Correctly handle the difference between prev and current state

3 files changed, 20 insertions, 32 deletions

diff --git a/tests/replication/slave/storage/test_events.py b/tests/replication/slave/storage/test_events.py
index 218cb24889..44e859b5d1 100644
--- a/tests/replication/slave/storage/test_events.py
+++ b/tests/replication/slave/storage/test_events.py
@@ -312,7 +312,9 @@ class SlavedEventStoreTestCase(BaseSlavedStoreTestCase):
         else:
             state_ids = None
 
-        context = EventContext(current_state_ids=state_ids)
+        context = EventContext()
+        context.current_state_ids = state_ids
+        context.prev_state_ids = state_ids
         context.push_actions = push_actions
 
         ordering = None
diff --git a/tests/replication/test_resource.py b/tests/replication/test_resource.py
index e70ac6f14d..b69832cc1b 100644
--- a/tests/replication/test_resource.py
+++ b/tests/replication/test_resource.py
@@ -60,8 +60,8 @@ class ReplicationResourceCase(unittest.TestCase):
         self.assertEquals(body, {})
 
     @defer.inlineCallbacks
-    def test_events_and_state(self):
-        get = self.get(events="-1", state="-1", timeout="0")
+    def test_events(self):
+        get = self.get(events="-1", timeout="0")
         yield self.hs.get_handlers().room_creation_handler.create_room(
             synapse.types.create_requester(self.user), {}
         )
@@ -70,12 +70,6 @@ class ReplicationResourceCase(unittest.TestCase):
         self.assertEquals(body["events"]["field_names"], [
             "position", "internal", "json", "state_group"
         ])
-        self.assertEquals(body["state_groups"]["field_names"], [
-            "position", "room_id", "event_id"
-        ])
-        self.assertEquals(body["state_group_state"]["field_names"], [
-            "position", "type", "state_key", "event_id"
-        ])
 
     @defer.inlineCallbacks
     def test_presence(self):
diff --git a/tests/test_state.py b/tests/test_state.py
index de2d35145a..6454f994e3 100644
--- a/tests/test_state.py
+++ b/tests/test_state.py
@@ -86,17 +86,8 @@ class StateGroupStore(object):
 
         state_events = dict(context.current_state_ids)
 
-        if event.is_state():
-            state_events[(event.type, event.state_key)] = event.event_id
-
-        state_group = context.state_group
-        if not state_group:
-            state_group = self._next_group
-            self._next_group += 1
-
-            self._group_to_state[state_group] = state_events
-
-        self._event_to_state_group[event.event_id] = state_group
+        self._group_to_state[context.state_group] = state_events
+        self._event_to_state_group[event.event_id] = context.state_group
 
     def get_events(self, event_ids, **kwargs):
         return {
@@ -151,6 +142,7 @@ class StateTestCase(unittest.TestCase):
                 "get_state_groups_ids",
                 "add_event_hashes",
                 "get_events",
+                "get_next_state_group",
             ]
         )
         hs = Mock(spec_set=[
@@ -161,6 +153,8 @@ class StateTestCase(unittest.TestCase):
         hs.get_clock.return_value = MockClock()
         hs.get_auth.return_value = Auth(hs)
 
+        self.store.get_next_state_group.side_effect = Mock
+
         self.state = StateHandler(hs)
         self.event_id = 0
 
@@ -209,7 +203,7 @@ class StateTestCase(unittest.TestCase):
             store.store_state_groups(event, context)
             context_store[event.event_id] = context
 
-        self.assertEqual(2, len(context_store["D"].current_state_ids))
+        self.assertEqual(2, len(context_store["D"].prev_state_ids))
 
     @defer.inlineCallbacks
     def test_branch_basic_conflict(self):
@@ -265,7 +259,7 @@ class StateTestCase(unittest.TestCase):
 
         self.assertSetEqual(
             {"START", "A", "C"},
-            {e_id for e_id in context_store["D"].current_state_ids.values()}
+            {e_id for e_id in context_store["D"].prev_state_ids.values()}
         )
 
     @defer.inlineCallbacks
@@ -331,7 +325,7 @@ class StateTestCase(unittest.TestCase):
 
         self.assertSetEqual(
             {"START", "A", "B", "C"},
-            {e for e in context_store["E"].current_state_ids.values()}
+            {e for e in context_store["E"].prev_state_ids.values()}
         )
 
     @defer.inlineCallbacks
@@ -414,7 +408,7 @@ class StateTestCase(unittest.TestCase):
 
         self.assertSetEqual(
             {"A1", "A2", "A3", "A5", "B"},
-            {e for e in context_store["D"].current_state_ids.values()}
+            {e for e in context_store["D"].prev_state_ids.values()}
         )
 
     def _add_depths(self, nodes, edges):
@@ -447,7 +441,7 @@ class StateTestCase(unittest.TestCase):
             set(e.event_id for e in old_state), set(context.current_state_ids.values())
         )
 
-        self.assertIsNone(context.state_group)
+        self.assertIsNotNone(context.state_group)
 
     @defer.inlineCallbacks
     def test_annotate_with_old_state(self):
@@ -464,11 +458,9 @@ class StateTestCase(unittest.TestCase):
         )
 
         self.assertEqual(
-            set(e.event_id for e in old_state), set(context.current_state_ids.values())
+            set(e.event_id for e in old_state), set(context.prev_state_ids.values())
         )
 
-        self.assertIsNone(context.state_group)
-
     @defer.inlineCallbacks
     def test_trivial_annotate_message(self):
         event = create_event(type="test_message", name="event")
@@ -514,10 +506,10 @@ class StateTestCase(unittest.TestCase):
 
         self.assertEqual(
             set([e.event_id for e in old_state]),
-            set(context.current_state_ids.values())
+            set(context.prev_state_ids.values())
         )
 
-        self.assertIsNone(context.state_group)
+        self.assertIsNotNone(context.state_group)
 
     @defer.inlineCallbacks
     def test_resolve_message_conflict(self):
@@ -550,7 +542,7 @@ class StateTestCase(unittest.TestCase):
 
         self.assertEqual(len(context.current_state_ids), 6)
 
-        self.assertIsNone(context.state_group)
+        self.assertIsNotNone(context.state_group)
 
     @defer.inlineCallbacks
     def test_resolve_state_conflict(self):
@@ -583,7 +575,7 @@ class StateTestCase(unittest.TestCase):
 
         self.assertEqual(len(context.current_state_ids), 6)
 
-        self.assertIsNone(context.state_group)
+        self.assertIsNotNone(context.state_group)
 
     @defer.inlineCallbacks
     def test_standard_depth_conflict(self):