regress-181654.js - mozsearch

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/* -*- tab-width: 2; 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/. */

/*

 * Date:    23 Nov 2002

 * SUMMARY: Calling toString for an object derived from the Error class

 *		   results in an TypeError (Rhino only)

 * See http://bugzilla.mozilla.org/show_bug.cgi?id=181654

*/

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

var UBound = 0;

var BUGNUMBER = '181654';

var summary = 'Calling toString for an object derived from the Error class should be possible.';

var status = '';

var statusitems = [];

var actual = '';

var actualvalues = [];

var expect= '';

var expectedvalues = [];

var EMPTY_STRING = '';

var EXPECTED_FORMAT = 0;

// derive MyError from Error

function MyError( msg )

  this.message = msg;

MyError.prototype = new Error();

MyError.prototype.name = "MyError";

status = inSection(1);

var err1 = new MyError('msg1');

actual = examineThis(err1, 'msg1');

expect = EXPECTED_FORMAT;

addThis();

status = inSection(2);

var err2 = new MyError(String(err1));

actual = examineThis(err2, err1);

expect = EXPECTED_FORMAT;

addThis();

status = inSection(3);

var err3 = new MyError();

actual = examineThis(err3, EMPTY_STRING);

expect = EXPECTED_FORMAT;

addThis();

status = inSection(4);

var err4 = new MyError(EMPTY_STRING);

actual = examineThis(err4, EMPTY_STRING);

expect = EXPECTED_FORMAT;

addThis();

// now generate an error -

status = inSection(5);

try

  throw new MyError("thrown");

catch(err5)

  actual = examineThis(err5, "thrown");

expect = EXPECTED_FORMAT;

addThis();

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

test();

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

/*

 * Searches err.toString() for err.name + ':' + err.message,

 * with possible whitespace on each side of the colon sign.

 * We allow for no colon in case err.message was not provided by the user.

 * In such a case, SpiderMonkey and Rhino currently set err.message = '',

 * as allowed for by ECMA 15.11.4.3. This makes |pattern| work in this case.

 * If this is ever changed to a non-empty string, e.g. 'undefined',

 * you may have to modify |pattern| to take that into account -

*/

function examineThis(err, msg)

  var pattern = err.name + '\\s*:?\\s*' + msg;

  return err.toString().search(RegExp(pattern));

function addThis()

  statusitems[UBound] = status;

  actualvalues[UBound] = actual;

  expectedvalues[UBound] = expect;

  UBound++;

function test()

  printBugNumber(BUGNUMBER);

  printStatus (summary);

  for (var i = 0; i < UBound; i++)

    reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);