Add diagnostics platform to AVM Fritz!Smarthome (#64657)

Co-authored-by: Paulus Schoutsen <paulus@home-assistant.io>

homeassistant/components/fritzbox/diagnostics.py

@@ -0,0 +1,33 @@
+"""Diagnostics support for AVM Fritz!Smarthome."""
+from __future__ import annotations
+
+from homeassistant.components.diagnostics import async_redact_data
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.const import CONF_PASSWORD, CONF_USERNAME
+from homeassistant.core import HomeAssistant
+
+from .const import CONF_COORDINATOR, DOMAIN
+from .coordinator import FritzboxDataUpdateCoordinator
+
+TO_REDACT = {CONF_USERNAME, CONF_PASSWORD}
+
+
+async def async_get_config_entry_diagnostics(
+    hass: HomeAssistant, entry: ConfigEntry
+) -> dict:
+    """Return diagnostics for a config entry."""
+    data: dict = hass.data[DOMAIN][entry.entry_id]
+    coordinator: FritzboxDataUpdateCoordinator = data[CONF_COORDINATOR]
+
+    diag_data = {
+        "entry": async_redact_data(entry.as_dict(), TO_REDACT),
+        "data": {},
+    }
+    if not isinstance(coordinator.data, dict):
+        return diag_data
+
+    diag_data["data"] = {
+        ain: {k: v for k, v in vars(dev).items() if not k.startswith("_")}
+        for ain, dev in coordinator.data.items()
+    }
+    return diag_data

tests/components/fritzbox/test_diagnostics.py

@@ -0,0 +1,33 @@
+"""Tests for the AVM Fritz!Box integration."""
+from __future__ import annotations
+
+from unittest.mock import Mock
+
+from aiohttp import ClientSession
+
+from homeassistant.components.diagnostics import REDACTED
+from homeassistant.components.fritzbox.const import DOMAIN as FB_DOMAIN
+from homeassistant.components.fritzbox.diagnostics import TO_REDACT
+from homeassistant.const import CONF_DEVICES
+from homeassistant.core import HomeAssistant
+
+from . import setup_config_entry
+from .const import MOCK_CONFIG
+
+from tests.components.diagnostics import get_diagnostics_for_config_entry
+
+
+async def test_entry_diagnostics(
+    hass: HomeAssistant, hass_client: ClientSession, fritz: Mock
+):
+    """Test config entry diagnostics."""
+    assert await setup_config_entry(hass, MOCK_CONFIG[FB_DOMAIN][CONF_DEVICES][0])
+
+    entries = hass.config_entries.async_entries(FB_DOMAIN)
+    entry_dict = entries[0].as_dict()
+    for key in TO_REDACT:
+        entry_dict["data"][key] = REDACTED
+
+    result = await get_diagnostics_for_config_entry(hass, hass_client, entries[0])
+
+    assert result == {"entry": entry_dict, "data": {}}