Configuring JUnit in MyEclipse

I'm using MyEclipse 5.5.1, and I am trying to figure out how to configure the userID and password that the various JUnit tests use for connecting to the database.  It has to be here somewhere--but it is not obviously in a property file.  I would expect that to be something that is user specific and configurable--but I have no idea where.  All of these JUnit tests were written (and apparently last used) many years ago, so no one still here has a clue how this stuff works.