| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 3 of 18 | 83% | 0 of 0 | n/a | 1 | 4 | 1 | 4 | 1 | 4 |
| RubyConverter.InvalidByteSequenceErrorMethods() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| readagain_bytes(ThreadContext, IRubyObject) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| incomplete_input_p(ThreadContext, IRubyObject) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| error_bytes(ThreadContext, IRubyObject) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |