6.9. TODO with Harness

$ perl t8_calc.t 
1..3
ok 1 - 1+1
ok 2 - 2+2
not ok 3 - 2+2+2 # TODO Once we learn how to add 3 values
#     Failed (TODO) test (t8_calc.t at line 10)
#          got: '4'
#     expected: '6'

$ perl ../harness.pl t8_calc.t 
t8_calc....ok                                                                
All tests successful.
Files=1, Tests=3,  0 wallclock secs ( 0.04 cusr +  0.01 csys =  0.05 CPU)