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      1 // Copyright 2013 the V8 project authors. All rights reserved.
      2 // Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
      3 //
      4 // Redistribution and use in source and binary forms, with or without
      5 // modification, are permitted provided that the following conditions
      6 // are met:
      7 // 1.  Redistributions of source code must retain the above copyright
      8 //     notice, this list of conditions and the following disclaimer.
      9 // 2.  Redistributions in binary form must reproduce the above copyright
     10 //     notice, this list of conditions and the following disclaimer in the
     11 //     documentation and/or other materials provided with the distribution.
     12 //
     13 // THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
     14 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     15 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     16 // DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     17 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     18 // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     19 // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
     20 // ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     21 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     22 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     23 
     24 description(
     25 'Test for equality of many combinations types.'
     26 );
     27 
     28 var values = [ '0', '1', '0.1', '2', '3', '4', '5', '6', '7', '-0', '"0"', '"1"', '"0.1"', '"-0"', 'null', 'undefined', 'false', 'true', 'new String("0")', 'new Object' ];
     29 
     30 var exceptions = [
     31     '"-0" == false',
     32     '"0" == false',
     33     '"0" == new String("0")',
     34     '"1" == true',
     35     '-0 == "-0"',
     36     '-0 == "0"',
     37     '-0 == false',
     38     '-0 == new String("0")',
     39     '0 == "-0"',
     40     '0 == "0"',
     41     '0 == -0',
     42     '0 == false',
     43     '0 == new String("0")',
     44     '0 === -0',
     45     '0.1 == "0.1"',
     46     '1 == "1"',
     47     '1 == true',
     48     'new Object == new Object',
     49     'new Object === new Object',
     50     'new String("0") == false',
     51     'new String("0") == new String("0")',
     52     'new String("0") === new String("0")',
     53     'null == undefined',
     54 ];
     55 
     56 var exceptionMap = new Object;
     57 
     58 var i, j;
     59 
     60 for (i = 0; i < exceptions.length; ++i)
     61     exceptionMap[exceptions[i]] = 1;
     62 
     63 for (i = 0; i < values.length; ++i) {
     64     for (j = 0; j < values.length; ++j) {
     65         var expression = values[i] + " == " + values[j];
     66         var reversed = values[j] + " == " + values[i];
     67         shouldBe(expression, ((i == j) ^ (exceptionMap[expression] || exceptionMap[reversed])) ? "true" : "false");
     68     }
     69 }
     70 
     71 for (i = 0; i < values.length; ++i) {
     72     for (j = 0; j < values.length; ++j) {
     73         var expression = values[i] + " === " + values[j];
     74         var reversed = values[j] + " === " + values[i];
     75         shouldBe(expression, ((i == j) ^ (exceptionMap[expression] || exceptionMap[reversed])) ? "true" : "false");
     76     }
     77 }
     78