| /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| /* ***** BEGIN LICENSE BLOCK ***** |
| * Version: MPL 1.1/GPL 2.0/LGPL 2.1 |
| * |
| * The contents of this file are subject to the Mozilla Public License Version |
| * 1.1 (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * http://www.mozilla.org/MPL/ |
| * |
| * Software distributed under the License is distributed on an "AS IS" basis, |
| * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License |
| * for the specific language governing rights and limitations under the |
| * License. |
| * |
| * The Original Code is Mozilla Communicator client code, released |
| * March 31, 1998. |
| * |
| * The Initial Developer of the Original Code is |
| * Netscape Communications Corporation. |
| * Portions created by the Initial Developer are Copyright (C) 1998 |
| * the Initial Developer. All Rights Reserved. |
| * |
| * Contributor(s): |
| * |
| * Alternatively, the contents of this file may be used under the terms of |
| * either the GNU General Public License Version 2 or later (the "GPL"), or |
| * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), |
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| * ***** END LICENSE BLOCK ***** */ |
| |
| gTestfile = '11.9.2.js'; |
| |
| /** |
| File Name: 11.9.2.js |
| ECMA Section: 11.9.2 The equals operator ( == ) |
| Description: |
| |
| The production EqualityExpression: |
| EqualityExpression == RelationalExpression is evaluated as follows: |
| |
| 1. Evaluate EqualityExpression. |
| 2. Call GetValue(Result(1)). |
| 3. Evaluate RelationalExpression. |
| 4. Call GetValue(Result(3)). |
| 5. Perform the comparison Result(4) == Result(2). (See section 11.9.3) |
| 6. Return Result(5). |
| Author: christine@netscape.com |
| Date: 12 november 1997 |
| */ |
| var SECTION = "11.9.2"; |
| var VERSION = "ECMA_1"; |
| var BUGNUMBER="77391"; |
| startTest(); |
| |
| writeHeaderToLog( SECTION + " The equals operator ( == )"); |
| |
| // type x and type y are the same. if type x is undefined or null, return true |
| |
| new TestCase( SECTION, "void 0 == void 0", false, void 0 != void 0 ); |
| new TestCase( SECTION, "null == null", false, null != null ); |
| |
| // if x is NaN, return false. if y is NaN, return false. |
| |
| new TestCase( SECTION, "NaN != NaN", true, Number.NaN != Number.NaN ); |
| new TestCase( SECTION, "NaN != 0", true, Number.NaN != 0 ); |
| new TestCase( SECTION, "0 != NaN", true, 0 != Number.NaN ); |
| new TestCase( SECTION, "NaN != Infinity", true, Number.NaN != Number.POSITIVE_INFINITY ); |
| new TestCase( SECTION, "Infinity != NaN", true, Number.POSITIVE_INFINITY != Number.NaN ); |
| |
| // if x is the same number value as y, return true. |
| |
| new TestCase( SECTION, "Number.MAX_VALUE != Number.MAX_VALUE", false, Number.MAX_VALUE != Number.MAX_VALUE ); |
| new TestCase( SECTION, "Number.MIN_VALUE != Number.MIN_VALUE", false, Number.MIN_VALUE != Number.MIN_VALUE ); |
| new TestCase( SECTION, "Number.POSITIVE_INFINITY != Number.POSITIVE_INFINITY", false, Number.POSITIVE_INFINITY != Number.POSITIVE_INFINITY ); |
| new TestCase( SECTION, "Number.NEGATIVE_INFINITY != Number.NEGATIVE_INFINITY", false, Number.NEGATIVE_INFINITY != Number.NEGATIVE_INFINITY ); |
| |
| // if xis 0 and y is -0, return true. if x is -0 and y is 0, return true. |
| |
| new TestCase( SECTION, "0 != 0", false, 0 != 0 ); |
| new TestCase( SECTION, "0 != -0", false, 0 != -0 ); |
| new TestCase( SECTION, "-0 != 0", false, -0 != 0 ); |
| new TestCase( SECTION, "-0 != -0", false, -0 != -0 ); |
| |
| // return false. |
| |
| new TestCase( SECTION, "0.9 != 1", true, 0.9 != 1 ); |
