1 files changed, 656 insertions, 0 deletions
diff --git a/contrib/python/zope.interface/py2/zope/interface/tests/test_verify.py b/contrib/python/zope.interface/py2/zope/interface/tests/test_verify.py
new file mode 100644
index 0000000000..bb7bb4a95e
--- /dev/null
+++ b/contrib/python/zope.interface/py2/zope/interface/tests/test_verify.py
@@ -0,0 +1,656 @@
+##############################################################################
+#
+# Copyright (c) 2001, 2002 Zope Foundation and Contributors.
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+##############################################################################
+""" zope.interface.verify unit tests
+"""
+import unittest
+
+# pylint:disable=inherit-non-class,no-method-argument,no-self-argument
+
+class Test_verifyClass(unittest.TestCase):
+
+    verifier = None
+
+    def setUp(self):
+        self.verifier = self._get_FUT()
+
+    @classmethod
+    def _get_FUT(cls):
+        from zope.interface.verify import verifyClass
+        return verifyClass
+
+    _adjust_object_before_verify = lambda self, x: x
+
+    def _callFUT(self, iface, klass, **kwargs):
+        return self.verifier(iface,
+                             self._adjust_object_before_verify(klass),
+                             **kwargs)
+
+    def test_class_doesnt_implement(self):
+        from zope.interface import Interface
+        from zope.interface.exceptions import DoesNotImplement
+
+        class ICurrent(Interface):
+            pass
+
+        class Current(object):
+            pass
+
+        self.assertRaises(DoesNotImplement, self._callFUT, ICurrent, Current)
+
+    def test_class_doesnt_implement_but_classImplements_later(self):
+        from zope.interface import Interface
+        from zope.interface import classImplements
+
+        class ICurrent(Interface):
+            pass
+
+        class Current(object):
+            pass
+
+        classImplements(Current, ICurrent)
+
+        self._callFUT(ICurrent, Current)
+
+    def test_class_doesnt_have_required_method_simple(self):
+        from zope.interface import Interface
+        from zope.interface import implementer
+        from zope.interface.exceptions import BrokenImplementation
+
+        class ICurrent(Interface):
+            def method():
+                """docstring"""
+
+        @implementer(ICurrent)
+        class Current(object):
+            pass
+
+        self.assertRaises(BrokenImplementation,
+                          self._callFUT, ICurrent, Current)
+
+    def test_class_has_required_method_simple(self):
+        from zope.interface import Interface
+        from zope.interface import implementer
+
+        class ICurrent(Interface):
+            def method():
+                """docstring"""
+
+        @implementer(ICurrent)
+        class Current(object):
+
+            def method(self):
+                raise NotImplementedError()
+
+        self._callFUT(ICurrent, Current)
+
+    def test_class_doesnt_have_required_method_derived(self):
+        from zope.interface import Interface
+        from zope.interface import implementer
+        from zope.interface.exceptions import BrokenImplementation
+
+        class IBase(Interface):
+            def method():
+                """docstring"""
+
+        class IDerived(IBase):
+            pass
+
+        @implementer(IDerived)
+        class Current(object):
+            pass
+
+        self.assertRaises(BrokenImplementation,
+                          self._callFUT, IDerived, Current)
+
+    def test_class_has_required_method_derived(self):
+        from zope.interface import Interface
+        from zope.interface import implementer
+
+        class IBase(Interface):
+            def method():
+                """docstring"""
+
+        class IDerived(IBase):
+            pass
+
+        @implementer(IDerived)
+        class Current(object):
+
+            def method(self):
+                raise NotImplementedError()
+
+        self._callFUT(IDerived, Current)
+
+    def test_method_takes_wrong_arg_names_but_OK(self):
+        # We no longer require names to match.
