Raise when zwave_js device automation fails validation

homeassistant/components/zwave_js/device_condition.py

@@ -99,7 +99,16 @@ async def async_validate_condition_config(
 
     # We return early if the config entry for this device is not ready because we can't
     # validate the value without knowing the state of the device
-    if async_is_device_config_entry_not_loaded(hass, config[CONF_DEVICE_ID]):
+    try:
+        device_config_entry_not_loaded = async_is_device_config_entry_not_loaded(
+            hass, config[CONF_DEVICE_ID]
+        )
+    except ValueError as err:
+        raise InvalidDeviceAutomationConfig(
+            f"Device {config[CONF_DEVICE_ID]} not found"
+        ) from err
+
+    if device_config_entry_not_loaded:
         return config
 
     if config[CONF_TYPE] == VALUE_TYPE:

homeassistant/components/zwave_js/device_trigger.py

@@ -217,7 +217,16 @@ async def async_validate_trigger_config(
 
     # We return early if the config entry for this device is not ready because we can't
     # validate the value without knowing the state of the device
-    if async_is_device_config_entry_not_loaded(hass, config[CONF_DEVICE_ID]):
+    try:
+        device_config_entry_not_loaded = async_is_device_config_entry_not_loaded(
+            hass, config[CONF_DEVICE_ID]
+        )
+    except ValueError as err:
+        raise InvalidDeviceAutomationConfig(
+            f"Device {config[CONF_DEVICE_ID]} not found"
+        ) from err
+
+    if device_config_entry_not_loaded:
         return config
 
     trigger_type = config[CONF_TYPE]

homeassistant/components/zwave_js/helpers.py

@@ -298,7 +298,8 @@ def async_is_device_config_entry_not_loaded(
     """Return whether device's config entries are not loaded."""
     dev_reg = dr.async_get(hass)
     device = dev_reg.async_get(device_id)
-    assert device
+    if device is None:
+        raise ValueError(f"Device {device_id} not found")
     return any(
         (entry := hass.config_entries.async_get_entry(entry_id))
         and entry.state != ConfigEntryState.LOADED

tests/components/zwave_js/test_device_condition.py

@@ -596,6 +596,23 @@ async def test_failure_scenarios(hass, client, hank_binary_switch, integration):
         == INVALID_CONFIG
     )
 
+    # Test invalid device ID fails validation
+    with pytest.raises(InvalidDeviceAutomationConfig):
+        await device_condition.async_validate_condition_config(
+            hass,
+            {
+                "condition": "device",
+                "domain": DOMAIN,
+                "type": "value",
+                "device_id": "invalid_device_id",
+                "command_class": CommandClass.DOOR_LOCK.value,
+                "property": 9999,
+                "property_key": 9999,
+                "endpoint": 9999,
+                "value": 9999,
+            },
+        )
+
 
 async def test_get_value_from_config_failure(
     hass, client, hank_binary_switch, integration

tests/components/zwave_js/test_device_trigger.py

@@ -1370,3 +1370,19 @@ async def test_failure_scenarios(hass, client, hank_binary_switch, integration):
         await device_trigger.async_validate_trigger_config(hass, INVALID_CONFIG)
         == INVALID_CONFIG
     )
+
+    # Test invalid device ID fails validation
+    with pytest.raises(InvalidDeviceAutomationConfig):
+        await device_trigger.async_validate_trigger_config(
+            hass,
+            {
+                "platform": "device",
+                "domain": DOMAIN,
+                "device_id": "invalid_device_id",
+                "type": "zwave_js.value_updated.value",
+                "command_class": CommandClass.DOOR_LOCK.value,
+                "property": 9999,
+                "property_key": 9999,
+                "endpoint": 9999,
+            },
+        )