| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 163 of 260 | 37% | 15 of 20 | 25% | 17 | 25 | 45 | 68 | 9 | 15 |
| CharArrayWriter(Reader) | | 0% | | 0% | 3 | 3 | 10 | 10 | 1 | 1 |
| CharArrayWriter(Reader, int) | | 0% | | 0% | 3 | 3 | 11 | 11 | 1 | 1 |
| write(Reader, int) | | 0% | | 0% | 3 | 3 | 9 | 9 | 1 | 1 |
| toCharArray() | | 0% | n/a | 1 | 1 | 3 | 3 | 1 | 1 | |
| setSize(int) | | 0% | | 0% | 2 | 2 | 4 | 4 | 1 | 1 |
| CharArrayWriter(int) | | 0% | n/a | 1 | 1 | 3 | 3 | 1 | 1 | |
| write(int) | | 76% | | 50% | 1 | 2 | 1 | 4 | 0 | 1 |
| reset() | | 0% | n/a | 1 | 1 | 2 | 2 | 1 | 1 | |
| getBuffer() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| size() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| ensureRoom(int) | | 100% | | 100% | 0 | 3 | 0 | 9 | 0 | 1 |
| write(String, int, int) | | 100% | n/a | 0 | 1 | 0 | 4 | 0 | 1 | |
| toString() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| reset(char[]) | | 100% | n/a | 0 | 1 | 0 | 3 | 0 | 1 | |
| CharArrayWriter(char[]) | | 100% | n/a | 0 | 1 | 0 | 3 | 0 | 1 |