| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 36 of 74 | 51 % | 3 of 4 | 25 % | 3 | 8 | 5 | 15 | 1 | 6 |
| add(String, String[]) | | 0 % | | 0 % | 2 | 2 | 4 | 4 | 1 | 1 |
| add(Column, Column[]) | | 61 % | | 50 % | 1 | 2 | 1 | 4 | 0 | 1 |
| GroupBy() | | 100 % | n/a | 0 | 1 | 0 | 3 | 0 | 1 | |
| add(Object) | | 100 % | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| iterator() | | 100 % | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| getGroups() | | 100 % | n/a | 0 | 1 | 0 | 1 | 0 | 1 |