Add HDFury diagnostics (#160641)

tests/components/hdfury/snapshots/test_diagnostics.ambr

@@ -0,0 +1,30 @@
+# serializer version: 1
+# name: test_diagnostics
+  dict({
+    'board': dict({
+      'hostname': 'VRROOM-02',
+      'ipaddress': '192.168.1.123',
+      'pcbv': '3',
+      'serial': '000123456789',
+      'version': 'FW: 0.61',
+    }),
+    'config': dict({
+      'autosw': '1',
+      'htpcmode0': '0',
+      'htpcmode1': '0',
+      'htpcmode2': '0',
+      'htpcmode3': '0',
+      'iractive': '1',
+      'macaddr': 'c7:1c:df:9d:f6:40',
+      'mutetx0': '1',
+      'mutetx1': '1',
+      'oled': '1',
+      'relay': '0',
+    }),
+    'info': dict({
+      'opmode': '0',
+      'portseltx0': '0',
+      'portseltx1': '4',
+    }),
+  })
+# ---

tests/components/hdfury/test_diagnostics.py

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+"""Tests for the HDFury diagnostics."""
+
+from syrupy.assertion import SnapshotAssertion
+
+from homeassistant.components.hdfury import PLATFORMS
+from homeassistant.core import HomeAssistant
+import homeassistant.helpers.entity_registry as er
+
+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_diagnostics(
+    hass: HomeAssistant,
+    hass_client: ClientSessionGenerator,
+    snapshot: SnapshotAssertion,
+    entity_registry: er.EntityRegistry,
+    mock_config_entry: MockConfigEntry,
+) -> None:
+    """Test HDFury diagnostics."""
+
+    await setup_integration(hass, mock_config_entry, PLATFORMS)
+
+    diagnostics = await get_diagnostics_for_config_entry(
+        hass, hass_client, mock_config_entry
+    )
+
+    assert diagnostics == snapshot