assertOrder(X_GT_Y, "1-abc", "1-alpha");
        assertOrder(X_GT_Y, "1-abc", "1-beta");
        assertOrder(X_GT_Y, "1-abc", "1-milestone");
        assertOrder(X_GT_Y, "1-abc", "1-rc");
        assertOrder(X_GT_Y, "1-abc", "1-snapshot");
        assertOrder(X_GT_Y, "1-abc", "1");
        assertOrder(X_GT_Y, "1-abc", "1-sp");
    }

    @Test

  }

  public void testEmptiesFirst() {
    Optional<String> empty = Optional.empty();
    Optional<String> abc = Optional.of("abc");
    Optional<String> z = Optional.of("z");

    Comparator<Optional<String>> comparator = emptiesFirst(comparing(String::length));
    testComparator(comparator, empty, z, abc);

    // Just demonstrate that no explicit type parameter is required

    }
    assertEquals(expected, builder.toString());
  }

  static final CharSource BROKEN_READ_SOURCE = new TestCharSource("ABC", READ_THROWS);
  static final CharSource BROKEN_CLOSE_SOURCE = new TestCharSource("ABC", CLOSE_THROWS);
  static final CharSource BROKEN_OPEN_SOURCE = new TestCharSource("ABC", OPEN_THROWS);
  static final CharSink BROKEN_WRITE_SINK = new TestCharSink(WRITE_THROWS);

        .expect("A", "B", "C", "D", "E");
  }

  public void testFlatMap() {
    SpliteratorTester.of(
            () ->
                CollectSpliterators.flatMap(
                    Arrays.spliterator(new String[] {"abc", "", "de", "f", "g", ""}),
                    (String str) -> charactersOf(str).spliterator(),
                    Spliterator.SIZED | Spliterator.DISTINCT | Spliterator.NONNULL,
                    7))

        "1-beta123",
        "1-m2",
        "1-m11",
        "1-rc",
        "1-cr2",
        "1-rc123",
        "1-SNAPSHOT",
        "1",
        "1-sp",
        "1-sp2",
        "1-sp123",
        "1-abc",
        "1-def",
        "1-pom-1",
        "1-1-snapshot",
        "1-1",
        "1-2",
        "1-123"
    };

    private static final String[] VERSIONS_NUMBER = {

    //     smaller version of the same problem.
    //     Say we are rotating abcdefgh by 5. We start with abcde|fgh. The smaller block is [fgh]:
    //     [abc]de|[fgh] -> [fgh]de|[abc]. Now [fgh] is in the right place, but we need to swap [de]
    //     with [abc]: fgh[de]|a[bc] -> fgh[bc]|a[de]. Now we need to swap [a] with [bc]:
    //     fgh[b]c|[a]de -> fgh[a]c|[b]de. Finally we need to swap [c] with [b]:

    }

    @Test
    public void testConfigInterpolation() throws IOException {
        String config = "a=$\\\\\\\\{var}\n" + "ab=${a}b\n" + "abc=${ab}c";
        Map<String, String> expected = Map.of("a", "$\\{var}", "ab", "$\\{var}b", "abc", "$\\{var}bc");

        java.util.Properties props1 = new java.util.Properties();
        props1.load(new StringReader(config));

		b := NewWriterSize(tw, BufSize)
		b.WriteString("abc")
		tw.check(t, "", "")
		b.WriteString("123456789012345")      // long string, non-empty buffer
		tw.check(t, "abc12345", "6789012345") // use Write and then WriteString since the remaining part is still longer than BufSize
	}
	{
		tw := &teststringwriter{}
		b := NewWriterSize(tw, BufSize)
		b.Write([]byte("abc")) // same as above, but use Write instead of WriteString

                unfiltered.add("yyy");
                unfiltered.addAll(ImmutableList.copyOf(elements));
                unfiltered.add("zzz");
                unfiltered.add("abc");
                return Sets.filter(
                    Sets.filter(unfiltered, Collections2Test.LENGTH_1),
                    Collections2Test.NOT_YYY_ZZZ);
              }
            })

            .createTestSuite());

    return suite;
  }

  public void testCharactersOfIsView() {
    StringBuilder builder = new StringBuilder("abc");
    List<Character> chars = charactersOf(builder);
    assertEquals(asList('a', 'b', 'c'), chars);
    builder.append("def");
    assertEquals(asList('a', 'b', 'c', 'd', 'e', 'f'), chars);
    builder.deleteCharAt(5);