[Webkit-unassigned] [Bug 153941] New: [GTK] visible-control-characters tests should not be passing
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Sat Feb 6 08:55:09 PST 2016
https://bugs.webkit.org/show_bug.cgi?id=153941
Bug ID: 153941
Summary: [GTK] visible-control-characters tests should not be
passing
Classification: Unclassified
Product: WebKit
Version: Other
Hardware: PC
OS: Linux
Status: NEW
Severity: Normal
Priority: P2
Component: WebKit Gtk
Assignee: webkit-unassigned at lists.webkit.org
Reporter: mcatanzaro at igalia.com
CC: bugs-noreply at webkitgtk.org
The following tests are sometimes passing for the last couple of months:
fast/text/control-characters/visible-control-characters-1.html
fast/text/control-characters/visible-control-characters-2.html
fast/text/control-characters/visible-control-characters-2.xhtml
fast/text/control-characters/visible-control-characters-3.html
fast/text/control-characters/visible-control-characters-3.xhtml
It's bad because these are expected mismatch tests, they should never pass.
The first pass (known bad commit) is r192730, but that commit is probably not to blame. Then there are many flaky runs. Then r192779 is the last known bad commit, and then test consistently fails (good) for a while, so it was fixed for a range of commits. The next known pass (bad) is r193641, and it's flaky from then on.
So we know:
* Tests broken shortly before r192730, probably exclusive
* Tests fixed shortly after r192779, exclusive
* Tests broken again sometimes before r193642, exclusive
Unfortunately there was some problem with the bot, and the last results we have before r193641 are for r193617, which is a rather big range of commits.
Since the tests were broken, fixed, then broken again, I at first suspected r192727, shortly before r192730. However that was rolled out quickly in r192731, but the tests continued to pass (bad) for some time after that, which doesn't match up. Still, it seems quite possible I broke it with theme changes.
(visible-control-characters-1 seems to have a few additional rare, flaky failures outside of those ranges.)
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