ecma_3_1/Object/regress-444787.js

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var gTestfile = 'regress-444787.js';
//-----------------------------------------------------------------------------
var BUGNUMBER = 444787;
var summary = 'Object.getPrototypeOf';
var actual = '';
var expect = '';


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

function test()
{
  enterFunc ('test');
  printBugNumber(BUGNUMBER);
  printStatus (summary);
 
  var i;
  var type;
  var instance;
  var types = [
    Array,
    Boolean,
    Date,
    Error,
    Function,
    Math,
    Number,
    Object,
    RegExp,
    String,
    ];

  for (i = 0; i < types.length; i++)
  {
    type = types[i];

    if (typeof type.__proto__ != 'undefined')
    {
      expect = type.__proto__;
      actual = Object.getPrototypeOf(type);
      reportCompare(expect, actual, summary + ': ' + type.name);
    }

    try
    {
      eval('instance = new ' + type.name);
      expect = type.prototype;
      actual = Object.getPrototypeOf(instance);
      reportCompare(expect, actual, summary + ': new ' + type.name);
    }
    catch(ex if ex instanceof TypeError)
    {
      print('Ignore ' + ex);
    }
    catch(ex)
    {
      actual = ex + '';
      reportCompare(expect, actual, summary + ': new ' + type.name);
    }

  }

  types = [null, undefined];

  for (i = 0; i < types.length; i++)
  {
    type = types[i];
    expect = 'TypeError: Object.getPrototype is not a function';
    try
    {
      actual = Object.getPrototype(null);
    }
    catch(ex)
    {
      actual = ex + '';
    }
    reportCompare(expect, actual, summary + ': ' + type);
  }

  var objects = [
    {instance: [0], type: Array},
    {instance: true, type: Boolean},
    {instance: false, type: Boolean},
    {instance: (function () {}), type: Function},
    {instance: eval, type: Function},
    {instance: parseInt, type: Function},
    {instance: 1.0, type: Number},
    {instance: Infinity, type: Number},
    {instance: NaN, type: Number},
    {instance: Math.PI, type: Number},
    {instance: {a: ''}, type: Object},
    {instance: /foo/, type: RegExp},
    {instance: "bar", type: String}
    ];

  for (i = 0; i < objects.length; i++)
  {
    instance = objects[i].instance;
    type     = objects[i].type;
    expect   = type.prototype;
    actual   = Object.getPrototypeOf(instance);
    reportCompare(expect, actual, summary + ' instance: ' + instance + ', type: ' + type.name);
  }

  exitFunc ('test');
}