assertTrue(multimap.containsKey("foo"));
    assertFalse(multimap.containsKey("cat"));
    assertTrue(multimap.containsValue(1));
    assertFalse(multimap.containsValue(5));
    assertTrue(multimap.containsEntry("foo", 1));
    assertFalse(multimap.containsEntry("cat", 1));
    assertFalse(multimap.containsEntry("foo", 5));
    assertFalse(multimap.entries().isEmpty());

    }
  }

  public void testForArrayWithPosition() {
    String[] array = {"foo", "bar", "cat"};
    Iterator<String> iterator = Iterators.forArrayWithPosition(array, 1);
    assertTrue(iterator.hasNext());
    assertEquals("bar", iterator.next());
    assertTrue(iterator.hasNext());
    assertEquals("cat", iterator.next());
    assertFalse(iterator.hasNext());
  }

    ms.add("b");
    ms.add("c");

    assertEquals(2, ms.count("bar"));
    assertEquals(3, ms.count("b"));

    Multiset<String> ms2 = TreeMultiset.create(DEGENERATE_COMPARATOR);

    ms2.add("cat", 2);
    ms2.add("x", 3);

    assertEquals(ms, ms2);
    assertEquals(ms2, ms);

    SortedSet<String> elementSet = ms.elementSet();
    assertEquals("a", elementSet.first());

    assertTrue(multimap.containsKey("foo"));
    assertFalse(multimap.containsKey("cat"));
    assertTrue(multimap.containsValue(1));
    assertFalse(multimap.containsValue(5));
    assertTrue(multimap.containsEntry("foo", 1));
    assertFalse(multimap.containsEntry("cat", 1));
    assertFalse(multimap.containsEntry("foo", 5));
    assertFalse(multimap.entries().isEmpty());

    ms.add("b");
    ms.add("c");

    assertEquals(2, ms.count("bar"));
    assertEquals(3, ms.count("b"));

    Multiset<String> ms2 = TreeMultiset.create(DEGENERATE_COMPARATOR);

    ms2.add("cat", 2);
    ms2.add("x", 3);

    assertEquals(ms, ms2);
    assertEquals(ms2, ms);

    SortedSet<String> elementSet = ms.elementSet();
    assertEquals("a", elementSet.first());

          Maps.immutableEntry("bar", 1),
          Maps.immutableEntry("bar", 2),
          Maps.immutableEntry("foo", 3),
          Maps.immutableEntry("bar", 3),
          Maps.immutableEntry("cat", 2));
    }

    @Override
    public Collection<Entry<String, Integer>> create(Object... elements) {
      Multimap<String, Integer> multimap = createMultimap();
      for (Object element : elements) {

     * --- fail(). (If the test were to pass, its output would be hidden.)
     * - Run the test.
     * - Pull the relevant lines of output from the test into a testcases file.
     * - Test the output:
     * --- cat testcases | while read L; do
     *       X=($L)
     *       A=$( cd /b/c && sudo mkdir -p ${X[0]} && cd ${X[0]} && pwd |
     *           sed -e 's#^//*#/#' )
     *       B=$( cd /b/c && cd ${X[1]} && pwd )

     * --- fail(). (If the test were to pass, its output would be hidden.)
     * - Run the test.
     * - Pull the relevant lines of output from the test into a testcases file.
     * - Test the output:
     * --- cat testcases | while read L; do
     *       X=($L)
     *       A=$( cd /b/c && sudo mkdir -p ${X[0]} && cd ${X[0]} && pwd |
     *           sed -e 's#^//*#/#' )
     *       B=$( cd /b/c && cd ${X[1]} && pwd )

            + "(bar,1)=b, (bar,2)=null, (bar,3)=null, "
            + "(cat,1)=null, (cat,2)=null, (cat,3)=null]",
        table.cellSet().toString());
  }

  public void testRowKeySetToString_ordered() {
    table = create("foo", 1, 'a', "bar", 1, 'b', "foo", 3, 'c');
    assertEquals("[foo, bar, cat]", table.rowKeySet().toString());
  }

  public void testColumnKeySetToString_ordered() {

            + "(bar,1)=b, (bar,2)=null, (bar,3)=null, "
            + "(cat,1)=null, (cat,2)=null, (cat,3)=null]",
        table.cellSet().toString());
  }

  public void testRowKeySetToString_ordered() {
    table = create("foo", 1, 'a', "bar", 1, 'b', "foo", 3, 'c');
    assertEquals("[foo, bar, cat]", table.rowKeySet().toString());
  }

  public void testColumnKeySetToString_ordered() {