text: import unittest
  from test import test_support
  
  rfc822 = test_support.import_module("rfc822", deprecated=True)
  
  try:
      from cStringIO import StringIO
  except ImportError:
      from StringIO import StringIO
  
  
  class MessageTestCase(unittest.TestCase):
      def create_message(self, msg):
          return rfc822.Message(StringIO(msg))
  
      def test_get(self):
          msg = self.create_message(
              'To: "last, first" <userid@foo.net>\n\ntest\n')
          self.assert_(msg.get("to") == '"last, first" <userid@foo.net>')
          self.assert_(msg.get("TO") == '"last, first" <userid@foo.net>')
          self.assert_(msg.get("No-Such-Header") is None)
          self.assert_(msg.get("No-Such-Header", "No-Such-Value")
                       == "No-Such-Value")
  
      def test_setdefault(self):
          msg = self.create_message(
              'To: "last, first" <userid@foo.net>\n\ntest\n')
          self.assert_(not msg.has_key("New-Header"))
          self.assert_(msg.setdefault("New-Header", "New-Value") == "New-Value")
          self.assert_(msg.setdefault("New-Header", "Different-Value")
                       == "New-Value")
          self.assert_(msg["new-header"] == "New-Value")
  
          self.assert_(msg.setdefault("Another-Header") == "")
          self.assert_(msg["another-header"] == "")
  
      def check(self, msg, results):
          """Check addresses and the date."""
          m = self.create_message(msg)
          i = 0
          for n, a in m.getaddrlist('to') + m.getaddrlist('cc'):
              try:
                  mn, ma = results[i][0], results[i][1]
              except IndexError:
                  print 'extra parsed address:', repr(n), repr(a)
                  continue
              i = i + 1
              self.assertEqual(mn, n,
                               "Un-expected name: %r != %r" % (mn, n))
              self.assertEqual(ma, a,
                               "Un-expected address: %r != %r" % (ma, a))
              if mn == n and ma == a:
                  pass
              else:
                  print 'not found:', repr(n), repr(a)
  
          out = m.getdate('date')
          if out:
              self.assertEqual(out,
                               (1999, 1, 13, 23, 57, 35, 0, 1, 0),
                               "date conversion failed")
  
  
      # Note: all test cases must have the same date (in various formats),
      # or no date!
  
      def test_basic(self):
          self.check(
              'Date:    Wed, 13 Jan 1999 23:57:35 -0500\n'
              'From:    Guido van Rossum <guido@CNRI.Reston.VA.US>\n'
              'To:      "Guido van\n'
              '\t : Rossum" <guido@python.org>\n'
              'Subject: test2\n'
              '\n'
              'test2\n',
              [('Guido van\n\t : Rossum', 'guido@python.org')])
  
          self.check(
              'From: Barry <bwarsaw@python.org\n'
              'To: guido@python.org (Guido: the Barbarian)\n'
              'Subject: nonsense\n'
              'Date: Wednesday, January 13 1999 23:57:35 -0500\n'
              '\n'
              'test',
              [('Guido: the Barbarian', 'guido@python.org')])
  
          self.check(
              'From: Barry <bwarsaw@python.org\n'
              'To: guido@python.org (Guido: the Barbarian)\n'
              'Cc: "Guido: the Madman" <guido@python.org>\n'
              'Date:  13-Jan-1999 23:57:35 EST\n'
              '\n'
              'test',
              [('Guido: the Barbarian', 'guido@python.org'),
               ('Guido: the Madman', 'guido@python.org')
               ])
  
          self.check(
              'To: "The monster with\n'
              '     the very long name: Guido" <guido@python.org>\n'
              'Date:    Wed, 13 Jan 1999 23:57:35 -0500\n'
              '\n'
              'test',
              [('The monster with\n     the very long name: Guido',
                'guido@python.org')])
  
          self.check(
              'To: "Amit J. Patel" <amitp@Theory.Stanford.EDU>\n'
              'CC: Mike Fletcher <mfletch@vrtelecom.com>,\n'
              '        "\'string-sig@python.org\'" <string-sig@python.org>\n'
              'Cc: fooz@bat.com, bart@toof.com\n'
              'Cc: goit@lip.com\n'
              'Date:    Wed, 13 Jan 1999 23:57:35 -0500\n'
              '\n'
              'test',
              [('Amit J. Patel', 'amitp@Theory.Stanford.EDU'),
               ('Mike Fletcher', 'mfletch@vrtelecom.com'),
               ("'string-sig@python.org'", 'string-sig@python.org'),
               ('', 'fooz@bat.com'),
               ('', 'bart@toof.com'),
               ('', 'goit@lip.com'),
               ])
  
          self.check(
              'To: Some One <someone@dom.ain>\n'
              'From: Anudder Persin <subuddy.else@dom.ain>\n'
              'Date:\n'
              '\n'
              'test',
              [('Some One', 'someone@dom.ain')])
  
          self.check(
              'To: person@dom.ain (User J. Person)\n\n',
              [('User J. Person', 'person@dom.ain')])
  
