twisted/internet/test/test_pollingfile.py

   1 # Copyright (c) Twisted Matrix Laboratories.
   2 # See LICENSE for details.
   3
   4 """
   5 Tests for L{twisted.internet._pollingfile}.
   6 """
   7
   8 from twisted.python.runtime import platform
   9 from twisted.trial.unittest import TestCase
  10
  11 if platform.isWindows():
  12     from twisted.internet import _pollingfile
  13 else:
  14     _pollingfile = None
  15
  16
  17
  18 class TestPollableWritePipe(TestCase):
  19     """
  20     Tests for L{_pollingfile._PollableWritePipe}.
  21     """
  22
  23     def test_writeUnicode(self):
  24         """
  25         L{_pollingfile._PollableWritePipe.write} raises a C{TypeError} if an
  26         attempt is made to append unicode data to the output buffer.
  27         """
  28         p = _pollingfile._PollableWritePipe(1, lambda: None)
  29         self.assertRaises(TypeError, p.write, u"test")
  30
  31
  32     def test_writeSequenceUnicode(self):
  33         """
  34         L{_pollingfile._PollableWritePipe.writeSequence} raises a C{TypeError}
  35         if unicode data is part of the data sequence to be appended to the
  36         output buffer.
  37         """
  38         p = _pollingfile._PollableWritePipe(1, lambda: None)
  39         self.assertRaises(TypeError, p.writeSequence, [u"test"])
  40         self.assertRaises(TypeError, p.writeSequence, (u"test", ))
  41
  42
  43
  44
  45 if _pollingfile is None:
  46     TestPollableWritePipe.skip = "Test will run only on Windows."