unfiltered.put("four", 4);
    assertEquals(ImmutableMap.of("two", 2, "three", 3, "four", 4), unfiltered);
    assertEquals(ImmutableMap.of("three", 3, "four", 4), filtered);

    unfiltered.remove("three");
    assertEquals(ImmutableMap.of("two", 2, "four", 4), unfiltered);
    assertEquals(ImmutableMap.of("four", 4), filtered);

    unfiltered.clear();
    assertEquals(ImmutableMap.of(), unfiltered);

    String[] empty = ObjectArrays.newArray(String.class, 0);
    assertEquals(String[].class, empty.getClass());
    assertThat(empty).isEmpty();
  }

  @GwtIncompatible // ObjectArrays.newArray(Class, int)
  public void testNewArray_fromClass_Nonempty() {
    String[] array = ObjectArrays.newArray(String.class, 2);
    assertEquals(String[].class, array.getClass());
    assertThat(array).hasLength(2);

        DocList docList = new DocList();

        assertEquals(0, docList.getContentSize());
        assertEquals(0, docList.getProcessingTime());

        docList.addContentSize(1000);
        docList.addProcessingTime(999);
        assertEquals(1000, docList.getContentSize());
        assertEquals(999, docList.getProcessingTime());

        docList.clear();
        assertEquals(0, docList.getContentSize());

        if (list.contains(key)) {
          assertEquals(list.indexOf(key), answer);
          return;
        }
        break;
      case LAST_PRESENT:
        if (list.contains(key)) {
          assertEquals(list.lastIndexOf(key), answer);
          return;
        }
        break;
      case ANY_PRESENT:
        if (list.contains(key)) {
          assertEquals(key, list.get(answer));
          return;
        }

        List<String> pluginGroups = merged.getPluginGroups();

        assertNotNull(pluginGroups);
        assertEquals(3, pluginGroups.size());
        assertEquals("org.apache.maven.plugins", pluginGroups.get(0));
        assertEquals("org.codehaus.modello", pluginGroups.get(1));
        assertEquals("org.codehaus.plexus", pluginGroups.get(2));
    }

    @Test
    void testRoundTripProfiles() {

        assertEquals(1, synonymItem.getId());
        assertEquals(2, synonymItem.getInputs().length);
        assertEquals("a", synonymItem.getInputs()[0]);
        assertEquals("A", synonymItem.getInputs()[1]);
        assertEquals(2, synonymItem.getOutputs().length);
        assertEquals("b", synonymItem.getOutputs()[0]);
        assertEquals("B", synonymItem.getOutputs()[1]);

        crawlinginfopage.clear();
        assertEquals(0, crawlinginfopage.getAllRecordCount());
        assertEquals(0, crawlinginfopage.getAllPageCount());
        assertEquals(false, crawlinginfopage.isExistPrePage());
        assertEquals(false, crawlinginfopage.isExistNextPage());
        assertEquals(25, crawlinginfopage.getPageSize());
        assertEquals(1, crawlinginfopage.getCurrentPageNumber());

        boostdocpager.clear();
        assertEquals(0, boostdocpager.getAllRecordCount());
        assertEquals(0, boostdocpager.getAllPageCount());
        assertEquals(false, boostdocpager.isExistPrePage());
        assertEquals(false, boostdocpager.isExistNextPage());
        assertEquals(25, boostdocpager.getPageSize());
        assertEquals(1, boostdocpager.getCurrentPageNumber());
        assertNull(boostdocpager.id);

    assertEquals(
        GeneralRange.range(ORDERING, 2, CLOSED, 4, OPEN),
        range.intersect(GeneralRange.<@Nullable Integer>range(ORDERING, null, OPEN, 5, CLOSED)));

    assertEquals(
        GeneralRange.range(ORDERING, 2, OPEN, 4, OPEN),
        range.intersect(GeneralRange.range(ORDERING, 2, OPEN, 5, CLOSED)));

    assertEquals(

    SortedSet<@Nullable String> keySet = multimap.keySet();

    assertEquals(null, keySet.first());
    assertEquals("google", keySet.last());
    assertEquals(StringLength.COMPARATOR, keySet.comparator());
    assertEquals(Sets.<@Nullable String>newHashSet(null, "tree"), keySet.headSet("yahoo"));
    assertEquals(Sets.newHashSet("google"), keySet.tailSet("yahoo"));
    assertEquals(Sets.newHashSet("tree"), keySet.subSet("ask", "yahoo"));
  }