Fix unit parsing in Tuya climate entities

homeassistant/components/tuya/climate.py

@@ -208,6 +208,18 @@ def _get_temperature_wrappers(
         device, DPCode.TEMP_SET_F, prefer_function=True
     )
 
+    # If there is a temp unit convert dpcode, override empty units
+    if (
+        temp_unit_convert := DPCodeEnumWrapper.find_dpcode(
+            device, DPCode.TEMP_UNIT_CONVERT
+        )
+    ) is not None:
+        for wrapper in (temp_current, temp_current_f, temp_set, temp_set_f):
+            if wrapper is not None and not wrapper.type_information.unit:
+                wrapper.type_information.unit = temp_unit_convert.read_device_status(
+                    device
+                )
+
     # Get wrappers for celsius and fahrenheit
     # We need to check the unit of measurement
     current_celsius = _get_temperature_wrapper(

tests/components/tuya/conftest.py

@@ -182,15 +182,23 @@ async def _create_device(hass: HomeAssistant, mock_device_code: str) -> Customer
         key: DeviceFunction(
             code=key,
             type=value["type"],
-            values=json_dumps(value["value"]),
+            values=(
+                values
+                if isinstance(values := value["value"], str)
+                else json_dumps(values)
+            ),
         )
         for key, value in details["function"].items()
     }
     device.status_range = {
         key: DeviceStatusRange(
             code=key,
             type=value["type"],
-            values=json_dumps(value["value"]),
+            values=(
+                values
+                if isinstance(values := value["value"], str)
+                else json_dumps(values)
+            ),
         )
         for key, value in details["status_range"].items()
     }

tests/components/tuya/fixtures/wk_B0eP8qYAdpUo4yR9.json

@@ -0,0 +1,53 @@
+{
+  "endpoint": "https://apigw.tuyaeu.com",
+  "mqtt_connected": true,
+  "disabled_by": null,
+  "disabled_polling": false,
+  "name": "ITC-308-WIFI Thermostat",
+  "category": "wk",
+  "product_id": "B0eP8qYAdpUo4yR9",
+  "product_name": "ITC-308-WIFI Thermostat",
+  "online": true,
+  "sub": false,
+  "time_zone": "+01:00",
+  "active_time": "2022-02-08T10:49:39+00:00",
+  "create_time": "2022-02-08T10:49:39+00:00",
+  "update_time": "2022-02-08T10:49:39+00:00",
+  "function": {
+    "temp_unit_convert": {
+      "type": "Enum",
+      "value": "{\"range\":[\"c\",\"f\"]}"
+    },
+    "temp_set": {
+      "type": "Integer",
+      "value": "{\"unit\":\"\",\"min\":-400,\"max\":2120,\"scale\":1,\"step\":5}"
+    }
+  },
+  "status_range": {
+    "temp_unit_convert": {
+      "type": "Enum",
+      "value": "{\"range\":[\"c\",\"f\"]}"
+    },
+    "temp_current": {
+      "type": "Integer",
+      "value": "{\"unit\":\"\u2103\",\"min\":-500,\"max\":1200,\"scale\":1,\"step\":10}"
+    },
+    "temp_set": {
+      "type": "Integer",
+      "value": "{\"unit\":\"\",\"min\":-400,\"max\":2120,\"scale\":1,\"step\":5}"
+    },
+    "temp_current_f": {
+      "type": "Integer",
+      "value": "{\"unit\":\"\u2109\",\"min\":-500,\"max\":2480,\"scale\":1,\"step\":10}"
+    }
+  },
+  "status": {
+    "temp_unit_convert": "c",
+    "temp_current": 340,
+    "temp_set": 350,
+    "temp_current_f": 932
+  },
+  "set_up": true,
+  "support_local": true,
+  "warnings": null
+}

tests/components/tuya/snapshots/test_climate.ambr

@@ -654,6 +654,68 @@
     'state': 'off',
   })
 # ---
+# name: test_platform_setup_and_discovery[climate.itc_308_wifi_thermostat-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': set({
+    }),
+    'area_id': None,
+    'capabilities': dict({
+      'hvac_modes': list([
+      ]),
+      'max_temp': 212.0,
+      'min_temp': -40.0,
+      'target_temp_step': 0.5,
+    }),
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'climate',
+    'entity_category': None,
+    'entity_id': 'climate.itc_308_wifi_thermostat',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'options': dict({
+    }),
+    'original_device_class': None,
+    'original_icon': None,
+    'original_name': None,
+    'platform': 'tuya',
+    'previous_unique_id': None,
+    'suggested_object_id': None,
+    'supported_features': <ClimateEntityFeature: 1>,
+    'translation_key': None,
+    'unique_id': 'tuya.9Ry4oUpdAYq8Pe0Bkw',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_platform_setup_and_discovery[climate.itc_308_wifi_thermostat-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      'current_temperature': 34.0,
+      'friendly_name': 'ITC-308-WIFI Thermostat',
+      'hvac_modes': list([
+      ]),
+      'max_temp': 212.0,
+      'min_temp': -40.0,
+      'supported_features': <ClimateEntityFeature: 1>,
+      'target_temp_step': 0.5,
+      'temperature': 35.0,
+    }),
+    'context': <ANY>,
+    'entity_id': 'climate.itc_308_wifi_thermostat',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': 'off',
+  })
+# ---
 # name: test_platform_setup_and_discovery[climate.kabinet-entry]
   EntityRegistryEntrySnapshot({
     'aliases': set({
@@ -1450,6 +1512,15 @@
     'target_temp_step': 1.0,
   })
 # ---
+# name: test_us_customary_system[climate.itc_308_wifi_thermostat]
+  ReadOnlyDict({
+    'current_temperature': 93,
+    'max_temp': 414,
+    'min_temp': -40,
+    'target_temp_step': 0.5,
+    'temperature': 95,
+  })
+# ---
 # name: test_us_customary_system[climate.kabinet]
   ReadOnlyDict({
     'current_temperature': 67,