switch (edgesConnecting.size()) {
          case 0:
            assertThat(network.edgeConnectingOrNull(node, otherNode)).isNull();
            assertThat(network.edgeConnecting(node, otherNode).isPresent()).isFalse();
            assertThat(network.hasEdgeConnecting(node, otherNode)).isFalse();
            break;
          case 1:
            E edge = edgesConnecting.iterator().next();

    return from(Iterables.limit(getDelegate(), maxSize));
  }

  /**
   * Determines whether this fluent iterable is empty.
   *
   * <p><b>{@code Stream} equivalent:</b> {@code !stream.findAny().isPresent()}.
   */
  public final boolean isEmpty() {
    return !getDelegate().iterator().hasNext();
  }

  /**
   * Returns an {@code ImmutableList} containing all of the elements from this fluent iterable in

   * iterator whether it has any elements <i>remaining</i> (which one does using {@link
   * Iterator#hasNext}).
   *
   * <p><b>{@code Stream} equivalent:</b> {@code !stream.findAny().isPresent()}
   *
   * @return {@code true} if the iterable contains no elements
   */
  public static boolean isEmpty(Iterable<?> iterable) {
    if (iterable instanceof Collection) {

    return from(Iterables.limit(getDelegate(), maxSize));
  }

  /**
   * Determines whether this fluent iterable is empty.
   *
   * <p><b>{@code Stream} equivalent:</b> {@code !stream.findAny().isPresent()}.
   */
  public final boolean isEmpty() {
    return !getDelegate().iterator().hasNext();
  }

  /**
   * Returns an {@code ImmutableList} containing all of the elements from this fluent iterable in

    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse list(final OptionalThing<Integer> pageNumber, final SearchForm form) {
        validate(form, messages -> {}, this::asDictIndexHtml);
        pageNumber.ifPresent(num -> {
            stopwordsPager.setCurrentPageNumber(pageNumber.get());
        }).orElse(() -> {
            stopwordsPager.setCurrentPageNumber(0);
        });

        return asListHtml();
    }

    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse list(final OptionalThing<Integer> pageNumber, final SearchForm form) {
        pageNumber.ifPresent(num -> {
            dataConfigPager.setCurrentPageNumber(pageNumber.get());
        }).orElse(() -> {
            dataConfigPager.setCurrentPageNumber(0);
        });

        return asListHtml();
    }

    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse list(final OptionalThing<Integer> pageNumber, final SearchForm form) {
        pageNumber.ifPresent(num -> {
            webConfigPager.setCurrentPageNumber(pageNumber.get());
        }).orElse(() -> {
            webConfigPager.setCurrentPageNumber(0);
        });

        return asListHtml();
    }

    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse list(final OptionalThing<Integer> pageNumber, final SearchForm form) {
        pageNumber.ifPresent(num -> {
            reqHeaderPager.setCurrentPageNumber(pageNumber.get());
        }).orElse(() -> {
            reqHeaderPager.setCurrentPageNumber(0);
        });

        return asListHtml();
    }

    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse list(final OptionalThing<Integer> pageNumber, final SearchForm form) {
        pageNumber.ifPresent(num -> {
            webAuthPager.setCurrentPageNumber(pageNumber.get());
        }).orElse(() -> {
            webAuthPager.setCurrentPageNumber(0);
        });

    assertEquals("woot", Iterators.tryFind(iterator, Predicates.alwaysFalse()).or("woot"));
    assertFalse(iterator.hasNext());
  }

  public void testTryFind_alwaysFalse_isPresent() {
    Iterable<String> list = Lists.newArrayList("cool", "pants");
    Iterator<String> iterator = list.iterator();
    assertThat(Iterators.tryFind(iterator, Predicates.alwaysFalse())).isAbsent();