diff --git a/tests/components/modbus/test_binary_sensor.py b/tests/components/modbus/test_binary_sensor.py
index 6aae0e7feaeac618ff4f91e65e26d06f77bc3610..24293377174c54b073237ef6eb1903aa6d76abc9 100644
--- a/tests/components/modbus/test_binary_sensor.py
+++ b/tests/components/modbus/test_binary_sensor.py
@@ -3,6 +3,7 @@
 import pytest
 
 from homeassistant.components.binary_sensor import DOMAIN as SENSOR_DOMAIN
+from homeassistant.components.homeassistant import SERVICE_UPDATE_ENTITY
 from homeassistant.components.modbus.const import (
     CALL_TYPE_COIL,
     CALL_TYPE_DISCRETE,
@@ -15,10 +16,12 @@ from homeassistant.components.modbus.const import (
     MODBUS_DOMAIN,
 )
 from homeassistant.const import (
+    ATTR_ENTITY_ID,
     CONF_ADDRESS,
     CONF_BINARY_SENSORS,
     CONF_DEVICE_CLASS,
     CONF_NAME,
+    CONF_PLATFORM,
     CONF_SCAN_INTERVAL,
     CONF_SLAVE,
     CONF_UNIQUE_ID,
@@ -26,7 +29,7 @@ from homeassistant.const import (
     STATE_ON,
     STATE_UNAVAILABLE,
 )
-from homeassistant.core import HomeAssistant, State
+from homeassistant.core import DOMAIN as HOMEASSISTANT_DOMAIN, HomeAssistant, State
 from homeassistant.helpers import entity_registry as er
 from homeassistant.setup import async_setup_component
 
@@ -212,14 +215,20 @@ async def test_service_binary_sensor_update(
     """Run test for service homeassistant.update_entity."""
 
     await hass.services.async_call(
-        "homeassistant", "update_entity", {"entity_id": ENTITY_ID}, blocking=True
+        HOMEASSISTANT_DOMAIN,
+        SERVICE_UPDATE_ENTITY,
+        {ATTR_ENTITY_ID: ENTITY_ID},
+        blocking=True,
     )
     await hass.async_block_till_done()
     assert hass.states.get(ENTITY_ID).state == STATE_OFF
 
     mock_modbus_ha.read_coils.return_value = ReadResult([0x01])
     await hass.services.async_call(
-        "homeassistant", "update_entity", {"entity_id": ENTITY_ID}, blocking=True
+        HOMEASSISTANT_DOMAIN,
+        SERVICE_UPDATE_ENTITY,
+        {ATTR_ENTITY_ID: ENTITY_ID},
+        blocking=True,
     )
     await hass.async_block_till_done()
     assert hass.states.get(ENTITY_ID).state == STATE_ON
@@ -428,7 +437,7 @@ async def test_no_discovery_info_binary_sensor(
     assert await async_setup_component(
         hass,
         SENSOR_DOMAIN,
-        {SENSOR_DOMAIN: {"platform": MODBUS_DOMAIN}},
+        {SENSOR_DOMAIN: {CONF_PLATFORM: MODBUS_DOMAIN}},
     )
     await hass.async_block_till_done()
     assert SENSOR_DOMAIN in hass.config.components
diff --git a/tests/components/modbus/test_climate.py b/tests/components/modbus/test_climate.py
index 5578234ee6eaa95604beb1e6417abb95b10dfbdf..d34846639b5bf5d3f5af01aa0e8c3bea2f66742b 100644
--- a/tests/components/modbus/test_climate.py
+++ b/tests/components/modbus/test_climate.py
@@ -20,6 +20,10 @@ from homeassistant.components.climate import (
     FAN_OFF,
     FAN_ON,
     FAN_TOP,
+    SERVICE_SET_FAN_MODE,
+    SERVICE_SET_HVAC_MODE,
+    SERVICE_SET_SWING_MODE,
+    SERVICE_SET_TEMPERATURE,
     SWING_BOTH,
     SWING_HORIZONTAL,
     SWING_OFF,
@@ -27,6 +31,7 @@ from homeassistant.components.climate import (
     SWING_VERTICAL,
     HVACMode,
 )
+from homeassistant.components.homeassistant import SERVICE_UPDATE_ENTITY
 from homeassistant.components.modbus.const import (
     CONF_CLIMATES,
     CONF_DATA_TYPE,
@@ -66,15 +71,17 @@ from homeassistant.components.modbus.const import (
     DataType,
 )
 from homeassistant.const import (
+    ATTR_ENTITY_ID,
     ATTR_TEMPERATURE,
     CONF_ADDRESS,
     CONF_NAME,
+    CONF_PLATFORM,
     CONF_SCAN_INTERVAL,
     CONF_SLAVE,
     STATE_UNAVAILABLE,
     STATE_UNKNOWN,
 )
-from homeassistant.core import HomeAssistant, State
+from homeassistant.core import DOMAIN as HOMEASSISTANT_DOMAIN, HomeAssistant, State
 from homeassistant.setup import async_setup_component
 
