diff --git a/Furious/Service/ProfileTesting.py b/Furious/Service/ProfileTesting.py
index f8af4fc..860e986 100644
--- a/Furious/Service/ProfileTesting.py
+++ b/Furious/Service/ProfileTesting.py
@@ -313,14 +313,17 @@ class _LatencyScheduler(QtCore.QObject):
             self.threadPool.setMaxThreadCount(self.maxConcurrency)
 
         self.pingWorkerFactory = pingWorkerFactory
+
         self.queue = collections.deque()
         self.activeJobs = {}
         self.tcpingRequests = {}
         self.tcpingEndpointRequests = {}
         self.tcpingCompletionQueue = collections.deque()
         self.nextTcpingRequestId = 1
+
         self.tcpingThread = None
         self.tcpingEngine = None
+
         self.drainScheduled = False
         self.tcpingCompletionScheduled = False
         self.shuttingDown = False
@@ -363,6 +366,7 @@ class _LatencyScheduler(QtCore.QObject):
 
         engine = TcpingEngine(self, self.tcpingMaxConcurrency)
         thread = TcpingThread(engine, self)
+
         engine.moveToThread(thread)
 
         self.tcpingThread = thread
@@ -458,6 +462,7 @@ class _LatencyScheduler(QtCore.QObject):
             self.tcpingEndpointRequests.pop(group.endpointKey, None)
 
         self.tcpingCompletionQueue.append(requestId)
+
         self.scheduleTcpingCompletion()
 
     def scheduleTcpingCompletion(self):
diff --git a/Furious/Service/SubscriptionSync.py b/Furious/Service/SubscriptionSync.py
index 3c5d095..8e6d7d3 100644
--- a/Furious/Service/SubscriptionSync.py
+++ b/Furious/Service/SubscriptionSync.py
@@ -158,6 +158,7 @@ class SubscriptionSynchronizer:
 
             existing.connection = prepared.connection
             existing.metadata = metadata
+
             synchronized.append(existing)
 
         for removed in existingById.values():
diff --git a/Furious/Service/TcpingService.py b/Furious/Service/TcpingService.py
index 980d312..89c9b03 100644
--- a/Furious/Service/TcpingService.py
+++ b/Furious/Service/TcpingService.py
@@ -100,6 +100,7 @@ class TcpingProbe(QtCore.QObject):
 
         self.request = request
         self.completionHasRun = False
+
         self.elapsedTimer = QtCore.QElapsedTimer()
         self.socket = QTcpSocket(self)
         self.timeoutTimer = QtCore.QTimer(self)
diff --git a/tests/test_runtime_lifecycle.py b/tests/test_runtime_lifecycle.py
index 7ab02f2..c5f415d 100644
--- a/tests/test_runtime_lifecycle.py
+++ b/tests/test_runtime_lifecycle.py
@@ -106,6 +106,7 @@ class RuntimeLifecycleTest(TestCase):
         runtime = _Runtime(exitCallback=router.publish)
         router.attach(runtime, owner)
         lease = RuntimeLease(runtime, router)
+
         thread = threading.Thread(target=runtime.publishCode, args=(9,))
 
         thread.start()
@@ -114,6 +115,7 @@ class RuntimeLifecycleTest(TestCase):
         self.assertTrue(waitFor(lambda: bool(owner.events)))
         self.assertIs(owner.events[0][2], self.app.thread())
         self.assertEqual(owner.events[0][1].code, 9)
+
         lease.release()
 
     def testRouterRejectsAnUntypedRuntimeExit(self):
@@ -146,6 +148,7 @@ class RuntimeLifecycleTest(TestCase):
             for _index in range(32):
                 router = RuntimeEventRouter()
                 references.append(weakref.ref(router))
+
                 router.finishRelease()
                 router.deleteLater()
 
@@ -166,12 +169,14 @@ class RuntimeLifecycleTest(TestCase):
 
         runtime.publishCode(11)
         lease.commit(lambda current, event: committed.append((current, event)))
+
         processQtEvents()
 
         self.assertEqual(owner.events, [])
         self.assertEqual(len(committed), 1)
         self.assertIs(committed[0][0], runtime)
         self.assertEqual(committed[0][1].code, 11)
+
         lease.release()
 
     def testPostCommitDuplicateExitIsDeliveredOnce(self):
@@ -186,11 +191,13 @@ class RuntimeLifecycleTest(TestCase):
 
         runtime.publishCode(12)
         runtime.publishCode(13)
+
         processQtEvents()
 
