Boost test : how to debug tested code?

I am using Boost test with :

#define BOOST_TEST_DYN_LINK
#define BOOST_TEST_MODULE MyTest
#include <boost/test/unit_test.hpp>

Tests executions are fine : I can run them, and I can debug them.

But I can't succeed to debug the code tested by Boost Test. I can't enter my function. Note I use the debugger through Eclipse.