Add anna_p1 testcase

Author: bouwew

tests/data/anna/anna_p1.json

@@ -0,0 +1,3 @@
+{
+  "devices": {}
+}

tests/test_anna.py

@@ -535,6 +535,27 @@ async def test_connect_anna_loria_driessens(self):
         await api.close_connection()
         await self.disconnect(server, client)
 
+    @pytest.mark.asyncio
+    async def test_connect_anna_p1(self):
+        """Test an Anna v4 connected to a P1 port."""
+        self.smile_setup = "anna_p1"
+
+        testdata = await self.load_testdata(SMILE_TYPE, self.smile_setup)
+        server, api, client = await self.connect_wrapper()
+        assert api.smile.hostname == "smile000000"
+
+        self.validate_test_basics(
+            _LOGGER,
+            api,
+            smile_version=None,
+        )
+
+        await self.device_test(api, "2025-11-2 00:00:01", testdata)
+        assert self.entity_items == 12
+
+        await api.close_connection()
+        await self.disconnect(server, client)
+
     @pytest.mark.asyncio
     async def test_connect_anna_v4_no_modules(self):
         """Test an Anna v4 with removed Anna and OpenTherm device."""