/usr/lib/python2.7/dist-packages/zope/interface/tests/test_adapter.py is in python-zope.interface 4.3.2-1build2.
This file is owned by root:root, with mode 0o644.
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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.
#
##############################################################################
"""Adapter registry tests
"""
import unittest
def _makeInterfaces():
from zope.interface import Interface
class IB0(Interface): pass
class IB1(IB0): pass
class IB2(IB0): pass
class IB3(IB2, IB1): pass
class IB4(IB1, IB2): pass
class IF0(Interface): pass
class IF1(IF0): pass
class IR0(Interface): pass
class IR1(IR0): pass
return IB0, IB1, IB2, IB3, IB4, IF0, IF1, IR0, IR1
class BaseAdapterRegistryTests(unittest.TestCase):
def _getTargetClass(self):
from zope.interface.adapter import BaseAdapterRegistry
class _CUT(BaseAdapterRegistry):
class LookupClass(object):
_changed = _extendors = ()
def __init__(self, reg):
pass
def changed(self, orig):
self._changed += (orig,)
def add_extendor(self, provided):
self._extendors += (provided,)
def remove_extendor(self, provided):
self._extendors = tuple([x for x in self._extendors
if x != provided])
for name in BaseAdapterRegistry._delegated:
setattr(_CUT.LookupClass, name, object())
return _CUT
def _makeOne(self):
return self._getTargetClass()()
def test_lookup_delegation(self):
CUT = self._getTargetClass()
registry = CUT()
for name in CUT._delegated:
self.assertTrue(
getattr(registry, name) is getattr(registry._v_lookup, name))
def test__generation_on_first_creation(self):
registry = self._makeOne()
# Bumped to 1 in BaseAdapterRegistry.__init__
self.assertEqual(registry._generation, 1)
def test__generation_after_calling_changed(self):
registry = self._makeOne()
orig = object()
registry.changed(orig)
# Bumped to 1 in BaseAdapterRegistry.__init__
self.assertEqual(registry._generation, 2)
self.assertEqual(registry._v_lookup._changed, (registry, orig,))
def test__generation_after_changing___bases__(self):
class _Base(object): pass
registry = self._makeOne()
registry.__bases__ = (_Base,)
self.assertEqual(registry._generation, 2)
def test_register(self):
IB0, IB1, IB2, IB3, IB4, IF0, IF1, IR0, IR1 = _makeInterfaces()
registry = self._makeOne()
registry.register([IB0], IR0, '', 'A1')
self.assertEqual(registry.registered([IB0], IR0, ''), 'A1')
self.assertEqual(len(registry._adapters), 2) #order 0 and order 1
self.assertEqual(registry._generation, 2)
def test_register_with_value_None_unregisters(self):
IB0, IB1, IB2, IB3, IB4, IF0, IF1, IR0, IR1 = _makeInterfaces()
registry = self._makeOne()
registry.register([None], IR0, '', 'A1')
registry.register([None], IR0, '', None)
self.assertEqual(len(registry._adapters), 0)
def test_register_with_same_value(self):
IB0, IB1, IB2, IB3, IB4, IF0, IF1, IR0, IR1 = _makeInterfaces()
registry = self._makeOne()
_value = object()
registry.register([None], IR0, '', _value)
_before = registry._generation
registry.register([None], IR0, '', _value)
self.assertEqual(registry._generation, _before) # skipped changed()
def test_registered_empty(self):
registry = self._makeOne()
self.assertEqual(registry.registered([None], None, ''), None)
def test_registered_non_empty_miss(self):
IB0, IB1, IB2, IB3, IB4, IF0, IF1, IR0, IR1 = _makeInterfaces()
registry = self._makeOne()
registry.register([IB1], None, '', 'A1')
self.assertEqual(registry.registered([IB2], None, ''), None)
def test_registered_non_empty_hit(self):
registry = self._makeOne()
registry.register([None], None, '', 'A1')
self.assertEqual(registry.registered([None], None, ''), 'A1')
def test_unregister_empty(self):
registry = self._makeOne()
registry.unregister([None], None, '') #doesn't raise
self.assertEqual(registry.registered([None], None, ''), None)
def test_unregister_non_empty_miss_on_required(self):
IB0, IB1, IB2, IB3, IB4, IF0, IF1, IR0, IR1 = _makeInterfaces()
registry = self._makeOne()
registry.register([IB1], None, '', 'A1')
registry.unregister([IB2], None, '') #doesn't raise
self.assertEqual(registry.registered([IB1], None, ''), 'A1')
def test_unregister_non_empty_miss_on_name(self):
IB0, IB1, IB2, IB3, IB4, IF0, IF1, IR0, IR1 = _makeInterfaces()
registry = self._makeOne()
registry.register([IB1], None, '', 'A1')
registry.unregister([IB1], None, 'nonesuch') #doesn't raise
self.assertEqual(registry.registered([IB1], None, ''), 'A1')
def test_unregister_with_value_not_None_miss(self):
IB0, IB1, IB2, IB3, IB4, IF0, IF1, IR0, IR1 = _makeInterfaces()
registry = self._makeOne()
orig = object()
nomatch = object()
registry.register([IB1], None, '', orig)
registry.unregister([IB1], None, '', nomatch) #doesn't raise
self.assertTrue(registry.registered([IB1], None, '') is orig)
def test_unregister_hit_clears_empty_subcomponents(self):
IB0, IB1, IB2, IB3, IB4, IF0, IF1, IR0, IR1 = _makeInterfaces()
registry = self._makeOne()
one = object()
another = object()
registry.register([IB1, IB2], None, '', one)
registry.register([IB1, IB3], None, '', another)
self.assertTrue(IB2 in registry._adapters[2][IB1])
self.assertTrue(IB3 in registry._adapters[2][IB1])
