| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 23 of 35 | 34% | 2 of 2 | 0% | 5 | 7 | 7 | 10 | 4 | 6 |
| getOptArg(int) | | 0% | | 0% | 2 | 2 | 3 | 3 | 1 | 1 |
| accept(Visitor, Object) | | 0% | n/a | 1 | 1 | 2 | 2 | 1 | 1 | |
| getType() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| getOperator() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| CustomFunctionOperation(Expression, String, Object[]) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| getArg(int) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |