Add (basic) diagnostics support for Hue integration (#67074)

Co-authored-by: Paulus Schoutsen <balloob@gmail.com>

homeassistant/components/hue/diagnostics.py

@@ -0,0 +1,22 @@
+"""Diagnostics support for Hue."""
+from __future__ import annotations
+
+from typing import Any
+
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.core import HomeAssistant
+
+from .bridge import HueBridge
+from .const import DOMAIN
+
+
+async def async_get_config_entry_diagnostics(
+    hass: HomeAssistant, entry: ConfigEntry
+) -> dict[str, Any]:
+    """Return diagnostics for a config entry."""
+    bridge: HueBridge = hass.data[DOMAIN][entry.entry_id]
+    if bridge.api_version == 1:
+        # diagnostics is only implemented for V2 bridges.
+        return {}
+    # Hue diagnostics are already redacted
+    return await bridge.api.get_diagnostics()

tests/components/hue/test_diagnostics.py

@@ -0,0 +1,22 @@
+"""Test Hue diagnostics."""
+
+from .conftest import setup_platform
+
+from tests.components.diagnostics import get_diagnostics_for_config_entry
+
+
+async def test_diagnostics_v1(hass, hass_client, mock_bridge_v1):
+    """Test diagnostics v1."""
+    await setup_platform(hass, mock_bridge_v1, [])
+    config_entry = hass.config_entries.async_entries("hue")[0]
+    result = await get_diagnostics_for_config_entry(hass, hass_client, config_entry)
+    assert result == {}
+
+
+async def test_diagnostics_v2(hass, hass_client, mock_bridge_v2):
+    """Test diagnostics v2."""
+    mock_bridge_v2.api.get_diagnostics.return_value = {"hello": "world"}
+    await setup_platform(hass, mock_bridge_v2, [])
+    config_entry = hass.config_entries.async_entries("hue")[0]
+    result = await get_diagnostics_for_config_entry(hass, hass_client, config_entry)
+    assert result == {"hello": "world"}