| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 169 of 169 | 0% | 10 of 10 | 0% | 12 | 12 | 25 | 25 | 7 | 7 |
| read(CallSite, ByteBuffer) | | 0% | | 0% | 2 | 2 | 7 | 7 | 1 | 1 |
| initWriteSite() | | 0% | | 0% | 3 | 3 | 5 | 5 | 1 | 1 |
| write(CallSite, ByteBuffer) | | 0% | n/a | 1 | 1 | 3 | 3 | 1 | 1 | |
| initReadSite() | | 0% | | 0% | 2 | 2 | 3 | 3 | 1 | 1 |
| close() | | 0% | | 0% | 2 | 2 | 2 | 2 | 1 | 1 |
| IOChannel(IRubyObject) | | 0% | n/a | 1 | 1 | 4 | 4 | 1 | 1 | |
| isOpen() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 |