gecko-dev/js/tests/js1_5/String/regress-354541-04.js

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 *                 Brendan Eich
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//-----------------------------------------------------------------------------
var bug = 354541;
var summary = 'Regression to standard class constructors in case labels';
var actual = '';
var expect = '';

//-----------------------------------------------------------------------------
test();
//-----------------------------------------------------------------------------

function test()
{
  enterFunc ('test');
  printBugNumber (bug);
  printStatus (summary + ': in function');

  String.prototype.trim = function() { return 'hallo'; };

  const S = String;
  const Sp = String.prototype;

  expect = 'hallo';
  var expectStringInvariant = true;
  var actualStringInvariant;
  var expectStringPrototypeInvariant = true;
  var actualStringPrototypeInvariant;

  if (typeof Script == 'undefined')
  {
    print('Test skipped. Script is not defined');
    var actualStringInvariant = true;
    var actualStringPrototypeInvariant = true;
  }
  else
  {
    s = Script('var tmp = function(o) { switch(o) { case String: case 1: return ""; } }; actualStringInvariant = (String === S); actualStringPrototypeInvariant = (String.prototype === Sp); actual = "".trim();');
    try
    {
      s();
    }
    catch(ex)
    {
      actual = ex + '';
    }
  }
  
  reportCompare(expect, actual, 'trim() returned');
  reportCompare(expectStringInvariant, actualStringInvariant, 'String invariant');
  reportCompare(expectStringPrototypeInvariant, 
                actualStringPrototypeInvariant,
                'String.prototype invariant');

  exitFunc ('test');
}