From 8e0addd216c8691af3e57ff2ec340a5fdc965ca8 Mon Sep 17 00:00:00 2001
From: Robert Svensson <Kane610@users.noreply.github.com>
Date: Mon, 18 Jan 2021 15:00:27 +0100
Subject: [PATCH] Fix error with Axis light events without representation in
 light control (#45277)

---
 homeassistant/components/axis/light.py |  5 ++++-
 tests/components/axis/test_light.py    | 27 +++++++++++++++++++++++++-
 2 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/homeassistant/components/axis/light.py b/homeassistant/components/axis/light.py
index df4c00415ff..75a42b13cbf 100644
--- a/homeassistant/components/axis/light.py
+++ b/homeassistant/components/axis/light.py
@@ -18,7 +18,10 @@ async def async_setup_entry(hass, config_entry, async_add_entities):
     """Set up a Axis light."""
     device = hass.data[AXIS_DOMAIN][config_entry.unique_id]
 
-    if not device.api.vapix.light_control:
+    if (
+        device.api.vapix.light_control is None
+        or len(device.api.vapix.light_control) == 0
+    ):
         return
 
     @callback
diff --git a/tests/components/axis/test_light.py b/tests/components/axis/test_light.py
index 37b251d8ede..db4ba86ceae 100644
--- a/tests/components/axis/test_light.py
+++ b/tests/components/axis/test_light.py
@@ -14,7 +14,12 @@ from homeassistant.const import (
 )
 from homeassistant.setup import async_setup_component
 
-from .test_device import API_DISCOVERY_RESPONSE, NAME, setup_axis_integration
+from .test_device import (
+    API_DISCOVERY_RESPONSE,
+    LIGHT_CONTROL_RESPONSE,
+    NAME,
+    setup_axis_integration,
+)
 
 API_DISCOVERY_LIGHT_CONTROL = {
     "id": "light-control",
@@ -57,6 +62,26 @@ async def test_no_lights(hass):
     assert not hass.states.async_entity_ids(LIGHT_DOMAIN)
 
 
+async def test_no_light_entity_without_light_control_representation(hass):
+    """Verify no lights entities get created without light control representation."""
+    api_discovery = deepcopy(API_DISCOVERY_RESPONSE)
+    api_discovery["data"]["apiList"].append(API_DISCOVERY_LIGHT_CONTROL)
+
+    light_control = deepcopy(LIGHT_CONTROL_RESPONSE)
+    light_control["data"]["items"] = []
+
+    with patch.dict(API_DISCOVERY_RESPONSE, api_discovery), patch.dict(
+        LIGHT_CONTROL_RESPONSE, light_control
+    ):
+        config_entry = await setup_axis_integration(hass)
+        device = hass.data[AXIS_DOMAIN][config_entry.unique_id]
+
+    device.api.event.update([EVENT_ON])
+    await hass.async_block_till_done()
+
+    assert not hass.states.async_entity_ids(LIGHT_DOMAIN)
+
+
 async def test_lights(hass):
     """Test that lights are loaded properly."""
     api_discovery = deepcopy(API_DISCOVERY_RESPONSE)