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##############################################################################
#
# Copyright (c) 2003 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.
#
##############################################################################
"""Test the new API for making and checking interface declarations
"""
import unittest
from zope.interface._compat import _skip_under_py3k
class _Py3ClassAdvice(object):
def _run_generated_code(self, code, globs, locs,
fails_under_py3k=True,
):
import warnings
from zope.interface._compat import PYTHON3
with warnings.catch_warnings(record=True) as log:
warnings.resetwarnings()
if not PYTHON3:
exec(code, globs, locs)
self.assertEqual(len(log), 0) # no longer warn
return True
else:
try:
exec(code, globs, locs)
except TypeError:
return False
else:
if fails_under_py3k:
self.fail("Didn't raise TypeError")
class NamedTests(unittest.TestCase):
def test_class(self):
from zope.interface.declarations import named
@named(u'foo')
class Foo(object):
pass
self.assertEqual(Foo.__component_name__, u'foo')
def test_function(self):
from zope.interface.declarations import named
@named(u'foo')
def doFoo(object):
pass
self.assertEqual(doFoo.__component_name__, u'foo')
def test_instance(self):
from zope.interface.declarations import named
class Foo(object):
pass
foo = Foo()
named(u'foo')(foo)
self.assertEqual(foo.__component_name__, u'foo')
class DeclarationTests(unittest.TestCase):
def _getTargetClass(self):
from zope.interface.declarations import Declaration
return Declaration
def _makeOne(self, *args, **kw):
return self._getTargetClass()(*args, **kw)
def test_ctor_no_bases(self):
decl = self._makeOne()
self.assertEqual(list(decl.__bases__), [])
def test_ctor_w_interface_in_bases(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
decl = self._makeOne(IFoo)
self.assertEqual(list(decl.__bases__), [IFoo])
def test_ctor_w_implements_in_bases(self):
from zope.interface.declarations import Implements
impl = Implements()
decl = self._makeOne(impl)
self.assertEqual(list(decl.__bases__), [impl])
def test_changed_wo_existing__v_attrs(self):
decl = self._makeOne()
decl.changed(decl) # doesn't raise
self.assertFalse('_v_attrs' in decl.__dict__)
def test_changed_w_existing__v_attrs(self):
decl = self._makeOne()
decl._v_attrs = object()
decl.changed(decl)
self.assertFalse('_v_attrs' in decl.__dict__)
def test___contains__w_self(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
decl = self._makeOne()
self.assertFalse(decl in decl)
def test___contains__w_unrelated_iface(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
decl = self._makeOne()
self.assertFalse(IFoo in decl)
def test___contains__w_base_interface(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
decl = self._makeOne(IFoo)
self.assertTrue(IFoo in decl)
def test___iter___empty(self):
decl = self._makeOne()
self.assertEqual(list(decl), [])
def test___iter___single_base(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
decl = self._makeOne(IFoo)
self.assertEqual(list(decl), [IFoo])
def test___iter___multiple_bases(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar')
decl = self._makeOne(IFoo, IBar)
self.assertEqual(list(decl), [IFoo, IBar])
def test___iter___inheritance(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', (IFoo,))
decl = self._makeOne(IBar)
self.assertEqual(list(decl), [IBar]) #IBar.interfaces() omits bases
def test___iter___w_nested_sequence_overlap(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar')
decl = self._makeOne(IBar, (IFoo, IBar))
self.assertEqual(list(decl), [IBar, IFoo])
def test_flattened_empty(self):
from zope.interface.interface import Interface
decl = self._makeOne()
self.assertEqual(list(decl.flattened()), [Interface])
def test_flattened_single_base(self):
from zope.interface.interface import Interface
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
decl = self._makeOne(IFoo)
self.assertEqual(list(decl.flattened()), [IFoo, Interface])
def test_flattened_multiple_bases(self):
from zope.interface.interface import Interface
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar')
decl = self._makeOne(IFoo, IBar)
self.assertEqual(list(decl.flattened()), [IFoo, IBar, Interface])
def test_flattened_inheritance(self):
from zope.interface.interface import Interface
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', (IFoo,))
decl = self._makeOne(IBar)
self.assertEqual(list(decl.flattened()), [IBar, IFoo, Interface])
def test_flattened_w_nested_sequence_overlap(self):
from zope.interface.interface import Interface
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar')
decl = self._makeOne(IBar, (IFoo, IBar))
# Note that decl.__iro__ has IFoo first.
self.assertEqual(list(decl.flattened()), [IFoo, IBar, Interface])
def test___sub___unrelated_interface(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar')
before = self._makeOne(IFoo)
after = before - IBar
self.assertTrue(isinstance(after, self._getTargetClass()))
self.assertEqual(list(after), [IFoo])
def test___sub___related_interface(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
before = self._makeOne(IFoo)
after = before - IFoo
self.assertEqual(list(after), [])
def test___sub___related_interface_by_inheritance(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', (IFoo,))
before = self._makeOne(IBar)
after = before - IBar
self.assertEqual(list(after), [])
def test___add___unrelated_interface(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar')
before = self._makeOne(IFoo)
after = before + IBar
self.assertTrue(isinstance(after, self._getTargetClass()))
self.assertEqual(list(after), [IFoo, IBar])
def test___add___related_interface(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar')
IBaz = InterfaceClass('IBaz')
before = self._makeOne(IFoo, IBar)
other = self._makeOne(IBar, IBaz)
after = before + other
self.assertEqual(list(after), [IFoo, IBar, IBaz])
class TestImplements(unittest.TestCase):
def _getTargetClass(self):
from zope.interface.declarations import Implements
return Implements
def _makeOne(self, *args, **kw):
return self._getTargetClass()(*args, **kw)
def test_ctor_no_bases(self):
impl = self._makeOne()
self.assertEqual(impl.inherit, None)
self.assertEqual(impl.declared, ())
self.assertEqual(impl.__name__, '?')
self.assertEqual(list(impl.__bases__), [])
def test___repr__(self):
impl = self._makeOne()
impl.__name__ = 'Testing'
self.assertEqual(repr(impl), '<implementedBy Testing>')
def test___reduce__(self):
from zope.interface.declarations import implementedBy
impl = self._makeOne()
self.assertEqual(impl.__reduce__(), (implementedBy, (None,)))
def test_sort(self):
from zope.interface.declarations import implementedBy
class A(object):
pass
class B(object):
pass
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
self.assertEqual(implementedBy(A), implementedBy(A))
self.assertEqual(hash(implementedBy(A)), hash(implementedBy(A)))
self.assertTrue(implementedBy(A) < None)
self.assertTrue(None > implementedBy(A))
self.assertTrue(implementedBy(A) < implementedBy(B))
self.assertTrue(implementedBy(A) > IFoo)
self.assertTrue(implementedBy(A) <= implementedBy(B))
self.assertTrue(implementedBy(A) >= IFoo)
self.assertTrue(implementedBy(A) != IFoo)
def test_proxy_equality(self):
# https://github.com/zopefoundation/zope.interface/issues/55
class Proxy(object):
def __init__(self, wrapped):
self._wrapped = wrapped
def __getattr__(self, name):
return getattr(self._wrapped, name)
def __eq__(self, other):
return self._wrapped == other
def __ne__(self, other):
return self._wrapped != other
from zope.interface.declarations import implementedBy
class A(object):
pass
class B(object):
pass
implementedByA = implementedBy(A)
implementedByB = implementedBy(B)
proxy = Proxy(implementedByA)
# The order of arguments to the operators matters,
# test both
self.assertTrue(implementedByA == implementedByA)
self.assertTrue(implementedByA != implementedByB)
self.assertTrue(implementedByB != implementedByA)
self.assertTrue(proxy == implementedByA)
self.assertTrue(implementedByA == proxy)
self.assertFalse(proxy != implementedByA)
self.assertFalse(implementedByA != proxy)
self.assertTrue(proxy != implementedByB)
self.assertTrue(implementedByB != proxy)
class Test_implementedByFallback(unittest.TestCase):
def _callFUT(self, *args, **kw):
from zope.interface.declarations import implementedByFallback
return implementedByFallback(*args, **kw)
def test_dictless_wo_existing_Implements_wo_registrations(self):
class Foo(object):
__slots__ = ('__implemented__',)
foo = Foo()
foo.__implemented__ = None
self.assertEqual(list(self._callFUT(foo)), [])
def test_dictless_wo_existing_Implements_cant_assign___implemented__(self):
class Foo(object):
def _get_impl(self): return None
def _set_impl(self, val): raise TypeError
__implemented__ = property(_get_impl, _set_impl)
def __call__(self): pass #act like a factory
foo = Foo()
self.assertRaises(TypeError, self._callFUT, foo)
def test_dictless_wo_existing_Implements_w_registrations(self):
from zope.interface import declarations
class Foo(object):
__slots__ = ('__implemented__',)
foo = Foo()
foo.__implemented__ = None
reg = object()
with _MonkeyDict(declarations,
'BuiltinImplementationSpecifications') as specs:
specs[foo] = reg
self.assertTrue(self._callFUT(foo) is reg)
def test_dictless_w_existing_Implements(self):
from zope.interface.declarations import Implements
impl = Implements()
class Foo(object):
__slots__ = ('__implemented__',)
foo = Foo()
foo.__implemented__ = impl
self.assertTrue(self._callFUT(foo) is impl)
def test_dictless_w_existing_not_Implements(self):
from zope.interface.interface import InterfaceClass
class Foo(object):
__slots__ = ('__implemented__',)
foo = Foo()
IFoo = InterfaceClass('IFoo')
foo.__implemented__ = (IFoo,)
self.assertEqual(list(self._callFUT(foo)), [IFoo])
def test_w_existing_attr_as_Implements(self):
from zope.interface.declarations import Implements
impl = Implements()
class Foo(object):
__implemented__ = impl
self.assertTrue(self._callFUT(Foo) is impl)
def test_builtins_added_to_cache(self):
from zope.interface import declarations
from zope.interface.declarations import Implements
from zope.interface._compat import _BUILTINS
with _MonkeyDict(declarations,
'BuiltinImplementationSpecifications') as specs:
self.assertEqual(list(self._callFUT(tuple)), [])
self.assertEqual(list(self._callFUT(list)), [])
self.assertEqual(list(self._callFUT(dict)), [])
for typ in (tuple, list, dict):
spec = specs[typ]
self.assertTrue(isinstance(spec, Implements))
self.assertEqual(repr(spec),
'<implementedBy %s.%s>'
% (_BUILTINS, typ.__name__))
def test_builtins_w_existing_cache(self):
from zope.interface import declarations
t_spec, l_spec, d_spec = object(), object(), object()
with _MonkeyDict(declarations,
'BuiltinImplementationSpecifications') as specs:
specs[tuple] = t_spec
specs[list] = l_spec
specs[dict] = d_spec
self.assertTrue(self._callFUT(tuple) is t_spec)
self.assertTrue(self._callFUT(list) is l_spec)
self.assertTrue(self._callFUT(dict) is d_spec)
def test_oldstyle_class_no_assertions(self):
# TODO: Figure out P3 story
class Foo:
pass
self.assertEqual(list(self._callFUT(Foo)), [])
def test_no_assertions(self):
# TODO: Figure out P3 story
class Foo(object):
pass
self.assertEqual(list(self._callFUT(Foo)), [])
def test_w_None_no_bases_not_factory(self):
class Foo(object):
__implemented__ = None
foo = Foo()
self.assertRaises(TypeError, self._callFUT, foo)
def test_w_None_no_bases_w_factory(self):
from zope.interface.declarations import objectSpecificationDescriptor
class Foo(object):
__implemented__ = None
def __call__(self):
pass
foo = Foo()
foo.__name__ = 'foo'
spec = self._callFUT(foo)
self.assertEqual(spec.__name__,
'zope.interface.tests.test_declarations.foo')
self.assertTrue(spec.inherit is foo)
self.assertTrue(foo.__implemented__ is spec)
self.assertTrue(foo.__providedBy__ is objectSpecificationDescriptor)
self.assertFalse('__provides__' in foo.__dict__)
def test_w_None_no_bases_w_class(self):
from zope.interface.declarations import ClassProvides
class Foo(object):
__implemented__ = None
spec = self._callFUT(Foo)
self.assertEqual(spec.__name__,
'zope.interface.tests.test_declarations.Foo')
self.assertTrue(spec.inherit is Foo)
self.assertTrue(Foo.__implemented__ is spec)
self.assertTrue(isinstance(Foo.__providedBy__, ClassProvides))
self.assertTrue(isinstance(Foo.__provides__, ClassProvides))
self.assertEqual(Foo.__provides__, Foo.__providedBy__)
def test_w_existing_Implements(self):
from zope.interface.declarations import Implements
impl = Implements()
class Foo(object):
__implemented__ = impl
self.assertTrue(self._callFUT(Foo) is impl)
class Test_implementedBy(Test_implementedByFallback):
# Repeat tests for C optimizations
def _callFUT(self, *args, **kw):
from zope.interface.declarations import implementedBy
return implementedBy(*args, **kw)
class Test_classImplementsOnly(unittest.TestCase):
def _callFUT(self, *args, **kw):
from zope.interface.declarations import classImplementsOnly
return classImplementsOnly(*args, **kw)
def test_no_existing(self):
from zope.interface.declarations import ClassProvides
from zope.interface.interface import InterfaceClass
class Foo(object):
pass
ifoo = InterfaceClass('IFoo')
self._callFUT(Foo, ifoo)
spec = Foo.__implemented__
self.assertEqual(spec.__name__,
'zope.interface.tests.test_declarations.Foo')
self.assertTrue(spec.inherit is None)
self.assertTrue(Foo.__implemented__ is spec)
self.assertTrue(isinstance(Foo.__providedBy__, ClassProvides))
self.assertTrue(isinstance(Foo.__provides__, ClassProvides))
self.assertEqual(Foo.__provides__, Foo.__providedBy__)
def test_w_existing_Implements(self):
from zope.interface.declarations import Implements
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar')
impl = Implements(IFoo)
impl.declared = (IFoo,)
class Foo(object):
__implemented__ = impl
impl.inherit = Foo
self._callFUT(Foo, IBar)
# Same spec, now different values
self.assertTrue(Foo.__implemented__ is impl)
self.assertEqual(impl.inherit, None)
self.assertEqual(impl.declared, (IBar,))
class Test_classImplements(unittest.TestCase):
def _callFUT(self, *args, **kw):
from zope.interface.declarations import classImplements
return classImplements(*args, **kw)
def test_no_existing(self):
from zope.interface.declarations import ClassProvides
from zope.interface.interface import InterfaceClass
class Foo(object):
pass
IFoo = InterfaceClass('IFoo')
self._callFUT(Foo, IFoo)
spec = Foo.__implemented__
self.assertEqual(spec.__name__,
'zope.interface.tests.test_declarations.Foo')
self.assertTrue(spec.inherit is Foo)
self.assertTrue(Foo.__implemented__ is spec)
self.assertTrue(isinstance(Foo.__providedBy__, ClassProvides))
self.assertTrue(isinstance(Foo.__provides__, ClassProvides))
self.assertEqual(Foo.__provides__, Foo.__providedBy__)
def test_w_existing_Implements(self):
from zope.interface.declarations import Implements
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar')
impl = Implements(IFoo)
impl.declared = (IFoo,)
class Foo(object):
__implemented__ = impl
impl.inherit = Foo
self._callFUT(Foo, IBar)
# Same spec, now different values
self.assertTrue(Foo.__implemented__ is impl)
self.assertEqual(impl.inherit, Foo)
self.assertEqual(impl.declared, (IFoo, IBar,))
def test_w_existing_Implements_w_bases(self):
from zope.interface.declarations import Implements
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar')
IBaz = InterfaceClass('IBaz', IFoo)
b_impl = Implements(IBaz)
impl = Implements(IFoo)
impl.declared = (IFoo,)
class Base1(object):
__implemented__ = b_impl
class Base2(object):
__implemented__ = b_impl
class Foo(Base1, Base2):
__implemented__ = impl
impl.inherit = Foo
self._callFUT(Foo, IBar)
# Same spec, now different values
self.assertTrue(Foo.__implemented__ is impl)
self.assertEqual(impl.inherit, Foo)
self.assertEqual(impl.declared, (IFoo, IBar,))
self.assertEqual(impl.__bases__, (IFoo, IBar, b_impl))
class Test__implements_advice(unittest.TestCase):
def _callFUT(self, *args, **kw):
from zope.interface.declarations import _implements_advice
return _implements_advice(*args, **kw)
def test_no_existing_implements(self):
from zope.interface.declarations import classImplements
from zope.interface.declarations import Implements
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
class Foo(object):
__implements_advice_data__ = ((IFoo,), classImplements)
self._callFUT(Foo)
self.assertFalse('__implements_advice_data__' in Foo.__dict__)
self.assertTrue(isinstance(Foo.__implemented__, Implements))
self.assertEqual(list(Foo.__implemented__), [IFoo])
class Test_implementer(unittest.TestCase):
def _getTargetClass(self):
from zope.interface.declarations import implementer
return implementer
def _makeOne(self, *args, **kw):
return self._getTargetClass()(*args, **kw)
def test_oldstyle_class(self):
# TODO Py3 story
from zope.interface.declarations import ClassProvides
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
class Foo:
pass
decorator = self._makeOne(IFoo)
returned = decorator(Foo)
self.assertTrue(returned is Foo)
spec = Foo.__implemented__
self.assertEqual(spec.__name__,
'zope.interface.tests.test_declarations.Foo')
self.assertTrue(spec.inherit is Foo)
self.assertTrue(Foo.__implemented__ is spec)
self.assertTrue(isinstance(Foo.__providedBy__, ClassProvides))
self.assertTrue(isinstance(Foo.__provides__, ClassProvides))
self.assertEqual(Foo.__provides__, Foo.__providedBy__)
def test_newstyle_class(self):
from zope.interface.declarations import ClassProvides
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
class Foo(object):
pass
decorator = self._makeOne(IFoo)
returned = decorator(Foo)
self.assertTrue(returned is Foo)
spec = Foo.__implemented__
self.assertEqual(spec.__name__,
'zope.interface.tests.test_declarations.Foo')
self.assertTrue(spec.inherit is Foo)
self.assertTrue(Foo.__implemented__ is spec)
self.assertTrue(isinstance(Foo.__providedBy__, ClassProvides))
self.assertTrue(isinstance(Foo.__provides__, ClassProvides))
self.assertEqual(Foo.__provides__, Foo.__providedBy__)
def test_nonclass_cannot_assign_attr(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
decorator = self._makeOne(IFoo)
self.assertRaises(TypeError, decorator, object())
def test_nonclass_can_assign_attr(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
class Foo(object):
pass
foo = Foo()
decorator = self._makeOne(IFoo)
returned = decorator(foo)
self.assertTrue(returned is foo)
spec = foo.__implemented__
self.assertEqual(spec.__name__, 'zope.interface.tests.test_declarations.?')
self.assertTrue(spec.inherit is None)
self.assertTrue(foo.__implemented__ is spec)
class Test_implementer_only(unittest.TestCase):
def _getTargetClass(self):
from zope.interface.declarations import implementer_only
return implementer_only
def _makeOne(self, *args, **kw):
return self._getTargetClass()(*args, **kw)
def test_function(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
decorator = self._makeOne(IFoo)
def _function(): pass
self.assertRaises(ValueError, decorator, _function)
def test_method(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
decorator = self._makeOne(IFoo)
class Bar:
def _method(): pass
self.assertRaises(ValueError, decorator, Bar._method)
def test_oldstyle_class(self):
# TODO Py3 story
from zope.interface.declarations import Implements
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar')
old_spec = Implements(IBar)
class Foo:
__implemented__ = old_spec
decorator = self._makeOne(IFoo)
returned = decorator(Foo)
self.assertTrue(returned is Foo)
spec = Foo.__implemented__
self.assertEqual(spec.__name__, '?')
self.assertTrue(spec.inherit is None)
self.assertTrue(Foo.__implemented__ is spec)
def test_newstyle_class(self):
from zope.interface.declarations import Implements
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar')
old_spec = Implements(IBar)
class Foo(object):
__implemented__ = old_spec
decorator = self._makeOne(IFoo)
returned = decorator(Foo)
self.assertTrue(returned is Foo)
spec = Foo.__implemented__
self.assertEqual(spec.__name__, '?')
self.assertTrue(spec.inherit is None)
self.assertTrue(Foo.__implemented__ is spec)
# Test '_implements' by way of 'implements{,Only}', its only callers.
class Test_implementsOnly(unittest.TestCase, _Py3ClassAdvice):
def _getFUT(self):
from zope.interface.declarations import implementsOnly
return implementsOnly
def test_simple(self):
import warnings
from zope.interface.declarations import implementsOnly
from zope.interface._compat import PYTHON3
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
globs = {'implementsOnly': implementsOnly,
'IFoo': IFoo,
}
locs = {}
CODE = "\n".join([
'class Foo(object):'
' implementsOnly(IFoo)',
])
with warnings.catch_warnings(record=True) as log:
warnings.resetwarnings()
try:
exec(CODE, globs, locs)
except TypeError:
if not PYTHON3:
raise
else:
if PYTHON3:
self.fail("Didn't raise TypeError")
Foo = locs['Foo']
spec = Foo.__implemented__
self.assertEqual(list(spec), [IFoo])
self.assertEqual(len(log), 0) # no longer warn
def test_called_once_from_class_w_bases(self):
from zope.interface.declarations import implements
from zope.interface.declarations import implementsOnly
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
IBar = InterfaceClass("IBar")
globs = {'implements': implements,
'implementsOnly': implementsOnly,
'IFoo': IFoo,
'IBar': IBar,
}
locs = {}
CODE = "\n".join([
'class Foo(object):',
' implements(IFoo)',
'class Bar(Foo):'
' implementsOnly(IBar)',
])
if self._run_generated_code(CODE, globs, locs):
Bar = locs['Bar']
spec = Bar.__implemented__
self.assertEqual(list(spec), [IBar])
class Test_implements(unittest.TestCase, _Py3ClassAdvice):
def _getFUT(self):
from zope.interface.declarations import implements
return implements
def test_called_from_function(self):
import warnings
from zope.interface.declarations import implements
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
globs = {'implements': implements, 'IFoo': IFoo}
locs = {}
CODE = "\n".join([
'def foo():',
' implements(IFoo)'
])
if self._run_generated_code(CODE, globs, locs, False):
foo = locs['foo']
with warnings.catch_warnings(record=True) as log:
warnings.resetwarnings()
self.assertRaises(TypeError, foo)
self.assertEqual(len(log), 0) # no longer warn
def test_called_twice_from_class(self):
import warnings
from zope.interface.declarations import implements
from zope.interface.interface import InterfaceClass
from zope.interface._compat import PYTHON3
IFoo = InterfaceClass("IFoo")
IBar = InterfaceClass("IBar")
globs = {'implements': implements, 'IFoo': IFoo, 'IBar': IBar}
locs = {}
CODE = "\n".join([
'class Foo(object):',
' implements(IFoo)',
' implements(IBar)',
])
with warnings.catch_warnings(record=True) as log:
warnings.resetwarnings()
try:
exec(CODE, globs, locs)
except TypeError:
if not PYTHON3:
self.assertEqual(len(log), 0) # no longer warn
else:
self.fail("Didn't raise TypeError")
def test_called_once_from_class(self):
from zope.interface.declarations import implements
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
globs = {'implements': implements, 'IFoo': IFoo}
locs = {}
CODE = "\n".join([
'class Foo(object):',
' implements(IFoo)',
])
if self._run_generated_code(CODE, globs, locs):
Foo = locs['Foo']
spec = Foo.__implemented__
self.assertEqual(list(spec), [IFoo])
class ProvidesClassTests(unittest.TestCase):
def _getTargetClass(self):
from zope.interface.declarations import ProvidesClass
return ProvidesClass
def _makeOne(self, *args, **kw):
return self._getTargetClass()(*args, **kw)
def test_simple_class_one_interface(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
class Foo(object):
pass
spec = self._makeOne(Foo, IFoo)
