This is something I had noticed some time ago... [Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9.2a1pre) Gecko/20090211 SeaMonkey/2.0a3pre] (experimental/_m-c_, home, optim default) (W2Ksp4) (http://hg.mozilla.org/mozilla-central/rev/319799933481 +http://hg.mozilla.org/comm-central/rev/...) { 27247 INFO Running /tests/content/media/video/test/test_duration1.html... 27248 ERROR TEST-UNEXPECTED-FAIL | /tests/content/media/video/test/test_duration1.html | Check duration of video: 3.865999937057495 } This occurs (the first time only ?) when I run the mochitest suite. Afair, I tried to reproduce by running this test individually, but it passed.

The expected result seems to be 3.833...: { 20 ok(Math.round(v.duration*1000) == 3833, "Check duration of video: " + v.duration); }

[Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9.2a1pre) Gecko/20090210 Minefield/3.2a1pre] (home, optim default) (W2Ksp4) (http://hg.mozilla.org/mozilla-central/rev/561dc7d5c746) { 27596 INFO TEST-PASS | /tests/content/media/video/test/test_duration1.html | Check duration of video: 3.8329999446868896 } [Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9.2a1pre) Gecko/20090213 Minefield/3.2a1pre] (home, optim default) (W2Ksp4) (http://hg.mozilla.org/mozilla-central/rev/cdf8e90aeb9d) { 27601 ERROR TEST-UNEXPECTED-FAIL | /tests/content/media/video/test/test_duration1.html | Check duration of video: 3.865999937057495 } This is a regression then. (In reply to comment #0) > This occurs (the first time only ?) when I run the mochitest suite. > Afair, I tried to reproduce by running this test individually, but it passed. I confirm that I can't reproduce by running only this test or only its whole directory. I think I didn't try to run the whole tests suite again. Yet, I think I saw this bug recently on some tinderbox !?

(In reply to comment #2) > This is a regression then. If so then it could be: http://hg.mozilla.org/mozilla-central/pushloghtml?startdate=2009-02-10+14%3A06%3A13&enddate=2009-02-11+08%3A48%3A02 and maybe one of bug 469272, bug 476811 or bug 476176.

Probably 469272. I'm not really sure

[Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9.2a1pre) Gecko/20090228 Minefield/3.2a1pre] (home, optim default) (W2Ksp4) (http://hg.mozilla.org/mozilla-central/rev/f7f62131998d) (Bug still there.)

Afair, I have not seen this again since my 20090316 build.