657 lines
19 KiB
Python
657 lines
19 KiB
Python
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##############################################################################
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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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# pylint:disable=inherit-non-class,no-method-argument,no-self-argument
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class Test_verifyClass(unittest.TestCase):
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verifier = None
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def setUp(self):
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self.verifier = self._get_FUT()
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@classmethod
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def _get_FUT(cls):
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from zope.interface.verify import verifyClass
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return verifyClass
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def _adjust_object_before_verify(self, x):
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return x
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def _callFUT(self, iface, klass, **kwargs):
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return self.verifier(iface,
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self._adjust_object_before_verify(klass),
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**kwargs)
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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:
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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:
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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():
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"""docstring"""
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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_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():
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"""docstring"""
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@implementer(ICurrent)
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class Current:
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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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"""docstring"""
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class IDerived(IBase):
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pass
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@implementer(IDerived)
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class Current:
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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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"""docstring"""
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class IDerived(IBase):
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pass
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@implementer(IDerived)
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class Current:
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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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"""docstring"""
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@implementer(ICurrent)
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class Current:
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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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"""docstring"""
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@implementer(ICurrent)
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class Current:
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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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"""docstring"""
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@implementer(ICurrent)
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class Current:
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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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"""docstring"""
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@implementer(ICurrent)
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class Current:
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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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"""docstring"""
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@implementer(ICurrent)
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class Current:
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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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"""docstring"""
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@implementer(ICurrent)
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class Current:
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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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"""docstring"""
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@implementer(ICurrent)
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class Current:
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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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"""docstring"""
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@implementer(ICurrent)
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class Current:
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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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"""docstring"""
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@implementer(ICurrent)
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class Current:
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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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"""docstring"""
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@implementer(ICurrent)
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class Current:
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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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"""docstring"""
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@implementer(ICurrent)
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class Current:
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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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"""docstring"""
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@implementer(ICurrent)
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class Current:
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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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"""docstring"""
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@implementer(ICurrent)
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class Current:
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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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"""docstring"""
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@implementer(ICurrent)
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class Current:
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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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"""docstring"""
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@implementer(ICurrent)
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class Current:
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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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"""docstring"""
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@implementer(ICurrent)
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class Current:
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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)
|
||
|
|
class Current:
|
||
|
|
|
||
|
|
def attr(self):
|
||
|
|
raise NotImplementedError()
|
||
|
|
|
||
|
|
self._callFUT(ICurrent, Current)
|
||
|
|
|
||
|
|
def test_class_has_nonmethod_for_method(self):
|
||
|
|
from zope.interface import Interface
|
||
|
|
from zope.interface import implementer
|
||
|
|
from zope.interface.exceptions import BrokenMethodImplementation
|
||
|
|
|
||
|
|
class ICurrent(Interface):
|
||
|
|
def method():
|
||
|
|
"""docstring"""
|
||
|
|
|
||
|
|
@implementer(ICurrent)
|
||
|
|
class Current:
|
||
|
|
method = 1
|
||
|
|
|
||
|
|
self.assertRaises(BrokenMethodImplementation,
|
||
|
|
self._callFUT, ICurrent, Current)
|
||
|
|
|
||
|
|
def test_class_has_attribute_for_attribute(self):
|
||
|
|
from zope.interface import Attribute
|
||
|
|
from zope.interface import Interface
|
||
|
|
from zope.interface import implementer
|
||
|
|
|
||
|
|
class ICurrent(Interface):
|
||
|
|
attr = Attribute("The foo Attribute")
|
||
|
|
|
||
|
|
@implementer(ICurrent)
|
||
|
|
class Current:
|
||
|
|
|
||
|
|
attr = 1
|
||
|
|
|
||
|
|
self._callFUT(ICurrent, Current)
|
||
|
|
|
||
|
|
def test_class_misses_attribute_for_attribute(self):
|
||
|
|
# This check *passes* for verifyClass
|
||
|
|
from zope.interface import Attribute
|
||
|
|
from zope.interface import Interface
|
||
|
|
from zope.interface import implementer
|
||
|
|
|
||
|
|
class ICurrent(Interface):
|
||
|
|
attr = Attribute("The foo Attribute")
|
||
|
|
|
||
|
|
@implementer(ICurrent)
|
||
|
|
class Current:
|
||
|
|
pass
|
||
|
|
|
||
|
|
self._callFUT(ICurrent, Current)
|
||
|
|
|
||
|
|
def test_w_callable_non_func_method(self):
|
||
|
|
from zope.interface import Interface
|
||
|
|
from zope.interface import implementer
|
||
|
|
from zope.interface.interface import Method
|
||
|
|
|
||
|
|
class QuasiMethod(Method):
|
||
|
|
def __call__(self, *args, **kw):
|
||
|
|
raise NotImplementedError()
|
||
|
|
|
||
|
|
class QuasiCallable:
|
||
|
|
def __call__(self, *args, **kw):
|
||
|
|
raise NotImplementedError()
|
||
|
|
|
||
|
|
class ICurrent(Interface):
|
||
|
|
attr = QuasiMethod('This is callable')
|
||
|
|
|
||
|
|
@implementer(ICurrent)
|
||
|
|
class Current:
|
||
|
|
attr = QuasiCallable()
|
||
|
|
|
||
|
|
self._callFUT(ICurrent, Current)
|
||
|
|
|
||
|
|
def test_w_decorated_method(self):
|
||
|
|
from zope.interface import Interface
|
||
|
|
from zope.interface import implementer
|
||
|
|
|
||
|
|
def decorator(func):
|
||
|
|
# this is, in fact, zope.proxy.non_overridable
|
||
|
|
return property(lambda self: func.__get__(self))
|
||
|
|
|
||
|
|
class ICurrent(Interface):
|
||
|
|
|
||
|
|
def method(a):
|
||
|
|
"""docstring"""
|
||
|
|
|
||
|
|
@implementer(ICurrent)
|
||
|
|
class Current:
|
||
|
|
|
||
|
|
@decorator
|
||
|
|
def method(self, a):
|
||
|
|
raise NotImplementedError()
|
||
|
|
|
||
|
|
self._callFUT(ICurrent, Current)
|
||
|
|
|
||
|
|
def test_dict_IFullMapping(self):
|
||
|
|
# A dict should be an IFullMapping, but this exposes two
|
||
|
|
# issues. First, on CPython, methods of builtin types are
|
||
|
|
# "method_descriptor" objects, and are harder to introspect.
|
||
|
|
# Second, on PyPy, the signatures can be just plain wrong,
|
||
|
|
# specifying as required arguments that are actually optional.
|
||
|
|
# See https://github.com/zopefoundation/zope.interface/issues/118
|
||
|
|
from zope.interface.common.mapping import IFullMapping
|
||
|
|
self._callFUT(IFullMapping, dict, tentative=True)
|
||
|
|
|
||
|
|
def test_list_ISequence(self):
|
||
|
|
# As for test_dict_IFullMapping
|
||
|
|
from zope.interface.common.sequence import ISequence
|
||
|
|
self._callFUT(ISequence, list, tentative=True)
|
||
|
|
|
||
|
|
def test_tuple_IReadSequence(self):
|
||
|
|
# As for test_dict_IFullMapping
|
||
|
|
from zope.interface.common.sequence import IReadSequence
|
||
|
|
self._callFUT(IReadSequence, tuple, tentative=True)
|
||
|
|
|
||
|
|
def test_multiple_invalid(self):
|
||
|
|
from zope.interface import Interface
|
||
|
|
from zope.interface import classImplements
|
||
|
|
from zope.interface.exceptions import BrokenImplementation
|
||
|
|
from zope.interface.exceptions import DoesNotImplement
|
||
|
|
from zope.interface.exceptions import MultipleInvalid
|
||
|
|
|
||
|
|
class ISeveralMethods(Interface):
|
||
|
|
def meth1(arg1):
|
||
|
|
"Method 1"
|
||
|
|
def meth2(arg1):
|
||
|
|
"Method 2"
|
||
|
|
|
||
|
|
class SeveralMethods:
|
||
|
|
pass
|
||
|
|
|
||
|
|
with self.assertRaises(MultipleInvalid) as exc:
|
||
|
|
self._callFUT(ISeveralMethods, SeveralMethods)
|
||
|
|
|
||
|
|
ex = exc.exception
|
||
|
|
self.assertEqual(3, len(ex.exceptions))
|
||
|
|
self.assertIsInstance(ex.exceptions[0], DoesNotImplement)
|
||
|
|
self.assertIsInstance(ex.exceptions[1], BrokenImplementation)
|
||
|
|
self.assertIsInstance(ex.exceptions[2], BrokenImplementation)
