Bugfix and add test coverage for zwave_js.light (#93257)

Add test coverage for zwave_js.light

homeassistant/components/zwave_js/light.py

@@ -444,8 +444,8 @@ def _calculate_color_values(self) -> None:
 class ZwaveBlackIsOffLight(ZwaveLight):
     """Representation of a Z-Wave light where setting the color to black turns it off.
 
-    Currently only supports lights with RGB, no color temperature,
-    and no white channels.
+    Currently only supports lights with RGB, no color temperature, and no white
+    channels.
     """
 
     def __init__(
@@ -471,13 +471,12 @@ def is_on(self) -> bool | None:
 
     async def async_turn_on(self, **kwargs: Any) -> None:
         """Turn the device on."""
-        await super().async_turn_on(**kwargs)
-
         if (
             kwargs.get(ATTR_RGBW_COLOR) is not None
             or kwargs.get(ATTR_COLOR_TEMP) is not None
             or kwargs.get(ATTR_HS_COLOR) is not None
         ):
+            await super().async_turn_on(**kwargs)
             return
 
         transition = kwargs.get(ATTR_TRANSITION)

tests/components/zwave_js/test_light.py

@@ -23,6 +23,7 @@
     SERVICE_TURN_ON,
     STATE_OFF,
     STATE_ON,
+    STATE_UNKNOWN,
 )
 from homeassistant.core import HomeAssistant
 
@@ -397,6 +398,33 @@ async def test_light(
     }
     assert args["value"] == 0
 
+    client.async_send_command.reset_mock()
+
+    # Test brightness update to None from value updated event
+    event = Event(
+        type="value updated",
+        data={
+            "source": "node",
+            "event": "value updated",
+            "nodeId": 39,
+            "args": {
+                "commandClassName": "Multilevel Switch",
+                "commandClass": 38,
+                "endpoint": 0,
+                "property": "currentValue",
+                "newValue": None,
+                "prevValue": 99,
+                "propertyName": "currentValue",
+            },
+        },
+    )
+    node.receive_event(event)
+
+    state = hass.states.get(BULB_6_MULTI_COLOR_LIGHT_ENTITY)
+    assert state.state == STATE_UNKNOWN
+    assert ATTR_COLOR_MODE not in state.attributes
+    assert ATTR_BRIGHTNESS not in state.attributes
+
 
 async def test_v4_dimmer_light(
     hass: HomeAssistant, client, eaton_rf9640_dimmer, integration
@@ -599,3 +627,50 @@ async def test_black_is_off(
     assert args["value"] == {"red": 0, "green": 255, "blue": 0}
 
     client.async_send_command.reset_mock()
+
+    # Force the light to turn on
+    event = Event(
+        type="value updated",
+        data={
+            "source": "node",
+            "event": "value updated",
+            "nodeId": node.node_id,
+            "args": {
+                "commandClassName": "Color Switch",
+                "commandClass": 51,
+                "endpoint": 0,
+                "property": "currentColor",
+                "newValue": None,
+                "prevValue": {
+                    "red": 0,
+                    "green": 255,
+                    "blue": 0,
+                },
+                "propertyName": "currentColor",
+            },
+        },
+    )
+    node.receive_event(event)
+    await hass.async_block_till_done()
+    state = hass.states.get(HSM200_V1_ENTITY)
+    assert state.state == STATE_UNKNOWN
+
+    client.async_send_command.reset_mock()
+
+    # Assert that call fails if attribute is added to service call
+    await hass.services.async_call(
+        LIGHT_DOMAIN,
+        SERVICE_TURN_ON,
+        {ATTR_ENTITY_ID: HSM200_V1_ENTITY, ATTR_RGBW_COLOR: (255, 76, 255, 0)},
+        blocking=True,
+    )
+    assert len(client.async_send_command.call_args_list) == 1
+    args = client.async_send_command.call_args_list[0][0][0]
+    assert args["command"] == "node.set_value"
+    assert args["nodeId"] == node.node_id
+    assert args["valueId"] == {
+        "commandClass": 51,
+        "endpoint": 0,
+        "property": "targetColor",
+    }
+    assert args["value"] == {"red": 255, "green": 76, "blue": 255}