      def test_doublecomment(self):
          # The RFC allows comments within comments in an email addr
          self.check(
              'To: person@dom.ain ((User J. Person)), John Doe <foo@bar.com>\n\n',
              [('User J. Person', 'person@dom.ain'), ('John Doe', 'foo@bar.com')])
  
      def test_twisted(self):
          # This one is just twisted.  I don't know what the proper
          # result should be, but it shouldn't be to infloop, which is
          # what used to happen!
          self.check(
              'To: <[smtp:dd47@mail.xxx.edu]_at_hmhq@hdq-mdm1-imgout.companay.com>\n'
              'Date:    Wed, 13 Jan 1999 23:57:35 -0500\n'
              '\n'
              'test',
              [('', ''),
               ('', 'dd47@mail.xxx.edu'),
               ('', '_at_hmhq@hdq-mdm1-imgout.companay.com'),
               ])
  
      def test_commas_in_full_name(self):
          # This exercises the old commas-in-a-full-name bug, which
          # should be doing the right thing in recent versions of the
          # module.
          self.check(
              'To: "last, first" <userid@foo.net>\n'
              '\n'
              'test',
              [('last, first', 'userid@foo.net')])
  
      def test_quoted_name(self):
          self.check(
              'To: (Comment stuff) "Quoted name"@somewhere.com\n'
              '\n'
              'test',
              [('Comment stuff', '"Quoted name"@somewhere.com')])
  
      def test_bogus_to_header(self):
          self.check(
              'To: :\n'
              'Cc: goit@lip.com\n'
              'Date:    Wed, 13 Jan 1999 23:57:35 -0500\n'
              '\n'
              'test',
              [('', 'goit@lip.com')])
  
      def test_addr_ipquad(self):
          self.check(
              'To: guido@[132.151.1.21]\n'
              '\n'
              'foo',
              [('', 'guido@[132.151.1.21]')])
  
      def test_iter(self):
          m = rfc822.Message(StringIO(
              'Date:    Wed, 13 Jan 1999 23:57:35 -0500\n'
              'From:    Guido van Rossum <guido@CNRI.Reston.VA.US>\n'
              'To:      "Guido van\n'
              '\t : Rossum" <guido@python.org>\n'
              'Subject: test2\n'
              '\n'
              'test2\n' ))
          self.assertEqual(sorted(m), ['date', 'from', 'subject', 'to'])
  
      def test_rfc2822_phrases(self):
          # RFC 2822 (the update to RFC 822) specifies that dots in phrases are
          # obsolete syntax, which conforming programs MUST recognize but NEVER
          # generate (see $4.1 Miscellaneous obsolete tokens).  This is a
          # departure from RFC 822 which did not allow dots in non-quoted
          # phrases.
          self.check('To: User J. Person <person@dom.ain>\n\n',
                     [('User J. Person', 'person@dom.ain')])
  
      # This takes too long to add to the test suite
  ##    def test_an_excrutiatingly_long_address_field(self):
  ##        OBSCENELY_LONG_HEADER_MULTIPLIER = 10000
  ##        oneaddr = ('Person' * 10) + '@' + ('.'.join(['dom']*10)) + '.com'
  ##        addr = ', '.join([oneaddr] * OBSCENELY_LONG_HEADER_MULTIPLIER)
  ##        lst = rfc822.AddrlistClass(addr).getaddrlist()
  ##        self.assertEqual(len(lst), OBSCENELY_LONG_HEADER_MULTIPLIER)
  
      def test_2getaddrlist(self):
          eq = self.assertEqual
          msg = self.create_message("""\
  To: aperson@dom.ain
  Cc: bperson@dom.ain
  Cc: cperson@dom.ain
  Cc: dperson@dom.ain
  
  A test message.
  """)
          ccs = [('', a) for a in
                 ['bperson@dom.ain', 'cperson@dom.ain', 'dperson@dom.ain']]
          addrs = msg.getaddrlist('cc')
          addrs.sort()
          eq(addrs, ccs)
          # Try again, this one used to fail
          addrs = msg.getaddrlist('cc')
          addrs.sort()
          eq(addrs, ccs)
  
      def test_parseaddr(self):
          eq = self.assertEqual
          eq(rfc822.parseaddr('<>'), ('', ''))
          eq(rfc822.parseaddr('aperson@dom.ain'), ('', 'aperson@dom.ain'))
          eq(rfc822.parseaddr('bperson@dom.ain (Bea A. Person)'),
             ('Bea A. Person', 'bperson@dom.ain'))
          eq(rfc822.parseaddr('Cynthia Person <cperson@dom.ain>'),
             ('Cynthia Person', 'cperson@dom.ain'))
  
      def test_quote_unquote(self):
          eq = self.assertEqual
          eq(rfc822.quote('foo\\wacky"name'), 'foo\\\\wacky\\"name')
          eq(rfc822.unquote('"foo\\\\wacky\\"name"'), 'foo\\wacky"name')
  
  
  def test_main():
      test_support.run_unittest(MessageTestCase)
  
  
  if __name__ == "__main__":
      test_main()
  