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# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.
"""
Whitebox tests for L{twisted.internet.abstract.FileDescriptor}.
"""
from zope.interface.verify import verifyClass
from twisted.internet.abstract import FileDescriptor
from twisted.internet.interfaces import IPushProducer
from twisted.trial.unittest import TestCase
class FileDescriptorTests(TestCase):
"""
Tests for L{FileDescriptor}.
"""
def test_writeWithUnicodeRaisesException(self):
"""
L{FileDescriptor.write} doesn't accept unicode data.
"""
fileDescriptor = FileDescriptor()
self.assertRaises(TypeError, fileDescriptor.write, u'foo')
def test_writeSequenceWithUnicodeRaisesException(self):
"""
L{FileDescriptor.writeSequence} doesn't accept unicode data.
"""
fileDescriptor = FileDescriptor()
self.assertRaises(
TypeError, fileDescriptor.writeSequence, ['foo', u'bar', 'baz'])
def test_implementInterfaceIPushProducer(self):
"""
L{FileDescriptor} should implement L{IPushProducer}.
"""
self.assertTrue(verifyClass(IPushProducer, FileDescriptor))
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