self.assertEqual(list(spec), [IFoo])
def test___reduce__(self):
from zope.interface.declarations import Provides # the function
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
class Foo(object):
pass
spec = self._makeOne(Foo, IFoo)
klass, args = spec.__reduce__()
self.assertTrue(klass is Provides)
self.assertEqual(args, (Foo, IFoo))
def test___get___class(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
class Foo(object):
pass
spec = self._makeOne(Foo, IFoo)
Foo.__provides__ = spec
self.assertTrue(Foo.__provides__ is spec)
def test___get___instance(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
class Foo(object):
pass
spec = self._makeOne(Foo, IFoo)
Foo.__provides__ = spec
def _test():
foo = Foo()
return foo.__provides__
self.assertRaises(AttributeError, _test)
class Test_Provides(unittest.TestCase):
def _callFUT(self, *args, **kw):
from zope.interface.declarations import Provides
return Provides(*args, **kw)
def test_no_cached_spec(self):
from zope.interface import declarations
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
cache = {}
class Foo(object):
pass
with _Monkey(declarations, InstanceDeclarations=cache):
spec = self._callFUT(Foo, IFoo)
self.assertEqual(list(spec), [IFoo])
self.assertTrue(cache[(Foo, IFoo)] is spec)
def test_w_cached_spec(self):
from zope.interface import declarations
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
prior = object()
class Foo(object):
pass
cache = {(Foo, IFoo): prior}
with _Monkey(declarations, InstanceDeclarations=cache):
spec = self._callFUT(Foo, IFoo)
self.assertTrue(spec is prior)
class Test_directlyProvides(unittest.TestCase):
def _callFUT(self, *args, **kw):
from zope.interface.declarations import directlyProvides
return directlyProvides(*args, **kw)
def test_w_normal_object(self):
from zope.interface.declarations import ProvidesClass
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
class Foo(object):
pass
obj = Foo()
self._callFUT(obj, IFoo)
self.assertTrue(isinstance(obj.__provides__, ProvidesClass))
self.assertEqual(list(obj.__provides__), [IFoo])
def test_w_class(self):
from zope.interface.declarations import ClassProvides
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
class Foo(object):
pass
self._callFUT(Foo, IFoo)
self.assertTrue(isinstance(Foo.__provides__, ClassProvides))
self.assertEqual(list(Foo.__provides__), [IFoo])
@_skip_under_py3k
def test_w_non_descriptor_aware_metaclass(self):
# There are no non-descriptor-aware types in Py3k
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
class MetaClass(type):
def __getattribute__(self, name):
# Emulate metaclass whose base is not the type object.
if name == '__class__':
return self
return type.__getattribute__(self, name)
class Foo(object):
__metaclass__ = MetaClass
obj = Foo()
self.assertRaises(TypeError, self._callFUT, obj, IFoo)
def test_w_classless_object(self):
from zope.interface.declarations import ProvidesClass
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
the_dict = {}
class Foo(object):
def __getattribute__(self, name):
# Emulate object w/o any class
if name == '__class__':
return None
try:
return the_dict[name]
except KeyError:
raise AttributeError(name)
def __setattr__(self, name, value):
the_dict[name] = value
obj = Foo()
self._callFUT(obj, IFoo)
self.assertTrue(isinstance(the_dict['__provides__'], ProvidesClass))
self.assertEqual(list(the_dict['__provides__']), [IFoo])
class Test_alsoProvides(unittest.TestCase):
def _callFUT(self, *args, **kw):
from zope.interface.declarations import alsoProvides
return alsoProvides(*args, **kw)
def test_wo_existing_provides(self):
from zope.interface.declarations import ProvidesClass
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
class Foo(object):
pass
obj = Foo()
self._callFUT(obj, IFoo)
self.assertTrue(isinstance(obj.__provides__, ProvidesClass))
self.assertEqual(list(obj.__provides__), [IFoo])
def test_w_existing_provides(self):
from zope.interface.declarations import directlyProvides
from zope.interface.declarations import ProvidesClass
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
IBar = InterfaceClass("IBar")
class Foo(object):
pass
obj = Foo()
directlyProvides(obj, IFoo)
self._callFUT(obj, IBar)
self.assertTrue(isinstance(obj.__provides__, ProvidesClass))
self.assertEqual(list(obj.__provides__), [IFoo, IBar])
class Test_noLongerProvides(unittest.TestCase):
def _callFUT(self, *args, **kw):
from zope.interface.declarations import noLongerProvides
return noLongerProvides(*args, **kw)
def test_wo_existing_provides(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
class Foo(object):
pass
obj = Foo()
self._callFUT(obj, IFoo)
self.assertEqual(list(obj.__provides__), [])
def test_w_existing_provides_hit(self):
from zope.interface.declarations import directlyProvides
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
class Foo(object):
pass
obj = Foo()
directlyProvides(obj, IFoo)
self._callFUT(obj, IFoo)
self.assertEqual(list(obj.__provides__), [])
def test_w_existing_provides_miss(self):
from zope.interface.declarations import directlyProvides
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
IBar = InterfaceClass("IBar")
class Foo(object):
pass
obj = Foo()
directlyProvides(obj, IFoo)
self._callFUT(obj, IBar)
self.assertEqual(list(obj.__provides__), [IFoo])
def test_w_iface_implemented_by_class(self):
from zope.interface.declarations import implementer
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
@implementer(IFoo)
class Foo(object):
pass
obj = Foo()
self.assertRaises(ValueError, self._callFUT, obj, IFoo)
class ClassProvidesBaseFallbackTests(unittest.TestCase):
def _getTargetClass(self):
from zope.interface.declarations import ClassProvidesBaseFallback
return ClassProvidesBaseFallback
def _makeOne(self, klass, implements):
