simple-fib.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     = 326466;  // bug 326466, comment 1

var summary = "Simple Fibonacci iterator";

var actual, expect;

printBugNumber(BUGNUMBER);

printStatus(summary);

/**************

 * BEGIN TEST *

 **************/

function* fib()

  var a = 0, b = 1;

  while (true)

    yield a;

    var t = a;

    a = b;

    b += t;

var failed = false;

try

  var g = fib();

  if (g.next().value != 0)

    throw "F_0 = 0";

  if (g.next().value != 1)

    throw "F_1 = 1";

  if (g.next().value != 1)

    throw "F_2 = 1";

  if (g.next().value != 2)

    throw "F_3 = 2";

catch (e)

  failed = e;

expect = false;

actual = failed;

reportCompare(expect, actual, summary);