doTestNoMatches(CharMatcher.none(), "blah");
    doTestNoMatches(is('a'), "bcde");
    doTestNoMatches(isNot('a'), "aaaa");
    doTestNoMatches(anyOf(""), "abcd");
    doTestNoMatches(anyOf("x"), "abcd");
    doTestNoMatches(anyOf("xy"), "abcd");
    doTestNoMatches(anyOf("CharMatcher"), "zxqy");
    doTestNoMatches(noneOf("CharMatcher"), "ChMa");
    doTestNoMatches(inRange('p', 'x'), "mom");

    val multipart =
      """
      |--simple boundary
      |
      |abcd
      |--simple boundary
      |
      |efgh
      |--simple boundary--
      """.trimMargin()
        .replace("\n", "\r\n")
        .replace(Regex("(?m)abcd\r\n"), "abcd\n")

    val parts =
      MultipartReader(
        boundary = "simple boundary",

    assertEqualCharNodes(traverser.breadthFirst(charactersOf("acdb")), "acdb");
    assertEqualCharNodes(traverser.breadthFirst(charactersOf("db")), "db");
  }

  @Test
  public void forGraph_breadthFirst_multiGraph() {
    Traverser<Character> traverser = Traverser.forGraph(MULTI_GRAPH);
    assertEqualCharNodes(traverser.breadthFirst('a'), "abcd");

    assertEqualCharNodes(traverser.breadthFirst(charactersOf("acdb")), "acdb");
    assertEqualCharNodes(traverser.breadthFirst(charactersOf("db")), "db");
  }

  @Test
  public void forGraph_breadthFirst_multiGraph() {
    Traverser<Character> traverser = Traverser.forGraph(MULTI_GRAPH);
    assertEqualCharNodes(traverser.breadthFirst('a'), "abcd");

foo:////://///  s:foo p:////://///
c:/foo  s:c p:/foo
//foo/bar  s:http h:foo p:/bar
http://foo/path;a??e#f#g  s:http h:foo p:/path;a q:??e f:#f#g
http://foo/abcd?efgh?ijkl  s:http h:foo p:/abcd q:?efgh?ijkl
http://foo/abcd#foo?bar  s:http h:foo p:/abcd f:#foo?bar
[61:24:74]:98  s:http h:example.org p:/foo/[61:24:74]:98
http:[61:27]/:foo  s:http h:example.org p:/foo/[61:27]/:foo
http://[1::2]:3:4
http://2001::1
http://2001::1]

    doTestNoMatches(CharMatcher.none(), "blah");
    doTestNoMatches(is('a'), "bcde");
    doTestNoMatches(isNot('a'), "aaaa");
    doTestNoMatches(anyOf(""), "abcd");
    doTestNoMatches(anyOf("x"), "abcd");
    doTestNoMatches(anyOf("xy"), "abcd");
    doTestNoMatches(anyOf("CharMatcher"), "zxqy");
    doTestNoMatches(noneOf("CharMatcher"), "ChMa");
    doTestNoMatches(inRange('p', 'x'), "mom");

    String simple = "abcd";
    Iterable<String> letters = Splitter.fixedLength(1).limit(100).split(simple);
    assertThat(letters).containsExactly("a", "b", "c", "d").inOrder();
  }

  public void testLimitOne() {
    String simple = "abcd";
    Iterable<String> letters = Splitter.fixedLength(1).limit(1).split(simple);
    assertThat(letters).containsExactly("abcd").inOrder();
  }

    assertTrue(emptyConcat.isEmpty());
  }

  public void testConcat_infiniteIterable() throws IOException {
    CharSource source = CharSource.wrap("abcd");
    Iterable<CharSource> cycle = Iterables.cycle(ImmutableList.of(source));
    CharSource concatenated = CharSource.concat(cycle);

    String expected = "abcdabcd";

    assertTrue(emptyConcat.isEmpty());
  }

  public void testConcat_infiniteIterable() throws IOException {
    CharSource source = CharSource.wrap("abcd");
    Iterable<CharSource> cycle = Iterables.cycle(ImmutableList.of(source));
    CharSource concatenated = CharSource.concat(cycle);

    String expected = "abcdabcd";

    assertThat(bodyToHex(body), "Retransmit body").isEqualTo("616263")
  }

  @Test
  fun byteArrayRange() {
    val contentType = "text/plain".toMediaType()
    val body: RequestBody = ".abcd".toByteArray().toRequestBody(contentType, 1, 3)
    assertThat(body.contentType()).isEqualTo(contentType)
    assertThat(body.contentLength()).isEqualTo(3)
    assertThat(bodyToHex(body)).isEqualTo("616263")