### Question:
StackRegistry implements DynamicRegistry<T> { Stack<T> getStack() { return items; } StackRegistry(final KeyProvider<T> keyProvider,
                         final Stack<T> items); T peek(); T pop(); @Override void register(final T item); boolean remove(final T item); @Override boolean contains(final T item); @Override boolean isEmpty(); T getItemByKey(final String id); int indexOf(final T item);  }### Answer:
@Test public void testGetStack() { assertEquals(stack, tested.getStack()); }