| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 15 of 20 | 25% | 0 of 0 | n/a | 6 | 8 | 6 | 8 | 6 | 8 |
| getAny() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| contains(String) | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| isSingleton() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| restrictTo(Languages.LanguageSet) | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| merge(Languages.LanguageSet) | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| toString() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| {...} | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| isEmpty() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |