js/src/tests/ecma_3/Expressions/11.6.1-1.js

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/js/src/tests/ecma_3/Expressions/11.6.1-1.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,142 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +/*
    1.10 + *
    1.11 + * Date:    14 Mar 2003
    1.12 + * SUMMARY: Testing left-associativity of the + operator
    1.13 + *
    1.14 + * See ECMA-262 Ed.3, Section 11.6.1, "The Addition operator"
    1.15 + * See http://bugzilla.mozilla.org/show_bug.cgi?id=196290
    1.16 + *
    1.17 + * The upshot: |a + b + c| should always equal |(a + b) + c|
    1.18 + *
    1.19 + */
    1.20 +//-----------------------------------------------------------------------------
    1.21 +var UBound = 0;
    1.22 +var BUGNUMBER = 196290;
    1.23 +var summary = 'Testing left-associativity of the + operator';
    1.24 +var status = '';
    1.25 +var statusitems = [];
    1.26 +var actual = '';
    1.27 +var actualvalues = [];
    1.28 +var expect= '';
    1.29 +var expectedvalues = [];
    1.30 +
    1.31 +
    1.32 +status = inSection(1);
    1.33 +actual = 1 + 1 + 'px';
    1.34 +expect = '2px';
    1.35 +addThis();
    1.36 +
    1.37 +status = inSection(2);
    1.38 +actual = 'px' + 1 + 1;
    1.39 +expect = 'px11';
    1.40 +addThis();
    1.41 +
    1.42 +status = inSection(3);
    1.43 +actual = 1 + 1 + 1 + 'px';
    1.44 +expect = '3px';
    1.45 +addThis();
    1.46 +
    1.47 +status = inSection(4);
    1.48 +actual = 1 + 1 + 'a' + 1 + 1 + 'b';
    1.49 +expect = '2a11b';
    1.50 +addThis();
    1.51 +
    1.52 +/*
    1.53 + * The next sections test the + operator via eval()
    1.54 + */
    1.55 +status = inSection(5);
    1.56 +actual = sumThese(1, 1, 'a', 1, 1, 'b');
    1.57 +expect = '2a11b';
    1.58 +addThis();
    1.59 +
    1.60 +status = inSection(6);
    1.61 +actual = sumThese(new Number(1), new Number(1), 'a');
    1.62 +expect = '2a';
    1.63 +addThis();
    1.64 +
    1.65 +status = inSection(7);
    1.66 +actual = sumThese('a', new Number(1), new Number(1));
    1.67 +expect = 'a11';
    1.68 +addThis();
    1.69 +
    1.70 +
    1.71 +
    1.72 +//-----------------------------------------------------------------------------
    1.73 +test();
    1.74 +//-----------------------------------------------------------------------------
    1.75 +
    1.76 +
    1.77 +
    1.78 +function addThis()
    1.79 +{
    1.80 +  statusitems[UBound] = status;
    1.81 +  actualvalues[UBound] = actual;
    1.82 +  expectedvalues[UBound] = expect;
    1.83 +  UBound++;
    1.84 +}
    1.85 +
    1.86 +/*
    1.87 + * Applies the + operator to the provided arguments via eval().
    1.88 + *
    1.89 + * Form an eval string of the form 'arg1 + arg2 + arg3', but
    1.90 + * remember to add double-quotes inside the eval string around
    1.91 + * any argument that is of string type. For example, suppose the
    1.92 + * arguments were 11, 'a', 22. Then the eval string should be
    1.93 + *
    1.94 + *              arg1 + quoteThis(arg2) + arg3
    1.95 + *
    1.96 + * If we didn't put double-quotes around the string argument,
    1.97 + * we'd get this for an eval string:
    1.98 + *
    1.99 + *                     '11 + a + 22'
   1.100 + *
   1.101 + * If we eval() this, we get 'ReferenceError: a is not defined'.
   1.102 + * With proper quoting, we get eval('11 + "a" + 22') as desired.
   1.103 + */
   1.104 +function sumThese()
   1.105 +{
   1.106 +  var sEval = '';
   1.107 +  var arg;
   1.108 +  var i;
   1.109 +
   1.110 +  var L = arguments.length;
   1.111 +  for (i=0; i<L; i++)
   1.112 +  {
   1.113 +    arg = arguments[i];
   1.114 +    if (typeof arg === 'string')
   1.115 +      arg = quoteThis(arg);
   1.116 +
   1.117 +    if (i < L-1)
   1.118 +      sEval += arg + ' + ';
   1.119 +    else
   1.120 +      sEval += arg;
   1.121 +  }
   1.122 +
   1.123 +  return eval(sEval);
   1.124 +}
   1.125 +
   1.126 +
   1.127 +function quoteThis(x)
   1.128 +{
   1.129 +  return '"' + x + '"';
   1.130 +}
   1.131 +
   1.132 +
   1.133 +function test()
   1.134 +{
   1.135 +  enterFunc('test');
   1.136 +  printBugNumber(BUGNUMBER);
   1.137 +  printStatus(summary);
   1.138 +
   1.139 +  for (var i=0; i<UBound; i++)
   1.140 +  {
   1.141 +    reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
   1.142 +  }
   1.143 +
   1.144 +  exitFunc ('test');
   1.145 +}

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