96 lines
2.4 KiB
JavaScript
96 lines
2.4 KiB
JavaScript
/*
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* Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* JDK-8068513: Adding elements to a javascript 'object' (a map) is slow
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*
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* @test
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* @run
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*/
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var map = {};
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var keys = [];
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var values = [];
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for (i = 0; i < 5000; i++) {
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var key = 'key' + i;
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var value = i;
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keys.push(key);
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values.push(value);
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map[key] = value;
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}
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function testAssertions() {
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Assert.assertTrue(Object.keys(map).length === values.length);
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var c = 0;
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for (var k in map) {
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Assert.assertTrue(k === keys[c]);
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Assert.assertTrue(map[k] === values[c]);
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c++;
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}
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Assert.assertTrue(c === values.length);
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}
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// redefine existing property
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Object.defineProperty(map, "key2000", { enumerable: true, get: function() { return 'new value 2000' } });
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values[2000] = 'new value 2000';
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testAssertions();
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// define new property
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Object.defineProperty(map, "defined property", { enumerable: true, configurable: true, get: function() { return 13 } });
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keys.push('defined property');
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values.push(13);
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testAssertions();
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// delete and redefine
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delete map.key3000;
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map.key3000 = 'new value';
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keys.splice(3000, 1);
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values.splice(3000, 1);
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keys.push('key3000');
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values.push('new value');
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testAssertions();
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// delete all properties
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while (values.length > 0) {
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values.pop();
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delete map[keys.pop()];
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}
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testAssertions();
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// add a few new ones
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for (var i = 0; i < 1000; i++) {
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keys.push('k' + i);
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values.push('v' + i);
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map['k' + i] = 'v' + i;
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}
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testAssertions();
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