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##############################################################################
#
# Copyright (c) 2012 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.
#
##############################################################################
"""Tests for z.c.hooks
"""
import unittest
class Test_read_property(unittest.TestCase):
def _getTargetClass(self):
from zope.component.hooks import read_property
return read_property
def test_via_instance(self):
class Foo(object):
@self._getTargetClass()
def bar(self):
return 'BAR'
foo = Foo()
self.assertEqual(foo.bar, 'BAR')
foo.bar = 'BAZ'
self.assertEqual(foo.bar, 'BAZ')
del foo.bar
self.assertEqual(foo.bar, 'BAR')
def test_via_class(self):
class Foo(object):
@self._getTargetClass()
def bar(self):
return 'BAR'
bar = Foo.bar
self.assertTrue(isinstance(bar, self._getTargetClass()))
self.assertEqual(bar.func(object()), 'BAR')
class SiteInfoTests(unittest.TestCase):
def _getTargetClass(self):
from zope.component.hooks import SiteInfo
return SiteInfo
def _makeOne(self):
return self._getTargetClass()()
def test_initial(self):
from zope.component.globalregistry import getGlobalSiteManager
gsm = getGlobalSiteManager()
si = self._makeOne()
self.assertEqual(si.site, None)
self.assertTrue(si.sm is gsm)
def test_adapter_hook(self):
_hook = object()
class _Registry(object):
adapter_hook = _hook
class _SiteManager(object):
adapters = _Registry()
si = self._makeOne()
si.sm = _SiteManager()
self.assertFalse('adapter_hook' in si.__dict__)
self.assertTrue(si.adapter_hook is _hook)
self.assertTrue('adapter_hook' in si.__dict__)
del si.adapter_hook
self.assertFalse('adapter_hook' in si.__dict__)
class Test_setSite(unittest.TestCase):
def _callFUT(self, site):
from zope.component.hooks import setSite
return setSite(site)
def test_w_None(self):
from zope.component import hooks
from zope.component.globalregistry import getGlobalSiteManager
gsm = getGlobalSiteManager()
_SM2 = object()
_SITE = object()
_HOOK = object()
siteinfo = _DummySiteInfo()
siteinfo.sm = _SM2
siteinfo.site = _SITE
siteinfo.adapterhook = _HOOK
with _Monkey(hooks, siteinfo=siteinfo):
self._callFUT(None)
self.assertTrue(siteinfo.sm is gsm)
self.assertTrue(siteinfo.site is None)
self.assertFalse('adapter_hook' in siteinfo.__dict__)
def test_w_site(self):
from zope.component import hooks
_SM2 = object()
class _Site(object):
def getSiteManager(self):
return _SM2
siteinfo = _DummySiteInfo()
_site = _Site()
with _Monkey(hooks, siteinfo=siteinfo):
self._callFUT(_site)
self.assertTrue(siteinfo.sm is _SM2)
self.assertTrue(siteinfo.site is _site)
self.assertFalse('adapter_hook' in siteinfo.__dict__)
class Test_getSite(unittest.TestCase):
def _callFUT(self):
from zope.component.hooks import getSite
return getSite()
def test_w_None(self):
from zope.component import hooks
from zope.component.globalregistry import getGlobalSiteManager
gsm = getGlobalSiteManager()
siteinfo = _DummySiteInfo()
with _Monkey(hooks, siteinfo=siteinfo):
self.assertTrue(self._callFUT() is None)
def test_w_site(self):
from zope.component import hooks
from zope.component.globalregistry import getGlobalSiteManager
gsm = getGlobalSiteManager()
_SM2 = object()
_SITE = object()
siteinfo = _DummySiteInfo()
siteinfo.sm = _SM2
siteinfo.site = _SITE
with _Monkey(hooks, siteinfo=siteinfo):
self.assertTrue(self._callFUT() is _SITE)
class Test_site(unittest.TestCase):
def _callFUT(self, new_site):
from zope.component.hooks import site
return site(new_site)
def test_it(self):
from zope.component import hooks
from zope.component.globalregistry import getGlobalSiteManager
gsm = getGlobalSiteManager()
_SM2 = object()
class _Site(object):
def getSiteManager(self):
return _SM2
_site = _Site()
siteinfo = _DummySiteInfo()
self.assertTrue(siteinfo.site is None)
self.assertTrue(siteinfo.sm is _SM)
with _Monkey(hooks, siteinfo=siteinfo):
with self._callFUT(_site):
self.assertTrue(siteinfo.site is _site)
self.assertTrue(siteinfo.sm is _SM2)
self.assertTrue(siteinfo.site is None)
self.assertTrue(siteinfo.sm is gsm)
class Test_getSiteManager(unittest.TestCase):
def _callFUT(self, context=None):
from zope.component.hooks import getSiteManager
return getSiteManager(context)
def test_default(self):
from zope.component import hooks
from zope.component.globalregistry import getGlobalSiteManager
gsm = getGlobalSiteManager()
_SM2 = object()
siteinfo = _DummySiteInfo()
siteinfo.sm = _SM2
with _Monkey(hooks, siteinfo=siteinfo):
self.assertTrue(self._callFUT() is _SM2)
def test_w_explicit_context_no_IComponentLookup(self):
from zope.component import hooks
from zope.component.globalregistry import getGlobalSiteManager
gsm = getGlobalSiteManager()
_SM2 = object()
siteinfo = _DummySiteInfo()
siteinfo.sm = _SM2
with _Monkey(hooks, siteinfo=siteinfo):
self.assertTrue(self._callFUT(object()) is gsm)
def test_w_explicit_context_w_IComponentLookup(self):
from zope.interface import Interface
from zope.component import hooks
from zope.component.globalregistry import getGlobalSiteManager
from zope.component.interfaces import IComponentLookup
class _Lookup(object):
def __init__(self, context):
self.context = context
gsm = getGlobalSiteManager()
gsm.registerAdapter(_Lookup, (Interface,), IComponentLookup, '')
_SM2 = object()
siteinfo = _DummySiteInfo()
siteinfo.sm = _SM2
context = object()
with _Monkey(hooks, siteinfo=siteinfo):
sm = self._callFUT(context)
self.assertTrue(isinstance(sm, _Lookup))
self.assertTrue(sm.context is context)
class Test_adapter_hook(unittest.TestCase):
def _callFUT(self, interface, object, name='', default=None):
from zope.component.hooks import adapter_hook
return adapter_hook(interface, object, name, default)
def test_success(self):
from zope.interface import Interface
from zope.component import hooks
from zope.component.globalregistry import getGlobalSiteManager
class IFoo(Interface):
pass
gsm = getGlobalSiteManager()
_ADAPTER = object()
_DEFAULT = object()
_CONTEXT = object()
_called = []
def _adapter_hook(interface, object, name, default):
_called.append((interface, object, name, default))
return _ADAPTER
siteinfo = _DummySiteInfo()
siteinfo.adapter_hook = _adapter_hook
with _Monkey(hooks, siteinfo=siteinfo):
adapter = self._callFUT(IFoo, _CONTEXT, 'bar', _DEFAULT)
self.assertTrue(adapter is _ADAPTER)
self.assertEqual(_called, [(IFoo, _CONTEXT, 'bar', _DEFAULT)])
def test_hook_raises(self):
from zope.interface import Interface
from zope.component import hooks
from zope.component.globalregistry import getGlobalSiteManager
from zope.component.interfaces import ComponentLookupError
class IFoo(Interface):
pass
gsm = getGlobalSiteManager()
_DEFAULT = object()
_CONTEXT = object()
_called = []
def _adapter_hook(interface, object, name, default):
_called.append((interface, object, name, default))
raise ComponentLookupError('testing')
siteinfo = _DummySiteInfo()
siteinfo.adapter_hook = _adapter_hook
with _Monkey(hooks, siteinfo=siteinfo):
adapter = self._callFUT(IFoo, _CONTEXT, 'bar', _DEFAULT)
self.assertTrue(adapter is _DEFAULT)
self.assertEqual(_called, [(IFoo, _CONTEXT, 'bar', _DEFAULT)])
class Test_setHooks(unittest.TestCase):
def _callFUT(self):
from zope.component.hooks import setHooks
return setHooks()
def test_it(self):
import zope.component._api
from zope.component import hooks
class _Hook(object):
def __init__(self):
self._hooked = None
def sethook(self, value):
self._hooked = value
adapter_hook = _Hook()
getSiteManager = _Hook()
with _Monkey(zope.component._api,
adapter_hook=adapter_hook,
getSiteManager=getSiteManager):
self._callFUT()
self.assertEqual(adapter_hook._hooked, hooks.adapter_hook)
self.assertEqual(getSiteManager._hooked, hooks.getSiteManager)
class Test_resetHooks(unittest.TestCase):
def _callFUT(self):
from zope.component.hooks import resetHooks
return resetHooks()
def test_it(self):
import zope.component._api
class _Hook(object):
def __init__(self):
self._reset = False
def reset(self):
self._reset = True
adapter_hook = _Hook()
getSiteManager = _Hook()
with _Monkey(zope.component._api,
adapter_hook=adapter_hook,
getSiteManager=getSiteManager):
self._callFUT()
self.assertTrue(adapter_hook._reset)
self.assertTrue(getSiteManager._reset)
_SM = object()
class _DummySiteInfo(object):
sm = _SM
site = None
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)
def test_suite():
return unittest.TestSuite((
unittest.makeSuite(Test_read_property),
unittest.makeSuite(SiteInfoTests),
unittest.makeSuite(Test_setSite),
unittest.makeSuite(Test_getSite),
unittest.makeSuite(Test_site),
unittest.makeSuite(Test_getSiteManager),
unittest.makeSuite(Test_adapter_hook),
unittest.makeSuite(Test_setHooks),
unittest.makeSuite(Test_resetHooks),
))