In ScalaTest configuration.scala, methods are taking PosInt rather than Int. eg: MinSuccessful(value: PosInt) What's the difference among them?
My research on line shows that they belong to Anyvals. How does that benefit the scala test process?
They are just small wrappers around ints that verify at compile-time that the value is positive (or non-negative for PosZInt). See the documentation here.
The purpose is to prevent you from doing, for example, MinSuccessful(-1).