| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 42 of 139 | 69% | 1 of 6 | 83% | 5 | 15 | 8 | 27 | 4 | 12 |
| Histogram(boolean, Expression, Expression) | | 0% | n/a | 1 | 1 | 2 | 2 | 1 | 1 | |
| Histogram(boolean, Expression) | | 0% | n/a | 1 | 1 | 2 | 2 | 1 | 1 | |
| Histogram(boolean, List) | | 0% | n/a | 1 | 1 | 2 | 2 | 1 | 1 | |
| checkLegalityBeforeTypeCoercion() | | 85% | | 83% | 1 | 4 | 1 | 6 | 0 | 1 |
| resultForEmptyInput() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| static {...} | | 100% | n/a | 0 | 1 | 0 | 5 | 0 | 1 | |
| Histogram(Expression, Expression) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| Histogram(Expression) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| withDistinctAndChildren(boolean, List) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| accept(ExpressionVisitor, Object) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| Histogram(AggregateFunctionParams) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| getSignatures() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |