Mocked module will return empty function clause error

[edgurgel]

A mocked module will not throw the cause that failed to match.

Reproduction Steps

make shell

ok = meck:new(mymod, [non_strict]).
ok = meck:expect(mymod, test, [1], 2).
catch(mymod:test(2)).
{'EXIT',
    {function_clause,
        [{io_lib_pretty,cind_tag_tuple,7,
             [{file,"io_lib_pretty.erl"},{line,637}]},
         {io_lib_pretty,cind_element,7,
             [{file,"io_lib_pretty.erl"},{line,726}]},
         {io_lib_pretty,cind_list,7,
             [{file,"io_lib_pretty.erl"},{line,696}]},
         {io_lib_pretty,cind_element,7,
             [{file,"io_lib_pretty.erl"},{line,726}]},
         {io_lib_pretty,cind_list,7,
             [{file,"io_lib_pretty.erl"},{line,696}]},
         {io_lib_pretty,cind_element,7,
             [{file,"io_lib_pretty.erl"},{line,726}]},
         {io_lib_pretty,cind_list,7,
             [{file,"io_lib_pretty.erl"},{line,696}]},
         {io_lib_pretty,while_fail,3,
             [{file,"io_lib_pretty.erl"},{line,737}]}]}}

Expected behavior

I was expecting to get the function and arguments that didn't match. If the expectation is using an anonymous function, this error shows up:

11> catch(mymod:test(2)).
{'EXIT',
    {function_clause,
        [{erl_eval,'-inside-an-interpreted-fun-',[2],[]},
         {erl_eval,expr,3,[]}]}}

So at least the arguments are shown [2]

Observed behavior

It shows an empty function clause error giving no visibility of what failed to match.

Versions

Meck version: master Erlang version: OTP 18

[eproxus]

Turns out the fix was relatively simple 😄 Sorry for the long delay!