582 lines
16 KiB
Python
582 lines
16 KiB
Python
##############################################################################
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#
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# Copyright (c) 2001, 2002 Zope Foundation and Contributors.
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# All Rights Reserved.
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#
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# This software is subject to the provisions of the Zope Public License,
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# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
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# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
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# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
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# FOR A PARTICULAR PURPOSE.
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#
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##############################################################################
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""" zope.interface.verify unit tests
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"""
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import unittest
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class Test_verifyClass(unittest.TestCase):
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def _callFUT(self, iface, klass):
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from zope.interface.verify import verifyClass
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return verifyClass(iface, klass)
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def test_class_doesnt_implement(self):
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from zope.interface import Interface
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from zope.interface.exceptions import DoesNotImplement
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class ICurrent(Interface):
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pass
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class Current(object):
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pass
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self.assertRaises(DoesNotImplement, self._callFUT, ICurrent, Current)
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def test_class_doesnt_implement_but_classImplements_later(self):
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from zope.interface import Interface
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from zope.interface import classImplements
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class ICurrent(Interface):
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pass
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class Current(object):
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pass
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classImplements(Current, ICurrent)
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self._callFUT(ICurrent, Current)
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def test_class_doesnt_have_required_method_simple(self):
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from zope.interface import Interface
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from zope.interface import implementer
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from zope.interface.exceptions import BrokenImplementation
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class ICurrent(Interface):
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def method(): pass
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@implementer(ICurrent)
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class Current(object):
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pass
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self.assertRaises(BrokenImplementation,
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self._callFUT, ICurrent, Current)
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def test_class_has_required_method_simple(self):
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from zope.interface import Interface
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from zope.interface import implementer
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class ICurrent(Interface):
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def method(): pass
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@implementer(ICurrent)
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class Current(object):
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def method(self):
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raise NotImplementedError()
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self._callFUT(ICurrent, Current)
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def test_class_doesnt_have_required_method_derived(self):
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from zope.interface import Interface
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from zope.interface import implementer
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from zope.interface.exceptions import BrokenImplementation
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class IBase(Interface):
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def method():
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pass
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class IDerived(IBase):
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pass
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@implementer(IDerived)
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class Current(object):
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pass
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self.assertRaises(BrokenImplementation,
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self._callFUT, IDerived, Current)
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def test_class_has_required_method_derived(self):
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from zope.interface import Interface
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from zope.interface import implementer
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class IBase(Interface):
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def method():
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pass
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class IDerived(IBase):
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pass
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@implementer(IDerived)
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class Current(object):
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def method(self):
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raise NotImplementedError()
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self._callFUT(IDerived, Current)
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def test_method_takes_wrong_arg_names_but_OK(self):
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# We no longer require names to match.
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from zope.interface import Interface
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from zope.interface import implementer
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class ICurrent(Interface):
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def method(a):
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pass
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@implementer(ICurrent)
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class Current(object):
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def method(self, b):
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raise NotImplementedError()
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self._callFUT(ICurrent, Current)
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def test_method_takes_not_enough_args(self):
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from zope.interface import Interface
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from zope.interface import implementer
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from zope.interface.exceptions import BrokenMethodImplementation
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class ICurrent(Interface):
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def method(a):
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pass
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@implementer(ICurrent)
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class Current(object):
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def method(self):
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raise NotImplementedError()
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self.assertRaises(BrokenMethodImplementation,
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self._callFUT, ICurrent, Current)
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def test_method_doesnt_take_required_starargs(self):
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from zope.interface import Interface
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from zope.interface import implementer
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from zope.interface.exceptions import BrokenMethodImplementation
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class ICurrent(Interface):
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def method(*args):
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pass
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@implementer(ICurrent)
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class Current(object):
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def method(self):
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raise NotImplementedError()
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self.assertRaises(BrokenMethodImplementation,
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self._callFUT, ICurrent, Current)
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def test_method_doesnt_take_required_only_kwargs(self):
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from zope.interface import Interface
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from zope.interface import implementer
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from zope.interface.exceptions import BrokenMethodImplementation
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class ICurrent(Interface):
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def method(**kw):
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pass
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@implementer(ICurrent)
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class Current(object):
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def method(self):
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raise NotImplementedError()
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self.assertRaises(BrokenMethodImplementation,
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self._callFUT, ICurrent, Current)
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def test_method_takes_extra_arg(self):
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from zope.interface import Interface
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from zope.interface import implementer
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from zope.interface.exceptions import BrokenMethodImplementation
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class ICurrent(Interface):
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def method(a):
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pass
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@implementer(ICurrent)
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class Current(object):
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def method(self, a, b):
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raise NotImplementedError()
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self.assertRaises(BrokenMethodImplementation,
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self._callFUT, ICurrent, Current)
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def test_method_takes_extra_arg_with_default(self):
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from zope.interface import Interface
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from zope.interface import implementer
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class ICurrent(Interface):
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def method(a):
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pass
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@implementer(ICurrent)
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class Current(object):
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def method(self, a, b=None):
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raise NotImplementedError()
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self._callFUT(ICurrent, Current)
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def test_method_takes_only_positional_args(self):
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from zope.interface import Interface
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from zope.interface import implementer
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class ICurrent(Interface):
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def method(a):
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pass
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@implementer(ICurrent)
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class Current(object):
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def method(self, *args):
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raise NotImplementedError()
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self._callFUT(ICurrent, Current)
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def test_method_takes_only_kwargs(self):
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from zope.interface import Interface
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from zope.interface import implementer
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from zope.interface.exceptions import BrokenMethodImplementation
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class ICurrent(Interface):
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def method(a):
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pass
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@implementer(ICurrent)
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class Current(object):
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def method(self, **kw):
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raise NotImplementedError()
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self.assertRaises(BrokenMethodImplementation,
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self._callFUT, ICurrent, Current)
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def test_method_takes_extra_starargs(self):
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from zope.interface import Interface
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from zope.interface import implementer
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class ICurrent(Interface):
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def method(a):
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pass
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@implementer(ICurrent)
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class Current(object):
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def method(self, a, *args):
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raise NotImplementedError()
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self._callFUT(ICurrent, Current)
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def test_method_takes_extra_starargs_and_kwargs(self):
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from zope.interface import Interface
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from zope.interface import implementer
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class ICurrent(Interface):
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def method(a):
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pass
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@implementer(ICurrent)
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class Current(object):
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def method(self, a, *args, **kw):
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raise NotImplementedError()
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self._callFUT(ICurrent, Current)
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def test_method_doesnt_take_required_positional_and_starargs(self):
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from zope.interface import Interface
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from zope.interface import implementer
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from zope.interface.exceptions import BrokenMethodImplementation
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class ICurrent(Interface):
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def method(a, *args):
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pass
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@implementer(ICurrent)
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class Current(object):
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def method(self, a):
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raise NotImplementedError()
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self.assertRaises(BrokenMethodImplementation,
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self._callFUT, ICurrent, Current)
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def test_method_takes_required_positional_and_starargs(self):
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from zope.interface import Interface
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from zope.interface import implementer
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class ICurrent(Interface):
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def method(a, *args):
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pass
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@implementer(ICurrent)
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class Current(object):
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def method(self, a, *args):
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raise NotImplementedError()
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self._callFUT(ICurrent, Current)
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def test_method_takes_only_starargs(self):
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from zope.interface import Interface
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from zope.interface import implementer
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class ICurrent(Interface):
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def method(a, *args):
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pass
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@implementer(ICurrent)
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class Current(object):
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def method(self, *args):
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raise NotImplementedError()
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self._callFUT(ICurrent, Current)
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def test_method_takes_required_kwargs(self):
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from zope.interface import Interface
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from zope.interface import implementer
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class ICurrent(Interface):
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def method(**kwargs):
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pass
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@implementer(ICurrent)
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class Current(object):
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def method(self, **kw):
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raise NotImplementedError()
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self._callFUT(ICurrent, Current)
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def test_method_takes_positional_plus_required_starargs(self):
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from zope.interface import Interface
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from zope.interface import implementer
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from zope.interface.exceptions import BrokenMethodImplementation
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class ICurrent(Interface):
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def method(*args):
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pass
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@implementer(ICurrent)
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class Current(object):
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def method(self, a, *args):
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raise NotImplementedError()
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self.assertRaises(BrokenMethodImplementation,
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self._callFUT, ICurrent, Current)
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def test_method_doesnt_take_required_kwargs(self):
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from zope.interface import Interface
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from zope.interface import implementer
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from zope.interface.exceptions import BrokenMethodImplementation
