24, 21, 22, 23, 23, 21, 21, 22, 21, 23, 22, 23, 23, 20, 22, 22, 22, 23, 22, 22, 23, 26,
      26, 20, 19, 22, 23, 22, 25, 26, 26, 26, 27, 27, 26, 24, 25, 19, 21, 26, 27, 27, 26, 27,
      24, 21, 21, 26, 26, 28, 27, 27, 27, 20, 24, 20, 21, 22, 21, 21, 23, 22, 22, 25, 25, 24,
      24, 26, 23, 26, 27, 26, 26, 27, 27, 27, 27, 27, 28, 27, 27, 27, 27, 27, 26,
    )

  private val root = Node()

  init {

          else -> c.code
        }
      i++
    }
    return result
  }

  private val Int.punycodeDigit: Int
    get() =
      when {
        this < 26 -> this + 'a'.code
        this < 36 -> (this - 26) + '0'.code
        else -> error("unexpected digit: $this")
      }

    val body =
      FormBody.Builder()
        .addEncoded("a+=& b", "c+=& d")
        .addEncoded("e+=& f", "g+=& h")
        .addEncoded("%25", "%25")
        .build()
    val expected = "a+%3D%26+b=c+%3D%26+d&e+%3D%26+f=g+%3D%26+h&%25=%25"
    val out = Buffer()
    body.writeTo(out)
    assertThat(out.readUtf8()).isEqualTo(expected)
  }

  @Test
  fun encodedPair() {
    val body =
      FormBody.Builder()

    operator.write(0, buffer, buffer.size)
    operator.read(0, buffer, 12)
    operator.read(47, buffer, 3)
    operator.read(45, buffer, 2)
    operator.read(47, buffer, 3)
    operator.read(26, buffer, 10)
    operator.read(23, buffer, 3)
    operator.write(47, buffer, buffer.size)
    operator.read(62, buffer, 6)
    operator.read(4, buffer, 19)
    operator.write(80, buffer, buffer.size)

    } catch (e: ClassCastException) {
      // On android 8.0, socket.connect throws a ClassCastException due to a bug
      // see https://issuetracker.google.com/issues/63649622
      if (Build.VERSION.SDK_INT == 26) {
        throw IOException("Exception in connect", e)
      } else {
        throw e
      }
    }
  }

  override fun trustManager(sslSocketFactory: SSLSocketFactory): X509TrustManager? =