/** Confirm that an unacknowledged write times out.  */
  @Test
  fun writeTimeouts() {
    val server = MockWebServer()
    // Sockets on some platforms can have large buffers that mean writes do not block when
    // required. These socket factories explicitly set the buffer sizes on sockets created.
    val socketBufferSize = 4 * 1024
    server.serverSocketFactory =
      object : DelegatingServerSocketFactory(getDefault()) {

  }

  @Test
  fun postWithFileNotFound() {
    val called = AtomicInteger(0)
    val body: RequestBody =
      object : RequestBody() {
        override fun contentType(): MediaType = "application/octet-stream".toMediaType()

        override fun writeTo(sink: BufferedSink) {
          called.incrementAndGet()
          throw FileNotFoundException()
        }
      }
    val request =