assertEquals(ImmutableSet.of(1), testTable.columnKeySet());
  }

  public void testColumnMap() {
    assertEquals(ImmutableMap.of(1, ImmutableMap.of('a', "blah")), testTable.columnMap());
  }

  public void testRow() {
    assertEquals(ImmutableMap.of(), testTable.row('A'));
    assertEquals(ImmutableMap.of(1, "blah"), testTable.row('a'));
  }

  public void testRowKeySet() {

  }

  public void testContainsRow() {
    assertFalse(INSTANCE.containsRow('a'));
  }

  public void testContainsValue() {
    assertFalse(INSTANCE.containsValue("blah"));
  }

  public void testRow() {
    assertEquals(ImmutableMap.of(), INSTANCE.row('a'));
  }

  public void testRowKeySet() {
    assertEquals(ImmutableSet.of(), INSTANCE.rowKeySet());
  }

  public void testRowMap() {

      assertTrue(testInstance.containsRow('a'));
      assertTrue(testInstance.containsRow('b'));
      assertFalse(testInstance.containsRow('c'));
    }
  }

  public void testRow() {
    for (ImmutableTable<Character, Integer, String> testInstance : getTestInstances()) {
      assertEquals(ImmutableMap.of(1, "foo", 2, "baz"), testInstance.row('a'));

    assertEquals(expected, table.hashCode());
  }

  public void testToStringSize1() {
    table = create("foo", 1, 'a');
    assertEquals("{foo={1=a}}", table.toString());
  }

  public void testRow() {
    table = create("foo", 1, 'a', "bar", 1, 'b', "foo", 3, 'c');
    assertEquals(ImmutableMap.of(1, 'a', 3, 'c'), table.row("foo"));
  }

  // This test assumes that the implementation does not support null keys.

    assertEquals(expected, table.hashCode());
  }

  public void testToStringSize1() {
    table = create("foo", 1, 'a');
    assertEquals("{foo={1=a}}", table.toString());
  }

  public void testRow() {
    table = create("foo", 1, 'a', "bar", 1, 'b', "foo", 3, 'c');
    assertEquals(ImmutableMap.of(1, 'a', 3, 'c'), table.row("foo"));
  }

  // This test assumes that the implementation does not support null keys.

        assertFalse(robotsTxt.allows("/valid1/", "TestBot"));
        assertFalse(robotsTxt.allows("/valid2/", "TestBot"));
        assertTrue(robotsTxt.allows("/valid3/", "TestBot"));
        assertFalse(robotsTxt.allows("/valid4/", "TestBot"));
    }

    public void testParse_emptyValues() {
        String robotsTxtContent = "User-agent: TestBot\n" + "Disallow:\n" + "Allow:\n" + "Crawl-delay:\n";

    for (long a : TEST_LONGS) {
      assertThrows(
          ArithmeticException.class,
          () -> UnsignedLong.fromLongBits(a).dividedBy(UnsignedLong.ZERO));
    }
  }

  public void testMod() {
    for (long a : TEST_LONGS) {
      for (long b : TEST_LONGS) {
        if (b != 0) {
          UnsignedLong aUnsigned = UnsignedLong.fromLongBits(a);

  }

  public void testAbsent() {
    Optional<String> optionalName = Optional.absent();
    assertFalse(optionalName.isPresent());
  }

  public void testOf() {
    assertEquals("training", Optional.of("training").get());
  }

  public void testOf_null() {
    assertThrows(NullPointerException.class, () -> Optional.of(null));
  }

  public void testFromNullable() {

        String result = normalizer.normalize("ﾆﾎﾝ", "field");

        assertEquals("ニホン", result);
    }

    @Test
    public void test_wo() throws Exception {
        HankakuKanaToZenkakuKana normalizer = new HankakuKanaToZenkakuKana();

        String result = normalizer.normalize("ｦ", "field");

        assertEquals("ヲ", result);
    }

    for (long a : TEST_LONGS) {
      assertThrows(
          ArithmeticException.class,
          () -> UnsignedLong.fromLongBits(a).dividedBy(UnsignedLong.ZERO));
    }
  }

  public void testMod() {
    for (long a : TEST_LONGS) {
      for (long b : TEST_LONGS) {
        if (b != 0) {
          UnsignedLong aUnsigned = UnsignedLong.fromLongBits(a);