assertThat(request.headers["Content-Length"]!!.toInt()).isEqualTo(postBytes.size)
  }

  @ParameterizedTest
  @ArgumentsSource(ProtocolParamProvider::class)
  fun closeAfterFlush(protocol: Protocol) {
    setUp(protocol)
    val postBytes = "FGHIJ".toByteArray()
    server.enqueue(MockResponse(body = "ABCDE"))
    val call =
      client.newCall(
        Request(