[KronisLV]

> So game design is naturally a highly-coupled, incohesive problem space that is poorly suited to unit testing.

Poorly suited? Perhaps, but so are certain web system architectures as well, neither is impossible to test.

I think Factorio is an example that it can be done if you care about it... it's just that most studios shipping games don't.

https://www.factorio.com/blog/post/fff-438

https://www.factorio.com/blog/post/fff-366

Of course, in their case it can actually be justified, because the game itself is very dependent on the logic working correctly, rather than your typical FPS game slop that just needs to look good.

[bccdee]

Yeah I suspect Factorio's "complex game logic + simple(ish) 2d engine + minimal team structure" situation meant that the usual tradeoffs didn't apply. It's really cool that they pulled it off, though—I can't imagine it was easy, even then.