[Haskell-cafe] In-memory Handle for testing

Antoine Latter aslatter at gmail.com
Fri Jan 20 17:36:44 CET 2012

On Fri, Jan 20, 2012 at 5:53 AM, Simon Hengel <sol at typeful.net> wrote:
> For testing I want to stub handles, performing all reads and writes in
> memory (and in process, so no mmap).  From looking at the documentation
> of mkFileHandle[1], I think this should be possible.  But it requires
> some work.  Is there already something out there?

John Miliken has one on Hackage:


I had a read-only version that I used for testing things a ways back:


There might still be some things in GHC.IO.Handle that assume FD
handles - I haven't tried it in a while.


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