### Question:
WorkItemDefinitionRegistries { public WorkItemDefinitionCacheRegistry put(final T item, final WorkItemDefinitionCacheRegistry registry) { registryMap.put(keyProvider.apply(item), registry); return registry; } WorkItemDefinitionRegistries(final Function<T, String> keyProvider,
                                        final Map<String, WorkItemDefinitionCacheRegistry> registryMap,
                                        final Consumer<WorkItemDefinitionCacheRegistry> registryDestroyer); boolean contains(final T item); Function<T, WorkItemDefinitionCacheRegistry> registries(); @SuppressWarnings("all") void clear(); WorkItemDefinitionCacheRegistry put(final T item,
                                               final WorkItemDefinitionCacheRegistry registry); WorkItemDefinitionCacheRegistry remove(final T item);  }### Answer:
@Test public void testPut() { tested.put("1", registry1); tested.put("2", registry2); assertTrue(tested.contains("1")); assertTrue(tested.contains("2")); assertFalse(tested.contains("3")); }