1entity test_bench is 2end test_bench; 3 4architecture only of test_bench is 5 signal sig : integer := 0; 6begin -- only 7 p: process 8 begin -- process p 9 sig <= 1; 10 wait for 1 fs; 11 assert sig = 1 report "TEST FAILED" severity FAILURE; 12 report "TEST PASSED" severity NOTE; 13 wait; 14 end process p; 15 16end only; 17