395501 - Several date test failures when not using standard time zones (bad tests?)

Status: RESOLVED DUPLICATE of bug 1089745

(Core :: JavaScript Engine, defect)

Description

[Swaroop C H]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.6) Gecko/20070725 Firefox/2.0.0.6
Build Identifier: http://hg.mozilla.org/actionmonkey/

When I run the SpiderMonkey test suite ( as detailed at http://developer.mozilla.org/en/docs/SpiderMonkey_Build_Documentation#Test ), then I get lot of date test failures. jorendorff suggests that it might be because I'm in the India time zone (GMT+0530 hours).

Reproducible: Always

Steps to Reproduce:
1. Set time zone to IST (GMT+0530)
2. Run the SpiderMonkey test suite (http://developer.mozilla.org/en/docs/SpiderMonkey_Build_Documentation#Test)
Actual Results:  
Example failures are:

*-* Testcase ecma/Date/15.9.3.1-2.js failed:

Failure messages were:
new Date( 1999,11,31,15,59,59,999).getUTCMinutes() = 29 FAILED! expected: 59
new Date( 1999,11,31,16,0,0,0).getUTCMinutes() = 30 FAILED! expected: 0
new Date( 1999,11,31,23,59,59,999).getUTCMinutes() = 29 FAILED! expected: 59
new Date( 2000,0,1,0,0,0,0).getUTCMinutes() = 30 FAILED! expected: 0
new Date( 2000,0,1,0,0,0,1).getUTCMinutes() = 30 FAILED! expected: 0

*-* Testcase ecma/Date/15.9.3.8-5.js failed:

Failure messages were:
new Date(-2208988800000).getMinutes() = 30 FAILED! expected: 0
new Date(-2208960000000).getMinutes() = 30 FAILED! expected: 0
new Date("Mon Jan 01 1900 05:30:00 GMT+0530 (IST)").getMinutes() = 30 FAILED! expected: 0
new Date("Mon Jan 01 1900 13:30:00 GMT+0530 (IST)").getMinutes() = 30 FAILED! expected: 0
new Date("Mon, 01 Jan 1900 00:00:00 GMT").getMinutes() = 30 FAILED! expected: 0
new Date("Mon, 01 Jan 1900 08:00:00 GMT").getMinutes() = 30 FAILED! expected: 0


Expected Results:  
There should be no date test failures.

Perhaps these are faulty tests, since I highly doubt the JavaScript engine's date class is bad!

Comment 1

[Swaroop C H]

Attachment: The entire list of failures reported by the test suite

Comment 2

[Swaroop C H]

Attachment: The entire list of failures reported by the test suite