* IllegalArgumentException}.
   */
  @Override
  boolean allowsSelfLoops();

  /** Returns the order of iteration for the elements of {@link #nodes()}. */
  @Override
  ElementOrder<N> nodeOrder();

  /**
   * Returns an {@link ElementOrder} that specifies the order of iteration for the elements of
   * {@link #edges()}, {@link #adjacentNodes(Object)}, {@link #predecessors(Object)}, {@link

    if (values.size() >= 1) {
      a = values.get(0);
      if (values.size() >= 3) {
        b = values.get(1);
        c = values.get(2);
      }
    }
  }

  /** Resets the contents of navigableSet to have elements a, c, for the navigation tests. */
  protected void resetWithHole() {
    super.resetContainer(getSubjectGenerator().create(a, c));
    navigableSet = (NavigableSet<E>) getSet();
  }

        List<Element> valueTitles = new ArrayList<Element>();
        for (int i = 1; i < header.size(); i++) {
            Element element = header.get(i);
            Element override = findChild(element, "overrides");
            if (override != null) {
                element.removeChild(override);
                inheritedValueTitleMapping.put(override.getTextContent(), element);
            }
            Node firstChild = element.getFirstChild();

  public final AnEnum[] createKeyArray(int length) {
    return new AnEnum[length];
  }

  @Override
  public final String[] createValueArray(int length) {
    return new String[length];
  }

  /** Returns the elements sorted in natural order. */
  @Override
  public Iterable<Entry<AnEnum, String>> order(List<Entry<AnEnum, String>> insertionOrder) {
    return orderEntriesByKey(insertionOrder);
  }

			wantResult: `{"_1":1.5,"_2":2.5}`,
		},
		{
			name:  "limit-1",
			query: `SELECT * FROM S3Object[*].elements[*] LIMIT 1`,
			requestXML: []byte(`
<?xml version="1.0" encoding="UTF-8"?>
<SelectObjectContentRequest>
    <Expression>select * from s3object[*].elements[*] s where s.element_type = '__elem__merfu'</Expression>
    <ExpressionType>SQL</ExpressionType>
    <InputSerialization>

          }
        };

    // Don't let the elements be in such a predictable order
    list = shuffledCopy(list, new Random(1));

    sort(list, arbitrary);

    // Now we don't care what order it's put the list in, only that
    // comparing any pair of elements gives the answer we expect.
    testComparator(arbitrary, list);
  }

          }
        };

    // Don't let the elements be in such a predictable order
    list = shuffledCopy(list, new Random(1));

    sort(list, arbitrary);

    // Now we don't care what order it's put the list in, only that
    // comparing any pair of elements gives the answer we expect.
    testComparator(arbitrary, list);
  }

            String url = element.'@url'
            if (url.startsWith('website:')) {
                url = url.substring(8)
                url = "${websiteUrl.get()}/${url}"
                element.setAttribute('url', url)
            }
        }
    }

    static def findAll(Document doc, String byName) {
        doc.documentElement.depthFirst().findAll { it.name() == byName }
    }

      return mapGenerator.order(insertionOrder);
    }

    @Override
    public Map<K, V> create(Object... elements) {
      return SerializableTester.reserialize(mapGenerator.create(elements));
    }

    @Override
    public K[] createKeyArray(int length) {
      return ((TestMapGenerator<K, V>) mapGenerator.getInnerGenerator()).createKeyArray(length);
    }

    if (values.size() >= 1) {
      a = values.get(0);
      if (values.size() >= 3) {
        b = values.get(1);
        c = values.get(2);
      }
    }
  }

  /** Resets the contents of navigableSet to have elements a, c, for the navigation tests. */
  protected void resetWithHole() {
    super.resetContainer(getSubjectGenerator().create(a, c));
    navigableSet = (NavigableSet<E>) getSet();
  }