|
||
|
|
|
||
|
|
# If everything else is correct, only the single error is raised
|
||
|
|
# without the wrapper.
|
||
|
|
classImplements(SeveralMethods, ISeveralMethods)
|
||
|
|
SeveralMethods.meth1 = lambda self, arg1: "Hi"
|
||
|
|
|
||
|
|
with self.assertRaises(BrokenImplementation):
|
||
|
|
self._callFUT(ISeveralMethods, SeveralMethods)
|
||
|
|
|
||
|
|
|
||
|
|
class Test_verifyObject(Test_verifyClass):
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def _get_FUT(cls):
|
||
|
|
from zope.interface.verify import verifyObject
|
||
|
|
return verifyObject
|
||
|
|
|
||
|
|
def _adjust_object_before_verify(self, target):
|
||
|
|
if isinstance(target, (type, type(OldSkool))):
|
||
|
|
target = target()
|
||
|
|
return target
|
||
|
|
|
||
|
|
def test_class_misses_attribute_for_attribute(self):
|
||
|
|
# This check *fails* for verifyObject
|
||
|
|
from zope.interface import Attribute
|
||
|
|
from zope.interface import Interface
|
||
|
|
from zope.interface import implementer
|
||
|
|
from zope.interface.exceptions import BrokenImplementation
|
||
|
|
|
||
|
|
class ICurrent(Interface):
|
||
|
|
attr = Attribute("The foo Attribute")
|
||
|
|
|
||
|
|
@implementer(ICurrent)
|
||
|
|
class Current:
|
||
|
|
pass
|
||
|
|
|
||
|
|
self.assertRaises(BrokenImplementation,
|
||
|
|
self._callFUT, ICurrent, Current)
|
||
|
|
|
||
|
|
def test_module_hit(self):
|
||
|
|
from zope.interface.tests import dummy
|
||
|
|
from zope.interface.tests.idummy import IDummyModule
|
||
|
|
|
||
|
|
self._callFUT(IDummyModule, dummy)
|
||
|
|
|
||
|
|
def test_module_miss(self):
|
||
|
|
from zope.interface import Interface
|
||
|
|
from zope.interface.exceptions import DoesNotImplement
|
||
|
|
from zope.interface.tests import dummy
|
||
|
|
|
||
|
|
# same name, different object
|
||
|
|
class IDummyModule(Interface):
|
||
|
|
pass
|
||
|
|
|
||
|
|
self.assertRaises(DoesNotImplement,
|
||
|
|
self._callFUT, IDummyModule, dummy)
|
||
|
|
|
||
|
|
def test_staticmethod_hit_on_class(self):
|
||
|
|
from zope.interface import Interface
|
||
|
|
from zope.interface import provider
|
||
|
|
from zope.interface.verify import verifyObject
|
||
|
|
|
||
|
|
class IFoo(Interface):
|
||
|
|
|
||
|
|
def bar(a, b):
|
||
|
|
"The bar method"
|
||
|
|
|
||
|
|
@provider(IFoo)
|
||
|
|
class Foo:
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def bar(a, b):
|
||
|
|
raise AssertionError("We're never actually called")
|
||
|
|
|
||
|
|
# Don't use self._callFUT, we don't want to instantiate the
|
||
|
|
# class.
|
||
|
|
verifyObject(IFoo, Foo)
|
||
|
|
|
||
|
|
|
||
|
|
class OldSkool:
|
||
|
|
pass
|