unit tests for simple disk objects recently added
unit tests for simple disk objects recently added

libtetcoin/libtetcoin-blockchain,libmetrocoin/libmetrocoin-blockchain,bitprim/bitprim-blockchain-replier,libtetcoin/libtetcoin-blockchain,libmetrocoin/libmetrocoin-blockchain,bitprim/bitprim-blockchain-replier,libmetrocoin/libmetrocoin-blockchain,libtetcoin/libtetcoin-blockchain