$ prove -v
t/test_holder......
1..6
ok 1 - use MyHolder;
ok 2 - name of cup holder should be cupboard
ok 3 - there should be four things in the cupboard
ok 4 - there should be five things in the cupboard
ok 5 - there should be four things in the cupboard
ok 6 - the cup should be red
ok
All tests successful.
Files=1, Tests=6,  3 wallclock secs ( 0.01 usr  0.00 sys +  2.52 cusr  0.03 csys =  2.56 CPU)
Result: PASS