fail("Expected NullPointerException");
    } catch (NullPointerException expected) {
    }
    collector =
        TableCollectors.toImmutableTable(Cell::getRowKey, Cell::getColumnKey, Cell::getValue);
    try {
      Stream.of(immutableCell("one", "uno", 1), immutableCell("one", "uno", (Integer) null))
          .collect(collector);
      fail("Expected NullPointerException");

    try {
      comparator.compare(1, null);
      fail();
    } catch (NullPointerException expected) {
    }
    try {
      comparator.compare(null, 2);
      fail();
    } catch (NullPointerException expected) {
    }
    try {
      comparator.compare(null, null);
      fail();
    } catch (NullPointerException expected) {
    }
    assertSame(comparator, reserialize(comparator));

    try {
      comparator.compare(1, null);
      fail();
    } catch (NullPointerException expected) {
    }
    try {
      comparator.compare(null, 2);
      fail();
    } catch (NullPointerException expected) {
    }
    try {
      comparator.compare(null, null);
      fail();
    } catch (NullPointerException expected) {
    }
    assertSame(comparator, reserialize(comparator));

                    .spliterator())
        .expect(ImmutableList.of());
    SpliteratorTester.of(
            () ->
                Streams.mapWithIndex(
                        collectionImpl.apply(ImmutableList.of("a", "b", "c", "d", "e")),
                        (str, i) -> str + ":" + i)
                    .spliterator())
        .expect("a:0", "b:1", "c:2", "d:3", "e:4");
  }

            });
    Map<String, Boolean> expected = ImmutableMap.of("a", true, "b", false);
    assertMapsEqual(expected, map);
    assertEquals(expected.get("a"), map.get("a"));
    assertEquals(expected.containsKey("a"), map.containsKey("a"));
    assertEquals(expected.get("b"), map.get("b"));
    assertEquals(expected.containsKey("b"), map.containsKey("b"));
    assertEquals(expected.get("c"), map.get("c"));

  }

  private static void checkArrayEquals(Object[] expected, Object[] actual) {
    assertTrue(
        "expected("
            + expected.getClass()
            + "): "
            + Arrays.toString(expected)
            + " actual("
            + actual.getClass()
            + "): "
            + Arrays.toString(actual),
        arrayEquals(expected, actual));
  }

    List<String> actual = newArrayList(result);
    List<String> expected = asList("1", "2", "null", "3");
    assertEquals(expected, actual);
  }

  // Far less exhaustive than the tests in IteratorsTest
  public void testCycle() {
    Iterable<String> cycle = Iterables.cycle("a", "b");

    int howManyChecked = 0;
    for (String string : cycle) {
      String expected = (howManyChecked % 2 == 0) ? "a" : "b";

        UnresolvableModelException e = assertThrows(
                UnresolvableModelException.class,
                () -> newModelResolver().resolveModel(parent.getDelegate(), new AtomicReference<>()),
                "Expected 'UnresolvableModelException' not thrown.");
        assertNotNull(e.getMessage());
        assertThat(e.getMessage(), containsString("Could not find artifact org.apache:apache:pom:0 in central"));
    }

    @Test

        List<String> expected = new ArrayList<>();
        expected.add("maven-it-plugin-error");
        expected.add("maven-it-plugin-configuration");
        expected.add("maven-it-plugin-dependency-resolution");
        expected.add("maven-it-plugin-packaging");
        expected.add("maven-it-plugin-log-file");
        expected.add("maven-it-plugin-expression");

    } catch (IllegalStateException expected) {
    }
  }

  public void testChild() {
    InternetDomainName domain = InternetDomainName.from("foo.com");

    assertEquals("www.foo.com", domain.child("www").toString());

    try {
      domain.child("www.");
      fail("www..google.com should have been invalid");
    } catch (IllegalArgumentException expected) {
    }
  }