private final ImmutableTable<Character, Integer, String> testTable =
      new SingletonImmutableTable<>('a', 1, "blah");

  public void testHashCode() {
    assertEquals(Objects.hashCode('a', 1, "blah"), testTable.hashCode());
  }

  public void testCellSet() {
    assertEquals(ImmutableSet.of(Tables.immutableCell('a', 1, "blah")), testTable.cellSet());
  }

  public void testColumn() {

    assertTrue(
        RegularImmutableTable.forCells(
                ImmutableSet.of(
                    Tables.immutableCell('a', 1, "blah"),
                    Tables.immutableCell('b', 2, "blah"),
                    Tables.immutableCell('c', 3, "blah")))
            instanceof SparseImmutableTable<?, ?, ?>);
  }

  public void testGet() {

    assertEquals("blah", MoreFiles.getNameWithoutExtension(FS.getPath("blah.txt")));
    assertEquals("blah.", MoreFiles.getNameWithoutExtension(FS.getPath("blah..txt")));
    assertEquals(".blah", MoreFiles.getNameWithoutExtension(FS.getPath(".blah.txt")));
    assertEquals("blah", MoreFiles.getNameWithoutExtension(root().resolve("tmp/blah.txt")));

  private final ImmutableTable<Character, Integer, String> testTable =
      new SingletonImmutableTable<>('a', 1, "blah");

  public void testHashCode() {
    assertEquals(Objects.hashCode('a', 1, "blah"), testTable.hashCode());
  }

  public void testCellSet() {
    assertEquals(ImmutableSet.of(Tables.immutableCell('a', 1, "blah")), testTable.cellSet());
  }

  public void testColumn() {

      try {
        testInstance.put('a', 1, "blah");
        fail();
      } catch (UnsupportedOperationException e) {
        // success
      }
    }
  }

  public final void testPutAll() {
    for (Table<Character, Integer, String> testInstance : getTestInstances()) {
      try {
        testInstance.putAll(ImmutableTable.of('a', 1, "blah"));
        fail();
      } catch (UnsupportedOperationException e) {

    assertTrue(
        RegularImmutableTable.forCells(
                ImmutableSet.of(
                    Tables.immutableCell('a', 1, "blah"),
                    Tables.immutableCell('b', 2, "blah"),
                    Tables.immutableCell('c', 3, "blah")))
            instanceof SparseImmutableTable<?, ?, ?>);
  }

  public void testGet() {

      try {
        testInstance.put('a', 1, "blah");
        fail();
      } catch (UnsupportedOperationException e) {
        // success
      }
    }
  }

  public final void testPutAll() {
    for (Table<Character, Integer, String> testInstance : getTestInstances()) {
      try {
        testInstance.putAll(ImmutableTable.of('a', 1, "blah"));
        fail();
      } catch (UnsupportedOperationException e) {

  public void testHashCode() {
    assertEquals(0, INSTANCE.hashCode());
  }

  public void testEqualsObject() {
    Table<Character, Integer, String> nonEmptyTable = HashBasedTable.create();
    nonEmptyTable.put('A', 1, "blah");

    new EqualsTester()
        .addEqualityGroup(INSTANCE, HashBasedTable.create(), TreeBasedTable.create())
        .addEqualityGroup(nonEmptyTable)
        .testEquals();
  }

  @GwtIncompatible // ArrayTable

  public void testHashCode() {
    assertEquals(0, INSTANCE.hashCode());
  }

  public void testEqualsObject() {
    Table<Character, Integer, String> nonEmptyTable = HashBasedTable.create();
    nonEmptyTable.put('A', 1, "blah");

    new EqualsTester()
        .addEqualityGroup(INSTANCE, HashBasedTable.create(), TreeBasedTable.create())
        .addEqualityGroup(nonEmptyTable)
        .testEquals();
  }

  @GwtIncompatible // ArrayTable

    assertFalse(set.contains(0));
    assertTrue(set.contains(1));
    assertTrue(set.contains(2));
    assertTrue(set.contains(3));
    assertFalse(set.contains(4));
    assertFalse(set.contains((Object) "blah"));
  }

  public void testContainsAll() {
    ImmutableSortedSet<Integer> set = ContiguousSet.create(Range.closed(1, 3), integers());
    for (Set<Integer> subset : Sets.powerSet(ImmutableSet.of(1, 2, 3))) {