new_contents: # Copyright (c) 2020, Frappe Technologies Pvt. Ltd. and Contributors
  # License: The MIT License
  
  import unittest
  from frappe.email.smtp import SMTPServer
  
  class TestSMTP(unittest.TestCase):
  	def test_smtp_ssl_session(self):
  		for port in [None, 0, 465, "465"]:
  			make_server(port, 1, 0)
  
  	def test_smtp_tls_session(self):
  		for port in [None, 0, 587, "587"]:
  			make_server(port, 0, 1)
  
  
  def make_server(port, ssl, tls):
  	server = SMTPServer(
  		server = "smtp.gmail.com",
  		port = port,
  		use_ssl = ssl,
  		use_tls = tls
  	)
  
  	server.sess
subject: add tests