| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 1 of 169 | 99% | 1 of 26 | 96% | 1 | 18 | 1 | 39 | 0 | 5 |
| build(CharSequence) | | 99% | | 94% | 1 | 10 | 1 | 25 | 0 | 1 |
| runChallenge(TextNavigator, int) | | 100% | | 100% | 0 | 5 | 0 | 6 | 0 | 1 |
| ChallengeCharSet() | | 100% | n/a | 0 | 1 | 0 | 4 | 0 | 1 | |
| addRange(char, char) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| addChar(char) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 |