| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 238 of 276 | 14% | 125 of 128 | 2% | 65 | 66 | 1 | 5 | 1 | 2 |
| subtractAssignmentOperationToCeylon(Tree.SubtractAssignOp) | | 14% | | 2% | 64 | 65 | 0 | 4 | 0 | 1 |
| subtractAssignmentOperationToCeylon_() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 |