911079 - Wrong Date object behavior when setFullYear() < 100

Status: RESOLVED DUPLICATE of bug 911081

(Firefox :: Untriaged, defect)

Description

[forceuserz]

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:22.0) Gecko/20100101 Firefox/22.0 (Beta/Release)
Build ID: 20130627161504

Steps to reproduce:

var a = new Date();
console.log("a1 = "+a.toString());
var b = new Date(a);
console.log("b = "+b.toString());
a.setFullYear(69);
console.log("a2 = "+a.toString());
var c = new Date(a);
console.log("c = "+c.toString());
var d = new Date();
d.setTime(a.getTime());
console.log("d = "+d.toString());
a.setFullYear(70);
console.log("a3 = "+a.toString());
var e = new Date(a);
console.log("e = "+e.toString());
a.setFullYear(100);
console.log("a4 = "+a.toString());
var h = new Date(a);
console.log("h = "+h.toString());


Actual results:

a1 = Fri Aug 30 2013 11:17:30 GMT+0300 (EEST)
b = Fri Aug 30 2013 11:17:30 GMT+0300 (EEST)
a2 = Fri Aug 30 0069 11:17:30 GMT+0300 (MSK)
c = Invalid Date
d = Fri Aug 30 0069 11:17:30 GMT+0300 (MSK)
a3 = Sat Aug 30 0070 11:17:30 GMT+0300 (MSK)
e = Sun Aug 30 1970 11:17:30 GMT+0300 (MSK)
a4 = Mon Aug 30 0100 11:17:30 GMT+0300 (MSK)
h = Mon Aug 30 0100 11:17:30 GMT+0300 (MSK)


Expected results:

a1 = Fri Aug 30 2013 11:17:30 GMT+0300 (EEST)
b = Fri Aug 30 2013 11:17:30 GMT+0300 (EEST)
a2 = Fri Aug 30 0069 11:17:30 GMT+0300 (EEST)
c = Fri Aug 30 0069 11:17:30 GMT+0300 (EEST)
d = Fri Aug 30 0069 11:17:30 GMT+0300 (EEST)
a3 = Sat Aug 30 0070 11:17:30 GMT+0300 (EEST)
e = Sun Aug 30 0070 11:17:30 GMT+0300 (EEST)
a4 = Mon Aug 30 0100 11:17:30 GMT+0300 (EEST)
h = Mon Aug 30 0100 11:17:30 GMT+0300 (EEST)