Renaming database - ok?

[JLGF1]

Are there any unwanted side-effects from renaming the DB?  For example, renaming a test DB name to a prod DB name?

Should this be as straight-forward as renaming the DB file?

[Mario]

No problem with that. Note that you will have to open the database manually once via Database > Open afterwards.
Just don't duplicate databases without changing their unique ids. See Change Database ID