Unit tests: fix compilation with check < 0.9.9
Unit tests: fix compilation with check < 0.9.9

Relates NEMO#701

mikkoharju/mce,maikelwever/mce,mikkoharju/mce,mikkoharju/mce,android-808/mce,maikelwever/mce,mlehtima/mce,spiiroin/mce,mlehtima/mce,maikelwever/mce,android-808/mce,spiiroin/mce,android-808/mce,kimmoli/mce,spiiroin/mce,kimmoli/mce,mlehtima/mce,kimmoli/mce,spiiroin/mce,maikelwever/mce,kimmoli/mce,mikkoharju/mce,mlehtima/mce,android-808/mce