| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 75 of 83 | 10% | 8 of 8 | 0% | 6 | 7 | 21 | 24 | 2 | 3 |
| native_read(ThreadContext, IRubyObject, IRubyObject, IRubyObject, IRubyObject) | | 0% | | 0% | 5 | 5 | 20 | 20 | 1 | 1 |
| IOModule() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| createIOModule(Ruby, RubyModule) | | 100% | n/a | 0 | 1 | 0 | 3 | 0 | 1 |