### Question:
I18nManagerCacheWrapper extends AbstractGenericCacheWrapper<ApsProperties> implements II18nManagerCacheWrapper { @Override public void updateLabelGroup(String key, ApsProperties labels) { this.manage(key, labels, Action.UPDATE); }  @Override void initCache(II18nDAO i18nDAO); @Override Map<String, ApsProperties> getLabelGroups(); @Override ApsProperties getLabelGroup(String key); @Override void addLabelGroup(String key, ApsProperties labels); @Override void updateLabelGroup(String key, ApsProperties labels); @Override void removeLabelGroup(String key);  }### Answer:
@Test(expected = CacheItemNotFoundException.class) public void updateInvalidEntry() { cacheWrapper.updateLabelGroup("THIS_DO_NOT_EXISTS", I18nManagerTest.createLabel("si", "yes")); }