| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 46 of 196 | 76% | 11 of 32 | 65% | 9 | 27 | 9 | 26 | 1 | 11 |
| toDigest() | | 0% | | 0% | 4 | 4 | 7 | 7 | 1 | 1 |
| equals(Object) | | 89% | | 66% | 4 | 7 | 2 | 6 | 0 | 1 |
| toSql() | | 100% | | 100% | 0 | 3 | 0 | 1 | 0 | 1 |
| toString() | | 100% | | 100% | 0 | 3 | 0 | 1 | 0 | 1 |
| hashCode() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| matches(OrderKey) | | 100% | | 83% | 1 | 4 | 0 | 1 | 0 | 1 |
| OrderKey(Expression, boolean, boolean) | | 100% | n/a | 0 | 1 | 0 | 5 | 0 | 1 | |
| withExpression(Expression) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| getExpr() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| isAsc() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| isNullFirst() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |