[erlang-questions] parametrized modules and unit testing
Mon Feb 22 13:18:13 CET 2010
I've not used this module but it appears to give the behavior you want.
On Mon, Feb 22, 2010 at 7:52 PM, Vlad Dumitrescu <> wrote:
> On Mon, Feb 22, 2010 at 10:28, pietje <> wrote:
>> Suppose I have 2 modules, say ma and mb, and that module ma uses
>> (imports) module mb.
>> I'm trying to figure out in Erlang how to write unit tests for module
>> ma that do not depend on the particular
>> implementation of functions in module mb.
> One simple way is to use conditional compilation; in ma use
> -define(MB, mock_mb).
> -define(MB, mb).
> and make all calls to mb via ?MB. (Of course, you'll have to implement
> a mock_mb module).
> A more advanced way would be to have a central mock server where you
> can register a fun for each mocked function (in any module) and use
> error_handler:undefined_function to use these registered funs instead
> of the real ones. This is quite complex to implement, though.
> best regards,
> erlang-questions (at) erlang.org mailing list.
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