val source1 = relay.newSource()!!.buffer()
    val source2 = relay.newSource()!!.buffer()
    assertThat(source1.readUtf8(5)).isEqualTo("abcde")
    assertThat(source2.readUtf8(5)).isEqualTo("abcde")
    assertThat(source2.readUtf8(5)).isEqualTo("fghij")
    assertThat(source1.readUtf8(5)).isEqualTo("fghij")
    assertThat(source1.exhausted()).isTrue()
    assertThat(source2.exhausted()).isTrue()
    source1.close()

    operatorA.write(36, bufferA, 33)
    operatorB.read(0, bufferB, 9)
    assertThat(bufferB.readUtf8()).isEqualTo("Dodgson!\n")
    operatorA.read(9, bufferA, 27)
    assertThat(bufferA.readUtf8()).isEqualTo("You shouldn't use my name.\n")
    operatorB.read(36, bufferB, 33)
    assertThat(bufferB.readUtf8()).isEqualTo("Dodgson, we've got Dodgson here!\n")
  }

  @Test
  fun largeRead() {

      val connection = url.openConnection() as HttpURLConnection

      assertThat(
        connection.inputStream
          .source()
          .buffer()
          .readUtf8(),
      ).contains("Peter the person")
    }
  }

  @Test
  fun testUrlConnectionPlaintextProxied() {
    testRequest {
      val proxy =
        Proxy(
          Proxy.Type.HTTP,

    val body = "".decodeHex().toResponseBody(mediaType)
    val source = body.source()
    assertThat(source.exhausted()).isTrue()
    assertThat(source.readUtf8()).isEqualTo("")
  }

  @Test
  fun sourceClosesUnderlyingSource() {
    var closed = false

    val body: ResponseBody =
      object : ResponseBody() {
        override fun contentType(): MediaType? = null

    val buffer = Buffer()
    for (codePoint in 0..0x10ffff) {
      val allowedByTable = table.map(codePoint, buffer)
      val tableMappedTo = buffer.readUtf8()

      val allowedByCompactTable = compactTable.map(codePoint, buffer)
      val compactTableMappedTo = buffer.readUtf8()

      assertThat(allowedByCompactTable).isEqualTo(allowedByTable)
      assertThat(compactTableMappedTo).isEqualTo(tableMappedTo)
    }
  }

    val metadataFile =
      fileSystem.allPaths.find {
        it.name.endsWith(".0")
      }

    if (metadataFile != null) {
      val contents =
        fileSystem.read(metadataFile) {
          readUtf8()
        }

      fileSystem.write(metadataFile) {
        writeUtf8(corruptor(contents))
      }
    }
  }

  private fun testCorruptingCache(corruptor: () -> Unit): Response {

  val handshake: Handshake?
  val requestUrl: HttpUrl?

  @get:JvmName("-deprecated_utf8Body")
  @Deprecated(
    message = "Use body.readUtf8()",
    replaceWith = ReplaceWith("body.readUtf8()"),
    level = DeprecationLevel.ERROR,
  )
  val utf8Body: String
    get() = body.readUtf8()

  val tlsVersion: TlsVersion?
    get() = handshake?.tlsVersion

  internal constructor(
    requestLine: String,

        alreadyEncoded = alreadyEncoded,
        strict = strict,
        plusIsSpace = plusIsSpace,
        unicodeAllowed = unicodeAllowed,
        charset = charset,
      )
      return out.readUtf8()
    }
    i += Character.charCount(codePoint)
  }

  // Fast path: no characters in [pos..limit) required encoding.
  return substring(pos, limit)
}

internal fun Buffer.writePercentDecoded(

    if (i == -1L) return null // Unterminated quoted string.

    if (this[i] == '"'.code.toByte()) {
      result.write(this, i)
      // Consume '"'.
      readByte()
      return result.readUtf8()
    }

    if (size == i + 1L) return null // Dangling escape.
    result.write(this, i)
    // Consume '\'.
    readByte()
    result.write(this, 1L) // The escaped character.
  }
}

/**

    body.writeTo(out)
    assertThat(out.readUtf8()).isEqualTo(expected)
  }

  @Test
  fun encodedPair() {
    val body =
      FormBody
        .Builder()
        .add("sim", "ple")
        .build()
    val expected = "sim=ple"
    assertThat(body.contentLength()).isEqualTo(expected.length.toLong())
    val buffer = Buffer()
    body.writeTo(buffer)
    assertThat(buffer.readUtf8()).isEqualTo(expected)
  }

  @Test