diff --git a/tests/storage/test_background_update.py b/tests/storage/test_background_update.py
index 9fdf54ea31..5cf18b690e 100644
--- a/tests/storage/test_background_update.py
+++ b/tests/storage/test_background_update.py
@@ -14,12 +14,15 @@
from unittest.mock import Mock
+import yaml
+
from twisted.internet.defer import Deferred, ensureDeferred
from synapse.storage.background_updates import BackgroundUpdater
from tests import unittest
from tests.test_utils import make_awaitable, simple_async_mock
+from tests.unittest import override_config
class BackgroundUpdateTestCase(unittest.HomeserverTestCase):
@@ -34,6 +37,19 @@ class BackgroundUpdateTestCase(unittest.HomeserverTestCase):
self.updates.register_background_update_handler(
"test_update", self.update_handler
)
+ self.store = self.hs.get_datastores().main
+
+ async def update(self, progress, count):
+ duration_ms = 10
+ await self.clock.sleep((count * duration_ms) / 1000)
+ progress = {"my_key": progress["my_key"] + 1}
+ await self.store.db_pool.runInteraction(
+ "update_progress",
+ self.updates._background_update_progress_txn,
+ "test_update",
+ progress,
+ )
+ return count
def test_do_background_update(self):
# the time we claim it takes to update one item when running the update
@@ -42,27 +58,14 @@ class BackgroundUpdateTestCase(unittest.HomeserverTestCase):
# the target runtime for each bg update
target_background_update_duration_ms = 100
- store = self.hs.get_datastores().main
self.get_success(
- store.db_pool.simple_insert(
+ self.store.db_pool.simple_insert(
"background_updates",
values={"update_name": "test_update", "progress_json": '{"my_key": 1}'},
)
)
- # first step: make a bit of progress
- async def update(progress, count):
- await self.clock.sleep((count * duration_ms) / 1000)
- progress = {"my_key": progress["my_key"] + 1}
- await store.db_pool.runInteraction(
- "update_progress",
- self.updates._background_update_progress_txn,
- "test_update",
- progress,
- )
- return count
-
- self.update_handler.side_effect = update
+ self.update_handler.side_effect = self.update
self.update_handler.reset_mock()
res = self.get_success(
self.updates.do_next_background_update(False),
@@ -72,7 +75,7 @@ class BackgroundUpdateTestCase(unittest.HomeserverTestCase):
# on the first call, we should get run with the default background update size
self.update_handler.assert_called_once_with(
- {"my_key": 1}, self.updates.DEFAULT_BACKGROUND_BATCH_SIZE
+ {"my_key": 1}, self.updates.default_background_batch_size
)
# second step: complete the update
@@ -99,6 +102,224 @@ class BackgroundUpdateTestCase(unittest.HomeserverTestCase):
self.assertTrue(result)
self.assertFalse(self.update_handler.called)
+ @override_config(
+ yaml.safe_load(
+ """
+ background_updates:
+ default_batch_size: 20
+ """
+ )
+ )
+ def test_background_update_default_batch_set_by_config(self):
+ """
+ Test that the background update is run with the default_batch_size set by the config
+ """
+
+ self.get_success(
+ self.store.db_pool.simple_insert(
+ "background_updates",
+ values={"update_name": "test_update", "progress_json": '{"my_key": 1}'},
+ )
+ )
+
+ self.update_handler.side_effect = self.update
+ self.update_handler.reset_mock()
+ res = self.get_success(
+ self.updates.do_next_background_update(False),
+ by=0.01,
+ )
+ self.assertFalse(res)
+
+ # on the first call, we should get run with the default background update size specified in the config
+ self.update_handler.assert_called_once_with({"my_key": 1}, 20)
+
+ def test_background_update_default_sleep_behavior(self):
+ """
+ Test default background update behavior, which is to sleep
+ """
+
+ self.get_success(
+ self.store.db_pool.simple_insert(
+ "background_updates",
+ values={"update_name": "test_update", "progress_json": '{"my_key": 1}'},
+ )
+ )
+
+ self.update_handler.side_effect = self.update
+ self.update_handler.reset_mock()
+ self.updates.start_doing_background_updates(),
+
+ # 2: advance the reactor less than the default sleep duration (1000ms)
+ self.reactor.pump([0.5])
+ # check that an update has not been run
+ self.update_handler.assert_not_called()
+
+ # advance reactor past default sleep duration
+ self.reactor.pump([1])
+ # check that update has been run
+ self.update_handler.assert_called()
+
+ @override_config(
+ yaml.safe_load(
+ """
+ background_updates:
+ sleep_duration_ms: 500
+ """
+ )
+ )
+ def test_background_update_sleep_set_in_config(self):
+ """
+ Test that changing the sleep time in the config changes how long it sleeps
+ """
+
+ self.get_success(
+ self.store.db_pool.simple_insert(
+ "background_updates",
+ values={"update_name": "test_update", "progress_json": '{"my_key": 1}'},
+ )
+ )
+
+ self.update_handler.side_effect = self.update
+ self.update_handler.reset_mock()
+ self.updates.start_doing_background_updates(),
+
+ # 2: advance the reactor less than the configured sleep duration (500ms)
+ self.reactor.pump([0.45])
+ # check that an update has not been run
+ self.update_handler.assert_not_called()
+
+ # advance reactor past config sleep duration but less than default duration
+ self.reactor.pump([0.75])
+ # check that update has been run
+ self.update_handler.assert_called()
+
+ @override_config(
+ yaml.safe_load(
+ """
+ background_updates:
+ sleep_enabled: false
+ """
+ )
+ )
+ def test_disabling_background_update_sleep(self):
+ """
+ Test that disabling sleep in the config results in bg update not sleeping
+ """
+
+ self.get_success(
+ self.store.db_pool.simple_insert(
+ "background_updates",
+ values={"update_name": "test_update", "progress_json": '{"my_key": 1}'},
+ )
+ )
+
+ self.update_handler.side_effect = self.update
+ self.update_handler.reset_mock()
+ self.updates.start_doing_background_updates(),
+
+ # 2: advance the reactor very little
+ self.reactor.pump([0.025])
+ # check that an update has run
+ self.update_handler.assert_called()
+
+ @override_config(
+ yaml.safe_load(
+ """
+ background_updates:
+ background_update_duration_ms: 500
+ """
+ )
+ )
+ def test_background_update_duration_set_in_config(self):
+ """
+ Test that the desired duration set in the config is used in determining batch size
+ """
+ # Duration of one background update item
+ duration_ms = 10
+
+ self.get_success(
+ self.store.db_pool.simple_insert(
+ "background_updates",
+ values={"update_name": "test_update", "progress_json": '{"my_key": 1}'},
+ )
+ )
+
+ self.update_handler.side_effect = self.update
+ self.update_handler.reset_mock()
+ res = self.get_success(
+ self.updates.do_next_background_update(False),
+ by=0.02,
+ )
+ self.assertFalse(res)
+
+ # the first update was run with the default batch size, this should be run with 500ms as the
+ # desired duration
+ async def update(progress, count):
+ self.assertEqual(progress, {"my_key": 2})
+ self.assertAlmostEqual(
+ count,
+ 500 / duration_ms,
+ places=0,
+ )
+ await self.updates._end_background_update("test_update")
+ return count
+
+ self.update_handler.side_effect = update
+ self.get_success(self.updates.do_next_background_update(False))
+
+ @override_config(
+ yaml.safe_load(
+ """
+ background_updates:
+ min_batch_size: 5
+ """
+ )
+ )
+ def test_background_update_min_batch_set_in_config(self):
+ """
+ Test that the minimum batch size set in the config is used
+ """
+ # a very long-running individual update
+ duration_ms = 50
+
+ self.get_success(
+ self.store.db_pool.simple_insert(
+ "background_updates",
+ values={"update_name": "test_update", "progress_json": '{"my_key": 1}'},
+ )
+ )
+
+ # Run the update with the long-running update item
+ async def update(progress, count):
+ await self.clock.sleep((count * duration_ms) / 1000)
+ progress = {"my_key": progress["my_key"] + 1}
+ await self.store.db_pool.runInteraction(
+ "update_progress",
+ self.updates._background_update_progress_txn,
+ "test_update",
+ progress,
+ )
+ return count
+
+ self.update_handler.side_effect = update
+ self.update_handler.reset_mock()
+ res = self.get_success(
+ self.updates.do_next_background_update(False),
+ by=1,
+ )
+ self.assertFalse(res)
+
+ # the first update was run with the default batch size, this should be run with minimum batch size
+ # as the first items took a very long time
+ async def update(progress, count):
+ self.assertEqual(progress, {"my_key": 2})
+ self.assertEqual(count, 5)
+ await self.updates._end_background_update("test_update")
+ return count
+
+ self.update_handler.side_effect = update
+ self.get_success(self.updates.do_next_background_update(False))
+
class BackgroundUpdateControllerTestCase(unittest.HomeserverTestCase):
def prepare(self, reactor, clock, homeserver):
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