| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 10 of 110 | 91% | 2 of 8 | 75% | 2 | 13 | 2 | 25 | 0 | 9 |
| register(IRubyObject) | | 72% | | 50% | 1 | 2 | 1 | 4 | 0 | 1 |
| registeredIndex(IRubyObject) | | 67% | | 50% | 1 | 2 | 1 | 3 | 0 | 1 |
| writeLink(MarshalStream, IRubyObject) | | 100% | | 100% | 0 | 2 | 0 | 5 | 0 | 1 |
| isRegistered(IRubyObject) | | 100% | | 100% | 0 | 2 | 0 | 3 | 0 | 1 |
| MarshalCache() | | 100% | n/a | 0 | 1 | 0 | 3 | 0 | 1 | |
| registerSymbol(String) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| writeSymbolLink(MarshalStream, String) | | 100% | n/a | 0 | 1 | 0 | 3 | 0 | 1 | |
| registeredSymbolIndex(String) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| isSymbolRegistered(String) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |