| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 38 of 199 | 80% | 8 of 20 | 60% | 9 | 21 | 7 | 35 | 1 | 11 |
| checkLegalityBeforeTypeCoercion() | | 67% | | 57% | 6 | 8 | 5 | 15 | 0 | 1 |
| accept(ExpressionVisitor, Object) | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| customSignature() | | 88% | | 50% | 1 | 2 | 1 | 4 | 0 | 1 |
| refreshDerivedSignature(FunctionSignature) | | 80% | | 50% | 1 | 2 | 0 | 1 | 0 | 1 |
| computeStructType() | | 100% | | 100% | 0 | 2 | 0 | 7 | 0 | 1 |
| withChildren(List) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| static {...} | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| CreateNamedStruct(Expression[]) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| CreateNamedStruct(ScalarFunctionParams) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| lambda$customSignature$0(int) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| computePrecision(FunctionSignature) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |