| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 8 of 115 | 93% | 2 of 10 | 80% | 2 | 12 | 1 | 23 | 0 | 7 |
| checkLegalityBeforeTypeCoercion() | | 84% | | 87% | 1 | 5 | 1 | 12 | 0 | 1 |
| withChildren(List) | | 93% | | 50% | 1 | 2 | 0 | 2 | 0 | 1 |
| static {...} | | 100% | n/a | 0 | 1 | 0 | 3 | 0 | 1 | |
| ArrayUnion(Expression, Expression, Expression[]) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| accept(ExpressionVisitor, Object) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| ArrayUnion(ScalarFunctionParams) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| getSignatures() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |