Add a unit test to ensure that Datums w/ default values work correctly
Add a unit test to ensure that Datums w/ default values work correctly

nkreipke/rethinkdb-net,Ernesto99/rethinkdb-net,nkreipke/rethinkdb-net,LukeForder/rethinkdb-net,kangkot/rethinkdb-net,bbqchickenrobot/rethinkdb-net,kangkot/rethinkdb-net,LukeForder/rethinkdb-net,bbqchickenrobot/rethinkdb-net,Ernesto99/rethinkdb-net