documentation on testing a new port?

I'm working on creating a new Portfile but I can't find any documentation on how to test it. My previous forays into macports were all modifications to pre-existing ports. All the docs are pointing at the old darwinports.opendarwin.org which no longer exists. Plus, in the wiki the link to the "old" docs which haven't been moved over yet just redirects to the macports.org homepage. I tried shoving the new Portfile into /opt/local/var/db/dports/ sources/rsync.rsync.darwinports.org_dpupdate_dports/multimedia (where it should eventually go) but the port command doesn't pick it up. Is there an index I need to muck with? Any pointers would be welcome. cr