Add %!endfunction block keyword to test.m test.m: Accept, but don't process, %!endfunction block keyword * structfun.m, fminunc.m, fsolve.m, sqp.m, unwrap.m, test.m: Close %!function declarations with %!endfunction. Until Bug #34497 (unable to clear command line functions from user workspace) is fixed, use Octave reserved namespace for test functions.