# Don't instantiate directly: the C version can't have attributes
# assigned.
class Derived(self._getTargetClass()):
def __init__(self, k, i):
self._cls = k
self._implements = i
return Derived(klass, implements)
def test_w_same_class_via_class(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
class Foo(object):
pass
cpbp = Foo.__provides__ = self._makeOne(Foo, IFoo)
self.assertTrue(Foo.__provides__ is cpbp)
def test_w_same_class_via_instance(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
class Foo(object):
pass
foo = Foo()
cpbp = Foo.__provides__ = self._makeOne(Foo, IFoo)
self.assertTrue(foo.__provides__ is IFoo)
def test_w_different_class(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
class Foo(object):
pass
class Bar(Foo):
pass
bar = Bar()
cpbp = Foo.__provides__ = self._makeOne(Foo, IFoo)
self.assertRaises(AttributeError, getattr, Bar, '__provides__')
self.assertRaises(AttributeError, getattr, bar, '__provides__')
class ClassProvidesBaseTests(ClassProvidesBaseFallbackTests):
# Repeat tests for C optimizations
def _getTargetClass(self):
from zope.interface.declarations import ClassProvidesBase
return ClassProvidesBase
class ClassProvidesTests(unittest.TestCase):
def _getTargetClass(self):
from zope.interface.declarations import ClassProvides
return ClassProvides
def _makeOne(self, *args, **kw):
return self._getTargetClass()(*args, **kw)
def test_w_simple_metaclass(self):
from zope.interface.declarations import implementer
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
IBar = InterfaceClass("IBar")
@implementer(IFoo)
class Foo(object):
pass
cp = Foo.__provides__ = self._makeOne(Foo, type(Foo), IBar)
self.assertTrue(Foo.__provides__ is cp)
self.assertEqual(list(Foo().__provides__), [IFoo])
def test___reduce__(self):
from zope.interface.declarations import implementer
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
IBar = InterfaceClass("IBar")
@implementer(IFoo)
class Foo(object):
pass
cp = Foo.__provides__ = self._makeOne(Foo, type(Foo), IBar)
self.assertEqual(cp.__reduce__(),
(self._getTargetClass(), (Foo, type(Foo), IBar)))
class Test_directlyProvidedBy(unittest.TestCase):
def _callFUT(self, *args, **kw):
from zope.interface.declarations import directlyProvidedBy
return directlyProvidedBy(*args, **kw)
def test_wo_declarations_in_class_or_instance(self):
class Foo(object):
pass
foo = Foo()
self.assertEqual(list(self._callFUT(foo)), [])
def test_w_declarations_in_class_but_not_instance(self):
from zope.interface.declarations import implementer
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
@implementer(IFoo)
class Foo(object):
pass
foo = Foo()
self.assertEqual(list(self._callFUT(foo)), [])
def test_w_declarations_in_instance_but_not_class(self):
from zope.interface.declarations import directlyProvides
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
class Foo(object):
pass
foo = Foo()
directlyProvides(foo, IFoo)
self.assertEqual(list(self._callFUT(foo)), [IFoo])
def test_w_declarations_in_instance_and_class(self):
from zope.interface.declarations import directlyProvides
from zope.interface.declarations import implementer
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
IBar = InterfaceClass("IBar")
@implementer(IFoo)
class Foo(object):
pass
foo = Foo()
directlyProvides(foo, IBar)
self.assertEqual(list(self._callFUT(foo)), [IBar])
class Test_classProvides(unittest.TestCase, _Py3ClassAdvice):
def _getFUT(self):
from zope.interface.declarations import classProvides
return classProvides
def test_called_from_function(self):
import warnings
from zope.interface.declarations import classProvides
from zope.interface.interface import InterfaceClass
from zope.interface._compat import PYTHON3
IFoo = InterfaceClass("IFoo")
globs = {'classProvides': classProvides, 'IFoo': IFoo}
locs = {}
CODE = "\n".join([
'def foo():',
' classProvides(IFoo)'
])
exec(CODE, globs, locs)
foo = locs['foo']
with warnings.catch_warnings(record=True) as log:
warnings.resetwarnings()
self.assertRaises(TypeError, foo)
if not PYTHON3:
self.assertEqual(len(log), 0) # no longer warn
def test_called_twice_from_class(self):
import warnings
from zope.interface.declarations import classProvides
from zope.interface.interface import InterfaceClass
from zope.interface._compat import PYTHON3
IFoo = InterfaceClass("IFoo")
IBar = InterfaceClass("IBar")
globs = {'classProvides': classProvides, 'IFoo': IFoo, 'IBar': IBar}
locs = {}
CODE = "\n".join([
'class Foo(object):',
' classProvides(IFoo)',
' classProvides(IBar)',
])
with warnings.catch_warnings(record=True) as log:
warnings.resetwarnings()
try:
exec(CODE, globs, locs)
except TypeError:
if not PYTHON3:
self.assertEqual(len(log), 0) # no longer warn
else:
self.fail("Didn't raise TypeError")
def test_called_once_from_class(self):
from zope.interface.declarations import classProvides
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
globs = {'classProvides': classProvides, 'IFoo': IFoo}
locs = {}
CODE = "\n".join([
'class Foo(object):',
' classProvides(IFoo)',
])
if self._run_generated_code(CODE, globs, locs):
Foo = locs['Foo']
spec = Foo.__providedBy__
self.assertEqual(list(spec), [IFoo])
