Explained in the README how to use npm to load the dependencies and run tests. Too bad about NODE_PATH...
Don't try to find parserTests.txt in assorted places--if it isn't present, fetch from gerrit. You can symlink from core if you're developing on both parsers, and the fetch script will not overwrite.
Use __dirname in parserTests.js to allow the script to run independent of current working directory.
Change-Id: I4c8b884e91f4fdeae385c7697aff768bdd199dd5