derReader.read("test") { header ->
      assertThat(header.tag).isEqualTo(2L)
      assertThat(header.tagClass).isEqualTo(DerHeader.TAG_CLASS_CONTEXT_SPECIFIC)
      assertThat(header.length).isEqualTo(7L)

      derReader.read("test") { header ->
        assertThat(header.tag).isEqualTo(3L)
        assertThat(header.tagClass).isEqualTo(DerHeader.TAG_CLASS_APPLICATION)
        assertThat(header.length).isEqualTo(5L)

    assertThat(url.resolve("#s")).isEqualTo(parse("http://a/b/c/d;p?q#s"))
    assertThat(url.resolve("g#s")).isEqualTo(parse("http://a/b/c/g#s"))
    assertThat(url.resolve("g?y#s")).isEqualTo(parse("http://a/b/c/g?y#s"))
    assertThat(url.resolve(";x")).isEqualTo(parse("http://a/b/c/;x"))
    assertThat(url.resolve("g;x")).isEqualTo(parse("http://a/b/c/g;x"))
    assertThat(url.resolve("g;x?y#s")).isEqualTo(parse("http://a/b/c/g;x?y#s"))

        assertThat(newArray.length, is(2));
        assertThat(newArray[0], is("111"));
        assertThat(newArray[1], is("222"));

        final String[] emptyArray = new String[0];
        assertThat(ArrayUtil.addAll((Object[]) null, (Object[]) null), is(nullValue()));
        assertThat(ArrayUtil.addAll(null, emptyArray).length, is(0));

  public void testConcat() {
    assertThat(Shorts.concat()).isEqualTo(EMPTY);
    assertThat(Shorts.concat(EMPTY)).isEqualTo(EMPTY);
    assertThat(Shorts.concat(EMPTY, EMPTY, EMPTY)).isEqualTo(EMPTY);
    assertThat(Shorts.concat(ARRAY1)).isEqualTo(ARRAY1);
    assertThat(Shorts.concat(ARRAY1)).isNotSameInstanceAs(ARRAY1);
    assertThat(Shorts.concat(EMPTY, ARRAY1, EMPTY)).isEqualTo(ARRAY1);
    assertThat(Shorts.concat(ARRAY1, ARRAY1, ARRAY1))

    @Test
    public void testConcatName() {
        assertThat(ClassUtil.concatName("aaa", "bbb"), is("aaa.bbb"));
        assertThat(ClassUtil.concatName("aaa", null), is("aaa"));
        assertThat(ClassUtil.concatName("aaa", ""), is("aaa"));
        assertThat(ClassUtil.concatName(null, "bbb"), is("bbb"));
        assertThat(ClassUtil.concatName("", "bbb"), is("bbb"));
        assertThat(ClassUtil.concatName("", "bbb"), is("bbb"));

    assertThat(source.readUtf8()).isEqualTo("hello")
  }

  @Test
  fun bytesEmpty() {
    val body = body("")
    assertThat(body.bytes().size).isEqualTo(0)
  }

  @Test
  fun bytesSeesBom() {
    val body = body("efbbbf68656c6c6f")
    val bytes = body.bytes()
    assertThat(bytes[0] and 0xff).isEqualTo(0xef)
    assertThat(bytes[1] and 0xff).isEqualTo(0xbb)

      .isEqualTo("google.co.uk")
    assertThat("https://栃.栃木.jp".toHttpUrl().topPrivateDomain())
      .isEqualTo("xn--ewv.xn--4pvxs.jp")
    assertThat("https://xn--ewv.xn--4pvxs.jp".toHttpUrl().topPrivateDomain())
      .isEqualTo("xn--ewv.xn--4pvxs.jp")
    assertThat("https://co.uk".toHttpUrl().topPrivateDomain()).isNull()
    assertThat("https://square".toHttpUrl().topPrivateDomain()).isNull()

    ImmutableIntArray iia = ImmutableIntArray.of(1, 1, 2, 3, 5, 8);
    assertThat(iia.indexOf(1)).isEqualTo(0);
    assertThat(iia.indexOf(8)).isEqualTo(5);
    assertThat(iia.indexOf(4)).isEqualTo(-1);
    assertThat(ImmutableIntArray.of(13).indexOf(13)).isEqualTo(0);
    assertThat(ImmutableIntArray.of().indexOf(21)).isEqualTo(-1);
    assertThat(iia.subArray(1, 5).indexOf(1)).isEqualTo(0);
  }

    assertThat(challenges.size).isEqualTo(1)
    assertThat(challenges[0].scheme).isEqualTo("DiGeSt")
    assertThat(challenges[0].realm).isEqualTo("myrealm")
    val expectedAuthParams = mutableMapOf<String, String>()
    expectedAuthParams["realm"] = "myrealm"
    expectedAuthParams["nonce"] = "fjalskdflwejrlaskdfjlaskdjflaksjdflkasdf"
    expectedAuthParams["qop"] = "auth"
    expectedAuthParams["stale"] = "FALSE"

    assertThat(nothing).containsExactly("").inOrder();
  }

  public void testCharacterSplitOnEmptyStringOmitEmptyStrings() {
    assertThat(Splitter.on('.').omitEmptyStrings().split("")).isEmpty();
  }

  public void testCharacterSplitOnOnlyDelimiter() {
    Iterable<String> blankblank = Splitter.on('.').split(".");
    assertThat(blankblank).containsExactly("", "").inOrder();
  }