event_range = 0 doesn't work

[gonzaponte]

I was trying to run diomira with event_range = 0 for a test and it crashes.

• Is this behaviour expected?
• Should it be fixed?

[jjgomezcadenas]

Diomira is not supposed to run with event_rang=0, but probably we want to add a protection so that it insults nicely the user (something like: you moron, want me to run with no events? ) and exit, rather than crashing. Same for other cities.

[gonzaponte]

Well, it is not completely clear to me whether we should allow it or not. From my experience, I think it could be a way of testing the cities "initialization process", that is, everything before dataflow.push. In particular, I've found this situation while trying to add a test for #570. I wanted to run diomira with no events so it doesn't draw random numbers, but it does run the part of the code were the seed is established.

[jjgomezcadenas]

Sounds to me as too technical. Normal user should not run diomira with event_range=0, I believe.