whole_func_string: function (next) {
      genesisBlock.header = new BlockHeader(
                              testData.genesisBlockHeader
                            )
      blockchain.putGenesis(genesisBlock, next)
    }
func_code_string: function (next) {
      genesisBlock.header = new BlockHeader(
                              testData.genesisBlockHeader
                            )
      blockchain.putGenesis(genesisBlock, next)
    }
func_documentation_string: create and add genesis block