gecko-dev/js/tests/js1_7/geniter/sequential-yields.js

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
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 * License.
 *
 * The Original Code is JavaScript Engine testing utilities.
 *
 * The Initial Developer of the Original Code is
 * Jeff Walden.
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 * the Initial Developer. All Rights Reserved.
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 *
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var gTestfile = 'sequential-yields.js';
//-----------------------------------------------------------------------------
var BUGNUMBER     = "(none)";
var summary = "Sequential yields";
var actual, expect;

printBugNumber(BUGNUMBER);
printStatus(summary);

/**************
 * BEGIN TEST *
 **************/

function fib()
{
  yield 0; // 0
  yield 1; // 1
  yield 1; // 2
  yield 2; // 3
  yield 3; // 4
  yield 5; // 5
  yield 8; // 6
}

var failed = false;
var it = fib();

try
{
  if (it.next() != 0)
    throw "0 failed";
  if (it.next() != 1)
    throw "1 failed";
  if (it.next() != 1)
    throw "2 failed";
  if (it.next() != 2)
    throw "3 failed";
  if (it.next() != 3)
    throw "4 failed";
  if (it.next() != 5)
    throw "5 failed";
  if (it.next() != 8)
    throw "6 failed";

  var stopPassed = false;
  try
  {
    it.next();
  }
  catch (e)
  {
    if (e === StopIteration)
      stopPassed = true;
  }
  if (!stopPassed)
    throw "missing or incorrect StopIteration";
}
catch (e)
{
  failed = e;
}



expect = false;
actual = failed;

reportCompare(expect, actual, summary);