Use reference strings in Totalconnect (#41047)

* Update strings.json

* Update config_flow.py

* Update test_config_flow.py

homeassistant/components/totalconnect/config_flow.py

@@ -38,7 +38,7 @@ class TotalConnectConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
                     data={CONF_USERNAME: username, CONF_PASSWORD: password},
                 )
             # authentication failed / invalid
-            errors["base"] = "login"
+            errors["base"] = "invalid_auth"
 
         data_schema = vol.Schema(
             {vol.Required(CONF_USERNAME): str, vol.Required(CONF_PASSWORD): str}

homeassistant/components/totalconnect/strings.json

@@ -10,10 +10,10 @@
       }
     },
     "error": {
-      "login": "Login error: please check your username & password"
+      "invalid_auth": "[%key:common::config_flow::error::invalid_auth%]"
     },
     "abort": {
-      "already_configured": "Account already configured"
+      "already_configured": "[%key:common::config_flow::abort::already_configured_account%]"
     }
   }
-}
+}

tests/components/totalconnect/test_config_flow.py

@@ -100,4 +100,4 @@ async def test_login_failed(hass):
         )
 
     assert result["type"] == data_entry_flow.RESULT_TYPE_FORM
-    assert result["errors"] == {"base": "login"}
+    assert result["errors"] == {"base": "invalid_auth"}