+        from zope.interface import Interface
+        from zope.interface import implementer
+
+        class ICurrent(Interface):
+
+            def method(a):
+                """docstring"""
+
+        @implementer(ICurrent)
+        class Current(object):
+
+            def method(self, b):
+                raise NotImplementedError()
+
+        self._callFUT(ICurrent, Current)
+
+    def test_method_takes_not_enough_args(self):
+        from zope.interface import Interface
+        from zope.interface import implementer
+        from zope.interface.exceptions import BrokenMethodImplementation
+
+        class ICurrent(Interface):
+
+            def method(a):
+                """docstring"""
+
+        @implementer(ICurrent)
+        class Current(object):
+
+            def method(self):
+                raise NotImplementedError()
+
+        self.assertRaises(BrokenMethodImplementation,
+                          self._callFUT, ICurrent, Current)
+
+    def test_method_doesnt_take_required_starargs(self):
+        from zope.interface import Interface
+        from zope.interface import implementer
+        from zope.interface.exceptions import BrokenMethodImplementation
+
+        class ICurrent(Interface):
+
+            def method(*args):
+                """docstring"""
+
+        @implementer(ICurrent)
+        class Current(object):
+
+            def method(self):
+                raise NotImplementedError()
+
+        self.assertRaises(BrokenMethodImplementation,
+                          self._callFUT, ICurrent, Current)
+
+    def test_method_doesnt_take_required_only_kwargs(self):
+        from zope.interface import Interface
+        from zope.interface import implementer
+        from zope.interface.exceptions import BrokenMethodImplementation
+
+        class ICurrent(Interface):
+
+            def method(**kw):
+                """docstring"""
+
+        @implementer(ICurrent)
+        class Current(object):
+
+            def method(self):
+                raise NotImplementedError()
+
+        self.assertRaises(BrokenMethodImplementation,
+                          self._callFUT, ICurrent, Current)
+
+    def test_method_takes_extra_arg(self):
+        from zope.interface import Interface
+        from zope.interface import implementer
+        from zope.interface.exceptions import BrokenMethodImplementation
+
+        class ICurrent(Interface):
+
+            def method(a):
+                """docstring"""
+
+        @implementer(ICurrent)
+        class Current(object):
+
+            def method(self, a, b):
+                raise NotImplementedError()
+
+        self.assertRaises(BrokenMethodImplementation,
+                          self._callFUT, ICurrent, Current)
+
+    def test_method_takes_extra_arg_with_default(self):
+        from zope.interface import Interface
+        from zope.interface import implementer
+
+        class ICurrent(Interface):
+
+            def method(a):
+                """docstring"""
+
+        @implementer(ICurrent)
+        class Current(object):
+
+            def method(self, a, b=None):
+                raise NotImplementedError()
+
+        self._callFUT(ICurrent, Current)
+
+    def test_method_takes_only_positional_args(self):
+        from zope.interface import Interface
+        from zope.interface import implementer
+
+        class ICurrent(Interface):
+
+            def method(a):
+                """docstring"""
+
+        @implementer(ICurrent)
+        class Current(object):
+
+            def method(self, *args):
+                raise NotImplementedError()
+
+        self._callFUT(ICurrent, Current)
+
+    def test_method_takes_only_kwargs(self):
+        from zope.interface import Interface
+        from zope.interface import implementer
+        from zope.interface.exceptions import BrokenMethodImplementation
+
+        class ICurrent(Interface):
+
+            def method(a):
+                """docstring"""
+
+        @implementer(ICurrent)
+        class Current(object):
+
+            def method(self, **kw):
+                raise NotImplementedError()
+
+        self.assertRaises(BrokenMethodImplementation,
+                          self._callFUT, ICurrent, Current)
+
+    def test_method_takes_extra_starargs(self):
+        from zope.interface import Interface
+        from zope.interface import implementer
+
+        class ICurrent(Interface):
+
+            def method(a):
+                """docstring"""
+
+        @implementer(ICurrent)
+        class Current(object):
+
+            def method(self, a, *args):
+                raise NotImplementedError()
+
+        self._callFUT(ICurrent, Current)
+
+    def test_method_takes_extra_starargs_and_kwargs(self):
+        from zope.interface import Interface
+        from zope.interface import implementer
+
+        class ICurrent(Interface):
+
+            def method(a):
+                """docstring"""
+
+        @implementer(ICurrent)
+        class Current(object):
+
+            def method(self, a, *args, **kw):
+                raise NotImplementedError()
+
+        self._callFUT(ICurrent, Current)
+
+    def test_method_doesnt_take_required_positional_and_starargs(self):
+        from zope.interface import Interface
+        from zope.interface import implementer
+        from zope.interface.exceptions import BrokenMethodImplementation
+
+        class ICurrent(Interface):
+
+            def method(a, *args):
+                """docstring"""
+
+        @implementer(ICurrent)
+        class Current(object):
+
+            def method(self, a):
+                raise NotImplementedError()
+
+        self.assertRaises(BrokenMethodImplementation,
+                          self._callFUT, ICurrent, Current)
+
+    def test_method_takes_required_positional_and_starargs(self):
+        from zope.interface import Interface
+        from zope.interface import implementer
+
+        class ICurrent(Interface):
+
+            def method(a, *args):
+                """docstring"""
+
+        @implementer(ICurrent)
+        class Current(object):
+
+            def method(self, a, *args):
+                raise NotImplementedError()
+
+        self._callFUT(ICurrent, Current)
+
+    def test_method_takes_only_starargs(self):
+        from zope.interface import Interface
+        from zope.interface import implementer
+
+        class ICurrent(Interface):
+
+            def method(a, *args):
+                """docstring"""
+
+        @implementer(ICurrent)
+        class Current(object):
+
+            def method(self, *args):
+                raise NotImplementedError()
+
+        self._callFUT(ICurrent, Current)
+
+    def test_method_takes_required_kwargs(self):
+        from zope.interface import Interface
+        from zope.interface import implementer
+
+        class ICurrent(Interface):
+
+            def method(**kwargs):
+                """docstring"""
+
+        @implementer(ICurrent)
+        class Current(object):
+
+            def method(self, **kw):
+                raise NotImplementedError()
+
+        self._callFUT(ICurrent, Current)
+
+    def test_method_takes_positional_plus_required_starargs(self):
+        from zope.interface import Interface
+        from zope.interface import implementer
+        from zope.interface.exceptions import BrokenMethodImplementation
+
+        class ICurrent(Interface):
+
+            def method(*args):
+                """docstring"""
+
+        @implementer(ICurrent)
+        class Current(object):
+
+            def method(self, a, *args):
+                raise NotImplementedError()
+
+        self.assertRaises(BrokenMethodImplementation,
+                          self._callFUT, ICurrent, Current)
+
+
+    def test_method_doesnt_take_required_kwargs(self):
+        from zope.interface import Interface
+        from zope.interface import implementer
+        from zope.interface.exceptions import BrokenMethodImplementation
+
+        class ICurrent(Interface):
+
+            def method(**kwargs):
+                """docstring"""
+
+        @implementer(ICurrent)
+        class Current(object):
+
+            def method(self, a):
+                raise NotImplementedError()
+
+        self.assertRaises(BrokenMethodImplementation,
+                          self._callFUT, ICurrent, Current)
+
+
+    def test_class_has_method_for_iface_attr(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:
+
+            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.interface import Method
+        from zope.interface import Interface
+        from zope.interface import implementer
+
+        class QuasiMethod(Method):
+            def __call__(self, *args, **kw):
+                raise NotImplementedError()
+
+        class QuasiCallable(object):
+            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(object):
+
+            @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.exceptions import MultipleInvalid
+        from zope.interface.exceptions import DoesNotImplement
+        from zope.interface.exceptions import BrokenImplementation
+        from zope.interface import Interface
+        from zope.interface import classImplements
+
+        class ISeveralMethods(Interface):
+            def meth1(arg1):
+                "Method 1"
+            def meth2(arg1):
+                "Method 2"
+
+        class SeveralMethods(object):
+            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 .idummy import IDummyModule
+        from . import dummy
+
+        self._callFUT(IDummyModule, dummy)
+
+    def test_module_miss(self):
+        from zope.interface import Interface
+        from . import dummy
+        from zope.interface.exceptions import DoesNotImplement
+
+        # 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(object):
+
+            @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