Calling a boost unit_test test within code - c++

Question

I'm trying to call a boost::unit_test from code.
In a number of files I've got
BOOST_AUTO_TEST_SUITE(DataAccessSuite)
BOOST_AUTO_TEST_CASE(DateAppender)
{
...
}
BOOST_AUTO_TEST_SUITE_END()
For my dialog box I have a visitor to gather the IDs and names of all the test cases/suites
namespace {
unit_test::test_suite* init_unit_test_suite(int argc, char** argv) {
return 0;
}
using namespace std::string_literals;
struct test_visitor : unit_test::test_tree_visitor {
test_visitor(std::vector<std::tuple<std::string, unit_test::test_unit_id>>& tests) : m_tests(tests) {}
void visit(unit_test::test_case const& test) {
m_tests.emplace_back(std::make_tuple(suite + "/"s + static_cast<std::string>(test.p_name),test.p_id));
}
virtual bool test_suite_start(unit_test::test_suite const& ts) {
suite = ts.p_name;
return true;
}
virtual void test_suite_finish(unit_test::test_suite const&) {
suite = std::string();
}
std::string suite;
std::vector<std::tuple<std::string, unit_test::test_unit_id>>& m_tests;
};
}
TestDialogImpl::TestDialogImpl(wxWindow* parent) : TestDialog(parent)
{
// Make a list of test cases to show in my dialog box
unit_test::traverse_test_tree(unit_test::framework::master_test_suite(), test_visitor(m_tests), true);
for (auto& test : m_tests) {
m_listBox2->Append(wxString(std::get<0>(test)));
}
}
And here's my call to the test case
void TestDialogImpl::OnClick_RunButton(wxCommandEvent & event)
{
auto selection = m_listBox2->GetStringSelection();
char* argv[] = { "OptionModeller.exe","--run_test=DataAccessSuite/DateAppender" };
unit_test::framework::init(init_unit_test_suite, 2, argv);
auto finder = std::find_if(std::begin(m_tests), std::end(m_tests), [&selection](auto& v) { return std::get<0>(v) == selection; });
// This fails with setup_error(), but I don't know why?
unit_test::framework::run(std::get<1>(*finder), true);
}
Is there a way I could call the test and utilize the framework. I know I could alternatively call the free functions but that defeats the point of using BOOST_TEST
UPDATE
From #A Fagrell's idea
I changed the call of the test executor to
void TestDialogImpl::OnClick_RunButton(wxCommandEvent & event)
{
wxString selection = "--run_test=" + m_listBox2->GetStringSelection();
const char* option = static_cast<const char*>(selection);
char* argv[] = { "OptionModeller.exe" , (char*)(option)};
unit_test::unit_test_main(&init_unit_test_suite, 2, argv);
}
Seems to work ok, but does seem the wrong way of doing things. I would have expected to be able to call a test explicitly by id, rather than by fudging the command line args.
Is there a better way?