| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 0 of 278 | 100% | 1 of 40 | 97% | 1 | 28 | 0 | 60 | 0 | 8 |
| preserveNull() | | 100% | | 93% | 1 | 9 | 0 | 18 | 0 | 1 |
| preserveNullShorts() | | 100% | | 100% | 0 | 3 | 0 | 7 | 0 | 1 |
| preserveNullBytes() | | 100% | | 100% | 0 | 3 | 0 | 7 | 0 | 1 |
| preserveNullInts() | | 100% | | 100% | 0 | 3 | 0 | 7 | 0 | 1 |
| preserveNullLongs() | | 100% | | 100% | 0 | 3 | 0 | 7 | 0 | 1 |
| preserveNullDoubles() | | 100% | | 100% | 0 | 3 | 0 | 6 | 0 | 1 |
| preserveNullFloats() | | 100% | | 100% | 0 | 3 | 0 | 6 | 0 | 1 |
| NullPixelMaskPreserver(TileBuffer, int, long, ICompressorControl) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 |