@Override public MediaType contentType() {
        return MEDIA_TYPE_MARKDOWN;
      }

      @Override public void writeTo(BufferedSink sink) throws IOException {
        sink.writeUtf8("Numbers\n");
        sink.writeUtf8("-------\n");
        for (int i = 2; i <= 997; i++) {
          sink.writeUtf8(String.format(" * %s = %s\n", i, factor(i)));
        }
      }

      private String factor(int n) {

    TestCharSink sink = new TestCharSink();

    assertFalse(sink.wasStreamOpened() || sink.wasStreamClosed());

    assertEquals(STRING.length(), source.copyTo(sink));
    assertTrue(source.wasStreamOpened() && source.wasStreamClosed());
    assertTrue(sink.wasStreamOpened() && sink.wasStreamClosed());

    assertThat(sink.getString()).isEqualTo(STRING);
  }

   *
   * @param sink the output byte array
   * @param offset the offset into the array at which to start writing
   * @param value the value to write
   */
  static void store64(byte[] sink, int offset, long value) {
    // We don't want to assert in production code.
    assert offset >= 0 && offset + 8 <= sink.length;
    // Delegates to the fast (unsafe)version or the fallback.

  override fun contentType(): MediaType? = null

  override fun writeTo(sink: BufferedSink) {
    requestBodySinks.add(sink)
  }

  override fun isDuplex(): Boolean = true

  @Throws(InterruptedException::class)
  fun takeSink(): BufferedSink = requestBodySinks.poll(5, SECONDS) ?: throw AssertionError("no sink to take")

  fun assertNoMoreSinks() {
    assertTrue(requestBodySinks.isEmpty())
  }

      )
    stream.writeHeaders(
      responseHeaders = responseHeaders,
      outFinished = false,
      flushHeaders = false,
    )
    file.source().use { source ->
      stream.sink.buffer().use { sink ->
        sink.writeAll(source)
      }
    }
  }

  private fun contentType(file: File): String =
    when {
      file.name.endsWith(".css") -> "text/css"

) : RequestBody() {
  override fun contentType() = delegate.contentType()

  // We don't know the compressed length in advance!
  override fun contentLength() = -1L

  override fun writeTo(sink: BufferedSink) {
    GzipSink(sink).buffer().use(delegate::writeTo)
  }

  override fun isOneShot() = delegate.isOneShot()

}

internal class BufferMockResponseBody(
  val buffer: Buffer,
) : MockResponseBody {
  override val contentLength = buffer.size

  override fun writeTo(sink: BufferedSink) {
    buffer.copyTo(sink.buffer)
    sink.emitCompleteSegments()
  }

  override val source: BufferedSource
  override val sink: BufferedSink
}

fun JavaNetSocket.asBufferedSocket(): BufferedSocket = asOkioSocket().asBufferedSocket()

fun OkioSocket.asBufferedSocket(): BufferedSocket =
  object : BufferedSocket {
    private val delegate = this@asBufferedSocket
    override val source = delegate.source.buffer()
    override val sink = delegate.sink.buffer()

    override fun cancel() {

    val requestBody =
      object : RequestBody() {
        override fun contentType() = MEDIA_TYPE_MARKDOWN

        override fun writeTo(sink: BufferedSink) {
          sink.writeUtf8("Numbers\n")
          sink.writeUtf8("-------\n")
          for (i in 2..997) {
            sink.writeUtf8(String.format(" * $i = ${factor(i)}\n"))
          }
        }

        private fun factor(n: Int): String {

      override fun writeTo(sink: BufferedSink) {
        sink.writeUtf8("<el")
        sink.flush()
        throw IOException("failed to stream the XML")
      }
    }

    class ValidRequestBody : RequestBody() {
      override fun contentType(): MediaType = "application/xml".toMediaType()

      override fun writeTo(sink: BufferedSink) {
        sink.writeUtf8("<element/>")
        sink.flush()