old_contents: # Simple test creating an SSL connection and transferring some data
  # This test won't run under CPython because it requires key/cert
  
  import usocket as socket, ussl as ssl
  
  PORT = 8000
  
  
  # Server
  def instance0():
      multitest.globals(IP=multitest.get_network_ip())
      s = socket.socket()
      s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
      s.bind(socket.getaddrinfo("0.0.0.0", PORT)[0][-1])
      s.listen(1)
      multitest.next()
      s2, _ = s.accept()
      s2 = ssl.wrap_socket(s2, server_side=True)
      print(s2.read(16))
      s2.write(b"server to client")
      s.close()
  
  
  # Client
  def instance1():
      multitest.next()
      s = socket.socket()
      s.connect(socket.getaddrinfo(IP, PORT)[0][-1])
      s = ssl.wrap_socket(s)
      s.write(b"client to server")
      print(s.read(16))
      s.close()
  
new_contents: # Simple test creating an SSL connection and transferring some data
  # This test won't run under CPython because it requires key/cert
  
  import usocket as socket, ussl as ssl
  import ubinascii
  
  PORT = 8000
  
  
  # This self-signed key/cert pair is randomly generated and to be used for
  # testing/demonstration only.  You should always generate your own key/cert.
  key = ubinascii.unhexlify(
      b"3082013b020100024100cc20643fd3d9c21a0acba4f48f61aadd675f52175a9dcf07fbef"
      b"610a6a6ba14abb891745cd18a1d4c056580d8ff1a639460f867013c8391cdc9f2e573b0f"
      b"872d0203010001024100bb17a54aeb3dd7ae4edec05e775ca9632cf02d29c2a089b563b0"
      b"d05cdf95aeca507de674553f28b4eadaca82d5549a86058f9996b07768686a5b02cb240d"
      b"d9f1022100f4a63f5549e817547dca97b5c658038e8593cb78c5aba3c4642cc4cd031d86"
      b"8f022100d598d870ffe4a34df8de57047a50b97b71f4d23e323f527837c9edae88c79483"
      b"02210098560c89a70385c36eb07fd7083235c4c1184e525d838aedf7128958bedfdbb102"
      b"2051c0dab7057a8176ca966f3feb81123d4974a733df0f958525f547dfd1c271f9022044"
      b"6c2cafad455a671a8cf398e642e1be3b18a3d3aec2e67a9478f83c964c4f1f"
  )
  cert = ubinascii.unhexlify(
      b"308201d53082017f020203e8300d06092a864886f70d01010505003075310b3009060355"
      b"0406130258583114301206035504080c0b54686550726f76696e63653110300e06035504"
      b"070c075468654369747931133011060355040a0c0a436f6d70616e7958595a3113301106"
      b"0355040b0c0a436f6d70616e7958595a3114301206035504030c0b546865486f73744e61"
      b"6d65301e170d3139313231383033333935355a170d3239313231353033333935355a3075"
      b"310b30090603550406130258583114301206035504080c0b54686550726f76696e636531"
      b"10300e06035504070c075468654369747931133011060355040a0c0a436f6d70616e7958"
      b"595a31133011060355040b0c0a436f6d70616e7958595a3114301206035504030c0b5468"
      b"65486f73744e616d65305c300d06092a864886f70d0101010500034b003048024100cc20"
      b"643fd3d9c21a0acba4f48f61aadd675f52175a9dcf07fbef610a6a6ba14abb891745cd18"
      b"a1d4c056580d8ff1a639460f867013c8391cdc9f2e573b0f872d0203010001300d06092a"
      b"864886f70d0101050500034100b0513fe2829e9ecbe55b6dd14c0ede7502bde5d46153c8"
      b"e960ae3ebc247371b525caeb41bbcf34686015a44c50d226e66aef0a97a63874ca5944ef"
      b"979b57f0b3"
  )
  
  # Server
  def instance0():
      ctx = ssl.SSLContext()
      ctx.set_cert_key(cert, key)
      multitest.globals(IP=multitest.get_network_ip())
      s = socket.socket()
      s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
      s.bind(socket.getaddrinfo("0.0.0.0", PORT)[0][-1])
      s.listen(1)
      multitest.next()
      s2, _ = s.accept()
      s2 = ctx.wrap_socket(s2, server_side=True)
      print(s2.read(16))
      s2.write(b"server to client")
      s.close()
  
  
  # Client
  def instance1():
      multitest.next()
      ctx = ssl.SSLContext()
      s = socket.socket()
      s.connect(socket.getaddrinfo(IP, PORT)[0][-1])
      s = ctx.wrap_socket(s)
      s.write(b"client to server")
      print(s.read(16))
      s.close()
  
subject: Update for ussl.SSLContext.