def test_field_default_independence(self):
# Ensure that fields using the default value aren't being assigned
# shallow copies.
class FauxDataManager(object):
def setstate(self, obj):
pass
def oldstate(self, obj, tid):
pass
def register(self, obj):
pass
# Dummy instances
foo = Item(id=u'foo')
foo.portal_type = 'testtype'
foo._p_jar = FauxDataManager()
bar = Item(id=u'bar')
bar.portal_type = 'testtype'
bar._p_jar = FauxDataManager()
baz = Container(id=u'baz')
baz.portal_type = 'testtype'
baz._p_jar = FauxDataManager()
# Dummy schema
class ISchema(Interface):
listfield = zope.schema.List(title=u"listfield", default=[1, 2])
# FTI mock
fti_mock = self.mocker.proxy(DexterityFTI(u"testtype"))
self.expect(fti_mock.lookupSchema()).result(ISchema).count(1)
self.mock_utility(fti_mock, IDexterityFTI, name=u"testtype")
self.replay()
# Ensure that the field of foo is not the same field, also attached to
# bar.
self.assertTrue(foo.listfield is not bar.listfield)
self.assertTrue(foo.listfield is not baz.listfield)
# And just to reinforce why this is awful, we'll ensure that updating
# the field's value on one object does not change the value on the
# other.
foo.listfield.append(3)
self.assertEquals(bar.listfield, [1, 2])
self.assertEquals(baz.listfield, [1, 2])
def test_field_default_independence(self):
# Ensure that fields using the default value aren't being assigned
# shallow copies.
class FauxDataManager(object):
def setstate(self, obj):
pass
def oldstate(self, obj, tid):
pass
def register(self, obj):
pass
# Dummy instances
foo = Item(id=u'foo')
foo.portal_type = 'testtype'
foo._p_jar = FauxDataManager()
bar = Item(id=u'bar')
bar.portal_type = 'testtype'
bar._p_jar = FauxDataManager()
baz = Container(id=u'baz')
baz.portal_type = 'testtype'
baz._p_jar = FauxDataManager()
# Dummy schema
class ISchema(Interface):
listfield = zope.schema.List(title=u"listfield", default=[1, 2])
# FTI mock
fti_mock = self.mocker.proxy(DexterityFTI(u"testtype"))
self.expect(fti_mock.lookupSchema()).result(ISchema).count(1)
self.mock_utility(fti_mock, IDexterityFTI, name=u"testtype")
self.replay()
# Ensure that the field of foo is not the same field, also attached to
# bar.
self.assertTrue(foo.listfield is not bar.listfield)
self.assertTrue(foo.listfield is not baz.listfield)
# And just to reinforce why this is awful, we'll ensure that updating
# the field's value on one object does not change the value on the
# other.
foo.listfield.append(3)
self.assertEqual(bar.listfield, [1, 2])
self.assertEqual(baz.listfield, [1, 2])
def test_provided_by_item(self):
class FauxDataManager(object):
def setstate(self, obj):
pass
def oldstate(self, obj, tid):
pass
def register(self, obj):
pass
# Dummy instance
item = Item(id=u'id')
item.portal_type = 'testtype'
item._p_jar = FauxDataManager()
# Dummy schema
class ISchema(Interface):
foo = zope.schema.TextLine(title=u"foo", default=u"foo_default")
bar = zope.schema.TextLine(title=u"bar")
class IMarker(Interface):
pass
# Schema is not implemented by class or provided by instance
self.assertFalse(ISchema.implementedBy(Item))
self.assertFalse(ISchema.providedBy(item))
# FTI mock
fti_mock = self.mocker.proxy(DexterityFTI(u"testtype"))
self.expect(fti_mock.lookupSchema()).result(ISchema).count(1)
self.mock_utility(fti_mock, IDexterityFTI, name=u"testtype")
self.replay()
self.assertFalse(ISchema.implementedBy(Item))
# Schema as looked up in FTI is now provided by item ...
self.assertTrue(ISchema.providedBy(item))
# If the _v_ attribute cache does not work, then we'd expect to have
# to look up the schema more than once (since we invalidated)
# the cache. This is not the case, as evidenced by .count(1) above.
self.assertTrue(ISchema.providedBy(item))
# We also need to ensure that the _v_ attribute doesn't hide any
# interface set directly on the instance with alsoProvides() or
# directlyProvides(). This is done by clearing the cache when these
# are invoked.
alsoProvides(item, IMarker)
self.assertTrue(IMarker.providedBy(item))
self.assertTrue(ISchema.providedBy(item))
