| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 52 of 145 | 64% | 6 of 12 | 50% | 6 | 15 | 12 | 33 | 2 | 9 |
| open_type_mode_check(String, Symbol, Symbol, Boolean) | | 66% | | 50% | 4 | 7 | 6 | 15 | 0 | 1 |
| write_mode(ReadableString, ReadableString) | | 0% | n/a | 1 | 1 | 3 | 3 | 1 | 1 | |
| write(ReadableString) | | 0% | n/a | 1 | 1 | 3 | 3 | 1 | 1 | |
| write_mode_check_type(ReadableString, ReadableString, Posit, ReadableString) | | 100% | n/a | 0 | 1 | 0 | 3 | 0 | 1 | |
| write_type(ReadableString, ReadableString) | | 100% | n/a | 0 | 1 | 0 | 3 | 0 | 1 | |
| static {...} | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| FileWriteStream.Metaclass() | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| FileWriteStream.Metaclass(Class) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| outerClass() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |