Write unit tests

[Stiivi]

Reason for not yet having unit tests: "generated output compiles correctly" is sufficient for the time being. However, this might not be very sustainable in the long-run.

[wizzat]

You need a couple of "end to end" unit tests for the purposes of describing what the input and outputs look like.

[Stiivi]

@wizzat agreed, will add them gradually as the idea stabilizes. This is still proof-of-concept/prototype.

Just to get an idea how the current Python output looks like for the included example, here is the generated file.

Might be not a bad idea to add small shell script that would:

1. generate few Python outputs
2. run the Python outputs through mypy and maybe some additional linters

[wizzat]

Sounds like a solid idea - the faster you get something like that in place the less painful it will be to fix it when it invariably breaks.