Add testing of data fetching

[garryod]

Would like to hear your thoughts on these, not 100% sure how I feel, but they're very quick to write

Didn't like the snapshot tests for this, went with regular old unit tests

[DiamondJoseph]

Might have to talk me through it
If Person is on Proposal and Session is in Proposal means that Person is on Session it seems sensible.
But I don't know how valid that presumption is: can a Person be on a Proposal but not on every Session?

I can probably sneak some time away from the americans tomorrow or Wednesday

[garryod]

Might have to talk me through it If Person is on Proposal and Session is in Proposal means that Person is on Session it seems sensible. But I don't know how valid that presumption is: can a Person be on a Proposal but not on every Session?

I can probably sneak some time away from the americans tomorrow or Wednesday

This is how things work in UAS and with file system permissions, so I reckon it's a good assumption for now

[DiamondJoseph]

I just don't want to be making any assumption in AuthZ. Underlying database should be explicit with what it wants.

Are you at any of the americans meetings today or tomorrow?