diff --git a/homeassistant/components/myuplink/diagnostics.py b/homeassistant/components/myuplink/diagnostics.py
new file mode 100644
index 00000000000..55cbb07c0d0
--- /dev/null
+++ b/homeassistant/components/myuplink/diagnostics.py
@@ -0,0 +1,46 @@
+"""Diagnostics support for myUplink."""
+from __future__ import annotations
+
+from typing import Any
+
+from myuplink import MyUplinkAPI
+
+from homeassistant.components.diagnostics import async_redact_data
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.core import HomeAssistant
+
+from .const import DOMAIN
+
+TO_REDACT = {"access_token", "refresh_token", "serialNumber"}
+
+
+async def async_get_config_entry_diagnostics(
+    hass: HomeAssistant, config_entry: ConfigEntry
+) -> dict[str, Any]:
+    """Return diagnostics for a config entry.
+
+    Pick up fresh data from API and dump it.
+    """
+    api: MyUplinkAPI = hass.data[DOMAIN][config_entry.entry_id].api
+    myuplink_data = {}
+    myuplink_data["my_systems"] = await api.async_get_systems_json()
+    myuplink_data["my_systems"]["devices"] = []
+    for system in myuplink_data["my_systems"]["systems"]:
+        for device in system["devices"]:
+            device_data = await api.async_get_device_json(device["id"])
+            device_points = await api.async_get_device_points_json(device["id"])
+            myuplink_data["my_systems"]["devices"].append(
+                {
+                    system["systemId"]: {
+                        "device_data": device_data,
+                        "points": device_points,
+                    }
+                }
+            )
+
+    diagnostics_data = {
+        "config_entry_data": async_redact_data(dict(config_entry.data), TO_REDACT),
+        "myuplink_data": async_redact_data(myuplink_data, TO_REDACT),
+    }
+
+    return diagnostics_data
diff --git a/tests/components/myuplink/__init__.py b/tests/components/myuplink/__init__.py
index d5ca745ced0..ffce8144290 100644
--- a/tests/components/myuplink/__init__.py
+++ b/tests/components/myuplink/__init__.py
@@ -1 +1,11 @@
-"""Tests for the myUplink integration."""
+"""Tests for the myuplink integration."""
+from homeassistant.core import HomeAssistant
+
+from tests.common import MockConfigEntry
+
+
+async def setup_integration(hass: HomeAssistant, config_entry: MockConfigEntry) -> None:
+    """Fixture for setting up the component."""
+    config_entry.add_to_hass(hass)
+
+    await hass.config_entries.async_setup(config_entry.entry_id)
diff --git a/tests/components/myuplink/conftest.py b/tests/components/myuplink/conftest.py
new file mode 100644
index 00000000000..f7d3e0d8c9a
--- /dev/null
+++ b/tests/components/myuplink/conftest.py
@@ -0,0 +1,110 @@
+"""Test helpers for myuplink."""
+from collections.abc import Generator
+import json
+import time
+from typing import Any
+from unittest.mock import MagicMock, patch
+
+from myuplink import Device, System
+import pytest
+
+from homeassistant.components.application_credentials import (
+    ClientCredential,
+    async_import_client_credential,
+)
+from homeassistant.components.myuplink.const import DOMAIN
+from homeassistant.core import HomeAssistant
+from homeassistant.setup import async_setup_component
+
+from .const import CLIENT_ID, CLIENT_SECRET
+
+from tests.common import MockConfigEntry, load_fixture, load_json_value_fixture
+
+
+@pytest.fixture(name="expires_at")
+def mock_expires_at() -> float:
+    """Fixture to set the oauth token expiration time."""
+    return time.time() + 3600
+
+
+@pytest.fixture
+def mock_config_entry(expires_at: int) -> MockConfigEntry:
+    """Return the default mocked config entry."""
+    return MockConfigEntry(
+        version=1,
+        domain=DOMAIN,
+        title="myUplink test",
+        data={
+            "auth_implementation": DOMAIN,
+            "token": {
+                "access_token": "Fake_token",
+                "scope": "READSYSTEM offline",
+                "expires_in": 86399,
+                "refresh_token": "3012bc9f-7a65-4240-b817-9154ffdcc30f",
+                "token_type": "Bearer",
+                "expires_at": expires_at,
+            },
+        },
+        entry_id="myuplink_test",
+    )
+
+
+@pytest.fixture(autouse=True)
+async def setup_credentials(hass: HomeAssistant) -> None:
+    """Fixture to setup credentials."""
+    assert await async_setup_component(hass, "application_credentials", {})
+    await async_import_client_credential(
+        hass,
+        DOMAIN,
+        ClientCredential(
+            CLIENT_ID,
+            CLIENT_SECRET,
+        ),
+        DOMAIN,
+    )
+
+
+@pytest.fixture
+def mock_myuplink_client() -> Generator[MagicMock, None, None]:
+    """Mock a myuplink client."""
+
+    def process_json_system(data: dict[str, Any]) -> System:
+        array = json.loads(data)
+        return [System(system_data) for system_data in array["systems"]]
+
+    with patch(
+        "homeassistant.components.myuplink.MyUplinkAPI",
+        autospec=True,
+    ) as mock_client:
+        client = mock_client.return_value
+        client.async_get_device_points_json.return_value = load_json_value_fixture(
+            "device_points_nibe_f730.json", DOMAIN
+        )
+        client.async_get_systems.return_value = process_json_system(
+            load_fixture("systems.json", DOMAIN)
+        )
+        client.async_get_device.return_value = Device(
+            load_json_value_fixture("device.json", DOMAIN)
+        )
+        client.async_get_device_json.return_value = load_json_value_fixture(
+            "device.json", DOMAIN
+        )
+        client.async_get_systems_json.return_value = load_json_value_fixture(
+            "systems.json", DOMAIN
+        )
+        yield client
+
+
+@pytest.fixture
+async def init_integration(
+    hass: HomeAssistant,
+    mock_config_entry: MockConfigEntry,
+    mock_myuplink_client: MagicMock,
+) -> MockConfigEntry:
+    """Set up the myuplink integration for testing."""
+    mock_config_entry.add_to_hass(hass)
+
+    await hass.config_entries.async_setup(mock_config_entry.entry_id)
+    await hass.async_block_till_done()
+
+    return mock_config_entry
diff --git a/tests/components/myuplink/const.py b/tests/components/myuplink/const.py
new file mode 100644
index 00000000000..6ba324db12a
--- /dev/null
+++ b/tests/components/myuplink/const.py
@@ -0,0 +1,3 @@
+"""Constants for myuplink tests."""
+CLIENT_ID = "12345"
+CLIENT_SECRET = "67890"
diff --git a/tests/components/myuplink/fixtures/device.json b/tests/components/myuplink/fixtures/device.json
new file mode 100644
index 00000000000..55382ce85b0
--- /dev/null
+++ b/tests/components/myuplink/fixtures/device.json
@@ -0,0 +1,40 @@
+{
+  "id": "batman-r-1234-20240201-123456-aa-bb-cc-dd-ee-ff",
+  "connectionState": "Connected",
+  "firmware": {
+    "currentFwVersion": "9682R7",
+    "desiredFwVersion": "9682R7"
+  },
+  "product": {
+    "serialNumber": "123456",
+    "name": "F730 CU 3x400V"
+  },
+  "availableFeatures": {
+    "settings": true,
+    "reboot": true,
+    "forcesync": true,
+    "forceUpdate": false,
+    "requestUpdate": false,
+    "resetAlarm": true,
+    "triggerEvent": true,
+    "getMenu": false,
+    "getMenuChain": false,
+    "getGuideQuestion": false,
+    "sendHaystack": true,
+    "setSmartMode": false,
+    "setAidMode": true,
+    "getZones": false,
+    "processIntent": false,
+    "boostHotWater": true,
+    "boostVentilation": true,
+    "getScheduleConfig": false,
+    "getScheduleModes": false,
+    "getScheduleWeekly": false,
+    "getScheduleVacation": false,
+    "setScheduleModes": false,
+    "setScheduleWeekly": false,
+    "setScheduleOverride": false,
+    "setScheduleVacation": false,
+    "setVentilationMode": false
+  }
+}
diff --git a/tests/components/myuplink/fixtures/device_points_nibe_f730.json b/tests/components/myuplink/fixtures/device_points_nibe_f730.json
new file mode 100644
index 00000000000..49340bd9e26
--- /dev/null
+++ b/tests/components/myuplink/fixtures/device_points_nibe_f730.json
@@ -0,0 +1,955 @@
+[
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "40004",
+    "parameterName": "Current outd temp (BT1)",
+    "parameterUnit": "°C",
+    "writable": false,
+    "timestamp": "2024-02-09T10:56:12+00:00",
+    "value": -9.3,
+    "strVal": "-9.3°C",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "40008",
+    "parameterName": "Supply line (BT2)",
+    "parameterUnit": "°C",
+    "writable": false,
+    "timestamp": "2024-02-09T10:58:51+00:00",
+    "value": 39.7,
+    "strVal": "39.7°C",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "40012",
+    "parameterName": "Return line (BT3)",
+    "parameterUnit": "°C",
+    "writable": false,
+    "timestamp": "2024-02-09T10:08:40+00:00",
+    "value": 34.4,
+    "strVal": "34.4°C",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "40013",
+    "parameterName": "Hot water top (BT7)",
+    "parameterUnit": "°C",
+    "writable": false,
+    "timestamp": "2024-02-09T08:39:32+00:00",
+    "value": 46,
+    "strVal": "46°C",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "40014",
+    "parameterName": "Hot water char­ging (BT6)",
+    "parameterUnit": "°C",
+    "writable": false,
+    "timestamp": "2024-02-09T10:58:42+00:00",
+    "value": 44.4,
+    "strVal": "44.4°C",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "40017",
+    "parameterName": "Con­denser (BT12)",
+    "parameterUnit": "°C",
+    "writable": false,
+    "timestamp": "2024-02-09T10:41:49+00:00",
+    "value": 37.7,
+    "strVal": "37.7°C",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "40018",
+    "parameterName": "Dis­charge (BT14)",
+    "parameterUnit": "°C",
+    "writable": false,
+    "timestamp": "2024-02-09T10:19:24+00:00",
+    "value": 89.1,
+    "strVal": "89.1°C",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "40019",
+    "parameterName": "Liquid line (BT15)",
+    "parameterUnit": "°C",
+    "writable": false,
+    "timestamp": "2024-02-09T10:42:11+00:00",
+    "value": 34.4,
+    "strVal": "34.4°C",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "40020",
+    "parameterName": "Evap­orator (BT16)",
+    "parameterUnit": "°C",
+    "writable": false,
+    "timestamp": "2024-02-09T11:11:00+00:00",
+    "value": -14.7,
+    "strVal": "-14.7°C",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "40022",
+    "parameterName": "Suction gas (BT17)",
+    "parameterUnit": "°C",
+    "writable": false,
+    "timestamp": "2024-02-09T11:11:28+00:00",
+    "value": -1.1,
+    "strVal": "-1.1°C",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "40025",
+    "parameterName": "Exhaust air (BT20)",
+    "parameterUnit": "°C",
+    "writable": false,
+    "timestamp": "2024-02-09T09:48:50+00:00",
+    "value": 22.5,
+    "strVal": "22.5°C",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "40026",
+    "parameterName": "Extract air (BT21)",
+    "parameterUnit": "°C",
+    "writable": false,
+    "timestamp": "2024-02-09T11:11:15+00:00",
+    "value": -12.1,
+    "strVal": "-12.1°C",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "40033",
+    "parameterName": "Room temp­erature (BT50)",
+    "parameterUnit": "°C",
+    "writable": false,
+    "timestamp": "2024-02-09T00:21:48+00:00",
+    "value": 21.2,
+    "strVal": "21.2°C",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "40047",
+    "parameterName": "Supply line (BT61)",
+    "parameterUnit": "°C",
+    "writable": false,
+    "timestamp": "2024-02-01T14:30:32+00:00",
+    "value": -32768,
+    "strVal": "-32768°C",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "40048",
+    "parameterName": "Return line (BT62)",
+    "parameterUnit": "°C",
+    "writable": false,
+    "timestamp": "2024-02-01T14:30:32+00:00",
+    "value": -32768,
+    "strVal": "-32768°C",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "40050",
+    "parameterName": "Value, air veloc­ity sensor (BS1)",
+    "parameterUnit": "",
+    "writable": false,
+    "timestamp": "2024-02-09T11:10:42+00:00",
+    "value": 101.5,
+    "strVal": "101.5",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "40067",
+    "parameterName": "Average outdoor temp (BT1)",
+    "parameterUnit": "°C",
+    "writable": false,
+    "timestamp": "2024-02-09T10:56:45+00:00",
+    "value": -12.2,
+    "strVal": "-12.2°C",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "40079",
+    "parameterName": "Current (BE1)",
+    "parameterUnit": "A",
+    "writable": false,
+    "timestamp": "2024-02-09T09:05:50+00:00",
+    "value": 3.1,
+    "strVal": "3.1A",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "40081",
+    "parameterName": "Current (BE2)",
+    "parameterUnit": "A",
+    "writable": false,
+    "timestamp": "2024-02-09T11:11:19+00:00",
+    "value": 0.3,
+    "strVal": "0.3A",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "40083",
+    "parameterName": "Current (BE3)",
+    "parameterUnit": "A",
+    "writable": false,
+    "timestamp": "2024-02-09T09:46:11+00:00",
+    "value": 5.7,
+    "strVal": "5.7A",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "40145",
+    "parameterName": "Oil temp­erature (EP15-BT29)",
+    "parameterUnit": "°C",
+    "writable": false,
+    "timestamp": "2024-02-01T14:30:32+00:00",
+    "value": 0,
+    "strVal": "0°C",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "40146",
+    "parameterName": "Oil temp­erature (BT29)",
+    "parameterUnit": "°C",
+    "writable": false,
+    "timestamp": "2024-02-01T14:30:32+00:00",
+    "value": 0,
+    "strVal": "0°C",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "40940",
+    "parameterName": "Degree minutes",
+    "parameterUnit": "",
+    "writable": true,
+    "timestamp": "2024-02-09T11:09:39+00:00",
+    "value": -875,
+    "strVal": "-875",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "40940",
+    "parameterName": "Degree minutes",
+    "parameterUnit": "",
+    "writable": true,
+    "timestamp": "2024-02-09T11:09:39+00:00",
+    "value": -875,
+    "strVal": "-875",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "41778",
+    "parameterName": "Current com­pressor fre­quency",
+    "parameterUnit": "Hz",
+    "writable": false,
+    "timestamp": "2024-02-09T10:07:47+00:00",
+    "value": 57,
+    "strVal": "57Hz",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "42770",
+    "parameterName": "Desired humid­ity",
+    "parameterUnit": "%",
+    "writable": false,
+    "timestamp": "2024-02-01T14:30:32+00:00",
+    "value": 0,
+    "strVal": "0%",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "43009",
+    "parameterName": "Calcu­lated supply climate system 1",
+    "parameterUnit": "°C",
+    "writable": false,
+    "timestamp": "2024-02-09T11:04:53+00:00",
+    "value": 37.9,
+    "strVal": "37.9°C",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "43066",
+    "parameterName": "Defrost­ing time",
+    "parameterUnit": "s",
+    "writable": false,
+    "timestamp": "2024-02-09T09:45:41+00:00",
+    "value": 0,
+    "strVal": "0s",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "43081",
+    "parameterName": "Time factor add heat",
+    "parameterUnit": "",
+    "writable": false,
+    "timestamp": "2024-02-09T10:59:11+00:00",
+    "value": 1686.9,
+    "strVal": "1686.9",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "43108",
+    "parameterName": "Current fan mode",
+    "parameterUnit": "%",
+    "writable": false,
+    "timestamp": "2024-02-08T16:27:27+00:00",
+    "value": 0,
+    "strVal": "0%",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "43109",
+    "parameterName": "Current hot water mode",
+    "parameterUnit": "",
+    "writable": false,
+    "timestamp": "2024-02-06T21:14:34+00:00",
+    "value": 0,
+    "strVal": "0",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "43115",
+    "parameterName": "Hot water: charge set point value",
+    "parameterUnit": "°C",
+    "writable": false,
+    "timestamp": "2024-02-01T14:30:32+00:00",
+    "value": 0,
+    "strVal": "0°C",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "43116",
+    "parameterName": "Hot water: charge current value ((BT12 | BT63))",
+    "parameterUnit": "°C",
+    "writable": false,
+    "timestamp": "2024-02-01T14:30:32+00:00",
+    "value": 0,
+    "strVal": "0°C",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "43122",
+    "parameterName": "Min com­pressor fre­quency",
+    "parameterUnit": "Hz",
+    "writable": false,
+    "timestamp": "2024-02-01T14:30:32+00:00",
+    "value": 20,
+    "strVal": "20Hz",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "43123",
+    "parameterName": "Max com­pressor fre­quency",
+    "parameterUnit": "Hz",
+    "writable": false,
+    "timestamp": "2024-02-09T10:07:44+00:00",
+    "value": 57,
+    "strVal": "57Hz",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "43124",
+    "parameterName": "Refer­ence, air speed sensor",
+    "parameterUnit": "m3/h",
+    "writable": false,
+    "timestamp": "2024-02-09T09:51:03+00:00",
+    "value": 127.6,
+    "strVal": "127.6m3/h",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "43125",
+    "parameterName": "De­crease from refer­ence value",
+    "parameterUnit": "%",
+    "writable": false,
+    "timestamp": "2024-02-09T11:08:28+00:00",
+    "value": -1.1,
+    "strVal": "-1.1%",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "43140",
+    "parameterName": "Invert­er temp­erature",
+    "parameterUnit": "°C",
+    "writable": false,
+    "timestamp": "2024-02-09T10:19:11+00:00",
+    "value": 37.2,
+    "strVal": "37.2°C",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "43146",
+    "parameterName": "dT Invert­er - exh air (BT20)",
+    "parameterUnit": "°C",
+    "writable": false,
+    "timestamp": "2024-02-09T10:37:53+00:00",
+    "value": 14.9,
+    "strVal": "14.9°C",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "0.1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "43161",
+    "parameterName": "Extern. adjust­ment climate system 1",
+    "parameterUnit": "",
+    "writable": false,
+    "timestamp": "2024-02-01T14:30:32+00:00",
+    "value": 0,
+    "strVal": "Off",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [
+      {
+        "value": "0",
+        "text": "Off",
+        "icon": ""
+      },
+      {
+        "value": "1",
+        "text": "On",
+        "icon": ""
+      }
+    ],
+    "scaleValue": "1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "43427",
+    "parameterName": "Status com­pressor",
+    "parameterUnit": "",
+    "writable": false,
+    "timestamp": "2024-02-09T09:46:01+00:00",
+    "value": 60,
+    "strVal": "runs",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [
+      {
+        "value": "20",
+        "text": "off",
+        "icon": ""
+      },
+      {
+        "value": "40",
+        "text": "starts",
+        "icon": ""
+      },
+      {
+        "value": "60",
+        "text": "runs",
+        "icon": ""
+      },
+      {
+        "value": "100",
+        "text": "stops",
+        "icon": ""
+      }
+    ],
+    "scaleValue": "1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "43437",
+    "parameterName": "Heating medium pump speed (GP1)",
+    "parameterUnit": "%",
+    "writable": false,
+    "timestamp": "2024-02-09T10:34:44+00:00",
+    "value": 79,
+    "strVal": "79%",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "49633",
+    "parameterName": "Desired humid­ity",
+    "parameterUnit": "%",
+    "writable": false,
+    "timestamp": "2024-02-01T14:30:32+00:00",
+    "value": 50,
+    "strVal": "50%",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [],
+    "scaleValue": "1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "49993",
+    "parameterName": "Int elec add heat",
+    "parameterUnit": "",
+    "writable": false,
+    "timestamp": "2024-02-08T18:57:28+00:00",
+    "value": 6,
+    "strVal": "Active",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [
+      {
