I am currently developing a little application which is supposed to run on a raspberry. I decided to take advantage of PW's capabilities to deal with data not only in the sense of a common website but more as an application.  I wrote a lot of modules for this and I wrote tests for some of the methods (using PHPUnit). This works fine so far for methods which are independent from database (e.g. calculating an upcoming date/time by a given schedule). Now I am thinking of extending this by writ