 from .conftest import TEST_ENTITY_NAME, ReadResult
@@ -152,13 +159,13 @@ ENTITY_ID = f"{CLIMATE_DOMAIN}.{TEST_ENTITY_NAME}".replace(" ", "_")
                     CONF_HVAC_MODE_REGISTER: {
                         CONF_ADDRESS: 11,
                         CONF_HVAC_MODE_VALUES: {
-                            "state_off": 0,
-                            "state_heat": 1,
-                            "state_cool": 2,
-                            "state_heat_cool": 3,
-                            "state_dry": 4,
-                            "state_fan_only": 5,
-                            "state_auto": 6,
+                            CONF_HVAC_MODE_OFF: 0,
+                            CONF_HVAC_MODE_HEAT: 1,
+                            CONF_HVAC_MODE_COOL: 2,
+                            CONF_HVAC_MODE_HEAT_COOL: 3,
+                            CONF_HVAC_MODE_DRY: 4,
+                            CONF_HVAC_MODE_FAN_ONLY: 5,
+                            CONF_HVAC_MODE_AUTO: 6,
                         },
                     },
                 }
@@ -176,13 +183,13 @@ ENTITY_ID = f"{CLIMATE_DOMAIN}.{TEST_ENTITY_NAME}".replace(" ", "_")
                         CONF_ADDRESS: 11,
                         CONF_WRITE_REGISTERS: True,
                         CONF_HVAC_MODE_VALUES: {
-                            "state_off": 0,
-                            "state_heat": 1,
-                            "state_cool": 2,
-                            "state_heat_cool": 3,
-                            "state_dry": 4,
-                            "state_fan_only": 5,
-                            "state_auto": 6,
+                            CONF_HVAC_MODE_OFF: 0,
+                            CONF_HVAC_MODE_HEAT: 1,
+                            CONF_HVAC_MODE_COOL: 2,
+                            CONF_HVAC_MODE_HEAT_COOL: 3,
+                            CONF_HVAC_MODE_DRY: 4,
+                            CONF_HVAC_MODE_FAN_ONLY: 5,
+                            CONF_HVAC_MODE_AUTO: 6,
                         },
                     },
                 }
@@ -501,7 +508,10 @@ async def test_service_climate_update(
     """Run test for service homeassistant.update_entity."""
     mock_modbus_ha.read_holding_registers.return_value = ReadResult(register_words)
     await hass.services.async_call(
-        "homeassistant", "update_entity", {"entity_id": ENTITY_ID}, blocking=True
+        HOMEASSISTANT_DOMAIN,
+        SERVICE_UPDATE_ENTITY,
+        {ATTR_ENTITY_ID: ENTITY_ID},
+        blocking=True,
     )
     await hass.async_block_till_done()
     assert hass.states.get(ENTITY_ID).state == result
@@ -616,7 +626,10 @@ async def test_service_climate_fan_update(
     """Run test for service homeassistant.update_entity."""
     mock_modbus_ha.read_holding_registers.return_value = ReadResult(register_words)
     await hass.services.async_call(
-        "homeassistant", "update_entity", {"entity_id": ENTITY_ID}, blocking=True
+        HOMEASSISTANT_DOMAIN,
+        SERVICE_UPDATE_ENTITY,
+        {ATTR_ENTITY_ID: ENTITY_ID},
+        blocking=True,
     )
     await hass.async_block_till_done()
     assert hass.states.get(ENTITY_ID).attributes[ATTR_FAN_MODE] == result
@@ -756,7 +769,10 @@ async def test_service_climate_swing_update(
     """Run test for service homeassistant.update_entity."""
     mock_modbus_ha.read_holding_registers.return_value = ReadResult(register_words)
     await hass.services.async_call(
-        "homeassistant", "update_entity", {"entity_id": ENTITY_ID}, blocking=True
+        HOMEASSISTANT_DOMAIN,
+        SERVICE_UPDATE_ENTITY,
+        {ATTR_ENTITY_ID: ENTITY_ID},
+        blocking=True,
     )
     await hass.async_block_till_done()
     assert hass.states.get(ENTITY_ID).attributes[ATTR_SWING_MODE] == result
@@ -850,9 +866,9 @@ async def test_service_climate_set_temperature(
     mock_modbus_ha.read_holding_registers.return_value = ReadResult(result)
     await hass.services.async_call(
         CLIMATE_DOMAIN,
-        "set_temperature",
+        SERVICE_SET_TEMPERATURE,
         {
-            "entity_id": ENTITY_ID,
+            ATTR_ENTITY_ID: ENTITY_ID,
             ATTR_TEMPERATURE: temperature,
         },
         blocking=True,
@@ -961,9 +977,9 @@ async def test_service_set_hvac_mode(
 
