[OU-ADD] stock: tests

[hbrunn]

I think it's helpful to first fix the desired behavior post migration, and then look into how to achieve this. I've added a couple of tests here that fail, let's take it from there.

My suggestion would be:

• copy location_dest_id to location_final_id
• set location_dest_from_rule for all pull rules
• for done moves created by push rules, set location_final_id to last location_dst_id

[MiquelRForgeFlow]

[hbrunn]

that's expected, these tests are assertions how the migration should behave in my opinion, not how it currently behaves. see todos in the test code

[MiquelRForgeFlow]

Thanks, I hope your tests are correct, if not it will be a mess.