I do mach.d - https://github.com/pineapplemachine/mach.d

I've been setting up CI tests and OSX and Linux tests are good to go thanks to Travis. I'm having a little more difficulty with testing on Windows via AppVeyor, since DMD is too memory-hungry to `dub test` without a fatal error when DMD was compiled for a 32-bit target as opposed to 64-bit, as is the case for all Windows releases.

How can I compile and run unit tests for only a part of the library at a time, so that 32-bit Windows can run tests too? (Which is actually important, since there are different x86 and x86-64 implementations of some library functions.) Or is there another solution? It's my understanding that phobos would have a similar problem if it didn't do something deliberate with how tests are run.

Speaking of which, is there any AppVeyor config or script laying around somewhere for how to install 64-bit DMD? Since I would ideally like to automate testing with both 32-bit and 64-bit DMD

On Monday, 24 September 2018 at 09:49:38 UTC, pineapple wrote:
> I've been setting up CI tests and OSX and Linux tests are good to go thanks to Travis. I'm having a little more difficulty with testing on Windows via AppVeyor, since DMD is too memory-hungry to `dub test` without a fatal error when DMD was compiled for a 32-bit target as opposed to 64-bit, as is the case for all Windows releases.
>
> How can I compile and run unit tests for only a part of the library at a time, so that 32-bit Windows can run tests too? (Which is actually important, since there are different x86 and x86-64 implementations of some library functions.)

If there was a 64-bit DMD for Windows (not available AFAIK), you'd simply compile with `-m32` or `-m32mscoff`.

> Or is there another solution? It's my understanding that phobos would have a similar problem if it didn't do something deliberate with how tests are run.

Definitely; there are various Phobos modules requiring more than 2 GB of memory when compiled with `-unittest` (at least when emitting 64-bit code). That's why they are compiled separately; I once tried compiling all of them at once, and that took something like 30 GB IIRC. ;)