# Test _classProvides_advice through classProvides, its only caller.
class Test_provider(unittest.TestCase):
def _getTargetClass(self):
from zope.interface.declarations import provider
return provider
def _makeOne(self, *args, **kw):
return self._getTargetClass()(*args, **kw)
def test_w_class(self):
from zope.interface.declarations import ClassProvides
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
@self._makeOne(IFoo)
class Foo(object):
pass
self.assertTrue(isinstance(Foo.__provides__, ClassProvides))
self.assertEqual(list(Foo.__provides__), [IFoo])
class Test_moduleProvides(unittest.TestCase):
def _getFUT(self):
from zope.interface.declarations import moduleProvides
return moduleProvides
def test_called_from_function(self):
from zope.interface.declarations import moduleProvides
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
globs = {'__name__': 'zope.interface.tests.foo',
'moduleProvides': moduleProvides, 'IFoo': IFoo}
locs = {}
CODE = "\n".join([
'def foo():',
' moduleProvides(IFoo)'
])
exec(CODE, globs, locs)
foo = locs['foo']
self.assertRaises(TypeError, foo)
def test_called_from_class(self):
from zope.interface.declarations import moduleProvides
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
globs = {'__name__': 'zope.interface.tests.foo',
'moduleProvides': moduleProvides, 'IFoo': IFoo}
locs = {}
CODE = "\n".join([
'class Foo(object):',
' moduleProvides(IFoo)',
])
try:
exec(CODE, globs, locs)
except TypeError:
pass
else:
assert False, 'TypeError not raised'
def test_called_once_from_module_scope(self):
from zope.interface.declarations import moduleProvides
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
globs = {'__name__': 'zope.interface.tests.foo',
'moduleProvides': moduleProvides, 'IFoo': IFoo}
CODE = "\n".join([
'moduleProvides(IFoo)',
])
exec(CODE, globs)
spec = globs['__provides__']
self.assertEqual(list(spec), [IFoo])
def test_called_twice_from_module_scope(self):
from zope.interface.declarations import moduleProvides
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
globs = {'__name__': 'zope.interface.tests.foo',
'moduleProvides': moduleProvides, 'IFoo': IFoo}
locs = {}
CODE = "\n".join([
'moduleProvides(IFoo)',
'moduleProvides(IFoo)',
])
try:
exec(CODE, globs)
except TypeError:
pass
else:
assert False, 'TypeError not raised'
class Test_getObjectSpecificationFallback(unittest.TestCase):
def _callFUT(self, *args, **kw):
from zope.interface.declarations import getObjectSpecificationFallback
return getObjectSpecificationFallback(*args, **kw)
def test_wo_existing_provides_classless(self):
the_dict = {}
class Foo(object):
def __getattribute__(self, name):
# Emulate object w/o any class
if name == '__class__':
raise AttributeError(name)
try:
return the_dict[name]
except KeyError:
raise AttributeError(name)
def __setattr__(self, name, value):
the_dict[name] = value
foo = Foo()
spec = self._callFUT(foo)
self.assertEqual(list(spec), [])
def test_existing_provides_is_spec(self):
from zope.interface.declarations import directlyProvides
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
def foo():
pass
directlyProvides(foo, IFoo)
spec = self._callFUT(foo)
self.assertTrue(spec is foo.__provides__)
def test_existing_provides_is_not_spec(self):
def foo():
pass
foo.__provides__ = object() # not a valid spec
spec = self._callFUT(foo)
self.assertEqual(list(spec), [])
def test_existing_provides(self):
from zope.interface.declarations import directlyProvides
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
class Foo(object):
pass
foo = Foo()
directlyProvides(foo, IFoo)
spec = self._callFUT(foo)
self.assertEqual(list(spec), [IFoo])
def test_wo_provides_on_class_w_implements(self):
from zope.interface.declarations import implementer
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
@implementer(IFoo)
class Foo(object):
pass
foo = Foo()
spec = self._callFUT(foo)
self.assertEqual(list(spec), [IFoo])
def test_wo_provides_on_class_wo_implements(self):
class Foo(object):
pass
foo = Foo()
spec = self._callFUT(foo)
self.assertEqual(list(spec), [])
class Test_getObjectSpecification(Test_getObjectSpecificationFallback):
# Repeat tests for C optimizations
def _callFUT(self, *args, **kw):
from zope.interface.declarations import getObjectSpecification
return getObjectSpecification(*args, **kw)
class Test_providedByFallback(unittest.TestCase):
def _callFUT(self, *args, **kw):
from zope.interface.declarations import providedByFallback
return providedByFallback(*args, **kw)
def test_wo_providedBy_on_class_wo_implements(self):
class Foo(object):
pass
foo = Foo()
spec = self._callFUT(foo)
self.assertEqual(list(spec), [])
def test_w_providedBy_valid_spec(self):
from zope.interface.declarations import Provides
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
class Foo(object):
pass
foo = Foo()
foo.__providedBy__ = Provides(Foo, IFoo)
spec = self._callFUT(foo)
self.assertEqual(list(spec), [IFoo])
def test_w_providedBy_invalid_spec(self):
class Foo(object):
pass
foo = Foo()
foo.__providedBy__ = object()
spec = self._callFUT(foo)
self.assertEqual(list(spec), [])
def test_w_providedBy_invalid_spec_class_w_implements(self):
from zope.interface.declarations import implementer
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