+        "value": "0",
+        "text": "Alarm",
+        "icon": ""
+      },
+      {
+        "value": "1",
+        "text": "Alarm",
+        "icon": ""
+      },
+      {
+        "value": "2",
+        "text": "Active",
+        "icon": ""
+      },
+      {
+        "value": "3",
+        "text": "Off",
+        "icon": ""
+      },
+      {
+        "value": "4",
+        "text": "Blocked",
+        "icon": ""
+      },
+      {
+        "value": "5",
+        "text": "Off",
+        "icon": ""
+      },
+      {
+        "value": "6",
+        "text": "Active",
+        "icon": ""
+      }
+    ],
+    "scaleValue": "1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "49994",
+    "parameterName": "Prior­ity",
+    "parameterUnit": "",
+    "writable": false,
+    "timestamp": "2024-02-08T19:13:05+00:00",
+    "value": 30,
+    "strVal": "Heating",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [
+      {
+        "value": "10",
+        "text": "Off",
+        "icon": ""
+      },
+      {
+        "value": "20",
+        "text": "Hot water",
+        "icon": ""
+      },
+      {
+        "value": "30",
+        "text": "Heating",
+        "icon": ""
+      },
+      {
+        "value": "40",
+        "text": "Pool",
+        "icon": ""
+      },
+      {
+        "value": "41",
+        "text": "Pool 2",
+        "icon": ""
+      },
+      {
+        "value": "50",
+        "text": "Trans­fer",
+        "icon": ""
+      },
+      {
+        "value": "60",
+        "text": "Cooling",
+        "icon": ""
+      }
+    ],
+    "scaleValue": "1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "49995",
+    "parameterName": "Pump: Heating medium (GP1)",
+    "parameterUnit": "",
+    "writable": false,
+    "timestamp": "2024-02-01T14:30:32+00:00",
+    "value": 1,
+    "strVal": "On",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [
+      {
+        "value": "0",
+        "text": "Off",
+        "icon": ""
+      },
+      {
+        "value": "1",
+        "text": "On",
+        "icon": ""
+      }
+    ],
+    "scaleValue": "1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "50004",
+    "parameterName": "Tempo­rary lux",
+    "parameterUnit": "",
+    "writable": true,
+    "timestamp": "2024-02-04T21:06:26+00:00",
+    "value": 0,
+    "strVal": "off",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [
+      {
+        "value": "0",
+        "text": "off",
+        "icon": ""
+      },
+      {
+        "value": "1",
+        "text": "on",
+        "icon": ""
+      }
+    ],
+    "scaleValue": "1",
+    "zoneId": null
+  },
+  {
+    "category": "NIBEF F730 CU 3x400V",
+    "parameterId": "50005",
+    "parameterName": "In­creased venti­lation",
+    "parameterUnit": "",
+    "writable": true,
+    "timestamp": "2024-02-08T16:27:26+00:00",
+    "value": 0,
+    "strVal": "off",
+    "smartHomeCategories": [],
+    "minValue": null,
+    "maxValue": null,
+    "stepValue": 1,
+    "enumValues": [
+      {
+        "value": "0",
+        "text": "off",
+        "icon": ""
+      },
+      {
+        "value": "1",
+        "text": "on",
+        "icon": ""
+      }
+    ],
+    "scaleValue": "1",
+    "zoneId": null
+  }
+]
diff --git a/tests/components/myuplink/fixtures/systems.json b/tests/components/myuplink/fixtures/systems.json
new file mode 100644
index 00000000000..151e9f55a8d
--- /dev/null
+++ b/tests/components/myuplink/fixtures/systems.json
@@ -0,0 +1,25 @@
+{
+  "page": 1,
+  "itemsPerPage": 10,
+  "numItems": 1,
+  "systems": [
+    {
+      "systemId": "123456-7890-1234",
+      "name": "Gotham City",
+      "securityLevel": "admin",
+      "hasAlarm": false,
+      "country": "Sweden",
+      "devices": [
+        {
+          "id": "batman-r-1234-20240201-123456-aa-bb-cc-dd-ee-ff",
+          "connectionState": "Connected",
+          "currentFwVersion": "9682R7",
+          "product": {
+            "serialNumber": "123456",
+            "name": "F730 CU 3x400V"
+          }
+        }
+      ]
+    }
+  ]
+}
diff --git a/tests/components/myuplink/snapshots/test_diagnostics.ambr b/tests/components/myuplink/snapshots/test_diagnostics.ambr
new file mode 100644
index 00000000000..45cb48244e6
--- /dev/null
+++ b/tests/components/myuplink/snapshots/test_diagnostics.ambr
@@ -0,0 +1,1132 @@
+# serializer version: 1
+# name: test_diagnostics
+  dict({
+    'config_entry_data': dict({
+      'auth_implementation': 'myuplink',
+      'token': dict({
+        'access_token': '**REDACTED**',
+        'expires_in': 86399,
+        'refresh_token': '**REDACTED**',
+        'scope': 'READSYSTEM offline',
+        'token_type': 'Bearer',
+      }),
+    }),
+    'myuplink_data': dict({
+      'my_systems': dict({
+        'devices': list([
+          dict({
+            '123456-7890-1234': dict({
+              'device_data': dict({
+                'availableFeatures': dict({
+                  'boostHotWater': True,
+                  'boostVentilation': True,
+                  'forceUpdate': False,
+                  'forcesync': True,