     await hass.services.async_call(
         CLIMATE_DOMAIN,
-        "set_hvac_mode",
+        SERVICE_SET_HVAC_MODE,
         {
-            "entity_id": ENTITY_ID,
+            ATTR_ENTITY_ID: ENTITY_ID,
             ATTR_HVAC_MODE: hvac_mode,
         },
         blocking=True,
@@ -1024,9 +1040,9 @@ async def test_service_set_fan_mode(
     mock_modbus_ha.read_holding_registers.return_value = ReadResult(result)
     await hass.services.async_call(
         CLIMATE_DOMAIN,
-        "set_fan_mode",
+        SERVICE_SET_FAN_MODE,
         {
-            "entity_id": ENTITY_ID,
+            ATTR_ENTITY_ID: ENTITY_ID,
             ATTR_FAN_MODE: fan_mode,
         },
         blocking=True,
@@ -1087,9 +1103,9 @@ async def test_service_set_swing_mode(
     mock_modbus_ha.read_holding_registers.return_value = ReadResult(result)
     await hass.services.async_call(
         CLIMATE_DOMAIN,
-        "set_swing_mode",
+        SERVICE_SET_SWING_MODE,
         {
-            "entity_id": ENTITY_ID,
+            ATTR_ENTITY_ID: ENTITY_ID,
             ATTR_SWING_MODE: swing_mode,
         },
         blocking=True,
@@ -1174,7 +1190,7 @@ async def test_no_discovery_info_climate(
     assert await async_setup_component(
         hass,
         CLIMATE_DOMAIN,
-        {CLIMATE_DOMAIN: {"platform": MODBUS_DOMAIN}},
+        {CLIMATE_DOMAIN: {CONF_PLATFORM: MODBUS_DOMAIN}},
     )
     await hass.async_block_till_done()
     assert CLIMATE_DOMAIN in hass.config.components
diff --git a/tests/components/modbus/test_cover.py b/tests/components/modbus/test_cover.py
index e2b4d658f7db20c541e15651ad44fa08926e361b..ae709f483e111477c9efc0941fc7db314a0e121b 100644
--- a/tests/components/modbus/test_cover.py
+++ b/tests/components/modbus/test_cover.py
@@ -4,6 +4,7 @@ from pymodbus.exceptions import ModbusException
 import pytest
 
 from homeassistant.components.cover import DOMAIN as COVER_DOMAIN, CoverState
+from homeassistant.components.homeassistant import SERVICE_UPDATE_ENTITY
 from homeassistant.components.modbus.const import (
     CALL_TYPE_COIL,
     CALL_TYPE_REGISTER_HOLDING,
@@ -18,14 +19,18 @@ from homeassistant.components.modbus.const import (
     MODBUS_DOMAIN,
 )
 from homeassistant.const import (
+    ATTR_ENTITY_ID,
     CONF_ADDRESS,
     CONF_COVERS,
     CONF_NAME,
+    CONF_PLATFORM,
     CONF_SCAN_INTERVAL,
     CONF_SLAVE,
+    SERVICE_CLOSE_COVER,
+    SERVICE_OPEN_COVER,
     STATE_UNAVAILABLE,
 )
-from homeassistant.core import HomeAssistant, State
+from homeassistant.core import DOMAIN as HOMEASSISTANT_DOMAIN, HomeAssistant, State
 from homeassistant.setup import async_setup_component
 