registry.unregister([IB1, IB3], None, '', another)
self.assertTrue(IB2 in registry._adapters[2][IB1])
self.assertFalse(IB3 in registry._adapters[2][IB1])
def test_unsubscribe_empty(self):
registry = self._makeOne()
registry.unsubscribe([None], None, '') #doesn't raise
self.assertEqual(registry.registered([None], None, ''), None)
def test_unsubscribe_hit(self):
IB0, IB1, IB2, IB3, IB4, IF0, IF1, IR0, IR1 = _makeInterfaces()
registry = self._makeOne()
orig = object()
registry.subscribe([IB1], None, orig)
registry.unsubscribe([IB1], None, orig) #doesn't raise
self.assertEqual(len(registry._subscribers), 0)
def test_unsubscribe_after_multiple(self):
IB0, IB1, IB2, IB3, IB4, IF0, IF1, IR0, IR1 = _makeInterfaces()
registry = self._makeOne()
first = object()
second = object()
third = object()
fourth = object()
registry.subscribe([IB1], None, first)
registry.subscribe([IB1], None, second)
registry.subscribe([IB1], IR0, third)
registry.subscribe([IB1], IR0, fourth)
registry.unsubscribe([IB1], IR0, fourth)
registry.unsubscribe([IB1], IR0, third)
registry.unsubscribe([IB1], None, second)
registry.unsubscribe([IB1], None, first)
self.assertEqual(len(registry._subscribers), 0)
def test_unsubscribe_w_None_after_multiple(self):
IB0, IB1, IB2, IB3, IB4, IF0, IF1, IR0, IR1 = _makeInterfaces()
registry = self._makeOne()
first = object()
second = object()
third = object()
registry.subscribe([IB1], None, first)
registry.subscribe([IB1], None, second)
registry.unsubscribe([IB1], None)
self.assertEqual(len(registry._subscribers), 0)
def test_unsubscribe_non_empty_miss_on_required(self):
IB0, IB1, IB2, IB3, IB4, IF0, IF1, IR0, IR1 = _makeInterfaces()
registry = self._makeOne()
registry.subscribe([IB1], None, 'A1')
self.assertEqual(len(registry._subscribers), 2)
registry.unsubscribe([IB2], None, '') #doesn't raise
self.assertEqual(len(registry._subscribers), 2)
def test_unsubscribe_non_empty_miss_on_value(self):
IB0, IB1, IB2, IB3, IB4, IF0, IF1, IR0, IR1 = _makeInterfaces()
registry = self._makeOne()
registry.subscribe([IB1], None, 'A1')
self.assertEqual(len(registry._subscribers), 2)
registry.unsubscribe([IB1], None, 'A2') #doesn't raise
self.assertEqual(len(registry._subscribers), 2)
def test_unsubscribe_with_value_not_None_miss(self):
IB0, IB1, IB2, IB3, IB4, IF0, IF1, IR0, IR1 = _makeInterfaces()
registry = self._makeOne()
orig = object()
nomatch = object()
registry.subscribe([IB1], None, orig)
registry.unsubscribe([IB1], None, nomatch) #doesn't raise
self.assertEqual(len(registry._subscribers), 2)
class LookupBaseFallbackTests(unittest.TestCase):
def _getTargetClass(self):
from zope.interface.adapter import LookupBaseFallback
return LookupBaseFallback
def _makeOne(self, uc_lookup=None, uc_lookupAll=None,
uc_subscriptions=None):
if uc_lookup is None:
def uc_lookup(self, required, provided, name):
pass
if uc_lookupAll is None:
def uc_lookupAll(self, required, provided):
pass
if uc_subscriptions is None:
def uc_subscriptions(self, required, provided):
pass
class Derived(self._getTargetClass()):
_uncached_lookup = uc_lookup
_uncached_lookupAll = uc_lookupAll
_uncached_subscriptions = uc_subscriptions
return Derived()
def test_lookup_miss_no_default(self):
_called_with = []
def _lookup(self, required, provided, name):
_called_with.append((required, provided, name))
return None
lb = self._makeOne(uc_lookup=_lookup)
found = lb.lookup(('A',), 'B', 'C')
self.assertTrue(found is None)
self.assertEqual(_called_with, [(('A',), 'B', 'C')])
def test_lookup_miss_w_default(self):
_called_with = []
_default = object()
def _lookup(self, required, provided, name):
_called_with.append((required, provided, name))
return None
lb = self._makeOne(uc_lookup=_lookup)
found = lb.lookup(('A',), 'B', 'C', _default)
self.assertTrue(found is _default)
self.assertEqual(_called_with, [(('A',), 'B', 'C')])
def test_lookup_not_cached(self):
_called_with = []
a, b, c = object(), object(), object()
_results = [a, b, c]
def _lookup(self, required, provided, name):
_called_with.append((required, provided, name))
return _results.pop(0)
lb = self._makeOne(uc_lookup=_lookup)
found = lb.lookup(('A',), 'B', 'C')
self.assertTrue(found is a)
self.assertEqual(_called_with, [(('A',), 'B', 'C')])
self.assertEqual(_results, [b, c])
def test_lookup_cached(self):
_called_with = []
a, b, c = object(), object(), object()
_results = [a, b, c]
def _lookup(self, required, provided, name):
_called_with.append((required, provided, name))
return _results.pop(0)
lb = self._makeOne(uc_lookup=_lookup)
found = lb.lookup(('A',), 'B', 'C')
found = lb.lookup(('A',), 'B', 'C')
self.assertTrue(found is a)
self.assertEqual(_called_with, [(('A',), 'B', 'C')])
self.assertEqual(_results, [b, c])
def test_lookup_not_cached_multi_required(self):
_called_with = []
a, b, c = object(), object(), object()
_results = [a, b, c]
def _lookup(self, required, provided, name):
_called_with.append((required, provided, name))
return _results.pop(0)
lb = self._makeOne(uc_lookup=_lookup)
found = lb.lookup(('A', 'D'), 'B', 'C')
self.assertTrue(found is a)
self.assertEqual(_called_with, [(('A', 'D'), 'B', 'C')])
