I agree, but I still haven't seen an ORM that handles analytical queries well. Which means that, no matter what the other merits of the ORMs may be, there are

I agree, but I still haven't seen an ORM that handles analytical queries well. Which means that, no matter what the other merits of the ORMs may be, there are important use cases where raw SQL is the only realistic option. Which brings us back to how to test that code.