cipherunittest: check result after finish()
cipherunittest: check result after finish()

In common case update() function can not returns data.
So it is not a wrong. But after finish() all data must be returned.

oktavarium/qca,KDE/qca,karolherbst/qca,JoshuaKolden/qca,highfidelity/qca,oktavarium/qca,Bjoe/qca,JoshuaKolden/qca,sladage/qca,oktavarium/qca,JoshuaKolden/qca,Bjoe/qca,Bjoe/qca,KDE/qca,sladage/qca,karolherbst/qca,JoshuaKolden/qca,karolherbst/qca,Bjoe/qca,karolherbst/qca,KDE/qca,highfidelity/qca,highfidelity/qca,KDE/qca,oktavarium/qca,sladage/qca,sladage/qca,highfidelity/qca