| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 227 of 325 | 30% | 119 of 140 | 15% | 72 | 74 | 1 | 7 | 3 | 4 |
| orAssignmentOperationToCeylon(Tree.OrAssignOp, Callable) | | 33% | | 15% | 69 | 71 | 0 | 6 | 0 | 1 |
| orAssignmentOperationToCeylon$update(Tree.OrAssignOp) | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| orAssignmentOperationToCeylon(Tree.OrAssignOp) | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| orAssignmentOperationToCeylon_() | | 0% | n/a | 1 | 1 | 0 | 0 | 1 | 1 |