how can i run my unittests for a dynamic library? some weird conflict is reported between main functions, my project doesnt contain any main function.

i really love D, but problems like this make me wanna switch :/

using:
dub test --arch=x86

lucy ~master: building configuration "__test__library__"...
../../tmp/dub_test_root-0ce1acbf-ecb9-4abf-8199-e7a23bd783dc.d(21,12): Error: function D main conflicts with static import dub_test_root.main at ../../tmp/dub_test_root-0ce1acbf-ecb9-4abf-8199-e7a23bd783dc.d(11,15)
dmd failed with exit code 1.

dub.json
{
	"name": "lucy",
	"description": "A minimal D application.",
	"copyright": "Copyright © 2015, dom",
	"authors": ["dom"],
	"targetType": "dynamicLibrary",
	"dflags": ["-fPIC"],
	"dependencies": {
		"msgpack-d": "~>1.0.0-beta.2",
		"poodinis": "~>6.3.0"
	}
}

On Wednesday, 13 July 2016 at 19:41:53 UTC, dom wrote:
> how can i run my unittests for a dynamic library? some weird conflict is reported between main functions, my project doesnt contain any main function.
>
> [...]

try to put this before the main of your application:

  "version(unittest){} else"

it looks like the default unittest config implies the switch "-main".

On Thursday, 14 July 2016 at 00:33:50 UTC, ethgeh wrote:
> On Wednesday, 13 July 2016 at 19:41:53 UTC, dom wrote:
>> how can i run my unittests for a dynamic library? some weird conflict is reported between main functions, my project doesnt contain any main function.
>>
>> [...]
>
> try to put this before the main of your application:
>
>   "version(unittest){} else"
>
> it looks like the default unittest config implies the switch "-main".

as i said my project doesnt contain a main() function

On Thursday, 14 July 2016 at 10:13:38 UTC, dom wrote:
> On Thursday, 14 July 2016 at 00:33:50 UTC, ethgeh wrote:
>> On Wednesday, 13 July 2016 at 19:41:53 UTC, dom wrote:
>>> how can i run my unittests for a dynamic library? some weird conflict is reported between main functions, my project doesnt contain any main function.
>>>
>>> [...]
>>
>> try to put this before the main of your application:
>>
>>   "version(unittest){} else"
>>
>> it looks like the default unittest config implies the switch "-main".
>
> as i said my project doesnt contain a main() function

Are you sure? The error message states exactly this. Could you reduce the project to a single file and upload it somewhere (e. g. github).

On Saturday, 16 July 2016 at 20:22:15 UTC, Seb wrote:
> On Thursday, 14 July 2016 at 10:13:38 UTC, dom wrote:
>> On Thursday, 14 July 2016 at 00:33:50 UTC, ethgeh wrote:
>>> On Wednesday, 13 July 2016 at 19:41:53 UTC, dom wrote:
>>>> how can i run my unittests for a dynamic library? some weird conflict is reported between main functions, my project doesnt contain any main function.
>>>>
>>>> [...]
>>>
>>> try to put this before the main of your application:
>>>
>>>   "version(unittest){} else"
>>>
>>> it looks like the default unittest config implies the switch "-main".
>>
>> as i said my project doesnt contain a main() function
>
> Are you sure? The error message states exactly this. Could you reduce the project to a single file and upload it somewhere (e. g. github).

I am getting the same error for my projects. I tried prefacing my main functions with the version(unittest) {} else snippet (which we really shouldn't have to do!!!) but anyway that didn't change the behavior of dub test at all.

On Saturday, 8 December 2018 at 19:25:41 UTC, Andrew Pennebaker wrote:
> On Saturday, 16 July 2016 at 20:22:15 UTC, Seb wrote:
>> On Thursday, 14 July 2016 at 10:13:38 UTC, dom wrote:
>>> On Thursday, 14 July 2016 at 00:33:50 UTC, ethgeh wrote:
>>>> On Wednesday, 13 July 2016 at 19:41:53 UTC, dom wrote:
>>>>> how can i run my unittests for a dynamic library? some weird conflict is reported between main functions, my project doesnt contain any main function.
>>>>>
>>>>> [...]
>>>>
>>>> try to put this before the main of your application:
>>>>
>>>>   "version(unittest){} else"
>>>>
>>>> it looks like the default unittest config implies the switch "-main".
>>>
>>> as i said my project doesnt contain a main() function
>>
>> Are you sure? The error message states exactly this. Could you reduce the project to a single file and upload it somewhere (e. g. github).
>
> I am getting the same error for my projects. I tried prefacing my main functions with the version(unittest) {} else snippet (which we really shouldn't have to do!!!) but anyway that didn't change the behavior of dub test at all.

It is a quite old thread but the issue is still relevant. In the first post, there is a dependency to poodinis which defines in the test package a void main function.

Maybe main functions in dependencies causing this issue. Which dependencies do you have?

Kind regards
Andre