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128 lines
4.1 KiB
JavaScript
128 lines
4.1 KiB
JavaScript
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Communicator client code, released
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* March 31, 1998.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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gTestfile = '15.4.5.2-2.js';
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/**
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File Name: 15.4.5.2-2.js
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ECMA Section: Array.length
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Description:
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15.4.5.2 length
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The length property of this Array object is always numerically greater
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than the name of every property whose name is an array index.
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The length property has the attributes { DontEnum, DontDelete }.
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This test verifies that the Array.length property is not Read Only.
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Author: christine@netscape.com
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Date: 12 november 1997
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*/
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var SECTION = "15.4.5.2-2";
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var VERSION = "ECMA_1";
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startTest();
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var TITLE = "Array.length";
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writeHeaderToLog( SECTION + " "+ TITLE);
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addCase( new Array(), 0, Math.pow(2,14), Math.pow(2,14) );
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addCase( new Array(), 0, 1, 1 );
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addCase( new Array(Math.pow(2,12)), Math.pow(2,12), 0, 0 );
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addCase( new Array(Math.pow(2,13)), Math.pow(2,13), Math.pow(2,12), Math.pow(2,12) );
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addCase( new Array(Math.pow(2,12)), Math.pow(2,12), Math.pow(2,12), Math.pow(2,12) );
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addCase( new Array(Math.pow(2,14)), Math.pow(2,14), Math.pow(2,12), Math.pow(2,12) )
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// some tests where array is not empty
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// array is populated with strings
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for ( var arg = "", i = 0; i < Math.pow(2,12); i++ ) {
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arg += String(i) + ( i != Math.pow(2,12)-1 ? "," : "" );
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}
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// print(i +":"+arg);
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var a = eval( "new Array("+arg+")" );
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addCase( a, i, i, i );
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addCase( a, i, Math.pow(2,12)+i+1, Math.pow(2,12)+i+1, true );
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addCase( a, Math.pow(2,12)+5, 0, 0, true );
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test();
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function addCase( object, old_len, set_len, new_len, checkitems ) {
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object.length = set_len;
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new TestCase( SECTION,
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"array = new Array("+ old_len+"); array.length = " + set_len +
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"; array.length",
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new_len,
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object.length );
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if ( checkitems ) {
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// verify that items between old and newlen are all undefined
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if ( new_len < old_len ) {
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var passed = true;
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for ( var i = new_len; i < old_len; i++ ) {
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if ( object[i] != void 0 ) {
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passed = false;
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}
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}
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new TestCase( SECTION,
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"verify that array items have been deleted",
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true,
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passed );
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}
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if ( new_len > old_len ) {
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var passed = true;
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for ( var i = old_len; i < new_len; i++ ) {
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if ( object[i] != void 0 ) {
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passed = false;
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}
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}
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new TestCase( SECTION,
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"verify that new items are undefined",
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true,
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passed );
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}
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}
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}
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