timeclip.js - mozsearch

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/*

 * Any copyright is dedicated to the Public Domain.

 * http://creativecommons.org/licenses/publicdomain/

*/

var BUGNUMBER = 747197;

var summary = "TimeClip behavior for very large numbers";

print(BUGNUMBER + ": " + summary);

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

 * BEGIN TEST *

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

function addToLimit(n) { return 8.64e15 + n; }

assertEq(8.64e15 === addToLimit(0.0), true);

assertEq(8.64e15 === addToLimit(0.5), true);

assertEq(8.64e15 === addToLimit(0.5000000000000001), false);

var times =

  [Number.MAX_VALUE,

   -Number.MAX_VALUE,

   Infinity,

   -Infinity,

   addToLimit(0.5000000000000001),

   -addToLimit(0.5000000000000001)];

for (var i = 0, len = times.length; i < len; i++)

  var d = new Date();

  assertEq(d.setTime(times[i]), NaN, "times[" + i + "]");

  assertEq(d.getTime(), NaN);

  assertEq(d.valueOf(), NaN);

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

if (typeof reportCompare === "function")

  reportCompare(true, true);

print("Tests complete");