### Question:
ContentPageMapperManager extends AbstractService implements IContentPageMapperManager, PageChangedObserver { @Override public void init() throws Exception { this.getCacheWrapper().initCache(this.getPageManager()); _logger.debug("{} ready.", this.getClass().getName()); }  @Override void init(); @Override void reloadContentPageMapper(); @Override String getPageCode(String contentId); @Override void updateFromPageChanged(PageChangedEvent event); void setPageManager(IPageManager pageManager); void setCacheWrapper(IContentMapperCacheWrapper cacheWrapper);  }### Answer:
@Test public void testInit() throws Throwable { pageMapperManager.init(); Mockito.verify(cacheWrapper, Mockito.times(1)).initCache(pageManager); }