Calling rowCount inside another auto test function yields unexpected
results, if rowCount fails. Without a check for QTest::currentTestFailed
the failure will not stop the calling function and other functions like
rowsInserted and rowsRemoved might happily continue even though their
requirements are not met. That caused a crash on winrt under certain
circumstances.
In addition to that TRY_WAIT now does not only wait for the given
amount of time, but also gives feedback about its result. Before
this change TRY_WAIT was basically useless, as it gave no indication
about its success/failure.
Fixes: QTBUG-71121
Change-Id: Ibd3f233a0b913db799814be97c4274d510643c74
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>