Testing with TranzactIO

[RobinJDCox]

TranzactIO looks really interesting library, great work! 🙂 I'm looking at solving exactly the kind of problem you've described where I can complete my transaction after performing multiple DB operations and various bits if business logic.

My question is around testing, is there a recommended approach when using TranzactIO? If my database classes return a RIO[Connection, A] and my core service logic completes that transaction, resulting in a RIO[Database, A] it would be great to be able to provide implementations of Connection and Database that don't require a running SQL database.

[PawelJ-PL]

I'm using TranzactIO in my project. For tests I've prepared fake connection source layer like: https://github.com/PawelJ-PL/elevation_of_privilege_online/blob/master/src/test/scala/com/github/paweljpl/eoponline/testdoubles/FakeConnectionSource.scala. Thanks to I'm able to use it in my tests, for example https://github.com/PawelJ-PL/elevation_of_privilege_online/blob/be161a6fe6873e9cd117b22a7af7567fe5a0e426/src/test/scala/com/github/paweljpl/eoponline/game/GamesSpec.scala#L53. Of course, I don't know if this is the recommended approach, if there are any others, I'd be happy to see them.

[RobinJDCox]

That works for my use-case, thanks for the suggestion!

[gaelrenoux]

I haven't missed that and I think it's a great idea, I just don't have had the time yet. I thought I could work on it today, but issue 18 took priority.

[gaelrenoux]

Solved in #22