| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 5 of 33 | 84% | 0 of 0 | n/a | 1 | 7 | 1 | 8 | 1 | 7 |
| fold(Function, Function) | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| right() | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| {...} | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| fold(Either.Match) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| left() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| isLeft() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| isRight() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |