def test_default_impl_readonly(self):
alsoProvides(self.folder, IStorageEnabled)
sf = IStorageFactory(self.folder)
sf.backend = u'dummy_a'
self.assertEqual(sf.backend, u'dummy_a')
with self.assertRaises(ValueError) as cm:
sf.backend = u'dummy_b'
self.assertEqual(cm.exception.args, ('backend', 'field is readonly'))
def test_default_impl_readonly(self):
alsoProvides(self.folder, IStorageEnabled)
sf = IStorageFactory(self.folder)
sf.backend = u'dummy_a'
self.assertEqual(sf.backend, u'dummy_a')
with self.assertRaises(ValueError) as cm:
sf.backend = u'dummy_b'
self.assertEqual(cm.exception.args, ('backend', 'field is readonly'))
def install_storage(obj, event):
"""
The event handler for installing and associating a storage to an
``IStorageEnabled`` object.
"""
factory = IStorageFactory(obj)
try:
factory.get_storage_backend()
except ComponentLookupError as e:
iface, name = e.args
logger.warning(
'Could not find storage backend "%s" while creating a "%s", '
'skipping backend instantiation.', name, obj.portal_type)
else:
# the specific backend instance may do further component lookups
# and fail, which this doesn't and shouldn't care about.
factory.install_storage()
def test_storage_lifecycle(self):
# have to mark the object manually with IStorageEnabled.
# Normally dexterity behavior will provide this.
alsoProvides(self.portal, IStorageEnabled)
installer = getUtility(IStorageInstaller)
installer(self.portal, 'dummy_backend')
self.assertEqual(DummyStorageData._data.keys(), ['plone'])
sf = IStorageFactory(self.portal)
self.assertEqual(sf.backend, u'dummy_backend')
storage_backend = getUtility(IStorageBackend, name=u'dummy_backend')
storage = storage_backend.acquire(self.portal)
self.assertTrue(isinstance(storage, DummyStorage))
storage = IStorage(self.portal)
self.assertTrue(isinstance(storage, DummyStorage))
def test_default_impl_no_backend(self):
alsoProvides(self.folder, IStorageEnabled)
sf = IStorageFactory(self.folder)
with self.assertRaises(ConstraintNotSatisfied):
sf.backend = u'test'
def test_default_impl_no_backend(self):
alsoProvides(self.folder, IStorageEnabled)
sf = IStorageFactory(self.folder)
with self.assertRaises(ConstraintNotSatisfied):
sf.backend = u'test'
def test_not_enabled_fail(self):
with self.assertRaises(TypeError):
IStorageFactory(self.folder)
