| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 77 of 174 | 55% | 13 of 22 | 40% | 18 | 25 | 17 | 39 | 7 | 14 |
| register(KeyPrefix) | | 35% | | 16% | 3 | 4 | 4 | 7 | 0 | 1 |
| KeyPrefix(String, KeyPrefix.Provenance, String) | | 54% | | 50% | 4 | 5 | 4 | 12 | 0 | 1 |
| tool(String, String) | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| requireNonEmptyName(String) | | 54% | | 50% | 2 | 3 | 1 | 3 | 0 | 1 |
| get(String) | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| hasTrailingDelimiter(String) | | 86% | | 50% | 2 | 3 | 1 | 5 | 0 | 1 |
| registered() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| prefix() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| provenance() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| description() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| toString() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| static {...} | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| file(String, String) | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| key(String) | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 |