buf.readShort() // query id

    val flags = buf.readShort().toInt() and 0xffff
    require(flags shr 15 != 0) { "not a response" }

    val responseCode = flags and 0xf

    if (responseCode == NXDOMAIN) {
      throw UnknownHostException("$hostname: NXDOMAIN")
    } else if (responseCode == SERVFAIL) {
      throw UnknownHostException("$hostname: SERVFAIL")
    }

    val questionCount = buf.readShort().toInt() and 0xffff

    val text =
      conn.inputStream.use {
        it.bufferedReader().readText()
      }

    assertEquals(200, conn.responseCode)

    assertTrue(text.contains("Disallow"))
  }

          .hostnameVerifier(hostnameVerifier)
          .build()
    }
    val responseOne =
      MockResponse.Builder()
        .addHeader("Content-Encoding: gzip")
    transferKind.setBody(responseOne, gzip("one (gzipped)"), 5)
    server.enqueue(responseOne.build())
    val responseTwo = MockResponse.Builder()
    transferKind.setBody(responseTwo, "two (identity)", 5)

  private fun assertCached(
    shouldWriteToCache: Boolean,
    responseCode: Int,
  ) {
    var expectedResponseCode = responseCode
    server = MockWebServer()
    val builder =
      MockResponse.Builder()
        .addHeader("Last-Modified: " + formatDate(-1, TimeUnit.HOURS))
        .addHeader("Expires: " + formatDate(1, TimeUnit.HOURS))
        .code(responseCode)
        .body("ABCDE")