Add diagnostics support to Elgato (#64652)

homeassistant/components/elgato/diagnostics.py

@@ -0,0 +1,21 @@
+"""Diagnostics support for Elgato."""
+from __future__ import annotations
+
+from typing import Any
+
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.core import HomeAssistant
+
+from . import HomeAssistantElgatoData
+from .const import DOMAIN
+
+
+async def async_get_config_entry_diagnostics(
+    hass: HomeAssistant, entry: ConfigEntry
+) -> dict[str, Any]:
+    """Return diagnostics for a config entry."""
+    data: HomeAssistantElgatoData = hass.data[DOMAIN][entry.entry_id]
+    return {
+        "info": data.info.dict(),
+        "state": data.coordinator.data.dict(),
+    }

tests/components/elgato/test_diagnostics.py

@@ -0,0 +1,35 @@
+"""Tests for the diagnostics data provided by the Elgato integration."""
+from aiohttp import ClientSession
+
+from homeassistant.core import HomeAssistant
+
+from tests.common import MockConfigEntry
+from tests.components.diagnostics import get_diagnostics_for_config_entry
+
+
+async def test_diagnostics(
+    hass: HomeAssistant,
+    hass_client: ClientSession,
+    init_integration: MockConfigEntry,
+):
+    """Test diagnostics."""
+    assert await get_diagnostics_for_config_entry(
+        hass, hass_client, init_integration
+    ) == {
+        "info": {
+            "display_name": "Frenck",
+            "firmware_build_number": 192,
+            "firmware_version": "1.0.3",
+            "hardware_board_type": 53,
+            "product_name": "Elgato Key Light",
+            "serial_number": "CN11A1A00001",
+            "features": ["lights"],
+        },
+        "state": {
+            "on": True,
+            "brightness": 21,
+            "hue": None,
+            "saturation": None,
+            "temperature": 297,
+        },
+    }