In the RaiseAssert test library, how to best assert that a tested method throws an exception of a ce...

# arrow

[David Kubecka]

In the RaiseAssert test library, how to best assert that a tested method throws an exception of a certain type, without actually checking against the full exception instance? Currently, I'm doing this

RaiseAssert.assertThat { ... }.isEqualTo(RaiseResult.FailureWithException(...))

but that requires specifying the full exception instance, not just its type.

EDIT: I now see that there indeed is an isInstanceOf method. Sorry.

[Riccardo Cardin]

Are you using the assertj-arrow-core testing library?

[Riccardo Cardin]

What do you think about it?

[David Kubecka]

Yes, I've been using that library for a short time. So far I used only simple stuff, mostly mimicking the assertj conventions. I would just appreciate more inline documentation of the top-level methods (e.g. assertThatThrownBy )

[Riccardo Cardin]

Ok, thanks for the feedback. I'll try to add more documentation ❤️

[Riccardo Cardin]

David, I released version 1.2.1 of the library. I tried to add some more doc. Let me know if it’s what you asked for 🙂

[David Kubecka]

Yes, that's better! It might be worth mentioning, though, that assertThatRaisedBy propagates the possible exception. And also that it throws an exception if the block succeeds. But this is really a small detail.