| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods | Missed | Classes |
| Total | 114 of 446 | 74% | 19 of 37 | 49% | 22 | 47 | 12 | 65 | 6 | 28 | 0 | 2 |
| RationalExpression | | 54% | | 48% | 13 | 27 | 8 | 30 | 2 | 13 | 0 | 1 |
| RationalFactory | | 89% | | 50% | 9 | 20 | 4 | 35 | 4 | 15 | 0 | 1 |