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# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.
"""
Tests for L{twisted.internet._pollingfile}.
"""
from unittest import skipIf
from twisted.python.runtime import platform
from twisted.trial.unittest import TestCase
if platform.isWindows():
from twisted.internet import _pollingfile
else:
_pollingfile = None # type: ignore[assignment]
@skipIf(_pollingfile is None, "Test will run only on Windows.")
class PollableWritePipeTests(TestCase):
"""
Tests for L{_pollingfile._PollableWritePipe}.
"""
def test_writeUnicode(self):
"""
L{_pollingfile._PollableWritePipe.write} raises a C{TypeError} if an
attempt is made to append unicode data to the output buffer.
"""
p = _pollingfile._PollableWritePipe(1, lambda: None)
self.assertRaises(TypeError, p.write, "test")
def test_writeSequenceUnicode(self):
"""
L{_pollingfile._PollableWritePipe.writeSequence} raises a C{TypeError}
if unicode data is part of the data sequence to be appended to the
output buffer.
"""
p = _pollingfile._PollableWritePipe(1, lambda: None)
self.assertRaises(TypeError, p.writeSequence, ["test"])
self.assertRaises(TypeError, p.writeSequence, ("test",))