Avoid adding switch if not supported

Some weird devices have OnOff clusters
with only partial attributes. Tuya
remotes are one such device.

Author: elupus

tests/data/devices/tz3000-gwkzibhs-ts004f.json

@@ -123,6 +123,18 @@
           "endpoint_attribute": "groups",
           "attributes": []
         },
+        {
+          "cluster_id": "0x0006",
+          "endpoint_attribute": "on_off",
+          "attributes": [
+            {
+              "id": "0x0000",
+              "name": "on_off",
+              "zcl_type": "bool",
+              "unsupported": true
+            }
+          ]
+        },
         {
           "cluster_id": "0x1000",
           "endpoint_attribute": "lightlink",

tests/data/devices/tz3000-kjfzuycl-ts004f.json

@@ -99,6 +99,18 @@
           "endpoint_attribute": "groups",
           "attributes": []
         },
+        {
+          "cluster_id": "0x0006",
+          "endpoint_attribute": "on_off",
+          "attributes": [
+            {
+              "id": "0x0000",
+              "name": "on_off",
+              "zcl_type": "bool",
+              "unsupported": true
+            }
+          ]
+        },
         {
           "cluster_id": "0x1000",
           "endpoint_attribute": "lightlink",

tests/data/devices/tze200-2aaelwxk-ts0225.json

@@ -501,7 +501,7 @@
           "entity_category": null,
           "entity_registry_enabled_default": true,
           "enabled": true,
-          "primary": false,
+          "primary": true,
           "cluster_handlers": [
             {
               "class_name": "OccupancySensingClusterHandler",
@@ -1427,48 +1427,6 @@
       }
     ],
     "switch": [
-      {
-        "info_object": {
-          "fallback_name": null,
-          "unique_id": "ab:cd:ef:12:94:85:f7:5f-1-6",
-          "migrate_unique_ids": [],
-          "platform": "switch",
-          "class_name": "Switch",
-          "translation_key": "switch",
-          "translation_placeholders": null,
-          "device_class": null,
-          "state_class": null,
-          "entity_category": null,
-          "entity_registry_enabled_default": true,
-          "enabled": true,
-          "primary": true,
-          "cluster_handlers": [
-            {
-              "class_name": "OnOffClusterHandler",
-              "generic_id": "cluster_handler_0x0006",
-              "endpoint_id": 1,
-              "cluster": {
-                "id": 6,
-                "name": "On/Off",
-                "type": "server"
-              },
-              "id": "1:0x0006",
-              "unique_id": "ab:cd:ef:12:94:85:f7:5f:1:0x0006",
-              "status": "INITIALIZED",
-              "value_attribute": "on_off"
-            }
-          ],
-          "device_ieee": "ab:cd:ef:12:94:85:f7:5f",
-          "endpoint_id": 1,
-          "available": true,
-          "group_id": null
-        },
-        "state": {
-          "class_name": "Switch",
-          "state": false,
-          "available": true
-        }
-      },
       {
         "info_object": {
           "fallback_name": "LED indicator",

zha/application/platforms/switch.py

@@ -111,6 +111,7 @@ class Switch(PlatformEntity, BaseSwitch):
 
     _attr_translation_key = "switch"
     _attr_primary_weight = 10
+    _attribute_name = OnOff.AttributeDefs.on_off.name
 
     def __init__(
         self,
@@ -135,12 +136,26 @@ def on_add(self) -> None:
             )
         )
 
+    def _is_supported(self) -> bool:
+        if (
+            self._attribute_name
+            in self._on_off_cluster_handler.cluster.unsupported_attributes
+        ):
+            _LOGGER.debug(
+                "%s is not supported - skipping %s entity creation",
+                self._attribute_name,
+                self.__class__.__name__,
+            )
+            return False
+
+        return super()._is_supported()
+
     def handle_cluster_handler_attribute_updated(
         self,
         event: ClusterAttributeUpdatedEvent,  # pylint: disable=unused-argument
     ) -> None:
         """Handle state update from cluster handler."""
-        if event.attribute_name == OnOff.AttributeDefs.on_off.name:
+        if event.attribute_name == self._attribute_name:
             self.maybe_emit_state_changed_event()