def setUp(self): listString = [ '/tmp/SACN43:ncp1:CWAO:SA:3.A.I.E::2012', '/tmp/SACN42:ncp1:CWAO:SA:2.A.I.E::2012', '/tmp/SACN42:ncp1:CWAO:SA:1.A.I.E::2012', '/tmp/SACN41:ncp1:CWAO:SA:2.A.I.E::2012' ] self.multiKeysStringSorter = MultiKeysStringSorter(listString)