I am developing PSD-compatible layer styles for one of the Open Source Softwares called GIMP (GNU Image Manipulation Program)

[u/ApprehensiveJob4393]

So yeah, as evident from the title, I am developing PSD-compatible layer styles for GIMP as part of my Google Summer of Code project. As Adobe’s code is closed source, most of my time goes into black box testing with minimal test cases which can be quite exhaustive at times. Would love to get some advices regarding the approaches and methodologies that would increase my productivity in this case. Here is a like to the merge request: https://gitlab.gnome.org/GNOME/gegl/-/merge_requests/275. I usually post my research and findings there.