fix formatting

Author: zariiii9003

test/contextmanager_test.py

@@ -17,19 +17,21 @@ def setUp(self):
         )
 
     def test_open_buses(self):
-        with can.Bus(interface="virtual") as bus_send, can.Bus(
-            interface="virtual"
-        ) as bus_recv:
+        with (
+            can.Bus(interface="virtual") as bus_send,
+            can.Bus(interface="virtual") as bus_recv,
+        ):
             bus_send.send(self.msg_send)
             msg_recv = bus_recv.recv()
 
             # Receiving a frame with data should evaluate msg_recv to True
             self.assertTrue(msg_recv)
 
     def test_use_closed_bus(self):
-        with can.Bus(interface="virtual") as bus_send, can.Bus(
-            interface="virtual"
-        ) as bus_recv:
+        with (
+            can.Bus(interface="virtual") as bus_send,
+            can.Bus(interface="virtual") as bus_recv,
+        ):
             bus_send.send(self.msg_send)
 
         # Receiving a frame after bus has been closed should raise a CanException