+                  'getGuideQuestion': False,
+                  'getMenu': False,
+                  'getMenuChain': False,
+                  'getScheduleConfig': False,
+                  'getScheduleModes': False,
+                  'getScheduleVacation': False,
+                  'getScheduleWeekly': False,
+                  'getZones': False,
+                  'processIntent': False,
+                  'reboot': True,
+                  'requestUpdate': False,
+                  'resetAlarm': True,
+                  'sendHaystack': True,
+                  'setAidMode': True,
+                  'setScheduleModes': False,
+                  'setScheduleOverride': False,
+                  'setScheduleVacation': False,
+                  'setScheduleWeekly': False,
+                  'setSmartMode': False,
+                  'setVentilationMode': False,
+                  'settings': True,
+                  'triggerEvent': True,
+                }),
+                'connectionState': 'Connected',
+                'firmware': dict({
+                  'currentFwVersion': '9682R7',
+                  'desiredFwVersion': '9682R7',
+                }),
+                'id': 'batman-r-1234-20240201-123456-aa-bb-cc-dd-ee-ff',
+                'product': dict({
+                  'name': 'F730 CU 3x400V',
+                  'serialNumber': '**REDACTED**',
+                }),
+              }),
+              'points': list([
+                dict({
+                  'category': 'NIBEF F730 CU 3x400V',
+                  'enumValues': list([
+                  ]),
+                  'maxValue': None,
+                  'minValue': None,
+                  'parameterId': '40004',
+                  'parameterName': 'Current outd temp (BT1)',
+                  'parameterUnit': '°C',
+                  'scaleValue': '0.1',
+                  'smartHomeCategories': list([
+                  ]),
+                  'stepValue': 1,
+                  'strVal': '-9.3°C',
+                  'timestamp': '2024-02-09T10:56:12+00:00',
+                  'value': -9.3,
+                  'writable': False,
+                  'zoneId': None,
+                }),
+                dict({
+                  'category': 'NIBEF F730 CU 3x400V',
+                  'enumValues': list([
+                  ]),
+                  'maxValue': None,
+                  'minValue': None,
+                  'parameterId': '40008',
+                  'parameterName': 'Supply line (BT2)',
+                  'parameterUnit': '°C',
+                  'scaleValue': '0.1',
+                  'smartHomeCategories': list([
+                  ]),
+                  'stepValue': 1,
+                  'strVal': '39.7°C',
+                  'timestamp': '2024-02-09T10:58:51+00:00',
+                  'value': 39.7,
+                  'writable': False,
+                  'zoneId': None,
+                }),
+                dict({
+                  'category': 'NIBEF F730 CU 3x400V',
+                  'enumValues': list([
+                  ]),
+                  'maxValue': None,
+                  'minValue': None,
+                  'parameterId': '40012',
+                  'parameterName': 'Return line (BT3)',
+                  'parameterUnit': '°C',
+                  'scaleValue': '0.1',
+                  'smartHomeCategories': list([
+                  ]),
+                  'stepValue': 1,
+                  'strVal': '34.4°C',
+                  'timestamp': '2024-02-09T10:08:40+00:00',
+                  'value': 34.4,
+                  'writable': False,
+                  'zoneId': None,
+                }),
+                dict({
+                  'category': 'NIBEF F730 CU 3x400V',
+                  'enumValues': list([
+                  ]),
+                  'maxValue': None,
+                  'minValue': None,
+                  'parameterId': '40013',
+                  'parameterName': 'Hot water top (BT7)',
+                  'parameterUnit': '°C',
+                  'scaleValue': '0.1',
+                  'smartHomeCategories': list([
+                  ]),
+                  'stepValue': 1,
+                  'strVal': '46°C',
+                  'timestamp': '2024-02-09T08:39:32+00:00',
+                  'value': 46,
+                  'writable': False,
+                  'zoneId': None,
+                }),
+                dict({
+                  'category': 'NIBEF F730 CU 3x400V',
+                  'enumValues': list([
+                  ]),
+                  'maxValue': None,
+                  'minValue': None,
+                  'parameterId': '40014',
+                  'parameterName': 'Hot water char\xadging (BT6)',
+                  'parameterUnit': '°C',
+                  'scaleValue': '0.1',
+                  'smartHomeCategories': list([
+                  ]),
+                  'stepValue': 1,
+                  'strVal': '44.4°C',
+                  'timestamp': '2024-02-09T10:58:42+00:00',
+                  'value': 44.4,
+                  'writable': False,
+                  'zoneId': None,
