Add diagnostics to NAM (#64743)

* Add diagnostics

* Fix tests

homeassistant/components/nam/diagnostics.py

@@ -0,0 +1,28 @@
+"""Diagnostics support for NAM."""
+from __future__ import annotations
+
+from dataclasses import asdict
+
+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 . import NAMDataUpdateCoordinator
+from .const import DOMAIN
+
+TO_REDACT = {CONF_PASSWORD, CONF_USERNAME}
+
+
+async def async_get_config_entry_diagnostics(
+    hass: HomeAssistant, config_entry: ConfigEntry
+) -> dict:
+    """Return diagnostics for a config entry."""
+    coordinator: NAMDataUpdateCoordinator = hass.data[DOMAIN][config_entry.entry_id]
+
+    diagnostics_data = {
+        "info": async_redact_data(config_entry.data, TO_REDACT),
+        "data": asdict(coordinator.data),
+    }
+
+    return diagnostics_data

tests/components/nam/fixtures/diagnostics_data.json

@@ -0,0 +1,24 @@
+{
+    "bme280_humidity": 45.7,
+    "bme280_pressure": 1011,
+    "bme280_temperature": 7.6,
+    "bmp180_pressure": 1032,
+    "bmp180_temperature": 7.6,
+    "bmp280_pressure": 1022,
+    "bmp280_temperature": 5.6,
+    "dht22_humidity": 46.2,
+    "dht22_temperature": 6.3,
+    "heca_humidity": 50.0,
+    "heca_temperature": 8.0,
+    "mhz14a_carbon_dioxide": 865,
+    "sds011_p1": 19,
+    "sds011_p2": 11,
+    "sht3x_humidity": 34.7,
+    "sht3x_temperature": 6.3,
+    "signal": -72,
+    "sps30_p0": 31,
+    "sps30_p1": 21,
+    "sps30_p2": 34,
+    "sps30_p4": 25,
+    "uptime": 456987
+}

tests/components/nam/test_diagnostics.py

@@ -0,0 +1,18 @@
+"""Test NAM diagnostics."""
+import json
+
+from tests.common import load_fixture
+from tests.components.diagnostics import get_diagnostics_for_config_entry
+from tests.components.nam import init_integration
+
+
+async def test_entry_diagnostics(hass, hass_client):
+    """Test config entry diagnostics."""
+    entry = await init_integration(hass)
+
+    diagnostics_data = json.loads(load_fixture("diagnostics_data.json", "nam"))
+
+    result = await get_diagnostics_for_config_entry(hass, hass_client, entry)
+
+    assert result["info"] == {"host": "10.10.2.3"}
+    assert result["data"] == diagnostics_data