Comment by ahartmetz

IME there are these levels of tests:

- If you call the setter, the getter returns the same value - these are kinda bullshit and would be caught by the next level anyway

- Testing basic normal use

- Testing known difficulties of the implementation

- Exhaustive or randomized (if necessary) testing of the state space, ~= property-based testing

I expect AI to have very different levels of ability for these, not necessarily in strictly descending order as listed.