Further testing of p5 classes use outside the browser

[ksen0]

This is a technical issue on expanding test suite.
Improvements of automated/regression testing help new contributors make changes with confidence.

Tests for implementation of #6830

[VANSH3104]

Hi @ksen0
I see that the issue is related to further testing of p5 classes used outside the browser. Is this issue actively being worked on, or would it be okay if I started working on it?

[ksen0]

Hi @VANSH3104 ! Apologies, this one's already in progress. I'll update it to reflect that.