| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 107 of 107 | 0% | 14 of 14 | 0% | 13 | 13 | 29 | 29 | 6 | 6 |
| read(ByteBuffer) | | 0% | | 0% | 4 | 4 | 8 | 8 | 1 | 1 |
| write(ByteBuffer) | | 0% | | 0% | 3 | 3 | 6 | 6 | 1 | 1 |
| close() | | 0% | | 0% | 2 | 2 | 5 | 5 | 1 | 1 |
| FileDescriptorByteChannel(Ruby, int) | | 0% | n/a | 1 | 1 | 5 | 5 | 1 | 1 | |
| libc(Ruby) | | 0% | | 0% | 2 | 2 | 4 | 4 | 1 | 1 |
| isOpen() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 |