source.readByte() // If Content-Length was accurate, this would return -1 immediately.
    }
    source.close()
  }

  /** 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.