| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 58 of 129 | 55% | 14 of 30 | 53% | 14 | 17 | 1 | 5 | 1 | 2 |
| complementOperationToCeylon(Tree.ComplementOp) | | 56% | | 53% | 13 | 16 | 0 | 4 | 0 | 1 |
| complementOperationToCeylon_() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 |