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Roberto Ostinelli  
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 More options Jul 22 2012, 10:15 pm
From: Roberto Ostinelli <robe...@widetag.com>
Date: Sun, 22 Jul 2012 19:15:42 -0700
Local: Sun, Jul 22 2012 10:15 pm
Subject: [erlang-questions] meck
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dear all,

i'm trying to use the meck framework (https://github.com/eproxus/meck) and
i can't seem to find a way to test that a function gets called with the
appropriate values.

for instance:

%%%%%%%%%%%%%%%%%%%%

-module(example).
-compile(export_all).

get_config() ->
mocked:myfun("test.config").

-ifdef(TEST).
-include_lib("eunit/include/eunit.hrl").

get_config_test_() ->
meck:new(mocked),
meck:expect(mocked, myfun, fun(Filename) -> ok end),
?_assertEqual(ok, get_config()),
?_assert(meck:validate(mocked)).
-endif.

%%%%%%%%%%%%%%%%%%%%

i'd like to test that mocked:myfun/1 gets called with "test.config" as
parameter.

is this possible?

r.

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Slava Yurin  
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 More options Jul 23 2012, 12:37 am
From: Slava Yurin <Yuri...@yandex.ru>
Date: Mon, 23 Jul 2012 11:37:05 +0700
Local: Mon, Jul 23 2012 12:37 am
Subject: Re: [erlang-questions] meck
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From meck readme.md:
 
my_test() ->
    meck:new(my_library_module),
    meck:expect(my_library_module, fib, fun(8) -> 21 end),
    ?assertEqual(21, code_under_test:run(fib, 8)), % Uses my_library_module
    ?assert(meck:validate(my_library_module)),
    meck:unload(my_library_module).
 
23.07.2012, 09:15, "Roberto Ostinelli" <roberto@widetag.com>:
dear all,
i'm trying to use the meck framework (https://github.com/eproxus/meck) and i can't seem to find a way to test that a function gets called with the appropriate values.
for instance:
%%%%%%%%%%%%%%%%%%%%
-module(example).
-compile(export_all).
get_config() ->
mocked:myfun("test.config").
-ifdef(TEST).
-include_lib("eunit/include/eunit.hrl").
get_config_test_() ->
meck:new(mocked),
meck:expect(mocked, myfun, fun(Filename) -> ok end),
?_assertEqual(ok, get_config()),
?_assert(meck:validate(mocked)).
-endif.
%%%%%%%%%%%%%%%%%%%%
i'd like to test that mocked:myfun/1 gets called with "test.config" as parameter.
is this possible?
r.

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Motiejus Jakštys  
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 More options Jul 23 2012, 4:07 am
From: Motiejus Jakštys <desired....@gmail.com>
Date: Mon, 23 Jul 2012 10:07:59 +0200
Local: Mon, Jul 23 2012 4:07 am
Subject: Re: [erlang-questions] meck
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Hi,
you are mixing eunit generators with simple test cases. Did you mean this?

get_config_test() ->
  meck:new(mocked),
  meck:expect(mocked, myfun, fun(Filename) -> ok end),
  ?assertEqual(ok, get_config()),
  ?assert(meck:called(mocked, myfun, ["test.config"])),
  meck:unload(mocked).

Normally, you should split meck:new and meck:unload to separate
setup/cleanup functions. Because if a test fails and the module is not
cleaned, it might unexpectedly do ill for your other test cases.

--
Motiejus Jakštys
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Roberto Ostinelli  
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 More options Jul 25 2012, 1:30 am
From: Roberto Ostinelli <robe...@widetag.com>
Date: Tue, 24 Jul 2012 22:30:55 -0700
Local: Wed, Jul 25 2012 1:30 am
Subject: Re: [erlang-questions] meck
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> Hi,
> you are mixing eunit generators with simple test cases. Did you mean this?

> get_config_test() ->
>   meck:new(mocked),
>   meck:expect(mocked, myfun, fun(Filename) -> ok end),
>   ?assertEqual(ok, get_config()),
>   ?assert(meck:called(mocked, myfun, ["test.config"])),
>   meck:unload(mocked).

> Normally, you should split meck:new and meck:unload to separate
> setup/cleanup functions. Because if a test fails and the module is not
> cleaned, it might unexpectedly do ill for your other test cases.

can't i use this in generators?

the reason why i didn't include unload is because of this:
https://github.com/eproxus/meck/issues/72

r.

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Discussion subject changed to "Fwd: meck" by Motiejus Jakštys
Motiejus Jakštys  
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 More options Jul 27 2012, 3:32 am
From: Motiejus Jakštys <desired....@gmail.com>
Date: Fri, 27 Jul 2012 10:32:18 +0300
Local: Fri, Jul 27 2012 3:32 am
Subject: [erlang-questions] Fwd: meck
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Forwarding to list.

---------- Forwarded message ----------
From: Motiejus Jakštys <desired....@gmail.com>
Date: Wed, Jul 25, 2012 at 9:31 AM
Subject: Re: [erlang-questions] meck
To: Roberto Ostinelli <robe...@widetag.com>

On Wed, Jul 25, 2012 at 7:30 AM, Roberto Ostinelli <robe...@widetag.com> wrote:

> can't i use this in generators?

You can, but another way. Generator must return a set of test cases.
For instance:

arith_test_() ->
    [
        ?_assertEqual(4, 2*2),
        ?_assertEqual(0, 1*0)
    ].

From eunit manual[1]:
A function with a name ending in ..._test_() (note the final
underscore) is recognized by EUnit as a test generator function. Test
generators return a representation of a set of tests to be executed by
EUnit.

Stick with the simple test case instead (which ends with test()).

> the reason why i didn't include unload is because of this:
> https://github.com/eproxus/meck/issues/72

As said, try simple test case first.

[1]: http://www.erlang.org/doc/apps/eunit/chapter.html#EUnit_macros

--
Motiejus Jakštys

--
Motiejus Jakštys
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