regress-465377.js - mozsearch

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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

//-----------------------------------------------------------------------------

var BUGNUMBER = 465377;

var summary = 'instanceof relations between Error objects';

var actual = '';

var expect = '';

//-----------------------------------------------------------------------------

test();

//-----------------------------------------------------------------------------

function test()

  printBugNumber(BUGNUMBER);

  printStatus (summary);

  expect = actual = 'No Exception';

try

    var list = [

      "Error",

      "InternalError",

      "EvalError",

      "RangeError",

      "ReferenceError",

      "SyntaxError",

      "TypeError",

      "URIError"

];

    var instances = [];

    for (var i = 0; i != list.length; ++i) {

      var name = list[i];

      var constructor = this[name];

      var tmp = constructor.name;

      if (tmp !== name)

        throw "Bad value for "+name+".name: "+String(tmp);

      instances[i] = new constructor();

    for (var i = 0; i != instances.length; ++i) {

      var instance = instances[i];

      var name = instance.name;

      var constructor = instance.constructor;

      var tmp = constructor.name;

      if (constructor !== this[name])

        throw "Bad value of (new "+name+").constructor: "+String(tmp);

      if (tmp !== name)

        throw "Bad value for constructor.name: "+String(tmp);

      if (!(instance instanceof Object))

        throw "Bad instanceof Object for "+name;

      if (!(instance instanceof Error))

        throw "Bad instanceof Error for "+name;

      if (!(instance instanceof constructor))

        throw "Bad instanceof constructor for "+name;

      if (instance instanceof Function)

        throw "Bad instanceof Function for "+name;

      for (var j = 1; j != instances.length; ++j) {

        if (i != j && instance instanceof instances[j].constructor) {

          throw "Unexpected (new "+name+") instanceof "+ instances[j].name;

    print("OK");

  catch(ex)

    actual = ex + '';

  reportCompare(expect, actual, summary);