| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 165 of 165 | 0% | 8 of 8 | 0% | 9 | 9 | 38 | 38 | 5 | 5 |
| writeVariant(Variant) | | 0% | n/a | 1 | 1 | 19 | 19 | 1 | 1 | |
| write(ExtensionHolder) | | 0% | | 0% | 3 | 3 | 8 | 8 | 1 | 1 |
| writeExtension(Object) | | 0% | | 0% | 3 | 3 | 7 | 7 | 1 | 1 |
| VariantWriterImpl(VariantVector) | | 0% | n/a | 1 | 1 | 2 | 2 | 1 | 1 | |
| writeExtension(Object, ArrowType) | | 0% | n/a | 1 | 1 | 2 | 2 | 1 | 1 |