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:  *
michael@0:  * Date:    20 Feb 2002
michael@0:  * SUMMARY: Testing the comparison |undefined === null|
michael@0:  * See http://bugzilla.mozilla.org/show_bug.cgi?id=126722
michael@0:  *
michael@0:  */
michael@0: //-----------------------------------------------------------------------------
michael@0: var UBound = 0;
michael@0: var BUGNUMBER = 126722;
michael@0: var summary = 'Testing the comparison |undefined === null|';
michael@0: var status = '';
michael@0: var statusitems = [];
michael@0: var actual = '';
michael@0: var actualvalues = [];
michael@0: var expect= '';
michael@0: var expectedvalues = [];
michael@0: 
michael@0: 
michael@0: status = inSection(1);
michael@0: if (undefined === null)
michael@0:   actual = true;
michael@0: else
michael@0:   actual = false;
michael@0: expect = false;
michael@0: addThis();
michael@0: 
michael@0: 
michael@0: 
michael@0: status = inSection(2);
michael@0: switch(true)
michael@0: {
michael@0: case (undefined === null) :
michael@0:   actual = true;
michael@0:   break;
michael@0: 
michael@0: default:
michael@0:   actual = false;
michael@0: }
michael@0: expect = false;
michael@0: addThis();
michael@0: 
michael@0: 
michael@0: 
michael@0: status = inSection(3);
michael@0: function f3(x)
michael@0: {
michael@0:   var res = false;
michael@0: 
michael@0:   switch(true)
michael@0:   {
michael@0:   case (x === null) :
michael@0:     res = true;
michael@0:     break;
michael@0: 
michael@0:   default:
michael@0:     // do nothing
michael@0:   }
michael@0: 
michael@0:   return res;
michael@0: }
michael@0: 
michael@0: actual = f3(undefined);
michael@0: expect = false;
michael@0: addThis();
michael@0: 
michael@0: 
michael@0: 
michael@0: status = inSection(4);
michael@0: function f4(arr)
michael@0: {
michael@0:   var elt = '';
michael@0:   var res = false;
michael@0: 
michael@0:   for (i=0; i<arr.length; i++)
michael@0:   {
michael@0:     elt = arr[i];
michael@0: 
michael@0:     switch(true)
michael@0:     {
michael@0:     case (elt === null) :
michael@0:       res = true;
michael@0:       break;
michael@0: 
michael@0:     default:
michael@0:       // do nothing
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   return res;
michael@0: }
michael@0: 
michael@0: var arr = Array('a', undefined);
michael@0: actual = f4(arr);
michael@0: expect = false;
michael@0: addThis();
michael@0: 
michael@0: 
michael@0: 
michael@0: status = inSection(5);
michael@0: function f5(arr)
michael@0: {
michael@0:   var len = arr.length;
michael@0: 
michael@0:   for(var i=0; (arr[i]===undefined) && (i<len); i++)
michael@0:     ; //do nothing
michael@0:  
michael@0:   return i;
michael@0: }
michael@0: 
michael@0: /*
michael@0:  * An array of 5 undefined elements. Note:
michael@0:  *
michael@0:  * The return value of eval(a STATEMENT) is undefined.
michael@0:  * A non-existent PROPERTY is undefined, not a ReferenceError.
michael@0:  * No undefined element exists AFTER trailing comma at end.
michael@0:  *
michael@0:  */
michael@0: var arrUndef = [ , undefined, eval('var x = 0'), this.NOT_A_PROPERTY, , ];
michael@0: actual = f5(arrUndef);
michael@0: expect = 5;
michael@0: addThis();
michael@0: 
michael@0: 
michael@0: 
michael@0: status = inSection(6);
michael@0: function f6(arr)
michael@0: {
michael@0:   var len = arr.length;
michael@0: 
michael@0:   for(var i=0; (arr[i]===null) && (i<len); i++)
michael@0:     ; //do nothing
michael@0: 
michael@0:   return i;
michael@0: }
michael@0: 
michael@0: /*
michael@0:  * Use same array as above. This time we're comparing to |null|, so we expect 0
michael@0:  */
michael@0: actual = f6(arrUndef);
michael@0: expect = 0;
michael@0: addThis();
michael@0: 
michael@0: 
michael@0: 
michael@0: 
michael@0: //-----------------------------------------------------------------------------
michael@0: test();
michael@0: //-----------------------------------------------------------------------------
michael@0: 
michael@0: 
michael@0: 
michael@0: function addThis()
michael@0: {
michael@0:   statusitems[UBound] = status;
michael@0:   actualvalues[UBound] = actual;
michael@0:   expectedvalues[UBound] = expect;
michael@0:   UBound++;
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 i=0; i<UBound; i++)
michael@0:   {
michael@0:     reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
michael@0:   }
michael@0: 
michael@0:   exitFunc ('test');
michael@0: }