### Question:
WorkItemDefinitionCacheRegistry implements WorkItemDefinitionRegistry { public void clear() { definitions.clear(); } WorkItemDefinitionCacheRegistry(); @Override Collection<WorkItemDefinition> items(); @Override WorkItemDefinition get(final String name); void register(final WorkItemDefinition def); WorkItemDefinition remove(final String name); boolean isEmpty(); void clear(); @PreDestroy void destroy();  }### Answer:
@Test public void testClear() { testTheClear(); }