User server URL as default event URL

hubitatmaker/hub.py

@@ -190,10 +190,12 @@ async def send_command(
         _LOGGER.debug("Sending command %s(%s) to %s", command, arg, device_id)
         return await self._api_request(path)
 
-    async def set_event_url(self, event_url: str) -> None:
+    async def set_event_url(self, event_url: Optional[str]) -> None:
         """Set the URL that Hubitat will POST device events to."""
-        _LOGGER.info("Setting event update URL to %s", event_url)
+        if not event_url:
+            event_url = self._server.url
         url = quote(str(event_url), safe="")
+        _LOGGER.info("Setting event update URL to %s", url)
         await self._api_request(f"postURL/{url}")
 
     async def set_hsm(self, hsm_mode: str) -> None:
@@ -378,7 +380,7 @@ async def _start_server(self) -> None:
         self._server.start()
         _LOGGER.debug("Listening on %s:%d", address, self._server.port)
 
-        await self.set_event_url(self.event_url or self._server.url)
+        await self.set_event_url(self.event_url)
 
 
 @contextmanager

hubitatmaker/tests/test_hub.py

@@ -316,3 +316,22 @@ def test_process_set_mode(self, MockServer) -> None:
 
         hub._process_event(events["mode"])
         self.assertEqual(hub.mode, "Evening")
+
+    @patch("aiohttp.request", new=fake_request)
+    @patch("getmac.get_mac_address", new=fake_get_mac_address)
+    @patch("hubitatmaker.server.Server")
+    def test_set_event_url(self, MockServer) -> None:
+        """Started hub should allow mode to be updated."""
+        server_url = "http://127.0.0.1:81"
+        MockServer.return_value.url = server_url
+        hub = Hub("1.2.3.4", "1234", "token")
+        wait_for(hub.start())
+
+        wait_for(hub.set_event_url(None))
+        event_url = unquote(requests[-1]["url"])
+        self.assertRegex(event_url, f"postURL/{server_url}$")
+
+        other_url = "http://10.0.1.1:4443"
+        wait_for(hub.set_event_url(other_url))
+        event_url = unquote(requests[-1]["url"])
+        self.assertRegex(event_url, f"postURL/{other_url}$")