Re: [Boost-users] [boost.test] parsing runtime arguments

Subject: Re: [Boost-users] [boost.test] parsing runtime arguments
From: Raffi Enficiaud (raffi.enficiaud_at_[hidden])
Date: 2018-08-24 13:50:05

On 12.08.18 20:17, Olaf Peter via Boost-users wrote:
> Hi,
> how get an 'user' API for the boost.test like this:
> 
> testsuite_xyz -- --help
> 
> or even
> 
> testsuite_xyz -- --save-path=/foo
> 
> to get the user aspects. I know I can get the args by
> 
>  Â Â Â  int argc{ framework::master_test_suite().argc };
>  Â Â Â  char** argv{ framework::master_test_suite().argv };
> 
> Further, at test/include/boost/test/utils/runtime/cla/parser.hpp are 
> some utils used by boost.test self. Anyway, the problem rises to get the 
> behaviour desribed above, simply using a global fixture with:
> 
> fixture::fixture()
> {
>  Â Â Â  int argc{ utf::framework::master_test_suite().argc };
>  Â Â Â  char** argv{ utf::framework::master_test_suite().argv };
> 
>  Â Â Â  Â Â  for (int i = 0; i != argc; ++i) {
>  Â Â Â  Â Â Â  Â Â  std::cerr << "test_observer_fixture: " << argv[i] << "\n";
>  Â Â Â  Â Â  }
> }
> 
> doesn't give the expected results - all the BOOST_AUTO_TEST_SUITE test 
> cases are called even they depend on this arguments.
> 
> Thanks,
> Olaf

What about using the new API for fixtures and accessing argc/argv from 
the "setup" member function?

https://www.boost.org/doc/libs/1_68_0/libs/test/doc/html/boost_test/tests_organization/fixtures/models.html

If you are constructing a global fixture, the class is instanciated 
before the framework starts, hence the observed behaviour.

Best,
Raffi