}

  // TODO(cpovirk): top-level class?
  static class ExecutorSpy implements Executor {

    Executor delegate;
    boolean wasExecuted;

    public ExecutorSpy(Executor delegate) {
      this.delegate = delegate;
    }

    @Override
    public void execute(Runnable command) {
      delegate.execute(command);
      wasExecuted = true;
    }
  }

    @Override
    Set<E> createElementSet() {
      Set<E> delegate = countMap.keySet();
      return new ForwardingSet<E>() {
        @Override
        protected Set<E> delegate() {
          return delegate;
        }

        @Override
        public boolean remove(Object object) {
          try {
            return delegate.remove(object);
          } catch (NullPointerException | ClassCastException e) {

  /** Proxy to throw a {@link RuntimeException} out of the {@link #get()} method. */
  public static class BadFuture extends SimpleForwardingListenableFuture<Integer> {
    protected BadFuture(ListenableFuture<Integer> delegate) {
      super(delegate);
    }

    @Override
    public Integer get() {
      throw new BadFutureRuntimeException();
    }
  }

  /** Proxy to throw a {@link RuntimeException} out of the {@link #get()} method. */
  public static class BadFuture extends SimpleForwardingListenableFuture<Integer> {
    protected BadFuture(ListenableFuture<Integer> delegate) {
      super(delegate);
    }

    @Override
    public Integer get() {
      throw new BadFutureRuntimeException();
    }
  }

        UniAddress ua = new UniAddress(nbtMock);
        // Act
        String next = ua.nextCalledName();
        // Assert
        assertEquals("NEXT", next, "nextCalledName should delegate to NbtAddress when called");
    }

    @Test
    void nextCalledNameWithInetAddressReturnsSMBSERVERFirstIfNotDefault() {
        // Arrange
        InetAddress addr = mock(InetAddress.class);

   */
  int internalArrayEnd() {
    throw new UnsupportedOperationException();
  }

  static <E> ImmutableCollection<E> unsafeDelegate(Collection<E> delegate) {
    return new ForwardingImmutableCollection<E>(delegate);
  }

  boolean isPartialView() {
    return false;
  }

  /** GWT emulated version of {@link ImmutableCollection.Builder}. */
  public abstract static class Builder<E> {

        handle = new SmbTreeHandleImpl(resourceLoc, treeConnection);
    }

    @Test
    @DisplayName("Constructor acquires tree connection; getConfig/isConnected delegate")
    void constructorAndSimpleDelegations() {
        // Ensures constructor acquires tree connection and simple delegate methods forward correctly
        // Verify constructor invoked acquire once
        verify(treeConnection, times(1)).acquire();

        // getConfig delegates

   * delegate to this method. Subclasses can override this method to provide custom equality.
   */
  @Override
  public int hashCode() {
    return super.hashCode();
  }

  /**
   * By default delegates to {@link Object#toString}. The dynamic proxies' {@code toString()} will
   * delegate to this method. Subclasses can override this method to provide custom string

        cifsContextWrapper = new CIFSContextWrapper(mockDelegate);
    }

    @Test
    void testConstructor() {
        // Verify that the delegate is correctly set
        assertNotNull(cifsContextWrapper);
    }

    @Test
    void testGetSmbResource() throws CIFSException, MalformedURLException {
        // Test get(String url) method

        // Verify filter was called for each element
        verify(mockFilter, times(2)).accept(any(SmbResource.class));
    }

    /**
     * Test iterator with empty delegate.
     */
    @Test
    void testEmptyIterator() {
        // Given
        when(mockDelegate.hasNext()).thenReturn(false);