Reolink add 100% coverage of binary_sensor platfrom (#123862)

* Implement 100% coverage of binary_sensor

* fix styling

* Apply suggestions from code review

Co-authored-by: Joost Lekkerkerker <joostlek@outlook.com>

* use get().state instead of is_state

* Remove unneeded "is True"

* Remove unneeded "is True"

* reset the mock and use assert_not_called

* use freezer

* fix styling

* fix styling

---------

Co-authored-by: Joost Lekkerkerker <joostlek@outlook.com>

tests/components/reolink/test_config_flow.py

@@ -1,10 +1,10 @@
 """Test the Reolink config flow."""
 
-from datetime import timedelta
 import json
 from typing import Any
 from unittest.mock import AsyncMock, MagicMock, call
 
+from freezegun.api import FrozenDateTimeFactory
 import pytest
 from reolink_aio.exceptions import ApiError, CredentialsInvalidError, ReolinkError
 
@@ -25,7 +25,6 @@ from homeassistant.const import (
 from homeassistant.core import HomeAssistant
 from homeassistant.data_entry_flow import FlowResultType
 from homeassistant.helpers.device_registry import format_mac
-from homeassistant.util.dt import utcnow
 
 from .conftest import (
     DHCP_FORMATTED_MAC,
@@ -439,6 +438,7 @@ async def test_dhcp_flow(hass: HomeAssistant, mock_setup_entry: MagicMock) -> No
 )
 async def test_dhcp_ip_update(
     hass: HomeAssistant,
+    freezer: FrozenDateTimeFactory,
     reolink_connect_class: MagicMock,
     reolink_connect: MagicMock,
     last_update_success: bool,
@@ -472,9 +472,8 @@ async def test_dhcp_ip_update(
     if not last_update_success:
         # ensure the last_update_succes is False for the device_coordinator.
         reolink_connect.get_states = AsyncMock(side_effect=ReolinkError("Test error"))
-        async_fire_time_changed(
-            hass, utcnow() + DEVICE_UPDATE_INTERVAL + timedelta(minutes=1)
-        )
+        freezer.tick(DEVICE_UPDATE_INTERVAL)
+        async_fire_time_changed(hass)
         await hass.async_block_till_done()
 
     dhcp_data = dhcp.DhcpServiceInfo(