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class ICurrent(Interface):
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def method(**kwargs):
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pass
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@implementer(ICurrent)
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class Current(object):
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def method(self, a):
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raise NotImplementedError()
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self.assertRaises(BrokenMethodImplementation,
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self._callFUT, ICurrent, Current)
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def test_class_has_method_for_iface_attr(self):
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from zope.interface import Attribute
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from zope.interface import Interface
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from zope.interface import implementer
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class ICurrent(Interface):
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attr = Attribute("The foo Attribute")
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@implementer(ICurrent)
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class Current:
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def attr(self):
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raise NotImplementedError()
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self._callFUT(ICurrent, Current)
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def test_class_has_nonmethod_for_method(self):
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from zope.interface import Interface
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from zope.interface import implementer
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from zope.interface.exceptions import BrokenMethodImplementation
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class ICurrent(Interface):
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def method():
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pass
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@implementer(ICurrent)
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class Current:
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method = 1
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self.assertRaises(BrokenMethodImplementation,
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self._callFUT, ICurrent, Current)
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def test_class_has_attribute_for_attribute(self):
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from zope.interface import Attribute
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from zope.interface import Interface
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from zope.interface import implementer
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class ICurrent(Interface):
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attr = Attribute("The foo Attribute")
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@implementer(ICurrent)
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class Current:
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attr = 1
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self._callFUT(ICurrent, Current)
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def test_class_misses_attribute_for_attribute(self):
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# This check *passes* for verifyClass
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from zope.interface import Attribute
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from zope.interface import Interface
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from zope.interface import implementer
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class ICurrent(Interface):
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attr = Attribute("The foo Attribute")
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@implementer(ICurrent)
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class Current:
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pass
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self._callFUT(ICurrent, Current)
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def test_w_callable_non_func_method(self):
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from zope.interface.interface import Method
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from zope.interface import Interface
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from zope.interface import implementer
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class QuasiMethod(Method):
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def __call__(self, *args, **kw):
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raise NotImplementedError()
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class QuasiCallable(object):
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def __call__(self, *args, **kw):
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raise NotImplementedError()
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class ICurrent(Interface):
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attr = QuasiMethod('This is callable')
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@implementer(ICurrent)
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class Current:
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attr = QuasiCallable()
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self._callFUT(ICurrent, Current)
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def test_w_decorated_method(self):
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from zope.interface import Interface
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from zope.interface import implementer
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def decorator(func):
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# this is, in fact, zope.proxy.non_overridable
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return property(lambda self: func.__get__(self))
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class ICurrent(Interface):
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def method(a):
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pass
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@implementer(ICurrent)
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class Current(object):
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@decorator
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def method(self, a):
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raise NotImplementedError()
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self._callFUT(ICurrent, Current)
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class Test_verifyObject(Test_verifyClass):
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def _callFUT(self, iface, target):
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from zope.interface.verify import verifyObject
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if isinstance(target, (type, type(OldSkool))):
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target = target()
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return verifyObject(iface, target)
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def test_class_misses_attribute_for_attribute(self):
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# This check *fails* for verifyObject
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from zope.interface import Attribute
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from zope.interface import Interface
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from zope.interface import implementer
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from zope.interface.exceptions import BrokenImplementation
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class ICurrent(Interface):
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attr = Attribute("The foo Attribute")
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@implementer(ICurrent)
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class Current:
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pass
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self.assertRaises(BrokenImplementation,
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self._callFUT, ICurrent, Current)
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def test_module_hit(self):
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from zope.interface.tests.idummy import IDummyModule
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from zope.interface.tests import dummy
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self._callFUT(IDummyModule, dummy)
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def test_module_miss(self):
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from zope.interface import Interface
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from zope.interface.tests import dummy
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from zope.interface.exceptions import DoesNotImplement
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# same name, different object
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class IDummyModule(Interface):
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pass
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self.assertRaises(DoesNotImplement,
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self._callFUT, IDummyModule, dummy)
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def test_staticmethod_hit_on_class(self):
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from zope.interface import Interface
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from zope.interface import provider
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from zope.interface.verify import verifyObject
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class IFoo(Interface):
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def bar(a, b):
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"The bar method"
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@provider(IFoo)
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class Foo(object):
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@staticmethod
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def bar(a, b):
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raise AssertionError("We're never actually called")
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# Don't use self._callFUT, we don't want to instantiate the
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# class.
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verifyObject(IFoo, Foo)
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class OldSkool:
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pass
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