Use references in airvisual strings.json (#41005)

homeassistant/components/airvisual/config_flow.py

@@ -166,7 +166,7 @@ class AirVisualFlowHandler(config_entries.ConfigFlow, domain=DOMAIN):
             return self.async_show_form(
                 step_id="node_pro",
                 data_schema=self.node_pro_schema,
-                errors={CONF_IP_ADDRESS: "unable_to_connect"},
+                errors={CONF_IP_ADDRESS: "cannot_connect"},
             )
 
         await node.async_disconnect()

homeassistant/components/airvisual/strings.json

@@ -29,9 +29,9 @@
       }
     },
     "error": {
-      "general_error": "There was an unknown error.",
-      "invalid_api_key": "Invalid API key provided.",
-      "unable_to_connect": "Unable to connect to Node/Pro unit."
+      "general_error": "[%key:common::config_flow::error::unknown%]",
+      "invalid_api_key": "[%key:common::config_flow::error::invalid_api_key%]",
+      "cannot_connect": "[%key:common::config_flow::error::cannot_connect%]"
     },
     "abort": {
       "already_configured": "These coordinates or Node/Pro ID are already registered."

tests/components/airvisual/test_config_flow.py

@@ -140,7 +140,7 @@ async def test_node_pro_error(hass):
             result["flow_id"], user_input=node_pro_conf
         )
         assert result["type"] == data_entry_flow.RESULT_TYPE_FORM
-        assert result["errors"] == {CONF_IP_ADDRESS: "unable_to_connect"}
+        assert result["errors"] == {CONF_IP_ADDRESS: "cannot_connect"}
 
 
 async def test_options_flow(hass):