| new TestCase( SECTION, "0.999999 != 1", true, 0.999999 != 1 ); |
| new TestCase( SECTION, "0.9999999999 != 1", true, 0.9999999999 != 1 ); |
| new TestCase( SECTION, "0.9999999999999 != 1", true, 0.9999999999999 != 1 ); |
| |
| // type x and type y are the same type, but not numbers. |
| |
| |
| // x and y are strings. return true if x and y are exactly the same sequence of characters. |
| // otherwise, return false. |
| |
| new TestCase( SECTION, "'hello' != 'hello'", false, "hello" != "hello" ); |
| |
| // x and y are booleans. return true if both are true or both are false. |
| |
| new TestCase( SECTION, "true != true", false, true != true ); |
| new TestCase( SECTION, "false != false", false, false != false ); |
| new TestCase( SECTION, "true != false", true, true != false ); |
| new TestCase( SECTION, "false != true", true, false != true ); |
| |
| // return true if x and y refer to the same object. otherwise return false. |
| |
| new TestCase( SECTION, "new MyObject(true) != new MyObject(true)", true, new MyObject(true) != new MyObject(true) ); |
| new TestCase( SECTION, "new Boolean(true) != new Boolean(true)", true, new Boolean(true) != new Boolean(true) ); |
| new TestCase( SECTION, "new Boolean(false) != new Boolean(false)", true, new Boolean(false) != new Boolean(false) ); |
| |
| |
| new TestCase( SECTION, "x = new MyObject(true); y = x; z = x; z != y", false, eval("x = new MyObject(true); y = x; z = x; z != y") ); |
| new TestCase( SECTION, "x = new MyObject(false); y = x; z = x; z != y", false, eval("x = new MyObject(false); y = x; z = x; z != y") ); |
| new TestCase( SECTION, "x = new Boolean(true); y = x; z = x; z != y", false, eval("x = new Boolean(true); y = x; z = x; z != y") ); |
| new TestCase( SECTION, "x = new Boolean(false); y = x; z = x; z != y", false, eval("x = new Boolean(false); y = x; z = x; z != y") ); |
| |
| new TestCase( SECTION, "new Boolean(true) != new Boolean(true)", true, new Boolean(true) != new Boolean(true) ); |
| new TestCase( SECTION, "new Boolean(false) != new Boolean(false)", true, new Boolean(false) != new Boolean(false) ); |
| |
| // if x is null and y is undefined, return true. if x is undefined and y is null return true. |
| |
| new TestCase( SECTION, "null != void 0", false, null != void 0 ); |
| new TestCase( SECTION, "void 0 != null", false, void 0 != null ); |
| |
| // if type(x) is Number and type(y) is string, return the result of the comparison x != ToNumber(y). |
| |
| new TestCase( SECTION, "1 != '1'", false, 1 != '1' ); |
| new TestCase( SECTION, "255 != '0xff'", false, 255 != '0xff' ); |
| new TestCase( SECTION, "0 != '\r'", false, 0 != "\r" ); |
| new TestCase( SECTION, "1e19 != '1e19'", false, 1e19 != "1e19" ); |
| |
| |
| new TestCase( SECTION, "new Boolean(true) != true", false, true != new Boolean(true) ); |
| new TestCase( SECTION, "new MyObject(true) != true", false, true != new MyObject(true) ); |
| |
| new TestCase( SECTION, "new Boolean(false) != false", false, new Boolean(false) != false ); |
| new TestCase( SECTION, "new MyObject(false) != false", false, new MyObject(false) != false ); |
| |
| new TestCase( SECTION, "true != new Boolean(true)", false, true != new Boolean(true) ); |
| new TestCase( SECTION, "true != new MyObject(true)", false, true != new MyObject(true) ); |
| |
| new TestCase( SECTION, "false != new Boolean(false)", false, false != new Boolean(false) ); |
| new TestCase( SECTION, "false != new MyObject(false)", false, false != new MyObject(false) ); |
| |
| test(); |
| |
| function MyObject( value ) { |
| this.value = value; |
| this.valueOf = new Function( "return this.value" ); |
| } |
