[earljwagner]

The concepts of Semantic Functions and Pragmatic Functions seem to be analogous to a Functional Core and Imperative shell (FCIS):

https://testing.googleblog.com/2025/10/simplify-your-code-fu...

The key insight of FCIS is that complicated logic with large dependencies leads to a large test suite that runs slowly. The solution is to isolate the complicated logic in the functional core. Test that separately from the simpler, more sequential tests of the imperative shell.

[bcjdjsndon]

I think it's much better put in your link. Op is too vague on what constitutes pragmatic v semantic... when what he should just say is make it pure functional because then you don't have to simulate a database in your test suite.