Last modified: 2014-09-26 15:48:32 UTC
Particularly with data set #12 and #13. See https://travis-ci.org/wikimedia/mediawiki-core/jobs/24510844#L352 on travis The method gets most of the date correct but gets the day itself slightly wrong. To me this looks like something that changes slightly from system to system. The tests (or these 2 in particular) should probably be changed to ignore the changing day and just test the rest of the timestamp.
Change 131674 had a related patch set uploaded by Addshore: Ignore days of random failing tests in wfTimestampTest https://gerrit.wikimedia.org/r/131674
Change 131674 merged by jenkins-bot: Ignore days of random failing tests in wfTimestampTest https://gerrit.wikimedia.org/r/131674
Not random - the old value in the test was incorrect; this was fixed in recent versions of PHP and HHVM (due to a timelib update). More info in https://github.com/wikimedia/mediawiki-core/pull/19