| OLD | NEW |
| 1 | 1 |
| 2 PASS Add 'tv, screen' to 'screen' | 2 PASS Add 'tv, screen' to 'screen' |
| 3 PASS Add 'tv' to 'screen' | 3 PASS Add 'tv' to 'screen' |
| 4 PASS Add 'tv' to 'screen, tv' | 4 PASS Add 'tv' to 'screen, tv' |
| 5 PASS Add 'screen' to 'screen, tv' | 5 PASS Add 'screen' to 'screen, tv' |
| 6 PASS Add ' ' to 'screen, tv' | 6 PASS Add ' ' to 'screen, tv' |
| 7 PASS Add '' to 'screen, tv' | 7 PASS Add '' to 'screen, tv' |
| 8 PASS Add ',' to 'screen, tv' | 8 PASS Add ',' to 'screen, tv' |
| 9 PASS Add '&invalid' to 'screen, tv' | 9 PASS Add '&invalid' to 'screen, tv' |
| 10 PASS Add 'not all' to 'screen, tv' | 10 PASS Add 'not all' to 'screen, tv' |
| 11 PASS Add '#?:/' to 'screen, tv' | 11 PASS Add '#?:/' to 'screen, tv' |
| 12 PASS Add without argument |
| 12 PASS Remove '&invalid' from 'screen, tv, not all' | 13 PASS Remove '&invalid' from 'screen, tv, not all' |
| 13 PASS Remove 'not all' from 'screen, tv' | 14 PASS Remove 'not all' from 'screen, tv' |
| 14 PASS Remove 'cow' from 'screen, tv' | 15 PASS Remove 'cow' from 'screen, tv' |
| 15 PASS Remove 'not all' from 'screen, tv, not all' | 16 PASS Remove 'not all' from 'screen, tv, not all' |
| 16 PASS Remove 'tv' from 'screen, tv' | 17 PASS Remove 'tv' from 'screen, tv' |
| 17 PASS Remove 'not all' from 'not all, not all, tv, not all' | 18 PASS Remove 'not all' from 'not all, not all, tv, not all' |
| 18 PASS Remove 'tv' from 'not all, not all, tv, not all' | 19 PASS Remove 'tv' from 'not all, not all, tv, not all' |
| 19 PASS Remove 'tv, print' from 'screen, tv, screen' | 20 PASS Remove 'tv, print' from 'screen, tv, screen' |
| 20 PASS Remove '#?:/' from 'screen, tv, not all' | 21 PASS Remove '#?:/' from 'screen, tv, not all' |
| 22 PASS Remove without argument |
| 21 | 23 |
| OLD | NEW |