1264604 - Findbar focus handling test test_bug360437.xul permafails on Linux only

Status: NEW

(Core :: DOM: Core & HTML, defect, P5)

Description

[Mike de Boer [:mikedeboer]]

Whilst working on bug 1261584 to add e10s coverage to the test_bug360437.xul mochitest-chrome test, a try push revealed that it will permanently fail on all Linux variants we run it on.
Note that this makes the intermittent in bug 1261600 _always_ reproducible.

Thusly, I landed this test as disabled on Linux.

STR:
1. Re-enable 'test_bug360437.xul' in toolkit/content/tests/chrome/chrome.ini
2. Run `./mach mochitest toolkit/content/tests/chrome/test_bug360437.xul in a local debug build
3. Watch it fail ;-)

I get the following debug-build log spew in my console that might someone find useful. Please note that you will get the same log output when you run the test:

[Child 657] WARNING: NS_ENSURE_SUCCESS(rv, rv) failed with result 0x80004005: file /home/mike/Projects/fx-team/toolkit/xre/nsXREDirProvider.cpp, line 1476
[Parent 541] WARNING: '!NodeIsInTraversalRange(mLast, mPre, startNode, startIndx, endNode, endIndx)', file /home/mike/Projects/fx-team/dom/base/nsContentIterator.cpp, line 477
[Parent 541] WARNING: '!cChild', file /home/mike/Projects/fx-team/dom/base/nsContentIterator.cpp, line 356
[Parent 541] WARNING: '!parent', file /home/mike/Projects/fx-team/dom/base/nsContentIterator.cpp, line 642
[Parent 541] WARNING: '!mFirst', file /home/mike/Projects/fx-team/dom/base/nsContentIterator.cpp, line 375
[Parent 541] WARNING: '!NodeIsInTraversalRange(mLast, mPre, startNode, startIndx, endNode, endIndx)', file /home/mike/Projects/fx-team/dom/base/nsContentIterator.cpp, line 477
[Parent 541] WARNING: '!NodeIsInTraversalRange(mLast, mPre, startNode, startIndx, endNode, endIndx)', file /home/mike/Projects/fx-team/dom/base/nsContentIterator.cpp, line 477
[Parent 541] WARNING: '!cChild', file /home/mike/Projects/fx-team/dom/base/nsContentIterator.cpp, line 356
[Parent 541] WARNING: '!parent', file /home/mike/Projects/fx-team/dom/base/nsContentIterator.cpp, line 642
[Parent 541] WARNING: '!mFirst', file /home/mike/Projects/fx-team/dom/base/nsContentIterator.cpp, line 375
[Parent 541] WARNING: '!NodeIsInTraversalRange(mLast, mPre, startNode, startIndx, endNode, endIndx)', file /home/mike/Projects/fx-team/dom/base/nsContentIterator.cpp, line 477
3 INFO TEST-PASS | toolkit/content/tests/chrome/test_bug360437.xul | Find field isn't focused 
[Parent 541] WARNING: '!NodeIsInTraversalRange(mLast, mPre, startNode, startIndx, endNode, endIndx)', file /home/mike/Projects/fx-team/dom/base/nsContentIterator.cpp, line 477
[Parent 541] WARNING: '!cChild', file /home/mike/Projects/fx-team/dom/base/nsContentIterator.cpp, line 356
[Parent 541] WARNING: '!parent', file /home/mike/Projects/fx-team/dom/base/nsContentIterator.cpp, line 642
[Parent 541] WARNING: '!mFirst', file /home/mike/Projects/fx-team/dom/base/nsContentIterator.cpp, line 375
[Parent 541] WARNING: '!NodeIsInTraversalRange(mLast, mPre, startNode, startIndx, endNode, endIndx)', file /home/mike/Projects/fx-team/dom/base/nsContentIterator.cpp, line 477
[Parent 541] WARNING: '!cChild', file /home/mike/Projects/fx-team/dom/base/nsContentIterator.cpp, line 356
[Parent 541] WARNING: '!parent', file /home/mike/Projects/fx-team/dom/base/nsContentIterator.cpp, line 642
[Parent 541] WARNING: '!mFirst', file /home/mike/Projects/fx-team/dom/base/nsContentIterator.cpp, line 375
[Parent 541] WARNING: '!NodeIsInTraversalRange(mLast, mPre, startNode, startIndx, endNode, endIndx)', file /home/mike/Projects/fx-team/dom/base/nsContentIterator.cpp, line 477

... and here the assertion fails due to `document.commandDispatcher.focusedElement` being set to document.body, not the input element that we're expecting.

Comment 1

[Mike de Boer [:mikedeboer]]

Oh, I forgot the most interesting bit: it doesn't fail when testing a document in a remote, e10s browser, only the non-remote variant!

Comment 2

[Jens Stutte [:jstutte]]

Bulk-downgrade of unassigned, 4 years untouched DOM/Storage bugs' priority.

If you have reason to believe this is wrong (especially for the severity), please write a comment and ni :jstutte.