| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 12 of 140 | 91% | 2 of 16 | 87% | 2 | 13 | 3 | 27 | 0 | 5 |
| customSignature() | | 85% | | 75% | 2 | 5 | 3 | 17 | 0 | 1 |
| checkLegalityBeforeTypeCoercion() | | 100% | | 100% | 0 | 3 | 0 | 5 | 0 | 1 |
| GreatestLeast(String, Expression, Expression[]) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| lambda$customSignature$0(Expression) | | 100% | | 100% | 0 | 3 | 0 | 1 | 0 | 1 |
| GreatestLeast(ScalarFunctionParams) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 |