 from .conftest import TEST_ENTITY_NAME, ReadResult
@@ -181,12 +186,18 @@ async def test_register_cover(hass: HomeAssistant, expected, mock_do_cycle) -> N
 async def test_service_cover_update(hass: HomeAssistant, mock_modbus_ha) -> None:
     """Run test for service homeassistant.update_entity."""
     await hass.services.async_call(
-        "homeassistant", "update_entity", {"entity_id": ENTITY_ID}, blocking=True
+        HOMEASSISTANT_DOMAIN,
+        "update_entity",
+        {ATTR_ENTITY_ID: ENTITY_ID},
+        blocking=True,
     )
     assert hass.states.get(ENTITY_ID).state == CoverState.CLOSED
     mock_modbus_ha.read_holding_registers.return_value = ReadResult([0x01])
     await hass.services.async_call(
-        "homeassistant", "update_entity", {"entity_id": ENTITY_ID}, blocking=True
+        HOMEASSISTANT_DOMAIN,
+        SERVICE_UPDATE_ENTITY,
+        {ATTR_ENTITY_ID: ENTITY_ID},
+        blocking=True,
     )
     assert hass.states.get(ENTITY_ID).state == CoverState.OPEN
 
@@ -256,27 +267,27 @@ async def test_service_cover_move(hass: HomeAssistant, mock_modbus_ha) -> None:
 
     mock_modbus_ha.read_holding_registers.return_value = ReadResult([0x01])
     await hass.services.async_call(
-        "cover", "open_cover", {"entity_id": ENTITY_ID}, blocking=True
+        COVER_DOMAIN, SERVICE_OPEN_COVER, {ATTR_ENTITY_ID: ENTITY_ID}, blocking=True
     )
     assert hass.states.get(ENTITY_ID).state == CoverState.OPEN
 
     mock_modbus_ha.read_holding_registers.return_value = ReadResult([0x00])
     await hass.services.async_call(
-        "cover", "close_cover", {"entity_id": ENTITY_ID}, blocking=True
+        COVER_DOMAIN, SERVICE_CLOSE_COVER, {ATTR_ENTITY_ID: ENTITY_ID}, blocking=True
     )
     assert hass.states.get(ENTITY_ID).state == CoverState.CLOSED
 
     await mock_modbus_ha.reset()
     mock_modbus_ha.read_holding_registers.side_effect = ModbusException("fail write_")
     await hass.services.async_call(
-        "cover", "close_cover", {"entity_id": ENTITY_ID}, blocking=True
+        COVER_DOMAIN, SERVICE_CLOSE_COVER, {ATTR_ENTITY_ID: ENTITY_ID}, blocking=True
     )
     assert mock_modbus_ha.read_holding_registers.called
     assert hass.states.get(ENTITY_ID).state == STATE_UNAVAILABLE
 
     mock_modbus_ha.read_coils.side_effect = ModbusException("fail write_")
     await hass.services.async_call(
-        "cover", "close_cover", {"entity_id": ENTITY_ID2}, blocking=True
+        COVER_DOMAIN, SERVICE_CLOSE_COVER, {ATTR_ENTITY_ID: ENTITY_ID2}, blocking=True
     )
     assert hass.states.get(ENTITY_ID2).state == STATE_UNAVAILABLE
 
