/* -*- 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"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ /** File Name: 11.9.1.js ECMA Section: 11.9.1 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 = "11.9.1"; 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", true, void 0 == void 0 ); new TestCase( SECTION, "null == null", true, null == null ); // if x is NaN, return false. if y is NaN, return false. new TestCase( SECTION, "NaN == NaN", false, Number.NaN == Number.NaN ); new TestCase( SECTION, "NaN == 0", false, Number.NaN == 0 ); new TestCase( SECTION, "0 == NaN", false, 0 == Number.NaN ); new TestCase( SECTION, "NaN == Infinity", false, Number.NaN == Number.POSITIVE_INFINITY ); new TestCase( SECTION, "Infinity == NaN", false, 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", true, Number.MAX_VALUE == Number.MAX_VALUE ); new TestCase( SECTION, "Number.MIN_VALUE == Number.MIN_VALUE", true, Number.MIN_VALUE == Number.MIN_VALUE ); new TestCase( SECTION, "Number.POSITIVE_INFINITY == Number.POSITIVE_INFINITY", true, Number.POSITIVE_INFINITY == Number.POSITIVE_INFINITY ); new TestCase( SECTION, "Number.NEGATIVE_INFINITY == Number.NEGATIVE_INFINITY", true, 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", true, 0 == 0 ); new TestCase( SECTION, "0 == -0", true, 0 == -0 ); new TestCase( SECTION, "-0 == 0", true, -0 == 0 ); new TestCase( SECTION, "-0 == -0", true, -0 == -0 ); // return false. new TestCase( SECTION, "0.9 == 1", false, 0.9 == 1 ); new TestCase( SECTION, "0.999999 == 1", false, 0.999999 == 1 ); new TestCase( SECTION, "0.9999999999 == 1", false, 0.9999999999 == 1 ); new TestCase( SECTION, "0.9999999999999 == 1", false, 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'", true, "hello" == "hello" ); // x and y are booleans. return true if both are true or both are false. new TestCase( SECTION, "true == true", true, true == true ); new TestCase( SECTION, "false == false", true, false == false ); new TestCase( SECTION, "true == false", false, true == false ); new TestCase( SECTION, "false == true", false, 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)", false, new MyObject(true) == new MyObject(true) ); new TestCase( SECTION, "new Boolean(true) == new Boolean(true)", false, new Boolean(true) == new Boolean(true) ); new TestCase( SECTION, "new Boolean(false) == new Boolean(false)", false, new Boolean(false) == new Boolean(false) ); new TestCase( SECTION, "x = new MyObject(true); y = x; z = x; z == y", true, eval("x = new MyObject(true); y = x; z = x; z == y") ); new TestCase( SECTION, "x = new MyObject(false); y = x; z = x; z == y", true, eval("x = new MyObject(false); y = x; z = x; z == y") ); new TestCase( SECTION, "x = new Boolean(true); y = x; z = x; z == y", true, eval("x = new Boolean(true); y = x; z = x; z == y") ); new TestCase( SECTION, "x = new Boolean(false); y = x; z = x; z == y", true, eval("x = new Boolean(false); y = x; z = x; z == y") ); new TestCase( SECTION, "new Boolean(true) == new Boolean(true)", false, new Boolean(true) == new Boolean(true) ); new TestCase( SECTION, "new Boolean(false) == new Boolean(false)", false, 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", true, null == void 0 ); new TestCase( SECTION, "void 0 == null", true, 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'", true, 1 == '1' ); new TestCase( SECTION, "255 == '0xff'", true, 255 == '0xff' ); new TestCase( SECTION, "0 == '\r'", true, 0 == "\r" ); new TestCase( SECTION, "1e19 == '1e19'", true, 1e19 == "1e19" ); new TestCase( SECTION, "new Boolean(true) == true", true, true == new Boolean(true) ); new TestCase( SECTION, "new MyObject(true) == true", true, true == new MyObject(true) ); new TestCase( SECTION, "new Boolean(false) == false", true, new Boolean(false) == false ); new TestCase( SECTION, "new MyObject(false) == false", true, new MyObject(false) == false ); new TestCase( SECTION, "true == new Boolean(true)", true, true == new Boolean(true) ); new TestCase( SECTION, "true == new MyObject(true)", true, true == new MyObject(true) ); new TestCase( SECTION, "false == new Boolean(false)", true, false == new Boolean(false) ); new TestCase( SECTION, "false == new MyObject(false)", true, false == new MyObject(false) ); test(); function MyObject( value ) { this.value = value; this.valueOf = new Function( "return this.value" ); }