys(arguments));
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Object.defineProperty(arguments, '0', {
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enumerable: false,
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});
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assertEquals(['1', '2'], Object.keys(arguments));
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})(0,1,2);
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(function(a, b){
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assertEquals(['0', '1', '2'], Object.keys(arguments));
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Object.defineProperty(arguments, '0', {
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enumerable: false,
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});
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assertEquals(['1', '2'], Object.keys(arguments));
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})(0,1,2);
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var b = [];
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assertEquals(0, Object.keys(b).length);
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b[0] = undefined;
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assertEquals(1, Object.keys(b).length);
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