Fix homewizard diagnostics and add tests (#72611)

tests/components/homewizard/test_diagnostics.py

@@ -0,0 +1,47 @@
+"""Tests for diagnostics data."""
+from aiohttp import ClientSession
+
+from homeassistant.components.diagnostics import REDACTED
+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
+    ) == {
+        "entry": {"ip_address": REDACTED},
+        "data": {
+            "device": {
+                "product_name": "P1 Meter",
+                "product_type": "HWE-P1",
+                "serial": REDACTED,
+                "api_version": "v1",
+                "firmware_version": "2.11",
+            },
+            "data": {
+                "smr_version": 50,
+                "meter_model": "ISKRA  2M550T-101",
+                "wifi_ssid": REDACTED,
+                "wifi_strength": 100,
+                "total_power_import_t1_kwh": 1234.111,
+                "total_power_import_t2_kwh": 5678.222,
+                "total_power_export_t1_kwh": 4321.333,
+                "total_power_export_t2_kwh": 8765.444,
+                "active_power_w": -123,
+                "active_power_l1_w": -123,
+                "active_power_l2_w": 456,
+                "active_power_l3_w": 123.456,
+                "total_gas_m3": 1122.333,
+                "gas_timestamp": "2021-03-14T11:22:33",
+            },
+            "state": {"power_on": True, "switch_lock": False, "brightness": 255},
+        },
+    }