def test_register_topic_rename_class(self):
register_topic("eventsourcing.domain:OldClass", Aggregate)
self.assertEqual(Aggregate,
resolve_topic("eventsourcing.domain:OldClass"))
self.assertEqual(
Aggregate.Created,
resolve_topic("eventsourcing.domain:OldClass.Created"))
def test_topic_errors(self):
# Wrong module name.
with self.assertRaises(TopicError) as cm:
resolve_topic("oldmodule:Aggregate")
expected_msg = ("Failed to resolve topic 'oldmodule:Aggregate': "
"No module named 'oldmodule'")
self.assertEqual(expected_msg, cm.exception.args[0])
# Wrong class name.
with self.assertRaises(TopicError) as cm:
resolve_topic("eventsourcing.domain:OldClass")
expected_msg = (
"Failed to resolve topic 'eventsourcing.domain:OldClass': "
"module 'eventsourcing.domain' has no attribute 'OldClass'")
self.assertEqual(expected_msg, cm.exception.args[0])
# Wrong class attribute.
with self.assertRaises(TopicError) as cm:
resolve_topic("eventsourcing.domain:Aggregate.OldClass")
expected_msg = (
"Failed to resolve topic 'eventsourcing.domain:Aggregate.OldClass': "
"type object 'Aggregate' has no attribute 'OldClass'")
self.assertEqual(expected_msg, cm.exception.args[0])
# Can register same thing twice.
register_topic("old", eventsourcing)
register_topic("old", eventsourcing)
# Can't overwrite with another thing.
with self.assertRaises(TopicError) as cm:
register_topic("old", TestCase)
self.assertIn("is already registered for topic 'old'",
cm.exception.args[0])
def test_register_topic_rename_package_and_module(self):
register_topic("old.old", eventsourcing.domain)
self.assertEqual(Aggregate, resolve_topic("old.old:Aggregate"))
def test_register_topic_move_package(self):
register_topic("old.eventsourcing.domain", eventsourcing.domain)
self.assertEqual(Aggregate,
resolve_topic("old.eventsourcing.domain:Aggregate"))
def test_register_topic_rename_package(self):
register_topic("oldpackage", eventsourcing)
self.assertEqual(Aggregate,
resolve_topic("oldpackage.domain:Aggregate"))
self.assertEqual(Aggregate.Created,
resolve_topic("oldpackage.domain:Aggregate.Created"))
def test_register_topic_move_module_into_package(self):
register_topic("oldmodule", eventsourcing.domain)
self.assertEqual(Aggregate, resolve_topic("oldmodule:Aggregate"))
self.assertEqual(Aggregate.Created,
resolve_topic("oldmodule:Aggregate.Created"))