michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /*
michael@0:  * Date: 03 December 2000
michael@0:  *
michael@0:  *
michael@0:  * SUMMARY:  This test arose from Bugzilla bug 57043:
michael@0:  * "Negative integers as object properties: strange behavior!"
michael@0:  *
michael@0:  * We check that object properties may be indexed by signed
michael@0:  * numeric literals, as in assignments like obj[-1] = 'Hello' 
michael@0:  *
michael@0:  * NOTE: it should not matter whether we provide the literal with
michael@0:  * quotes around it or not; e.g. these should be equivalent:
michael@0:  *
michael@0:  *                                    obj[-1]  = 'Hello'
michael@0:  *                                    obj['-1']  = 'Hello'
michael@0:  */
michael@0: //-----------------------------------------------------------------------------
michael@0: var BUGNUMBER = 57043;
michael@0: var summary = 'Indexing object properties by signed numerical literals -'
michael@0:   var statprefix = 'Adding a property to test object with an index of ';
michael@0: var statsuffix =  ', testing it now -';
michael@0: var propprefix = 'This is property ';
michael@0: var obj = new Object();
michael@0: var status = ''; var actual = ''; var expect = ''; var value = '';
michael@0: 
michael@0: 
michael@0: //  various indices to try -
michael@0: var index =
michael@0:   [-1073741825, -1073741824, -1073741823, -5000, -507, -3, -2, -1, -0, 0, 1, 2, 3, 1073741823, 1073741824, 1073741825];
michael@0: 
michael@0: 
michael@0: //------------------------------------------------------------------------------------------------- 
michael@0: test();
michael@0: //-------------------------------------------------------------------------------------------------
michael@0: 
michael@0: 
michael@0: function test()
michael@0: {
michael@0:   enterFunc ('test');
michael@0:   printBugNumber(BUGNUMBER);
michael@0:   printStatus (summary);
michael@0: 
michael@0:   for (var j in index) {testProperty(index[j]);}
michael@0: 
michael@0:   exitFunc ('test');
michael@0: }
michael@0: 
michael@0: 
michael@0: function testProperty(i)
michael@0: {
michael@0:   status = getStatus(i);
michael@0: 
michael@0:   // try to assign a property using the given index -
michael@0:   obj[i] = value = (propprefix  +  i);  
michael@0:  
michael@0:   // try to read the property back via the index (as number) -
michael@0:   expect = value;
michael@0:   actual = obj[i];
michael@0:   reportCompare(expect, actual, status); 
michael@0: 
michael@0:   // try to read the property back via the index as string -
michael@0:   expect = value;
michael@0:   actual = obj[String(i)];
michael@0:   reportCompare(expect, actual, status);
michael@0: }
michael@0: 
michael@0: function positive(n) { return 1 / n > 0; }
michael@0: 
michael@0: function getStatus(i)
michael@0: {
michael@0:   return statprefix +
michael@0:          (positive(i) ? i : "-" + -i) +
michael@0:          statsuffix;
michael@0: }