document test

bdraco · bdraco · commit dc65112b0706 · 2021-06-18T21:07:57.000-10:00
diff --git a/tests/test_core.py b/tests/test_core.py
@@ -278,14 +278,15 @@ def on_service_state_change(zeroconf, service_type, state_change, name):
     browser = ServiceBrowser(zc, "_http._tcp.local.", [on_service_state_change])
     browser.cancel()
 
+    await asyncio.sleep(0)  # flush out any call_soon_threadsafe
     assert notify_called
     zc.remove_notify_listener(notify_listener)
 
     notify_called = 0
     # start a browser
     browser = ServiceBrowser(zc, "_http._tcp.local.", [on_service_state_change])
     browser.cancel()
-    await asyncio.sleep(0)
+    await asyncio.sleep(0)  # flush out any call_soon_threadsafe
 
     assert not notify_called
 
