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33 lines
1.2 KiB
Python
33 lines
1.2 KiB
Python
"""
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Tests to check for Python2 regressions
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"""
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from twisted.trial import unittest
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from twisted.python.modules import getModule
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class PythonTwoRegressions(unittest.TestCase):
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"""
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A test class to hold Python2 regression tests.
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"""
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skip = "https://tahoe-lafs.org/trac/tahoe-lafs/ticket/3239"
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def is_new_style(self, cls):
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"""check for being a new-style class"""
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# another test could be: issubclass(value, type)
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has_class_attr = hasattr(cls, '__class__')
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dict_or_slots = '__dict__' in dir(cls) or hasattr(cls, '__slots__')
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return has_class_attr and dict_or_slots
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def test_old_style_class(self):
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"""
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Check if all classes are new-style classes
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"""
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for mod in getModule("allmydata").walkModules():
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for attr in mod.iterAttributes():
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value = attr.load()
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if isinstance(value, str):
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# apparently strings are note a new-style class (in Python 2.7)
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# so we skip testing them
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return
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self.assertTrue(self.is_new_style(value),
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"{} does not seem to be a new-style class".format(attr.name))
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