@implementer(IFoo)
class Foo(object):
pass
foo = Foo()
foo.__providedBy__ = object()
spec = self._callFUT(foo)
self.assertEqual(list(spec), [IFoo])
def test_w_providedBy_invalid_spec_w_provides_no_provides_on_class(self):
class Foo(object):
pass
foo = Foo()
foo.__providedBy__ = object()
expected = foo.__provides__ = object()
spec = self._callFUT(foo)
self.assertTrue(spec is expected)
def test_w_providedBy_invalid_spec_w_provides_diff_provides_on_class(self):
class Foo(object):
pass
foo = Foo()
foo.__providedBy__ = object()
expected = foo.__provides__ = object()
Foo.__provides__ = object()
spec = self._callFUT(foo)
self.assertTrue(spec is expected)
def test_w_providedBy_invalid_spec_w_provides_same_provides_on_class(self):
from zope.interface.declarations import implementer
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
@implementer(IFoo)
class Foo(object):
pass
foo = Foo()
foo.__providedBy__ = object()
foo.__provides__ = Foo.__provides__ = object()
spec = self._callFUT(foo)
self.assertEqual(list(spec), [IFoo])
class Test_providedBy(Test_providedByFallback):
# Repeat tests for C optimizations
def _callFUT(self, *args, **kw):
from zope.interface.declarations import providedBy
return providedBy(*args, **kw)
class ObjectSpecificationDescriptorFallbackTests(unittest.TestCase):
def _getTargetClass(self):
from zope.interface.declarations \
import ObjectSpecificationDescriptorFallback
return ObjectSpecificationDescriptorFallback
def _makeOne(self, *args, **kw):
return self._getTargetClass()(*args, **kw)
def test_accessed_via_class(self):
from zope.interface.declarations import Provides
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
class Foo(object):
pass
Foo.__provides__ = Provides(Foo, IFoo)
Foo.__providedBy__ = self._makeOne()
self.assertEqual(list(Foo.__providedBy__), [IFoo])
def test_accessed_via_inst_wo_provides(self):
from zope.interface.declarations import implementer
from zope.interface.declarations import Provides
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
IBar = InterfaceClass("IBar")
@implementer(IFoo)
class Foo(object):
pass
Foo.__provides__ = Provides(Foo, IBar)
Foo.__providedBy__ = self._makeOne()
foo = Foo()
self.assertEqual(list(foo.__providedBy__), [IFoo])
def test_accessed_via_inst_w_provides(self):
from zope.interface.declarations import directlyProvides
from zope.interface.declarations import implementer
from zope.interface.declarations import Provides
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass("IFoo")
IBar = InterfaceClass("IBar")
IBaz = InterfaceClass("IBaz")
@implementer(IFoo)
class Foo(object):
pass
Foo.__provides__ = Provides(Foo, IBar)
Foo.__providedBy__ = self._makeOne()
foo = Foo()
directlyProvides(foo, IBaz)
self.assertEqual(list(foo.__providedBy__), [IBaz, IFoo])
class ObjectSpecificationDescriptorTests(
ObjectSpecificationDescriptorFallbackTests):
# Repeat tests for C optimizations
def _getTargetClass(self):
from zope.interface.declarations import ObjectSpecificationDescriptor
return ObjectSpecificationDescriptor
# Test _normalizeargs through its callers.
class _Monkey(object):
# context-manager for replacing module names in the scope of a test.
def __init__(self, module, **kw):
self.module = module
self.to_restore = dict([(key, getattr(module, key)) for key in kw])
for key, value in kw.items():
setattr(module, key, value)
def __enter__(self):
return self
def __exit__(self, exc_type, exc_val, exc_tb):
for key, value in self.to_restore.items():
setattr(self.module, key, value)
class _MonkeyDict(object):
# context-manager for restoring a dict w/in a module in the scope of a test.
def __init__(self, module, attrname, **kw):
self.module = module
self.target = getattr(module, attrname)
self.to_restore = self.target.copy()
self.target.clear()
self.target.update(kw)
def __enter__(self):
return self.target
def __exit__(self, exc_type, exc_val, exc_tb):
self.target.clear()
self.target.update(self.to_restore)
def test_suite():
return unittest.TestSuite((
unittest.makeSuite(DeclarationTests),
unittest.makeSuite(TestImplements),
unittest.makeSuite(Test_implementedByFallback),
unittest.makeSuite(Test_implementedBy),
unittest.makeSuite(Test_classImplementsOnly),
unittest.makeSuite(Test_classImplements),
unittest.makeSuite(Test__implements_advice),
unittest.makeSuite(Test_implementer),
unittest.makeSuite(Test_implementer_only),
unittest.makeSuite(Test_implements),
unittest.makeSuite(Test_implementsOnly),
unittest.makeSuite(ProvidesClassTests),
unittest.makeSuite(Test_Provides),
unittest.makeSuite(Test_directlyProvides),
unittest.makeSuite(Test_alsoProvides),
unittest.makeSuite(Test_noLongerProvides),
unittest.makeSuite(ClassProvidesBaseFallbackTests),
unittest.makeSuite(ClassProvidesTests),
unittest.makeSuite(Test_directlyProvidedBy),
unittest.makeSuite(Test_classProvides),
unittest.makeSuite(Test_provider),
unittest.makeSuite(Test_moduleProvides),
unittest.makeSuite(Test_getObjectSpecificationFallback),
unittest.makeSuite(Test_getObjectSpecification),
unittest.makeSuite(Test_providedByFallback),
unittest.makeSuite(Test_providedBy),
unittest.makeSuite(ObjectSpecificationDescriptorFallbackTests),
unittest.makeSuite(ObjectSpecificationDescriptorTests),
))
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