| /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */ |
| /* This Source Code Form is subject to the terms of the Mozilla Public |
| * License, v. 2.0. If a copy of the MPL was not distributed with this |
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| |
| /* |
| * |
| * Date: 20 Feb 2002 |
| * SUMMARY: Testing the comparison |undefined === null| |
| * See http://bugzilla.mozilla.org/show_bug.cgi?id=126722 |
| * |
| */ |
| //----------------------------------------------------------------------------- |
| var UBound = 0; |
| var BUGNUMBER = 126722; |
| var summary = 'Testing the comparison |undefined === null|'; |
| var status = ''; |
| var statusitems = []; |
| var actual = ''; |
| var actualvalues = []; |
| var expect= ''; |
| var expectedvalues = []; |
| |
| |
| status = inSection(1); |
| if (undefined === null) |
| actual = true; |
| else |
| actual = false; |
| expect = false; |
| addThis(); |
| |
| |
| |
| status = inSection(2); |
| switch(true) |
| { |
| case (undefined === null) : |
| actual = true; |
| break; |
| |
| default: |
| actual = false; |
| } |
| expect = false; |
| addThis(); |
| |
| |
| |
| status = inSection(3); |
| function f3(x) |
| { |
| var res = false; |
| |
| switch(true) |
| { |
| case (x === null) : |
| res = true; |
| break; |
| |
| default: |
| // do nothing |
| } |
| |
| return res; |
| } |
| |
| actual = f3(undefined); |
| expect = false; |
| addThis(); |
| |
| |
| |
| status = inSection(4); |
| function f4(arr) |
| { |
| var elt = ''; |
| var res = false; |
| |
| for (i=0; i<arr.length; i++) |
| { |
| elt = arr[i]; |
| |
| switch(true) |
| { |
| case (elt === null) : |
| res = true; |
| break; |
| |
| default: |
| // do nothing |
| } |
| } |
| |
| return res; |
| } |
| |
| var arr = Array('a', undefined); |
| actual = f4(arr); |
| expect = false; |
| addThis(); |
| |
| |
| |
| status = inSection(5); |
| function f5(arr) |
| { |
| var len = arr.length; |
| |
| for(var i=0; (arr[i]===undefined) && (i<len); i++) |
| ; //do nothing |
| |
| return i; |
| } |
| |
| /* |
| * An array of 5 undefined elements. Note: |
| * |
| * The return value of eval(a STATEMENT) is undefined. |
| * A non-existent PROPERTY is undefined, not a ReferenceError. |
| * No undefined element exists AFTER trailing comma at end. |
| * |
| */ |
| var arrUndef = [ , undefined, eval('var x = 0'), this.NOT_A_PROPERTY, , ]; |
| actual = f5(arrUndef); |
| expect = 5; |
| addThis(); |
| |
| |
| |
| status = inSection(6); |
| function f6(arr) |
| { |
| var len = arr.length; |
| |
| for(var i=0; (arr[i]===null) && (i<len); i++) |
| ; //do nothing |
| |
| return i; |
| } |
| |
| /* |
| * Use same array as above. This time we're comparing to |null|, so we expect 0 |
| */ |
| actual = f6(arrUndef); |
| expect = 0; |
| addThis(); |
| |
| |
| |
| |
| //----------------------------------------------------------------------------- |
| test(); |
| //----------------------------------------------------------------------------- |
| |
| |
| |
| function addThis() |
| { |
| statusitems[UBound] = status; |
| actualvalues[UBound] = actual; |
| expectedvalues[UBound] = expect; |
| UBound++; |
| } |
| |
| |
| function test() |
| { |
| enterFunc('test'); |
| printBugNumber(BUGNUMBER); |
| printStatus(summary); |
| |
| for (var i=0; i<UBound; i++) |
| { |
| reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]); |
| } |
| |
| exitFunc ('test'); |
| } |