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-rw-r--r--tests/appservice/test_scheduler.py11
-rw-r--r--tests/storage/test_event_push_actions.py1
-rw-r--r--tests/util/test_logcontext.py66
3 files changed, 64 insertions, 14 deletions
diff --git a/tests/appservice/test_scheduler.py b/tests/appservice/test_scheduler.py
index e5a902f734..9181692771 100644
--- a/tests/appservice/test_scheduler.py
+++ b/tests/appservice/test_scheduler.py
@@ -17,6 +17,8 @@ from synapse.appservice.scheduler import (
     _ServiceQueuer, _TransactionController, _Recoverer
 )
 from twisted.internet import defer
+
+from synapse.util.logcontext import make_deferred_yieldable
 from ..utils import MockClock
 from mock import Mock
 from tests import unittest
@@ -204,7 +206,9 @@ class ApplicationServiceSchedulerQueuerTestCase(unittest.TestCase):
 
     def test_send_single_event_with_queue(self):
         d = defer.Deferred()
-        self.txn_ctrl.send = Mock(return_value=d)
+        self.txn_ctrl.send = Mock(
+            side_effect=lambda x, y: make_deferred_yieldable(d),
+        )
         service = Mock(id=4)
         event = Mock(event_id="first")
         event2 = Mock(event_id="second")
@@ -235,7 +239,10 @@ class ApplicationServiceSchedulerQueuerTestCase(unittest.TestCase):
         srv_2_event2 = Mock(event_id="srv2b")
 
         send_return_list = [srv_1_defer, srv_2_defer]
-        self.txn_ctrl.send = Mock(side_effect=lambda x, y: send_return_list.pop(0))
+
+        def do_send(x, y):
+            return make_deferred_yieldable(send_return_list.pop(0))
+        self.txn_ctrl.send = Mock(side_effect=do_send)
 
         # send events for different ASes and make sure they are sent
         self.queuer.enqueue(srv1, srv_1_event)
diff --git a/tests/storage/test_event_push_actions.py b/tests/storage/test_event_push_actions.py
index 575374c6a6..9962ce8a5d 100644
--- a/tests/storage/test_event_push_actions.py
+++ b/tests/storage/test_event_push_actions.py
@@ -128,7 +128,6 @@ class EventPushActionsStoreTestCase(tests.unittest.TestCase):
         yield _rotate(10)
         yield _assert_counts(1, 1)
 
-    @tests.unittest.DEBUG
     @defer.inlineCallbacks
     def test_find_first_stream_ordering_after_ts(self):
         def add_event(so, ts):
diff --git a/tests/util/test_logcontext.py b/tests/util/test_logcontext.py
index 4850722bc5..ad78d884e0 100644
--- a/tests/util/test_logcontext.py
+++ b/tests/util/test_logcontext.py
@@ -36,24 +36,28 @@ class LoggingContextTestCase(unittest.TestCase):
             yield sleep(0)
             self._check_test_key("one")
 
-    def _test_preserve_fn(self, function):
+    def _test_run_in_background(self, function):
         sentinel_context = LoggingContext.current_context()
 
         callback_completed = [False]
 
-        @defer.inlineCallbacks
-        def cb():
+        def test():
             context_one.request = "one"
-            yield function()
-            self._check_test_key("one")
+            d = function()
 
-            callback_completed[0] = True
+            def cb(res):
+                self._check_test_key("one")
+                callback_completed[0] = True
+                return res
+            d.addCallback(cb)
+
+            return d
 
         with LoggingContext() as context_one:
             context_one.request = "one"
 
             # fire off function, but don't wait on it.
-            logcontext.preserve_fn(cb)()
+            logcontext.run_in_background(test)
 
             self._check_test_key("one")
 
@@ -80,20 +84,30 @@ class LoggingContextTestCase(unittest.TestCase):
         # test is done once d2 finishes
         return d2
 
-    def test_preserve_fn_with_blocking_fn(self):
+    def test_run_in_background_with_blocking_fn(self):
         @defer.inlineCallbacks
         def blocking_function():
             yield sleep(0)
 
-        return self._test_preserve_fn(blocking_function)
+        return self._test_run_in_background(blocking_function)
 
-    def test_preserve_fn_with_non_blocking_fn(self):
+    def test_run_in_background_with_non_blocking_fn(self):
         @defer.inlineCallbacks
         def nonblocking_function():
             with logcontext.PreserveLoggingContext():
                 yield defer.succeed(None)
 
-        return self._test_preserve_fn(nonblocking_function)
+        return self._test_run_in_background(nonblocking_function)
+
+    def test_run_in_background_with_chained_deferred(self):
+        # a function which returns a deferred which looks like it has been
+        # called, but is actually paused
+        def testfunc():
+            return logcontext.make_deferred_yieldable(
+                _chained_deferred_function()
+            )
+
+        return self._test_run_in_background(testfunc)
 
     @defer.inlineCallbacks
     def test_make_deferred_yieldable(self):
@@ -119,6 +133,22 @@ class LoggingContextTestCase(unittest.TestCase):
             self._check_test_key("one")
 
     @defer.inlineCallbacks
+    def test_make_deferred_yieldable_with_chained_deferreds(self):
+        sentinel_context = LoggingContext.current_context()
+
+        with LoggingContext() as context_one:
+            context_one.request = "one"
+
+            d1 = logcontext.make_deferred_yieldable(_chained_deferred_function())
+            # make sure that the context was reset by make_deferred_yieldable
+            self.assertIs(LoggingContext.current_context(), sentinel_context)
+
+            yield d1
+
+            # now it should be restored
+            self._check_test_key("one")
+
+    @defer.inlineCallbacks
     def test_make_deferred_yieldable_on_non_deferred(self):
         """Check that make_deferred_yieldable does the right thing when its
         argument isn't actually a deferred"""
@@ -132,3 +162,17 @@ class LoggingContextTestCase(unittest.TestCase):
             r = yield d1
             self.assertEqual(r, "bum")
             self._check_test_key("one")
+
+
+# a function which returns a deferred which has been "called", but
+# which had a function which returned another incomplete deferred on
+# its callback list, so won't yet call any other new callbacks.
+def _chained_deferred_function():
+    d = defer.succeed(None)
+
+    def cb(res):
+        d2 = defer.Deferred()
+        reactor.callLater(0, d2.callback, res)
+        return d2
+    d.addCallback(cb)
+    return d