The ExecuteNonQueryTest doesn't create the Column family properly.

The cks.ColumnFamilyExists() always returns false
The  var family = db.GetColumnFamily(""); always return a non-null value.
The cassandra-cli doesn't show the column name; however, if the apps rerun the ExecuteNonQuery throws an
Message=Cannot add already existing column family "cats" to keyspace "Moon" exception.