| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 7 of 10 | 30% | 0 of 0 | n/a | 2 | 3 | 2 | 3 | 2 | 3 |
| accept(ExpressionVisitor, Object) | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| toString() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| NullValue() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |