diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/storage/test_id_generators.py | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/tests/storage/test_id_generators.py b/tests/storage/test_id_generators.py index 4558bee7be..392b08832b 100644 --- a/tests/storage/test_id_generators.py +++ b/tests/storage/test_id_generators.py @@ -390,17 +390,28 @@ class MultiWriterIdGeneratorTestCase(HomeserverTestCase): # Initial config has two writers id_gen = self._create_id_generator("first", writers=["first", "second"]) self.assertEqual(id_gen.get_persisted_upto_position(), 3) + self.assertEqual(id_gen.get_current_token_for_writer("first"), 3) + self.assertEqual(id_gen.get_current_token_for_writer("second"), 5) # New config removes one of the configs. Note that if the writer is # removed from config we assume that it has been shut down and has # finished persisting, hence why the persisted upto position is 5. id_gen_2 = self._create_id_generator("second", writers=["second"]) self.assertEqual(id_gen_2.get_persisted_upto_position(), 5) + self.assertEqual(id_gen_2.get_current_token_for_writer("second"), 5) # This config points to a single, previously unused writer. id_gen_3 = self._create_id_generator("third", writers=["third"]) self.assertEqual(id_gen_3.get_persisted_upto_position(), 5) + # For new writers we assume their initial position to be the current + # persisted up to position. This stops Synapse from doing a full table + # scan when a new writer comes along. + self.assertEqual(id_gen_3.get_current_token_for_writer("third"), 5) + + id_gen_4 = self._create_id_generator("fourth", writers=["third"]) + self.assertEqual(id_gen_4.get_current_token_for_writer("third"), 5) + # Check that we get a sane next stream ID with this new config. async def _get_next_async(): @@ -410,6 +421,13 @@ class MultiWriterIdGeneratorTestCase(HomeserverTestCase): self.get_success(_get_next_async()) self.assertEqual(id_gen_3.get_persisted_upto_position(), 6) + # If we add back the old "first" then we shouldn't see the persisted up + # to position revert back to 3. + id_gen_5 = self._create_id_generator("five", writers=["first", "third"]) + self.assertEqual(id_gen_5.get_persisted_upto_position(), 6) + self.assertEqual(id_gen_5.get_current_token_for_writer("first"), 6) + self.assertEqual(id_gen_5.get_current_token_for_writer("third"), 6) + def test_sequence_consistency(self): """Test that we error out if the table and sequence diverges. """ |