@@ -289,7 +300,7 @@ async def test_no_discovery_info_cover(
     assert await async_setup_component(
         hass,
         COVER_DOMAIN,
-        {COVER_DOMAIN: {"platform": MODBUS_DOMAIN}},
+        {COVER_DOMAIN: {CONF_PLATFORM: MODBUS_DOMAIN}},
     )
     await hass.async_block_till_done()
     assert COVER_DOMAIN in hass.config.components
diff --git a/tests/components/modbus/test_fan.py b/tests/components/modbus/test_fan.py
index d52b9dc309a82b152a65e6ca895a5bacb930d759..2afc6314048be29503dd222eedc2ac03d6d186d7 100644
--- a/tests/components/modbus/test_fan.py
+++ b/tests/components/modbus/test_fan.py
@@ -4,6 +4,7 @@ from pymodbus.exceptions import ModbusException
 import pytest
 
 from homeassistant.components.fan import DOMAIN as FAN_DOMAIN
+from homeassistant.components.homeassistant import SERVICE_UPDATE_ENTITY
 from homeassistant.components.modbus.const import (
     CALL_TYPE_COIL,
     CALL_TYPE_DISCRETE,
@@ -19,17 +20,21 @@ from homeassistant.components.modbus.const import (
     MODBUS_DOMAIN,
 )
 from homeassistant.const import (
+    ATTR_ENTITY_ID,
     CONF_ADDRESS,
     CONF_COMMAND_OFF,
     CONF_COMMAND_ON,
     CONF_NAME,
+    CONF_PLATFORM,
     CONF_SCAN_INTERVAL,
     CONF_SLAVE,
+    SERVICE_TURN_OFF,
+    SERVICE_TURN_ON,
     STATE_OFF,
     STATE_ON,
     STATE_UNAVAILABLE,
 )
-from homeassistant.core import HomeAssistant, State
+from homeassistant.core import DOMAIN as HOMEASSISTANT_DOMAIN, HomeAssistant, State
 from homeassistant.setup import async_setup_component
 
 from .conftest import TEST_ENTITY_NAME, ReadResult
@@ -269,12 +274,12 @@ async def test_fan_service_turn(
 
     assert hass.states.get(ENTITY_ID).state == STATE_OFF
     await hass.services.async_call(
-        "fan", "turn_on", service_data={"entity_id": ENTITY_ID}
+        FAN_DOMAIN, SERVICE_TURN_ON, service_data={ATTR_ENTITY_ID: ENTITY_ID}
     )
     await hass.async_block_till_done()
     assert hass.states.get(ENTITY_ID).state == STATE_ON
     await hass.services.async_call(
-        "fan", "turn_off", service_data={"entity_id": ENTITY_ID}
+        FAN_DOMAIN, SERVICE_TURN_OFF, service_data={ATTR_ENTITY_ID: ENTITY_ID}
     )
     await hass.async_block_till_done()
     assert hass.states.get(ENTITY_ID).state == STATE_OFF
@@ -282,26 +287,26 @@ async def test_fan_service_turn(
     mock_modbus.read_holding_registers.return_value = ReadResult([0x01])
     assert hass.states.get(ENTITY_ID2).state == STATE_OFF
     await hass.services.async_call(
-        "fan", "turn_on", service_data={"entity_id": ENTITY_ID2}
+        FAN_DOMAIN, SERVICE_TURN_ON, service_data={ATTR_ENTITY_ID: ENTITY_ID2}
     )
     await hass.async_block_till_done()
     assert hass.states.get(ENTITY_ID2).state == STATE_ON
     mock_modbus.read_holding_registers.return_value = ReadResult([0x00])
     await hass.services.async_call(
-        "fan", "turn_off", service_data={"entity_id": ENTITY_ID2}
+        FAN_DOMAIN, SERVICE_TURN_OFF, service_data={ATTR_ENTITY_ID: ENTITY_ID2}
     )
     await hass.async_block_till_done()
     assert hass.states.get(ENTITY_ID2).state == STATE_OFF
 
