Hi, I am new to Boost.Test so not sure if this is expected behaviour or not. Based on this minimal test: |----------------------------8←------------------------------------| #include <boost/test/unit_test.hpp> using boost::unit_test::test_suite; // most frequently you implement test cases as a free functions void my_test() { int i=2; BOOST_WARN( sizeof(int) == sizeof(short) ); BOOST_CHECK( i == 1 ); BOOST_REQUIRE( i > 5 ); BOOST_CHECK( i == 6 ); // will never reach this check } test_suite* init_unit_test_suite( int, char* [] ) { test_suite* test= BOOST_TEST_SUITE( " Test Suite!" ); // this example will pass cause we know ahead of time number of expected failures test->add( BOOST_TEST_CASE( & my_test ), 0 /* expected one error */ ); return test; } |----------------------------8←------------------------------------| Taken from this url: http://tinyurl.com/t54th (Click on BOOST_WARN). I expect to see this output (as mentioned at the above link): c:/development/code/practice/ test/mytest.cpp (14) : warning in test_main: condition sizeof(int) == sizeof(short) is not satisfied c:/development/code/practice/ test/mytest.cpp (15) : error in test_main: test i==1 failed c:/development/code/practice/ test/mytest.cpp (16) : fatal error in test_main: test i>5 failed But I see this output Running 1 test case... c:/development/code/practice/ test/mytest.cpp(15): error in " my_test ": check i == 1 failed c:/development/code/practice/ test/mytest.cpp (16): fatal error in " my_test ": critical check i > 5 failed *** 2 failures detected (2 failures expected) in test suite "Master Test Suite" It seems that the BOOST_WARN is not outputting a message. Is this expected behaviour? Also another minor point in the code I have named the BOOST_TEST_SUITE “Test Suite!” but in the output it is calling it “Master Test Suite”. Is this something I am not setting right? Thanks, Peter.