| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 25 of 104 | 75% | 8 of 12 | 33% | 8 | 12 | 7 | 29 | 2 | 6 |
| setCompressionLevel(int) | | 0% | | 0% | 3 | 3 | 4 | 4 | 1 | 1 |
| static {...} | | 68% | | 50% | 1 | 2 | 1 | 5 | 0 | 1 |
| writePng(BufferedImage, ImageOutputStream) | | 0% | n/a | 1 | 1 | 2 | 2 | 1 | 1 | |
| writePng(BufferedImage, ImageOutputStream, int) | | 100% | | 50% | 1 | 2 | 0 | 11 | 0 | 1 |
| finish() | | 100% | | 50% | 2 | 3 | 0 | 5 | 0 | 1 |
| PngSurface() | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 |