OSGUTX_TEST_E OSGUTX_TEST_E is a convenience macro, analogous to assert(), which will throw an osgUtx::TestErrorX if \em expr evaluates to false; this should be used to test for an error in a given test, as opposed to a failure in the tested code.
OSGUTX_TEST_F OSGUTX_TEST_F is a convenience macro, analogous to assert(), which will throw an osgUtx::TestFailureX if \em expr evaluates to false; this should be used to test for failure in a given test, as opposed to an actual error in the test owing to some other reason than the tested code being faulty.