change websocket task storage from set to list to ensure ordered task management

Author: firstof9

openevsehttp/client.py

@@ -210,20 +210,20 @@ async def _start_listening(self):
 
         if not self._ws_listening and not active_tasks:
             _LOGGER.debug("Setting up websocket ping...")
-            self.tasks = {
+            self.tasks = [
                 self._loop.create_task(self.websocket.listen()),
                 self._loop.create_task(self.repeat(300, self.websocket.keepalive)),
-            }
+            ]
         elif active_tasks:
             _LOGGER.debug("Cleaning up orphaned websocket tasks before restart...")
             for task in active_tasks:
                 if not task.done():
                     task.cancel()
             await asyncio.gather(*active_tasks, return_exceptions=True)
-            self.tasks = {
+            self.tasks = [
                 self._loop.create_task(self.websocket.listen()),
                 self._loop.create_task(self.repeat(300, self.websocket.keepalive)),
-            }
+            ]
 
     async def _update_status(self, msgtype, data, error):
         """Update data from websocket listener."""

tests/test_client.py

@@ -2218,7 +2218,7 @@ async def dummy():
             pass
 
     task = asyncio.create_task(dummy())
-    charger.tasks = {task}
+    charger.tasks = [task]
     await charger.ws_disconnect()
     assert task.cancelled() or task.done()