         self.assertEqual(owner.events, [])
         self.assertEqual(len(committed), 1)
         self.assertEqual(committed[0][1].code, 12)
+
         lease.release()
 
     def testReleaseSuppressesLateQueuedExitAndIsIdempotent(self):
@@ -202,8 +209,10 @@ class RuntimeLifecycleTest(TestCase):
         lease = RuntimeLease(runtime, router)
 
         runtime.publishCode(13)
+
         lease.release()
         lease.release()
+
         processQtEvents()
 
         self.assertEqual(owner.events, [])
@@ -224,9 +233,12 @@ class RuntimeLifecycleTest(TestCase):
             runtime = _ProcessRuntime(
                 exitCallback=lambda current, event: events.append((current, event))
             )
+
             runtime.start()
+
             self.assertIs(runtime.state, RuntimeState.Alive)
             self.assertTrue(runtime.isRunning())
+
             runtime._pollProcess()
             runtime._pollProcess()
 
@@ -234,9 +246,12 @@ class RuntimeLifecycleTest(TestCase):
         self.assertIs(events[0][1].reason, RuntimeExitReason.InvalidConfiguration)
         self.assertEqual(events[0][1].code, 23)
         process.close.assert_called_once_with()
+
         runtime.dispose()
+
         self.assertIsNone(runtime._monitorConnection)
         self.assertIsNone(runtime._output._timerConnection)
+
         runtime.dispose()
 
     def testMultiprocessingSpawnFailureRaisesStructuredError(self):
@@ -255,7 +270,9 @@ class RuntimeLifecycleTest(TestCase):
 
         self.assertIs(raised.exception.reason, RuntimeExitReason.StartFailure)
         self.assertIn('fixture spawn failure', raised.exception.details)
+
         runtime.dispose()
+
         self.assertIsNone(runtime._monitorConnection)
         self.assertIsNone(runtime._output._timerConnection)
 
diff --git a/tests/test_subscription_sync.py b/tests/test_subscription_sync.py
index a353d0b..209f886 100644
--- a/tests/test_subscription_sync.py
+++ b/tests/test_subscription_sync.py
@@ -77,6 +77,7 @@ class SubscriptionSynchronizerTest(unittest.TestCase):
             key='upstream:other',
         )
         originalId = retained.metadata.profileId
+
         profiles = [manual, retained, removed, other]
         incoming = [
             profile('Remote label', 'new.example', key='upstream:one'),
@@ -151,6 +152,7 @@ class SubscriptionSynchronizerTest(unittest.TestCase):
         )
         incoming = profile('Incoming', 'new.example')
         profiles = [retained]
+
         originalMetadata = retained.metadata.toMapping()
         originalConnection = retained.connection.deepcopy()
 
@@ -169,6 +171,7 @@ class SubscriptionSynchronizerTest(unittest.TestCase):
         self.assertEqual(retained.metadata.toMapping(), originalMetadata)
         self.assertEqual(retained.connection, originalConnection)
         self.assertFalse(retained.deleted)
+
         self.assertEqual(incoming.itemSubscription, '')
         self.assertFalse(incoming.itemSubscriptionManaged)
 
@@ -183,8 +186,10 @@ class SubscriptionSynchronizerTest(unittest.TestCase):
         )
         unrelated = profile('Manual', 'manual.example')
         profiles = [retained, unrelated]
+
         snapshot = SubscriptionSynchronizer().snapshot(profiles, 'group')
         incoming = profile('After', 'new.example', key='upstream:one')
+
         plan = SubscriptionSynchronizer().prepare(snapshot, (incoming,))
 
         retained.metadata.annotations = 'edited while preparing'
@@ -194,8 +199,10 @@ class SubscriptionSynchronizerTest(unittest.TestCase):
 
         self.assertIs(profiles[0], retained)
         self.assertIs(profiles[1], unrelated)
+
         self.assertEqual(retained.connection['address'], 'new.example')
         self.assertEqual(retained.itemRemark, 'After')
+
         self.assertEqual(retained.metadata.annotations, 'edited while preparing')
         self.assertEqual(retained.metadata.latency, '41 ms')
         self.assertEqual(result.changedProfileIds, (retained.metadata.profileId,))
@@ -211,6 +218,7 @@ class SubscriptionSynchronizerTest(unittest.TestCase):
         )
         profiles = [retained]
         synchronizer = SubscriptionSynchronizer()
+
         snapshot = synchronizer.snapshot(profiles, 'group')
         plan = synchronizer.prepare(
             snapshot,