This doesn't make a lot of sense to me and seems like new behavior in .35: Running 1 test case... commands: commands.cpp:5: void test_construct(): Assertion `false' failed. *** No errors detected PASS: commands ================== All 1 tests passed ================== Previously, the use of BOOST_ASSERT(xxx) was the method of testing. Is that different now? Previously, I didn't return anything from the function, I just assert. Is that different now? Boost.Test isn't listed in the updated libraries for .35 but this is definitely not the behavior I was getting in .34 Code: #include <boost/test/unit_test.hpp> void test_construct() { BOOST_ASSERT(false); } using namespace boost::unit_test; test_suite * init_unit_test_suite(int,char**) { test_suite * test = BOOST_TEST_SUITE("wumpus commands"); test->add(BOOST_TEST_CASE(&test_construct)); return test; }