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From: ygrek <ygrek@autistici.org>
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Subject: Re: [Caml-list] testing private functions with oUnit

On Sun, 28 Sep 2014 19:06:38 -0400
Eric Cooper <ecc@cmu.edu> wrote:

> I'd like to write unit tests for functions not exported in a .mli
> file.  The only way I can see is to remove the .mli file while
> building the test, so the whole .ml file is visible.  Is there a better
> way, preferably integrated with ocamlmake + findlib?

One can also reverse that - write the tests in the .ml file and register
in the global mutable list of tests, then iterate over that list during test run.
One downside is that it relies on all modules being linked in.

--