| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 6 of 34 | 82% | 1 of 2 | 50% | 1 | 4 | 1 | 7 | 0 | 3 |
| NegativeExpression(ModelFactoryIF, Expression) | | 70% | | 50% | 1 | 2 | 1 | 5 | 0 | 1 |
| toString() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| atomString() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |