new_contents: # -*- coding: utf-8 -*-
  """Tests for email generation."""
  
  from __future__ import unicode_literals
  
  from future.backports.email.mime.multipart import MIMEMultipart
  from future.backports.email.mime.text import MIMEText
  from future.backports.email.utils import formatdate
  from future.tests.base import unittest
  
  
  class EmailGenerationTests(unittest.TestCase):
      def test_email_custom_header_can_contain_unicode(self):
          msg = MIMEMultipart()
          alternative = MIMEMultipart('alternative')
          alternative.attach(MIMEText('Plain content with Únicødê', _subtype='plain', _charset='utf-8'))
          alternative.attach(MIMEText('HTML content with Únicødê', _subtype='html', _charset='utf-8'))
          msg.attach(alternative)
  
          msg['Subject'] = 'Subject with Únicødê'
          msg['From'] = 'sender@test.com'
          msg['To'] = 'recipient@test.com'
          msg['Date'] = formatdate(None, localtime=True)
          msg['Message-ID'] = 'anIdWithÚnicødêForThisEmail'
  
          msg_lines = msg.as_string().split('\n')
          self.assertEqual(msg_lines[2], 'Subject: =?utf-8?b?U3ViamVjdCB3aXRoIMOabmljw7hkw6o=?=')
          self.assertEqual(msg_lines[6], 'Message-ID: =?utf-8?b?YW5JZFdpdGjDmm5pY8O4ZMOqRm9yVGhpc0VtYWls?=')
          self.assertEqual(msg_lines[17], 'UGxhaW4gY29udGVudCB3aXRoIMOabmljw7hkw6o=')
          self.assertEqual(msg_lines[24], 'SFRNTCBjb250ZW50IHdpdGggw5puaWPDuGTDqg==')
  
subject: Add a test for our fix