| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 38 of 38 | 0% | 2 of 2 | 0% | 3 | 3 | 3 | 3 | 2 | 2 |
| prefixDecrementOperationToCeylon(Tree.DecrementOp) | | 0% | | 0% | 2 | 2 | 2 | 2 | 1 | 1 |
| prefixDecrementOperationToCeylon_() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 |