Use reference strings in Upb (#41340)

* Update strings.json

* Update config_flow.py

* Update test_config_flow.py

homeassistant/components/upb/config_flow.py

@@ -89,7 +89,7 @@ class ConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
         if user_input is not None:
             try:
                 if self._url_already_configured(_make_url_from_data(user_input)):
-                    return self.async_abort(reason="address_already_configured")
+                    return self.async_abort(reason="already_configured")
                 network_id, info = await _validate_input(user_input)
             except CannotConnect:
                 errors["base"] = "cannot_connect"

homeassistant/components/upb/strings.json

@@ -12,12 +12,12 @@
       }
     },
     "error": {
-      "cannot_connect": "Failed to connect to UPB PIM, please try again.",
+      "cannot_connect": "[%key:common::config_flow::error::cannot_connect%]",
       "invalid_upb_file": "Missing or invalid UPB UPStart export file, check the name and path of the file.",
-      "unknown": "Unexpected error."
+      "unknown": "[%key:common::config_flow::error::unknown%]"
     },
     "abort": {
-      "address_already_configured": "An UPB PIM with this address is already configured."
+      "already_configured": "[%key:common::config_flow::abort::already_configured_device%]"
     }
   }
 }

tests/components/upb/test_config_flow.py

@@ -107,7 +107,7 @@ async def test_form_user_with_already_configured(hass):
     _ = await valid_tcp_flow(hass)
     result2 = await valid_tcp_flow(hass)
     assert result2["type"] == "abort"
-    assert result2["reason"] == "address_already_configured"
+    assert result2["reason"] == "already_configured"
     await hass.async_block_till_done()