| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 56 of 97 | 42% | 4 of 8 | 50% | 6 | 8 | 2 | 7 | 3 | 4 |
| extensionOrConstructionToCeylon(Object, Callable) | | 57% | | 50% | 3 | 5 | 1 | 6 | 0 | 1 |
| extensionOrConstructionToCeylon$update(Object) | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| extensionOrConstructionToCeylon(Object) | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| extensionOrConstructionToCeylon_() | | 0% | n/a | 1 | 1 | 0 | 0 | 1 | 1 |