| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 57 of 199 | 71% | 12 of 32 | 62% | 11 | 25 | 17 | 49 | 3 | 9 |
| prefix(String, List) | | 0% | | 0% | 5 | 5 | 11 | 11 | 1 | 1 |
| append(StringBuilder) | | 0% | n/a | 1 | 1 | 2 | 2 | 1 | 1 | |
| length() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| prefix(String, String[]) | | 97% | | 87% | 1 | 5 | 1 | 10 | 0 | 1 |
| join(String, String[]) | | 97% | | 87% | 1 | 5 | 1 | 9 | 0 | 1 |
| join(String, List) | | 97% | | 75% | 2 | 5 | 1 | 10 | 0 | 1 |
| StringBuilder() | | 100% | n/a | 0 | 1 | 0 | 3 | 0 | 1 | |
| append(String) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| toString() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |