diff --git a/tests/rest/client/test_retention.py b/tests/rest/client/test_retention.py
index a040433994..d0deff5a3b 100644
--- a/tests/rest/client/test_retention.py
+++ b/tests/rest/client/test_retention.py
@@ -163,6 +163,12 @@ class RetentionTestCase(unittest.HomeserverTestCase):
self.assertEqual(filtered_events[0].event_id, valid_event_id, filtered_events)
def _test_retention_event_purged(self, room_id, increment):
+ # Get the create event to, later, check that we can still access it.
+ message_handler = self.hs.get_message_handler()
+ create_event = self.get_success(
+ message_handler.get_room_data(self.user_id, room_id, EventTypes.Create)
+ )
+
# Send a first event to the room. This is the event we'll want to be purged at the
# end of the test.
resp = self.helper.send(
@@ -201,6 +207,10 @@ class RetentionTestCase(unittest.HomeserverTestCase):
valid_event = self.get_event(room_id, valid_event_id)
self.assertEqual(valid_event.get("content", {}).get("body"), "2", valid_event)
+ # Check that we can still access state events that were sent before the event that
+ # has been purged.
+ self.get_event(room_id, create_event.event_id)
+
def get_event(self, room_id, event_id, expected_code=200):
url = "/_matrix/client/r0/rooms/%s/event/%s" % (room_id, event_id)
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