+                }),
+                dict({
+                  'category': 'NIBEF F730 CU 3x400V',
+                  'enumValues': list([
+                  ]),
+                  'maxValue': None,
+                  'minValue': None,
+                  'parameterId': '40017',
+                  'parameterName': 'Con\xaddenser (BT12)',
+                  'parameterUnit': '°C',
+                  'scaleValue': '0.1',
+                  'smartHomeCategories': list([
+                  ]),
+                  'stepValue': 1,
+                  'strVal': '37.7°C',
+                  'timestamp': '2024-02-09T10:41:49+00:00',
+                  'value': 37.7,
+                  'writable': False,
+                  'zoneId': None,
+                }),
+                dict({
+                  'category': 'NIBEF F730 CU 3x400V',
+                  'enumValues': list([
+                  ]),
+                  'maxValue': None,
+                  'minValue': None,
+                  'parameterId': '40018',
+                  'parameterName': 'Dis\xadcharge (BT14)',
+                  'parameterUnit': '°C',
+                  'scaleValue': '0.1',
+                  'smartHomeCategories': list([
+                  ]),
+                  'stepValue': 1,
+                  'strVal': '89.1°C',
+                  'timestamp': '2024-02-09T10:19:24+00:00',
+                  'value': 89.1,
+                  'writable': False,
+                  'zoneId': None,
+                }),
+                dict({
+                  'category': 'NIBEF F730 CU 3x400V',
+                  'enumValues': list([
+                  ]),
+                  'maxValue': None,
+                  'minValue': None,
+                  'parameterId': '40019',
+                  'parameterName': 'Liquid line (BT15)',
+                  'parameterUnit': '°C',
+                  'scaleValue': '0.1',
+                  'smartHomeCategories': list([
+                  ]),
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+                  ]),
+                  'maxValue': None,
+                  'minValue': None,
+                  'parameterId': '49993',
+                  'parameterName': 'Int elec add heat',
+                  'parameterUnit': '',
+                  'scaleValue': '1',
+                  'smartHomeCategories': list([
+                  ]),
+                  'stepValue': 1,
+                  'strVal': 'Active',
+                  'timestamp': '2024-02-08T18:57:28+00:00',
+                  'value': 6,
+                  'writable': False,
+                  'zoneId': None,
+                }),
+                dict({
+                  'category': 'NIBEF F730 CU 3x400V',
+                  'enumValues': list([
+                    dict({
+                      'icon': '',
+                      'text': 'Off',
+                      'value': '10',
+                    }),
+                    dict({
+                      'icon': '',
+                      'text': 'Hot water',
+                      'value': '20',
+                    }),
+                    dict({
+                      'icon': '',
+                      'text': 'Heating',
+                      'value': '30',
+                    }),
+                    dict({
+                      'icon': '',
+                      'text': 'Pool',
+                      'value': '40',
+                    }),
+                    dict({
+                      'icon': '',
+                      'text': 'Pool 2',
+                      'value': '41',
+                    }),
+                    dict({
+                      'icon': '',
+                      'text': 'Trans\xadfer',
+                      'value': '50',
+                    }),
+                    dict({
+                      'icon': '',
+                      'text': 'Cooling',
+                      'value': '60',
+                    }),
+                  ]),
+                  'maxValue': None,
+                  'minValue': None,
+                  'parameterId': '49994',
+                  'parameterName': 'Prior\xadity',
+                  'parameterUnit': '',
+                  'scaleValue': '1',
+                  'smartHomeCategories': list([
+                  ]),
+                  'stepValue': 1,
+                  'strVal': 'Heating',
+                  'timestamp': '2024-02-08T19:13:05+00:00',
+                  'value': 30,
+                  'writable': False,
+                  'zoneId': None,
+                }),
+                dict({
+                  'category': 'NIBEF F730 CU 3x400V',
+                  'enumValues': list([
+                    dict({
+                      'icon': '',
+                      'text': 'Off',
+                      'value': '0',
+                    }),
+                    dict({
+                      'icon': '',
+                      'text': 'On',
+                      'value': '1',
+                    }),
+                  ]),
+                  'maxValue': None,
+                  'minValue': None,
+                  'parameterId': '49995',
