def test_implementsInterface(self):
        keydb = checkers.UNIXAuthorizedKeysFiles(self.userdb)
        verifyObject(checkers.IAuthorizedKeysDB, keydb)
L{checkers.UNIXAuthorizedKeysFiles} implements
dataset/ETHPy150Open twisted/twisted/twisted/conch/test/test_checkers.py/UNIXAuthorizedKeysFilesTests.test_implementsInterface