     mock_modbus.write_register.side_effect = ModbusException("fail write_")
     await hass.services.async_call(
-        "fan", "turn_on", service_data={"entity_id": ENTITY_ID2}
+        FAN_DOMAIN, SERVICE_TURN_ON, service_data={ATTR_ENTITY_ID: ENTITY_ID2}
     )
     await hass.async_block_till_done()
     assert hass.states.get(ENTITY_ID2).state == STATE_UNAVAILABLE
     mock_modbus.write_coil.side_effect = ModbusException("fail write_")
     await hass.services.async_call(
-        "fan", "turn_off", service_data={"entity_id": ENTITY_ID}
+        FAN_DOMAIN, SERVICE_TURN_OFF, service_data={ATTR_ENTITY_ID: ENTITY_ID}
     )
     await hass.async_block_till_done()
     assert hass.states.get(ENTITY_ID).state == STATE_UNAVAILABLE
@@ -325,12 +330,18 @@ async def test_fan_service_turn(
 async def test_service_fan_update(hass: HomeAssistant, mock_modbus_ha) -> None:
     """Run test for service homeassistant.update_entity."""
     await hass.services.async_call(
-        "homeassistant", "update_entity", {"entity_id": ENTITY_ID}, blocking=True
+        HOMEASSISTANT_DOMAIN,
+        SERVICE_UPDATE_ENTITY,
+        {ATTR_ENTITY_ID: ENTITY_ID},
+        blocking=True,
     )
     assert hass.states.get(ENTITY_ID).state == STATE_OFF
     mock_modbus_ha.read_coils.return_value = ReadResult([0x01])
     await hass.services.async_call(
-        "homeassistant", "update_entity", {"entity_id": ENTITY_ID}, blocking=True
+        HOMEASSISTANT_DOMAIN,
+        SERVICE_UPDATE_ENTITY,
+        {ATTR_ENTITY_ID: ENTITY_ID},
+        blocking=True,
     )
     assert hass.states.get(ENTITY_ID).state == STATE_ON
 
@@ -343,7 +354,7 @@ async def test_no_discovery_info_fan(
     assert await async_setup_component(
         hass,
         FAN_DOMAIN,
-        {FAN_DOMAIN: {"platform": MODBUS_DOMAIN}},
+        {FAN_DOMAIN: {CONF_PLATFORM: MODBUS_DOMAIN}},
     )
     await hass.async_block_till_done()
     assert FAN_DOMAIN in hass.config.components
diff --git a/tests/components/modbus/test_light.py b/tests/components/modbus/test_light.py
index e74da085180e12dd720e54c67a1363abc0359192..745249ff866f3f447018f5dcf572565b5e034f83 100644
--- a/tests/components/modbus/test_light.py
+++ b/tests/components/modbus/test_light.py
@@ -3,6 +3,7 @@
 from pymodbus.exceptions import ModbusException
 import pytest
 
+from homeassistant.components.homeassistant import SERVICE_UPDATE_ENTITY
 from homeassistant.components.light import DOMAIN as LIGHT_DOMAIN
 from homeassistant.components.modbus.const import (
     CALL_TYPE_COIL,
@@ -18,18 +19,22 @@ from homeassistant.components.modbus.const import (
     MODBUS_DOMAIN,
 )
 from homeassistant.const import (
+    ATTR_ENTITY_ID,
     CONF_ADDRESS,
     CONF_COMMAND_OFF,
     CONF_COMMAND_ON,
     CONF_LIGHTS,
     CONF_NAME,
+    CONF_PLATFORM,
     CONF_SCAN_INTERVAL,
     CONF_SLAVE,
+    SERVICE_TURN_OFF,
+    SERVICE_TURN_ON,
     STATE_OFF,
     STATE_ON,
     STATE_UNAVAILABLE,
 )
-from homeassistant.core import HomeAssistant, State
+from homeassistant.core import DOMAIN as HOMEASSISTANT_DOMAIN, HomeAssistant, State
 from homeassistant.setup import async_setup_component
 
 from .conftest import TEST_ENTITY_NAME, ReadResult
@@ -269,12 +274,12 @@ async def test_light_service_turn(
 
