D6059: Add a test that adds a notification and closes it

[David Edmundson]

davidedmundson accepted this revision.
This revision is now accepted and ready to land.

REPOSITORY
  R120 Plasma Workspace

BRANCH
  arcpatch-D6059_1

REVISION DETAIL
  https://phabricator.kde.org/D6059

To: apol, #plasma, broulik, davidedmundson
Cc: mart, mck182, plasma-devel, ZrenBot, spstarr, progwolff, lesliezhai, 
ali-mohamed, jensreuterberg, abetts, sebas, apol, lukas