constructor-one-Date-argument.js

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/*

 * Any copyright is dedicated to the Public Domain.

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

*/

var BUGNUMBER = 1187233;

var summary =

  "Passing a Date object to |new Date()| should copy it, not convert it to " +

  "a primitive and create it from that.";

print(BUGNUMBER + ": " + summary);

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

 * BEGIN TEST *

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

Date.prototype.toString = Date.prototype.valueOf = null;

var d = new Date(new Date(8675309));

assertEq(d.getTime(), 8675309);

Date.prototype.valueOf = () => 42;

d = new Date(new Date(8675309));

assertEq(d.getTime(), 8675309);

var D = newGlobal().Date;

D.prototype.toString = D.prototype.valueOf = null;

var d = new Date(new D(3141592654));

assertEq(d.getTime(), 3141592654);

D.prototype.valueOf = () => 525600;

d = new Date(new D(3141592654));

assertEq(d.getTime(), 3141592654);

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

if (typeof reportCompare === "function")

  reportCompare(true, true);

print("Tests complete");