| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 15 of 138 | 89% | 1 of 14 | 92% | 3 | 17 | 3 | 31 | 2 | 10 |
| resultForEmptyInput() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| MapAggregateFunction(String, Expression) | | 0% | n/a | 1 | 1 | 2 | 2 | 1 | 1 | |
| customSignature() | | 100% | n/a | 0 | 1 | 0 | 6 | 0 | 1 | |
| checkLegalityBeforeTypeCoercion() | | 100% | | 100% | 0 | 4 | 0 | 5 | 0 | 1 |
| checkMinMaxValueType() | | 100% | | 83% | 1 | 4 | 0 | 6 | 0 | 1 |
| getMapType() | | 100% | | 100% | 0 | 2 | 0 | 4 | 0 | 1 |
| MapAggregateFunction(String, boolean, Expression) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| MapAggregateFunction(AggregateFunctionParams) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| checkLegalityAfterRewrite() | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| argumentValueType(DataType) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |