val bodySize = if (contentLength != -1L) "$contentLength-byte" else "unknown-length"
      logger.log(
        buildString {
          append("<-- ${response.code}")
          if (response.message.isNotEmpty()) append(" ${response.message}")
          append(" ${redactUrl(response.request.url)} (${tookMs}ms")
          if (!logHeaders) append(", $bodySize body")
          append(")")
        },

		SetRSTAvoidanceDelay(t, timeout)
		t.Logf("set RST avoidance delay to %v", timeout)

		const bodySize = 5 << 20
		req := []byte(fmt.Sprintf("POST / HTTP/1.1\r\nHost: foo.com\r\nContent-Length: %d\r\n\r\n", bodySize))
		for i := 0; i < bodySize; i++ {
			req = append(req, 'x')
		}

		cst := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {

    val recordedRequest = server.takeRequest()
    assertThat(recordedRequest.bodySize).isEqualTo(1048576)
    assertThat(recordedRequest.chunkSizes).isNotEmpty()
  }

  @Test
  fun uploadBodyLargeChunkedEncoding() {
    upload(true, 1048576, 65536)
    val recordedRequest = server.takeRequest()
    assertThat(recordedRequest.bodySize).isEqualTo(1048576)
    assertThat(recordedRequest.chunkSizes).isNotEmpty()
  }

			io.Copy(io.Discard, conn)
			copying.Done()
		}()
	})).ts
	c := ts.Client()

	const bodySize = 256 << 10
	finalBit := make(byteFromChanReader, 1)
	req, _ := NewRequest("POST", ts.URL, io.MultiReader(io.LimitReader(neverEnding('x'), bodySize-1), finalBit))
	req.ContentLength = bodySize
	res, err := c.Do(req)
	if err := wantBody(res, err, "foo"); err != nil {
		t.Errorf("POST response: %v", err)
	}