| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 153 of 153 | 0% | 12 of 12 | 0% | 12 | 12 | 34 | 34 | 6 | 6 |
| union() | | 0% | | 0% | 5 | 5 | 14 | 14 | 1 | 1 |
| add(Geometry) | | 0% | n/a | 1 | 1 | 4 | 4 | 1 | 1 | |
| loadIndex(Collection) | | 0% | | 0% | 2 | 2 | 5 | 5 | 1 | 1 |
| SparsePolygonUnion(Collection) | | 0% | | 0% | 2 | 2 | 6 | 6 | 1 | 1 |
| union(Geometry) | | 0% | n/a | 1 | 1 | 3 | 3 | 1 | 1 | |
| union(Collection) | | 0% | n/a | 1 | 1 | 2 | 2 | 1 | 1 |