D10119: Create test to assert metaDataRequestFinished is emitted once only

[Michael Heidelbach]

michaelh created this revision.
michaelh added reviewers: elvisangelaccio, smithjd, vhanda, ngraham, Dolphin.
michaelh requested review of this revision.

TEST PLAN
  Old code fails this test

REPOSITORY
  R824 Baloo Widgets

BRANCH
  unittest

REVISION DETAIL
  https://phabricator.kde.org/D10119

AFFECTED FILES
  autotests/CMakeLists.txt
  autotests/filemetadatawidgettest.cpp
  autotests/filemetadatawidgettest.h
  autotests/testtagged.m4a
  autotests/testtagged.mp3

To: michaelh, elvisangelaccio, smithjd, vhanda, ngraham, #dolphin
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