| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 31 of 105 | 70% | 8 of 12 | 33% | 6 | 12 | 8 | 23 | 0 | 6 |
| customSignature() | | 65% | | 50% | 1 | 2 | 5 | 10 | 0 | 1 |
| checkLegalityBeforeTypeCoercion() | | 37% | | 25% | 4 | 5 | 3 | 6 | 0 | 1 |
| withChildren(List) | | 93% | | 50% | 1 | 2 | 0 | 2 | 0 | 1 |
| NullIf(Expression, Expression) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| accept(ExpressionVisitor, Object) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| NullIf(ScalarFunctionParams) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 |