[erlang-questions] starting an app with an app.config file

[Andrew Gopienko]

>From my eunit tests

    SaslSpec = [{errlog_type, error}],
    case application:load({application,sasl,SaslSpec}) of
  {error,{already_loaded,_}} -> ok;
  ok ->
      ok = application:start(sasl),



2012/10/15 Roberto Ostinelli <roberto@REDACTED>

> To extend: I can ensure that app.config is used:
>
>
>    - when in development mode, by configuring it manually:
>
> erl -pa apps/*/ebin -pa deps/*/ebin \
>  -boot start_sasl \
> -config app \
>  -s myapp
>
>    - when it is packaged as a release (i believe this can be managed by
>    reltool)
>
> But how can I set myapp to use it in common tests?
>
>
>
> On Sun, Oct 14, 2012 at 3:56 PM, Roberto Ostinelli <roberto@REDACTED>wrote:
>
>> Dear list,
>>
>> I have an application set up with the standard structure:
>>
>> -- myproject
>>    rebar.config
>>    *app.config*
>>    |-- apps
>>        |-- myapp
>>            |--src
>>               ...
>>            |--test
>>               myapp_SUITE.erl
>>    |-- deps
>>        |-- dep1
>>        |-- dep2
>>    |-- ...
>>
>>
>> Please note app.config in there. Everything perfectly fine if I start
>> myapp.
>>
>> However, I'm trying to use Common Tests, and I start myapp in
>> myapp_SUITE.erl during init:
>>
>> init_per_suite(Config) ->
>> ok = application:start(myapp),
>>  Config.
>>
>> During startup, myapp tries to access config variables:
>>
>> {ok, Port} = application:get_env(myapp, port),
>>
>> This crashes in test, because application:get_env(myapp, port) returns
>> undefined. This basically means that myapp does not load app.config.
>>
>> How can I solve this?
>>
>> Thank you,
>>
>> r.
>>
>
>
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