Without further investigation, the following patch fixes 3 of the 4
failures (I haven’t checked whether it doesn’t break other things in the
UITK though):

=== modified file 'src/Ubuntu/Components/plugin/privates/listviewextensions.cpp'
--- src/Ubuntu/Components/plugin/privates/listviewextensions.cpp        
2016-03-01 15:08:08 +0000
+++ src/Ubuntu/Components/plugin/privates/listviewextensions.cpp        
2016-03-08 09:55:06 +0000
@@ -141,11 +141,12 @@
     int currentIndex = this->currentIndex();
     int count = this->count();
 
+    int oldIndex = currentIndex;
     if (currentIndex >= 0 && count > 0) {
         currentIndex = qBound<int>(0, forwards ? currentIndex - 1 : 
currentIndex + 1, count - 1);
         setCurrentIndex(currentIndex);
         setKeyNavigationForListView(true);
     }
 
-    return true;
+    return (oldIndex != currentIndex);
 }

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https://bugs.launchpad.net/bugs/1554447

Title:
  4 webbrowser-app unit test failures with staging UITK

Status in ubuntu-ui-toolkit package in Ubuntu:
  New
Status in webbrowser-app package in Ubuntu:
  New

Bug description:
  Running webbrowser-app’s unit tests with the latest staging branch of
  the UITK as of today (lp:~ubuntu-sdk-team/ubuntu-ui-toolkit/staging at
  revision 1885), I’m seeing 4 unit test failures (see full log
  attached).

  Looking into those failures, it appears that they all have the same
  root cause: they expect a KeyUp/KeyDown event to transfer active focus
  from a listview to another element, and that doesn’t happen.
  https://bazaar.launchpad.net/~ubuntu-sdk-team/ubuntu-ui-
  toolkit/staging/revision/1878 looks like a likely culprit. In
  particular, ListViewProxy::keyPressEvent() always returns true, even
  if the event didn’t actually result in an index change.

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