| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 18 of 252 | 92% | 4 of 24 | 83% | 4 | 32 | 1 | 57 | 1 | 20 |
| lastUpdate() | | 0% | | 0% | 2 | 2 | 1 | 1 | 1 | 1 |
| equals(Object) | | 91% | | 50% | 2 | 3 | 0 | 1 | 0 | 1 |
| undo(long) | | 100% | | 100% | 0 | 4 | 0 | 10 | 0 | 1 |
| retainAll(Collection) | | 100% | | 100% | 0 | 3 | 0 | 11 | 0 | 1 |
| addAll(Collection) | | 100% | | 100% | 0 | 2 | 0 | 5 | 0 | 1 |
| removeAll(Collection) | | 100% | | 100% | 0 | 2 | 0 | 5 | 0 | 1 |
| add(Object) | | 100% | | 100% | 0 | 2 | 0 | 4 | 0 | 1 |
| remove(Object) | | 100% | | 100% | 0 | 2 | 0 | 4 | 0 | 1 |
| UndoSet(Set) | | 100% | n/a | 0 | 1 | 0 | 4 | 0 | 1 | |
| clear() | | 100% | n/a | 0 | 1 | 0 | 3 | 0 | 1 | |
| iterator() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| lambda$clear$0(Object) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| hashCode() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| of(Set) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| contains(Object) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| toArray(Object[]) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| containsAll(Collection) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| size() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| isEmpty() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| toArray() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |