Re: [boost] [Boost.Test] access to boost::unit_test::framework::master_test_suite().{argc, argv} outside from BOOST_TEST

Subject: Re: [boost] [Boost.Test] access to boost::unit_test::framework::master_test_suite().{argc, argv} outside from BOOST_TEST
From: Olaf Peter (ope-devel_at_[hidden])
Date: 2017-04-01 06:19:55

> my test program uses boost.test datasets. I've wrote a filesystem 
> loader for the input and expected data. Now I run into the problem, 
> that boost::unit_test::framework::master_test_suite().{argc, argv} is 
> only setup inside the tests self. My loader isn't a test case ... I 
> can check it by using a simple mock, like
>
> struct app_mock
> {
>     app_mock();
>
>     int const             argc;
>     char** const         argv;
> };
>
> app_mock::app_mock()
> : argc(boost::unit_test::framework::master_test_suite().argc)
> , argv(boost::unit_test::framework::master_test_suite().argv)
> { }
>
> BOOST_AUTO_TEST_CASE( app_mocker )
> {
>     app_mock app;
>     std::cout << "Count = " << app.argc << '\n';
>     for(int i = 0; i != app.argc; i++)
>         std::cout << "Arg = " << app.argv[i] << '\n';
> }
BOOST_GLOBAL_FIXTURE(app_mock);

also important here.
>
>
> $ my_test -- my_args
>
> Count = 2
>
> path/to/exe
>
> my_args
>
>
> these works, but as mentioned:
>
> dataset_loader::dataset_loader(fs::path const& path)
> {
>     app_mock app;
>
>     std::cout << "ARGC = " << 
> boost::unit_test::framework::master_test_suite().argc << '\n';
>     read_files(path);
> }
>
> is always zero.
>
>
> How can I read the argc/argv values?
>
>
> Thanks,
>
> Olaf