1 /*
   2  * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  * 
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  * 
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  * 
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  * 
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /**
  25  * JDK-8068513: Adding elements to a javascript 'object' (a map) is slow
  26  *
  27  * @test
  28  * @run
  29  */
  30 
  31 var map = {};
  32 var keys = [];
  33 var values = [];
  34 
  35 for (i = 0; i < 5000; i++) {
  36     var key = 'key' + i;
  37     var value = i;
  38     keys.push(key);
  39     values.push(value);
  40     map[key] = value;
  41 }
  42 
  43 function testAssertions() {
  44     Assert.assertTrue(Object.keys(map).length === values.length);
  45 
  46     var c = 0;
  47     for (var k in map) {
  48         Assert.assertTrue(k === keys[c]);
  49         Assert.assertTrue(map[k] === values[c]);
  50         c++;
  51     }
  52 
  53     Assert.assertTrue(c === values.length);
  54 }
  55 
  56 // redefine existing property
  57 Object.defineProperty(map, "key2000", { enumerable: true, get: function() { return 'new value 2000' } });
  58 values[2000] = 'new value 2000';
  59 
  60 testAssertions();
  61 
  62 // define new property
  63 Object.defineProperty(map, "defined property", { enumerable: true, configurable: true, get: function() { return 13 } });
  64 keys.push('defined property');
  65 values.push(13);
  66 
  67 testAssertions();
  68 
  69 // delete and redefine
  70 delete map.key3000;
  71 map.key3000 = 'new value';
  72 keys.splice(3000, 1);
  73 values.splice(3000, 1);
  74 keys.push('key3000');
  75 values.push('new value');
  76 
  77 testAssertions();
  78 
  79 // delete all properties
  80 while (values.length > 0) {
  81     values.pop();
  82     delete map[keys.pop()];
  83 }
  84 
  85 testAssertions();
  86 
  87 // add a few new ones
  88 for (var i = 0; i < 1000; i++) {
  89     keys.push('k' + i);
  90     values.push('v' + i);
  91     map['k' + i] = 'v' + i;
  92 }
  93 
  94 testAssertions();
  95