+                  'parameterName': 'Pump: Heating medium (GP1)',
+                  'parameterUnit': '',
+                  'scaleValue': '1',
+                  'smartHomeCategories': list([
+                  ]),
+                  'stepValue': 1,
+                  'strVal': 'On',
+                  'timestamp': '2024-02-01T14:30:32+00:00',
+                  'value': 1,
+                  'writable': False,
+                  'zoneId': None,
+                }),
+                dict({
+                  'category': 'NIBEF F730 CU 3x400V',
+                  'enumValues': list([
+                    dict({
+                      'icon': '',
+                      'text': 'off',
+                      'value': '0',
+                    }),
+                    dict({
+                      'icon': '',
+                      'text': 'on',
+                      'value': '1',
+                    }),
+                  ]),
+                  'maxValue': None,
+                  'minValue': None,
+                  'parameterId': '50004',
+                  'parameterName': 'Tempo\xadrary lux',
+                  'parameterUnit': '',
+                  'scaleValue': '1',
+                  'smartHomeCategories': list([
+                  ]),
+                  'stepValue': 1,
+                  'strVal': 'off',
+                  'timestamp': '2024-02-04T21:06:26+00:00',
+                  'value': 0,
+                  'writable': True,
+                  'zoneId': None,
+                }),
+                dict({
+                  'category': 'NIBEF F730 CU 3x400V',
+                  'enumValues': list([
+                    dict({
+                      'icon': '',
+                      'text': 'off',
+                      'value': '0',
+                    }),
+                    dict({
+                      'icon': '',
+                      'text': 'on',
+                      'value': '1',
+                    }),
+                  ]),
+                  'maxValue': None,
+                  'minValue': None,
+                  'parameterId': '50005',
+                  'parameterName': 'In\xadcreased venti\xadlation',
+                  'parameterUnit': '',
+                  'scaleValue': '1',
+                  'smartHomeCategories': list([
+                  ]),
+                  'stepValue': 1,
+                  'strVal': 'off',
+                  'timestamp': '2024-02-08T16:27:26+00:00',
+                  'value': 0,
+                  'writable': True,
+                  'zoneId': None,
+                }),
+              ]),
+            }),
+          }),
+        ]),
+        'itemsPerPage': 10,
+        'numItems': 1,
+        'page': 1,
+        'systems': list([
+          dict({
+            'country': 'Sweden',
+            'devices': list([
+              dict({
+                'connectionState': 'Connected',
+                'currentFwVersion': '9682R7',
+                'id': 'batman-r-1234-20240201-123456-aa-bb-cc-dd-ee-ff',
+                'product': dict({
+                  'name': 'F730 CU 3x400V',
+                  'serialNumber': '**REDACTED**',
+                }),
+              }),
+            ]),
+            'hasAlarm': False,
+            'name': 'Gotham City',
+            'securityLevel': 'admin',
+            'systemId': '123456-7890-1234',
+          }),
+        ]),
+      }),
+    }),
+  })
+# ---
diff --git a/tests/components/myuplink/test_diagnostics.py b/tests/components/myuplink/test_diagnostics.py
new file mode 100644
index 00000000000..047ec06d4f2
--- /dev/null
+++ b/tests/components/myuplink/test_diagnostics.py
@@ -0,0 +1,26 @@
+"""Tests for the diagnostics data provided by the myuplink integration."""
+
+from syrupy import SnapshotAssertion
+from syrupy.filters import paths
+
+from homeassistant.core import HomeAssistant
+
+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,
+    mock_config_entry: MockConfigEntry,
+    init_integration,
+    snapshot: SnapshotAssertion,
+) -> None:
+    """Test diagnostics."""
+
+    assert await get_diagnostics_for_config_entry(
+        hass, hass_client, mock_config_entry
+    ) == snapshot(
+        exclude=paths("config_entry_data.token.expires_at", "myuplink_test.entry_id")
+    )
diff --git a/tests/components/myuplink/test_update.py b/tests/components/myuplink/test_update.py
new file mode 100644
index 00000000000..f25993e8ef6
--- /dev/null
+++ b/tests/components/myuplink/test_update.py
@@ -0,0 +1,22 @@
+"""Tests for myuplink update module."""
+
+from unittest.mock import AsyncMock
+
+from homeassistant.core import HomeAssistant
+
+from . import setup_integration
+
+from tests.common import MockConfigEntry
+
+
+async def test_update_states(
+    hass: HomeAssistant,
+    mock_myuplink_client: AsyncMock,
+    mock_config_entry: MockConfigEntry,
+) -> None:
+    """Test update state."""
+    await setup_integration(hass, mock_config_entry)
+
+    state = hass.states.get("update.f730_cu_3x400v_firmware")
+    assert state is not None
+    assert state.state == "off"