self.assertEqual(_results, [b, c])
def test_lookup_cached_multi_required(self):
_called_with = []
a, b, c = object(), object(), object()
_results = [a, b, c]
def _lookup(self, required, provided, name):
_called_with.append((required, provided, name))
return _results.pop(0)
lb = self._makeOne(uc_lookup=_lookup)
found = lb.lookup(('A', 'D'), 'B', 'C')
found = lb.lookup(('A', 'D'), 'B', 'C')
self.assertTrue(found is a)
self.assertEqual(_called_with, [(('A', 'D'), 'B', 'C')])
self.assertEqual(_results, [b, c])
def test_lookup_not_cached_after_changed(self):
_called_with = []
a, b, c = object(), object(), object()
_results = [a, b, c]
def _lookup(self, required, provided, name):
_called_with.append((required, provided, name))
return _results.pop(0)
lb = self._makeOne(uc_lookup=_lookup)
found = lb.lookup(('A',), 'B', 'C')
lb.changed(lb)
found = lb.lookup(('A',), 'B', 'C')
self.assertTrue(found is b)
self.assertEqual(_called_with,
[(('A',), 'B', 'C'), (('A',), 'B', 'C')])
self.assertEqual(_results, [c])
def test_lookup1_miss_no_default(self):
_called_with = []
def _lookup(self, required, provided, name):
_called_with.append((required, provided, name))
return None
lb = self._makeOne(uc_lookup=_lookup)
found = lb.lookup1('A', 'B', 'C')
self.assertTrue(found is None)
self.assertEqual(_called_with, [(('A',), 'B', 'C')])
def test_lookup1_miss_w_default(self):
_called_with = []
_default = object()
def _lookup(self, required, provided, name):
_called_with.append((required, provided, name))
return None
lb = self._makeOne(uc_lookup=_lookup)
found = lb.lookup1('A', 'B', 'C', _default)
self.assertTrue(found is _default)
self.assertEqual(_called_with, [(('A',), 'B', 'C')])
def test_lookup1_miss_w_default_negative_cache(self):
_called_with = []
_default = object()
def _lookup(self, required, provided, name):
_called_with.append((required, provided, name))
return None
lb = self._makeOne(uc_lookup=_lookup)
found = lb.lookup1('A', 'B', 'C', _default)
self.assertTrue(found is _default)
found = lb.lookup1('A', 'B', 'C', _default)
self.assertTrue(found is _default)
self.assertEqual(_called_with, [(('A',), 'B', 'C')])
def test_lookup1_not_cached(self):
_called_with = []
a, b, c = object(), object(), object()
_results = [a, b, c]
def _lookup(self, required, provided, name):
_called_with.append((required, provided, name))
return _results.pop(0)
lb = self._makeOne(uc_lookup=_lookup)
found = lb.lookup1('A', 'B', 'C')
self.assertTrue(found is a)
self.assertEqual(_called_with, [(('A',), 'B', 'C')])
self.assertEqual(_results, [b, c])
def test_lookup1_cached(self):
_called_with = []
a, b, c = object(), object(), object()
_results = [a, b, c]
def _lookup(self, required, provided, name):
_called_with.append((required, provided, name))
return _results.pop(0)
lb = self._makeOne(uc_lookup=_lookup)
found = lb.lookup1('A', 'B', 'C')
found = lb.lookup1('A', 'B', 'C')
self.assertTrue(found is a)
self.assertEqual(_called_with, [(('A',), 'B', 'C')])
self.assertEqual(_results, [b, c])
def test_lookup1_not_cached_after_changed(self):
_called_with = []
a, b, c = object(), object(), object()
_results = [a, b, c]
def _lookup(self, required, provided, name):
_called_with.append((required, provided, name))
return _results.pop(0)
lb = self._makeOne(uc_lookup=_lookup)
found = lb.lookup1('A', 'B', 'C')
lb.changed(lb)
found = lb.lookup1('A', 'B', 'C')
self.assertTrue(found is b)
self.assertEqual(_called_with,
[(('A',), 'B', 'C'), (('A',), 'B', 'C')])
self.assertEqual(_results, [c])
def test_adapter_hook_miss_no_default(self):
req, prv = object(), object()
lb = self._makeOne()
found = lb.adapter_hook(prv, req, '')
self.assertTrue(found is None)
def test_adapter_hook_miss_w_default(self):
req, prv, _default = object(), object(), object()
lb = self._makeOne()
found = lb.adapter_hook(prv, req, '', _default)
self.assertTrue(found is _default)
def test_adapter_hook_hit_factory_returns_None(self):
_f_called_with = []
def _factory(context):
_f_called_with.append(context)
return None
def _lookup(self, required, provided, name):
return _factory
req, prv, _default = object(), object(), object()
lb = self._makeOne(uc_lookup=_lookup)
adapted = lb.adapter_hook(prv, req, 'C', _default)
self.assertTrue(adapted is _default)
self.assertEqual(_f_called_with, [req])
def test_adapter_hook_hit_factory_returns_adapter(self):
_f_called_with = []
_adapter = object()
def _factory(context):
_f_called_with.append(context)
return _adapter
def _lookup(self, required, provided, name):
return _factory
req, prv, _default = object(), object(), object()
lb = self._makeOne(uc_lookup=_lookup)
adapted = lb.adapter_hook(prv, req, 'C', _default)
self.assertTrue(adapted is _adapter)
self.assertEqual(_f_called_with, [req])
def test_queryAdapter(self):
_f_called_with = []
_adapter = object()
def _factory(context):
_f_called_with.append(context)
return _adapter
def _lookup(self, required, provided, name):
return _factory
req, prv, _default = object(), object(), object()
lb = self._makeOne(uc_lookup=_lookup)
adapted = lb.queryAdapter(req, prv, 'C', _default)
self.assertTrue(adapted is _adapter)
self.assertEqual(_f_called_with, [req])
def test_lookupAll_uncached(self):
_called_with = []
_results = [object(), object(), object()]
def _lookupAll(self, required, provided):
_called_with.append((required, provided))
return tuple(_results)
lb = self._makeOne(uc_lookupAll=_lookupAll)
found = lb.lookupAll('A', 'B')
self.assertEqual(found, tuple(_results))
self.assertEqual(_called_with, [(('A',), 'B')])
def test_lookupAll_cached(self):
_called_with = []
_results = [object(), object(), object()]
def _lookupAll(self, required, provided):
_called_with.append((required, provided))
return tuple(_results)
lb = self._makeOne(uc_lookupAll=_lookupAll)
found = lb.lookupAll('A', 'B')
found = lb.lookupAll('A', 'B')
self.assertEqual(found, tuple(_results))
self.assertEqual(_called_with, [(('A',), 'B')])
def test_subscriptions_uncached(self):
_called_with = []
_results = [object(), object(), object()]
def _subscriptions(self, required, provided):
_called_with.append((required, provided))
return tuple(_results)
lb = self._makeOne(uc_subscriptions=_subscriptions)
found = lb.subscriptions('A', 'B')
self.assertEqual(found, tuple(_results))
self.assertEqual(_called_with, [(('A',), 'B')])
def test_subscriptions_cached(self):
_called_with = []
_results = [object(), object(), object()]
def _subscriptions(self, required, provided):
_called_with.append((required, provided))
return tuple(_results)
lb = self._makeOne(uc_subscriptions=_subscriptions)
found = lb.subscriptions('A', 'B')
found = lb.subscriptions('A', 'B')
self.assertEqual(found, tuple(_results))
self.assertEqual(_called_with, [(('A',), 'B')])
class LookupBaseTests(LookupBaseFallbackTests):
def _getTargetClass(self):
from zope.interface.adapter import LookupBase
return LookupBase
class VerifyingBaseFallbackTests(unittest.TestCase):
def _getTargetClass(self):
from zope.interface.adapter import VerifyingBaseFallback
return VerifyingBaseFallback
def _makeOne(self, registry, uc_lookup=None, uc_lookupAll=None,
uc_subscriptions=None):
if uc_lookup is None:
def uc_lookup(self, required, provided, name):
pass
if uc_lookupAll is None:
def uc_lookupAll(self, required, provided):
pass
if uc_subscriptions is None:
def uc_subscriptions(self, required, provided):
pass
class Derived(self._getTargetClass()):
_uncached_lookup = uc_lookup
_uncached_lookupAll = uc_lookupAll
_uncached_subscriptions = uc_subscriptions
def __init__(self, registry):
super(Derived, self).__init__()
self._registry = registry
derived = Derived(registry)
derived.changed(derived) # init. '_verify_ro' / '_verify_generations'
return derived
def _makeRegistry(self, depth):
class WithGeneration(object):
_generation = 1
class Registry:
def __init__(self, depth):
self.ro = [WithGeneration() for i in range(depth)]
return Registry(depth)
def test_lookup(self):
_called_with = []
a, b, c = object(), object(), object()
_results = [a, b, c]
def _lookup(self, required, provided, name):
_called_with.append((required, provided, name))
return _results.pop(0)
reg = self._makeRegistry(3)
lb = self._makeOne(reg, uc_lookup=_lookup)
found = lb.lookup(('A',), 'B', 'C')
found = lb.lookup(('A',), 'B', 'C')
self.assertTrue(found is a)
self.assertEqual(_called_with, [(('A',), 'B', 'C')])
self.assertEqual(_results, [b, c])
reg.ro[1]._generation += 1
found = lb.lookup(('A',), 'B', 'C')
self.assertTrue(found is b)
self.assertEqual(_called_with,
[(('A',), 'B', 'C'), (('A',), 'B', 'C')])
self.assertEqual(_results, [c])
def test_lookup1(self):
_called_with = []
a, b, c = object(), object(), object()
_results = [a, b, c]
def _lookup(self, required, provided, name):
_called_with.append((required, provided, name))
return _results.pop(0)
reg = self._makeRegistry(3)
lb = self._makeOne(reg, uc_lookup=_lookup)
found = lb.lookup1('A', 'B', 'C')
found = lb.lookup1('A', 'B', 'C')
self.assertTrue(found is a)
self.assertEqual(_called_with, [(('A',), 'B', 'C')])
self.assertEqual(_results, [b, c])
reg.ro[1]._generation += 1
found = lb.lookup1('A', 'B', 'C')
self.assertTrue(found is b)
self.assertEqual(_called_with,
[(('A',), 'B', 'C'), (('A',), 'B', 'C')])
self.assertEqual(_results, [c])
def test_adapter_hook(self):
a, b, c = [object(), object(), object()]
def _factory1(context):
return a
def _factory2(context):
return b
def _factory3(context):
return c
_factories = [_factory1, _factory2, _factory3]
def _lookup(self, required, provided, name):
return _factories.pop(0)
req, prv, _default = object(), object(), object()
reg = self._makeRegistry(3)
lb = self._makeOne(reg, uc_lookup=_lookup)
adapted = lb.adapter_hook(prv, req, 'C', _default)
self.assertTrue(adapted is a)
adapted = lb.adapter_hook(prv, req, 'C', _default)
self.assertTrue(adapted is a)
reg.ro[1]._generation += 1
adapted = lb.adapter_hook(prv, req, 'C', _default)
self.assertTrue(adapted is b)
def test_queryAdapter(self):
a, b, c = [object(), object(), object()]
def _factory1(context):
return a
def _factory2(context):
return b
def _factory3(context):
return c
_factories = [_factory1, _factory2, _factory3]
def _lookup(self, required, provided, name):
return _factories.pop(0)
req, prv, _default = object(), object(), object()
reg = self._makeRegistry(3)
lb = self._makeOne(reg, uc_lookup=_lookup)
adapted = lb.queryAdapter(req, prv, 'C', _default)
self.assertTrue(adapted is a)
adapted = lb.queryAdapter(req, prv, 'C', _default)
self.assertTrue(adapted is a)
reg.ro[1]._generation += 1
adapted = lb.adapter_hook(prv, req, 'C', _default)
self.assertTrue(adapted is b)
def test_lookupAll(self):
_results_1 = [object(), object(), object()]
_results_2 = [object(), object(), object()]
_results = [_results_1, _results_2]
def _lookupAll(self, required, provided):
return tuple(_results.pop(0))
reg = self._makeRegistry(3)
lb = self._makeOne(reg, uc_lookupAll=_lookupAll)
found = lb.lookupAll('A', 'B')
self.assertEqual(found, tuple(_results_1))
found = lb.lookupAll('A', 'B')
self.assertEqual(found, tuple(_results_1))
reg.ro[1]._generation += 1
found = lb.lookupAll('A', 'B')
self.assertEqual(found, tuple(_results_2))
def test_subscriptions(self):
_results_1 = [object(), object(), object()]
_results_2 = [object(), object(), object()]
_results = [_results_1, _results_2]
def _subscriptions(self, required, provided):
return tuple(_results.pop(0))
reg = self._makeRegistry(3)
lb = self._makeOne(reg, uc_subscriptions=_subscriptions)
found = lb.subscriptions('A', 'B')
self.assertEqual(found, tuple(_results_1))
found = lb.subscriptions('A', 'B')
self.assertEqual(found, tuple(_results_1))
reg.ro[1]._generation += 1
found = lb.subscriptions('A', 'B')
self.assertEqual(found, tuple(_results_2))
class VerifyingBaseTests(VerifyingBaseFallbackTests):
def _getTargetClass(self):
from zope.interface.adapter import VerifyingBase
return VerifyingBase
class AdapterLookupBaseTests(unittest.TestCase):
def _getTargetClass(self):
from zope.interface.adapter import AdapterLookupBase
return AdapterLookupBase
def _makeOne(self, registry):
return self._getTargetClass()(registry)
def _makeSubregistry(self, *provided):
class Subregistry:
def __init__(self):
self._adapters = []
self._subscribers = []
return Subregistry()
def _makeRegistry(self, *provided):
class Registry:
def __init__(self, provided):
self._provided = provided
self.ro = []
return Registry(provided)
def test_ctor_empty_registry(self):
registry = self._makeRegistry()
alb = self._makeOne(registry)
self.assertEqual(alb._extendors, {})
def test_ctor_w_registry_provided(self):
from zope.interface import Interface
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
registry = self._makeRegistry(IFoo, IBar)
alb = self._makeOne(registry)
self.assertEqual(sorted(alb._extendors.keys()),
sorted([IBar, IFoo, Interface]))
self.assertEqual(alb._extendors[IFoo], [IFoo])
self.assertEqual(alb._extendors[IBar], [IBar])
self.assertEqual(sorted(alb._extendors[Interface]),
sorted([IFoo, IBar]))
def test_changed_empty_required(self):
# ALB.changed expects to call a mixed in changed.
class Mixin(object):
def changed(self, *other):
pass
class Derived(self._getTargetClass(), Mixin):
pass
registry = self._makeRegistry()
alb = Derived(registry)
alb.changed(alb)
def test_changed_w_required(self):
# ALB.changed expects to call a mixed in changed.
class Mixin(object):
def changed(self, *other):
pass
class Derived(self._getTargetClass(), Mixin):
pass
class FauxWeakref(object):
_unsub = None
def __init__(self, here):
self._here = here
def __call__(self):
if self._here:
return self
def unsubscribe(self, target):
self._unsub = target
gone = FauxWeakref(False)
here = FauxWeakref(True)
registry = self._makeRegistry()
alb = Derived(registry)
alb._required[gone] = 1
alb._required[here] = 1
alb.changed(alb)
self.assertEqual(len(alb._required), 0)
self.assertEqual(gone._unsub, None)
self.assertEqual(here._unsub, alb)
def test_init_extendors_after_registry_update(self):
from zope.interface import Interface
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
registry = self._makeRegistry()
alb = self._makeOne(registry)
registry._provided = [IFoo, IBar]
alb.init_extendors()
self.assertEqual(sorted(alb._extendors.keys()),
sorted([IBar, IFoo, Interface]))
self.assertEqual(alb._extendors[IFoo], [IFoo])
self.assertEqual(alb._extendors[IBar], [IBar])
self.assertEqual(sorted(alb._extendors[Interface]),
sorted([IFoo, IBar]))
def test_add_extendor(self):
from zope.interface import Interface
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
registry = self._makeRegistry()
alb = self._makeOne(registry)
alb.add_extendor(IFoo)
alb.add_extendor(IBar)
self.assertEqual(sorted(alb._extendors.keys()),
sorted([IBar, IFoo, Interface]))
self.assertEqual(alb._extendors[IFoo], [IFoo])
self.assertEqual(alb._extendors[IBar], [IBar])
self.assertEqual(sorted(alb._extendors[Interface]),
sorted([IFoo, IBar]))
def test_remove_extendor(self):
from zope.interface import Interface
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
registry = self._makeRegistry(IFoo, IBar)
alb = self._makeOne(registry)
alb.remove_extendor(IFoo)
self.assertEqual(sorted(alb._extendors.keys()),
sorted([IFoo, IBar, Interface]))
self.assertEqual(alb._extendors[IFoo], [])
self.assertEqual(alb._extendors[IBar], [IBar])
self.assertEqual(sorted(alb._extendors[Interface]),
sorted([IBar]))
# test '_subscribe' via its callers, '_uncached_lookup', etc.
def test__uncached_lookup_empty_ro(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
registry = self._makeRegistry()
alb = self._makeOne(registry)
result = alb._uncached_lookup((IFoo,), IBar)
self.assertEqual(result, None)
self.assertEqual(len(alb._required), 1)
self.assertTrue(IFoo.weakref() in alb._required)
def test__uncached_lookup_order_miss(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
registry = self._makeRegistry(IFoo, IBar)
subr = self._makeSubregistry()
registry.ro.append(subr)
alb = self._makeOne(registry)
result = alb._uncached_lookup((IFoo,), IBar)
self.assertEqual(result, None)
def test__uncached_lookup_extendors_miss(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
registry = self._makeRegistry()
subr = self._makeSubregistry()
subr._adapters = [{}, {}] #utilities, single adapters
registry.ro.append(subr)
alb = self._makeOne(registry)
subr._v_lookup = alb
result = alb._uncached_lookup((IFoo,), IBar)
self.assertEqual(result, None)
def test__uncached_lookup_components_miss_wrong_iface(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
IQux = InterfaceClass('IQux')
registry = self._makeRegistry(IFoo, IBar)
subr = self._makeSubregistry()
irrelevant = object()
subr._adapters = [ #utilities, single adapters
{},
{IFoo: {IQux: {'': irrelevant},
}},
]
registry.ro.append(subr)
alb = self._makeOne(registry)
subr._v_lookup = alb
result = alb._uncached_lookup((IFoo,), IBar)
self.assertEqual(result, None)
def test__uncached_lookup_components_miss_wrong_name(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
registry = self._makeRegistry(IFoo, IBar)
subr = self._makeSubregistry()
irrelevant = object()
wrongname = object()
subr._adapters = [ #utilities, single adapters
{},
{IFoo: {IBar: {'wrongname': wrongname},
}},
]
registry.ro.append(subr)
alb = self._makeOne(registry)
subr._v_lookup = alb
result = alb._uncached_lookup((IFoo,), IBar)
self.assertEqual(result, None)
def test__uncached_lookup_simple_hit(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
registry = self._makeRegistry(IFoo, IBar)
subr = self._makeSubregistry()
_expected = object()
subr._adapters = [ #utilities, single adapters
{},
{IFoo: {IBar: {'': _expected}}},
]
registry.ro.append(subr)
alb = self._makeOne(registry)
subr._v_lookup = alb
result = alb._uncached_lookup((IFoo,), IBar)
self.assertTrue(result is _expected)
def test__uncached_lookup_repeated_hit(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
registry = self._makeRegistry(IFoo, IBar)
subr = self._makeSubregistry()
_expected = object()
subr._adapters = [ #utilities, single adapters
{},
{IFoo: {IBar: {'': _expected}}},
]
registry.ro.append(subr)
alb = self._makeOne(registry)
subr._v_lookup = alb
result = alb._uncached_lookup((IFoo,), IBar)
result2 = alb._uncached_lookup((IFoo,), IBar)
self.assertTrue(result is _expected)
self.assertTrue(result2 is _expected)
def test_queryMultiAdaptor_lookup_miss(self):
from zope.interface.declarations import implementer
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
@implementer(IFoo)
class Foo(object):
pass
foo = Foo()
registry = self._makeRegistry()
subr = self._makeSubregistry()
subr._adapters = [ #utilities, single adapters
{},
{},
]
registry.ro.append(subr)
alb = self._makeOne(registry)
alb.lookup = alb._uncached_lookup # provided by derived
subr._v_lookup = alb
_default = object()
result = alb.queryMultiAdapter((foo,), IBar, default=_default)
self.assertTrue(result is _default)
def test_queryMultiAdaptor_factory_miss(self):
from zope.interface.declarations import implementer
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
@implementer(IFoo)
class Foo(object):
pass
foo = Foo()
registry = self._makeRegistry(IFoo, IBar)
subr = self._makeSubregistry()
_expected = object()
_called_with = []
def _factory(context):
_called_with.append(context)
return None
subr._adapters = [ #utilities, single adapters
{},
{IFoo: {IBar: {'': _factory}}},
]
registry.ro.append(subr)
alb = self._makeOne(registry)
alb.lookup = alb._uncached_lookup # provided by derived
subr._v_lookup = alb
_default = object()
result = alb.queryMultiAdapter((foo,), IBar, default=_default)
self.assertTrue(result is _default)
self.assertEqual(_called_with, [foo])
def test_queryMultiAdaptor_factory_hit(self):
from zope.interface.declarations import implementer
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
@implementer(IFoo)
class Foo(object):
pass
foo = Foo()
registry = self._makeRegistry(IFoo, IBar)
subr = self._makeSubregistry()
_expected = object()
_called_with = []
def _factory(context):
_called_with.append(context)
return _expected
subr._adapters = [ #utilities, single adapters
{},
{IFoo: {IBar: {'': _factory}}},
]
registry.ro.append(subr)
alb = self._makeOne(registry)
alb.lookup = alb._uncached_lookup # provided by derived
subr._v_lookup = alb
_default = object()
result = alb.queryMultiAdapter((foo,), IBar, default=_default)
self.assertTrue(result is _expected)
self.assertEqual(_called_with, [foo])
def test__uncached_lookupAll_empty_ro(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
registry = self._makeRegistry()
alb = self._makeOne(registry)
result = alb._uncached_lookupAll((IFoo,), IBar)
self.assertEqual(result, ())
self.assertEqual(len(alb._required), 1)
self.assertTrue(IFoo.weakref() in alb._required)
def test__uncached_lookupAll_order_miss(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
registry = self._makeRegistry(IFoo, IBar)
subr = self._makeSubregistry()
registry.ro.append(subr)
alb = self._makeOne(registry)
subr._v_lookup = alb
result = alb._uncached_lookupAll((IFoo,), IBar)
self.assertEqual(result, ())
def test__uncached_lookupAll_extendors_miss(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
registry = self._makeRegistry()
subr = self._makeSubregistry()
subr._adapters = [{}, {}] #utilities, single adapters
registry.ro.append(subr)
alb = self._makeOne(registry)
subr._v_lookup = alb
result = alb._uncached_lookupAll((IFoo,), IBar)
self.assertEqual(result, ())
def test__uncached_lookupAll_components_miss(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
IQux = InterfaceClass('IQux')
registry = self._makeRegistry(IFoo, IBar)
subr = self._makeSubregistry()
irrelevant = object()
subr._adapters = [ #utilities, single adapters
{},
{IFoo: {IQux: {'': irrelevant}}},
]
registry.ro.append(subr)
alb = self._makeOne(registry)
subr._v_lookup = alb
result = alb._uncached_lookupAll((IFoo,), IBar)
self.assertEqual(result, ())
def test__uncached_lookupAll_simple_hit(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
registry = self._makeRegistry(IFoo, IBar)
subr = self._makeSubregistry()
_expected = object()
_named = object()
subr._adapters = [ #utilities, single adapters
{},
{IFoo: {IBar: {'': _expected, 'named': _named}}},
]
registry.ro.append(subr)
alb = self._makeOne(registry)
subr._v_lookup = alb
result = alb._uncached_lookupAll((IFoo,), IBar)
self.assertEqual(sorted(result), [('', _expected), ('named', _named)])
def test_names(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
registry = self._makeRegistry(IFoo, IBar)
subr = self._makeSubregistry()
_expected = object()
_named = object()
subr._adapters = [ #utilities, single adapters
{},
{IFoo: {IBar: {'': _expected, 'named': _named}}},
]
registry.ro.append(subr)
alb = self._makeOne(registry)
alb.lookupAll = alb._uncached_lookupAll
subr._v_lookup = alb
result = alb.names((IFoo,), IBar)
self.assertEqual(sorted(result), ['', 'named'])
def test__uncached_subscriptions_empty_ro(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
registry = self._makeRegistry()
alb = self._makeOne(registry)
result = alb._uncached_subscriptions((IFoo,), IBar)
self.assertEqual(result, [])
self.assertEqual(len(alb._required), 1)
self.assertTrue(IFoo.weakref() in alb._required)
def test__uncached_subscriptions_order_miss(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
registry = self._makeRegistry(IFoo, IBar)
subr = self._makeSubregistry()
registry.ro.append(subr)
alb = self._makeOne(registry)
subr._v_lookup = alb
result = alb._uncached_subscriptions((IFoo,), IBar)
self.assertEqual(result, [])
def test__uncached_subscriptions_extendors_miss(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
registry = self._makeRegistry()
subr = self._makeSubregistry()
subr._subscribers = [{}, {}] #utilities, single adapters
registry.ro.append(subr)
alb = self._makeOne(registry)
subr._v_lookup = alb
result = alb._uncached_subscriptions((IFoo,), IBar)
self.assertEqual(result, [])
def test__uncached_subscriptions_components_miss_wrong_iface(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
IQux = InterfaceClass('IQux')
registry = self._makeRegistry(IFoo, IBar)
subr = self._makeSubregistry()
irrelevant = object()
subr._subscribers = [ #utilities, single adapters
{},
{IFoo: {IQux: {'': irrelevant}}},
]
registry.ro.append(subr)
alb = self._makeOne(registry)
subr._v_lookup = alb
result = alb._uncached_subscriptions((IFoo,), IBar)
self.assertEqual(result, [])
def test__uncached_subscriptions_components_miss_wrong_name(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
registry = self._makeRegistry(IFoo, IBar)
subr = self._makeSubregistry()
wrongname = object()
subr._subscribers = [ #utilities, single adapters
{},
{IFoo: {IBar: {'wrongname': wrongname}}},
]
registry.ro.append(subr)
alb = self._makeOne(registry)
subr._v_lookup = alb
result = alb._uncached_subscriptions((IFoo,), IBar)
self.assertEqual(result, [])
def test__uncached_subscriptions_simple_hit(self):
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
registry = self._makeRegistry(IFoo, IBar)
subr = self._makeSubregistry()
class Foo(object):
def __lt__(self, other):
return True
_exp1, _exp2 = Foo(), Foo()
subr._subscribers = [ #utilities, single adapters
{},
{IFoo: {IBar: {'': (_exp1, _exp2)}}},
]
registry.ro.append(subr)
alb = self._makeOne(registry)
subr._v_lookup = alb
result = alb._uncached_subscriptions((IFoo,), IBar)
self.assertEqual(sorted(result), sorted([_exp1, _exp2]))
def test_subscribers_wo_provided(self):
from zope.interface.declarations import implementer
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
@implementer(IFoo)
class Foo(object):
pass
foo = Foo()
registry = self._makeRegistry(IFoo, IBar)
registry = self._makeRegistry(IFoo, IBar)
subr = self._makeSubregistry()
_called = {}
def _factory1(context):
_called.setdefault('_factory1', []).append(context)
def _factory2(context):
_called.setdefault('_factory2', []).append(context)
subr._subscribers = [ #utilities, single adapters
{},
{IFoo: {None: {'': (_factory1, _factory2)}}},
]
registry.ro.append(subr)
alb = self._makeOne(registry)
alb.subscriptions = alb._uncached_subscriptions
subr._v_lookup = alb
result = alb.subscribers((foo,), None)
self.assertEqual(result, ())
self.assertEqual(_called, {'_factory1': [foo], '_factory2': [foo]})
def test_subscribers_w_provided(self):
from zope.interface.declarations import implementer
from zope.interface.interface import InterfaceClass
IFoo = InterfaceClass('IFoo')
IBar = InterfaceClass('IBar', IFoo)
@implementer(IFoo)
class Foo(object):
pass
foo = Foo()
registry = self._makeRegistry(IFoo, IBar)
registry = self._makeRegistry(IFoo, IBar)
subr = self._makeSubregistry()
_called = {}
_exp1, _exp2 = object(), object()
def _factory1(context):
_called.setdefault('_factory1', []).append(context)
return _exp1
def _factory2(context):
_called.setdefault('_factory2', []).append(context)
return _exp2
def _side_effect_only(context):
_called.setdefault('_side_effect_only', []).append(context)
return None
subr._subscribers = [ #utilities, single adapters
{},
{IFoo: {IBar: {'': (_factory1, _factory2, _side_effect_only)}}},
]
registry.ro.append(subr)
alb = self._makeOne(registry)
alb.subscriptions = alb._uncached_subscriptions
subr._v_lookup = alb
result = alb.subscribers((foo,), IBar)
self.assertEqual(result, [_exp1, _exp2])
self.assertEqual(_called,
{'_factory1': [foo],
'_factory2': [foo],
'_side_effect_only': [foo],
})
class AdapterRegistryTests(unittest.TestCase):
def _getTargetClass(self):
from zope.interface.adapter import AdapterRegistry
return AdapterRegistry
def _makeOne(self, *args, **kw):
return self._getTargetClass()(*args, **kw)
def test_ctor_no_bases(self):
ar = self._makeOne()
self.assertEqual(len(ar._v_subregistries), 0)
def test_ctor_w_bases(self):
base = self._makeOne()
sub = self._makeOne([base])
self.assertEqual(len(sub._v_subregistries), 0)
self.assertEqual(len(base._v_subregistries), 1)
self.assertTrue(sub in base._v_subregistries)
# test _addSubregistry / _removeSubregistry via only caller, _setBases
def test__setBases_removing_existing_subregistry(self):
before = self._makeOne()
after = self._makeOne()
sub = self._makeOne([before])
sub.__bases__ = [after]
self.assertEqual(len(before._v_subregistries), 0)
self.assertEqual(len(after._v_subregistries), 1)
self.assertTrue(sub in after._v_subregistries)
def test__setBases_wo_stray_entry(self):
before = self._makeOne()
stray = self._makeOne()
after = self._makeOne()
sub = self._makeOne([before])
sub.__dict__['__bases__'].append(stray)
sub.__bases__ = [after]
self.assertEqual(len(before._v_subregistries), 0)
self.assertEqual(len(after._v_subregistries), 1)
self.assertTrue(sub in after._v_subregistries)
def test__setBases_w_existing_entry_continuing(self):
before = self._makeOne()
after = self._makeOne()
sub = self._makeOne([before])
sub.__bases__ = [before, after]
self.assertEqual(len(before._v_subregistries), 1)
self.assertEqual(len(after._v_subregistries), 1)
self.assertTrue(sub in before._v_subregistries)
self.assertTrue(sub in after._v_subregistries)
def test_changed_w_subregistries(self):
base = self._makeOne()
class Derived(object):
_changed = None
def changed(self, originally_changed):
self._changed = originally_changed
derived1, derived2 = Derived(), Derived()
base._addSubregistry(derived1)
base._addSubregistry(derived2)
orig = object()
base.changed(orig)
self.assertTrue(derived1._changed is orig)
self.assertTrue(derived2._changed is orig)
class Test_utils(unittest.TestCase):
def test__convert_None_to_Interface_w_None(self):
from zope.interface.adapter import _convert_None_to_Interface
from zope.interface.interface import Interface
self.assertTrue(_convert_None_to_Interface(None) is Interface)
def test__convert_None_to_Interface_w_other(self):
from zope.interface.adapter import _convert_None_to_Interface
other = object()
self.assertTrue(_convert_None_to_Interface(other) is other)
def test__normalize_name_str(self):
import sys
from zope.interface.adapter import _normalize_name
STR = b'str'
if sys.version_info[0] < 3:
self.assertEqual(_normalize_name(STR), unicode(STR))
else:
self.assertEqual(_normalize_name(STR), str(STR, 'ascii'))
def test__normalize_name_unicode(self):
from zope.interface.adapter import _normalize_name
USTR = u'ustr'
self.assertEqual(_normalize_name(USTR), USTR)
def test__normalize_name_other(self):
from zope.interface.adapter import _normalize_name
for other in 1, 1.0, (), [], {}, object():
self.assertRaises(TypeError, _normalize_name, other)
# _lookup, _lookupAll, and _subscriptions tested via their callers
# (AdapterLookupBase.{lookup,lookupAll,subscriptions}).
def test_suite():
return unittest.TestSuite((
unittest.makeSuite(BaseAdapterRegistryTests),
unittest.makeSuite(LookupBaseFallbackTests),
unittest.makeSuite(LookupBaseTests),
unittest.makeSuite(VerifyingBaseFallbackTests),
unittest.makeSuite(VerifyingBaseTests),
unittest.makeSuite(AdapterLookupBaseTests),
unittest.makeSuite(AdapterRegistryTests),
unittest.makeSuite(Test_utils),
))
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