From 9b810c64d98db452dd0ed3aaba70873fa050dcc2 Mon Sep 17 00:00:00 2001
From: Klaas Schoute <klaas_schoute@hotmail.com>
Date: Wed, 25 Feb 2026 00:24:33 +0100
Subject: [PATCH] Add diagnostics support for Powerfox Local integration
 (#163985)

---
 .../components/powerfox_local/diagnostics.py  | 24 +++++++++++++++
 .../powerfox_local/quality_scale.yaml         |  2 +-
 .../snapshots/test_diagnostics.ambr           | 10 +++++++
 .../powerfox_local/test_diagnostics.py        | 30 +++++++++++++++++++
 4 files changed, 65 insertions(+), 1 deletion(-)
 create mode 100644 homeassistant/components/powerfox_local/diagnostics.py
 create mode 100644 tests/components/powerfox_local/snapshots/test_diagnostics.ambr
 create mode 100644 tests/components/powerfox_local/test_diagnostics.py

diff --git a/homeassistant/components/powerfox_local/diagnostics.py b/homeassistant/components/powerfox_local/diagnostics.py
new file mode 100644
index 00000000000..7cfd196cf5a
--- /dev/null
+++ b/homeassistant/components/powerfox_local/diagnostics.py
@@ -0,0 +1,24 @@
+"""Support for Powerfox Local diagnostics."""
+
+from __future__ import annotations
+
+from typing import Any
+
+from homeassistant.core import HomeAssistant
+
+from .coordinator import PowerfoxLocalConfigEntry
+
+
+async def async_get_config_entry_diagnostics(
+    hass: HomeAssistant, entry: PowerfoxLocalConfigEntry
+) -> dict[str, Any]:
+    """Return diagnostics for Powerfox Local config entry."""
+    coordinator = entry.runtime_data
+
+    return {
+        "power": coordinator.data.power,
+        "energy_usage": coordinator.data.energy_usage,
+        "energy_usage_high_tariff": coordinator.data.energy_usage_high_tariff,
+        "energy_usage_low_tariff": coordinator.data.energy_usage_low_tariff,
+        "energy_return": coordinator.data.energy_return,
+    }
diff --git a/homeassistant/components/powerfox_local/quality_scale.yaml b/homeassistant/components/powerfox_local/quality_scale.yaml
index ce0faf0e787..df71b45d6c7 100644
--- a/homeassistant/components/powerfox_local/quality_scale.yaml
+++ b/homeassistant/components/powerfox_local/quality_scale.yaml
@@ -48,7 +48,7 @@ rules:
 
   # Gold
   devices: done
-  diagnostics: todo
+  diagnostics: done
   discovery-update-info: done
   discovery: done
   docs-data-update: done
diff --git a/tests/components/powerfox_local/snapshots/test_diagnostics.ambr b/tests/components/powerfox_local/snapshots/test_diagnostics.ambr
new file mode 100644
index 00000000000..6ee874eaaba
--- /dev/null
+++ b/tests/components/powerfox_local/snapshots/test_diagnostics.ambr
@@ -0,0 +1,10 @@
+# serializer version: 1
+# name: test_entry_diagnostics
+  dict({
+    'energy_return': 111111,
+    'energy_usage': 1111111,
+    'energy_usage_high_tariff': 111111,
+    'energy_usage_low_tariff': 111111,
+    'power': 111,
+  })
+# ---
diff --git a/tests/components/powerfox_local/test_diagnostics.py b/tests/components/powerfox_local/test_diagnostics.py
new file mode 100644
index 00000000000..c20fe00723c
--- /dev/null
+++ b/tests/components/powerfox_local/test_diagnostics.py
@@ -0,0 +1,30 @@
+"""Test for Powerfox Local diagnostics."""
+
+from unittest.mock import AsyncMock
+
+from syrupy.assertion import SnapshotAssertion
+
+from homeassistant.core import HomeAssistant
+
+from . import setup_integration
+
+from tests.common import MockConfigEntry
+from tests.components.diagnostics import get_diagnostics_for_config_entry
+from tests.typing import ClientSessionGenerator
+
+
+async def test_entry_diagnostics(
+    hass: HomeAssistant,
+    hass_client: ClientSessionGenerator,
+    mock_powerfox_local_client: AsyncMock,
+    mock_config_entry: MockConfigEntry,
+    snapshot: SnapshotAssertion,
+) -> None:
+    """Test the Powerfox Local entry diagnostics."""
+    await setup_integration(hass, mock_config_entry)
+
+    result = await get_diagnostics_for_config_entry(
+        hass, hass_client, mock_config_entry
+    )
+
+    assert result == snapshot