     assert hass.states.get(ENTITY_ID).state == STATE_OFF
     await hass.services.async_call(
-        "light", "turn_on", service_data={"entity_id": ENTITY_ID}
+        LIGHT_DOMAIN, SERVICE_TURN_ON, service_data={ATTR_ENTITY_ID: ENTITY_ID}
     )
     await hass.async_block_till_done()
     assert hass.states.get(ENTITY_ID).state == STATE_ON
     await hass.services.async_call(
-        "light", "turn_off", service_data={"entity_id": ENTITY_ID}
+        LIGHT_DOMAIN, SERVICE_TURN_OFF, service_data={ATTR_ENTITY_ID: ENTITY_ID}
     )
     await hass.async_block_till_done()
     assert hass.states.get(ENTITY_ID).state == STATE_OFF
@@ -282,20 +287,20 @@ async def test_light_service_turn(
     mock_modbus.read_holding_registers.return_value = ReadResult([0x01])
     assert hass.states.get(ENTITY_ID2).state == STATE_OFF
     await hass.services.async_call(
-        "light", "turn_on", service_data={"entity_id": ENTITY_ID2}
+        LIGHT_DOMAIN, SERVICE_TURN_ON, service_data={ATTR_ENTITY_ID: ENTITY_ID2}
     )
     await hass.async_block_till_done()
     assert hass.states.get(ENTITY_ID2).state == STATE_ON
     mock_modbus.read_holding_registers.return_value = ReadResult([0x00])
     await hass.services.async_call(
-        "light", "turn_off", service_data={"entity_id": ENTITY_ID2}
+        LIGHT_DOMAIN, SERVICE_TURN_OFF, service_data={ATTR_ENTITY_ID: ENTITY_ID2}
     )
     await hass.async_block_till_done()
     assert hass.states.get(ENTITY_ID2).state == STATE_OFF
 
     mock_modbus.write_register.side_effect = ModbusException("fail write_")
     await hass.services.async_call(
-        "light", "turn_on", service_data={"entity_id": ENTITY_ID2}
+        LIGHT_DOMAIN, SERVICE_TURN_ON, service_data={ATTR_ENTITY_ID: ENTITY_ID2}
     )
     await hass.async_block_till_done()
     assert hass.states.get(ENTITY_ID2).state == STATE_UNAVAILABLE
@@ -319,12 +324,18 @@ async def test_light_service_turn(
 async def test_service_light_update(hass: HomeAssistant, mock_modbus_ha) -> None:
     """Run test for service homeassistant.update_entity."""
     await hass.services.async_call(
-        "homeassistant", "update_entity", {"entity_id": ENTITY_ID}, blocking=True
+        HOMEASSISTANT_DOMAIN,
+        SERVICE_UPDATE_ENTITY,
+        {ATTR_ENTITY_ID: ENTITY_ID},
+        blocking=True,
     )
     assert hass.states.get(ENTITY_ID).state == STATE_OFF
     mock_modbus_ha.read_coils.return_value = ReadResult([0x01])
     await hass.services.async_call(
-        "homeassistant", "update_entity", {"entity_id": ENTITY_ID}, blocking=True
+        HOMEASSISTANT_DOMAIN,
+        SERVICE_UPDATE_ENTITY,
+        {ATTR_ENTITY_ID: ENTITY_ID},
+        blocking=True,
     )
     assert hass.states.get(ENTITY_ID).state == STATE_ON
 
@@ -337,7 +348,7 @@ async def test_no_discovery_info_light(
     assert await async_setup_component(
         hass,
         LIGHT_DOMAIN,
-        {LIGHT_DOMAIN: {"platform": MODBUS_DOMAIN}},
+        {LIGHT_DOMAIN: {CONF_PLATFORM: MODBUS_DOMAIN}},
     )
     await hass.async_block_till_done()
     assert LIGHT_DOMAIN in hass.config.components
diff --git a/tests/components/modbus/test_sensor.py b/tests/components/modbus/test_sensor.py
index 87015fa634ced4ba47968656af867e80d08f3375..3e44e1aa56fdc85f14f18a659e2f9fd2c9c477b1 100644
--- a/tests/components/modbus/test_sensor.py
+++ b/tests/components/modbus/test_sensor.py
@@ -4,6 +4,7 @@ import struct
 
 import pytest
 
+from homeassistant.components.homeassistant import SERVICE_UPDATE_ENTITY
 from homeassistant.components.modbus.const import (
     CALL_TYPE_REGISTER_HOLDING,
     CALL_TYPE_REGISTER_INPUT,
@@ -32,11 +33,13 @@ from homeassistant.components.sensor import (
     SensorStateClass,
 )
 from homeassistant.const import (
+    ATTR_ENTITY_ID,
     CONF_ADDRESS,
     CONF_COUNT,
     CONF_DEVICE_CLASS,
     CONF_NAME,
     CONF_OFFSET,
+    CONF_PLATFORM,
     CONF_SCAN_INTERVAL,
     CONF_SENSORS,
     CONF_SLAVE,
@@ -45,7 +48,7 @@ from homeassistant.const import (
     STATE_UNAVAILABLE,
     STATE_UNKNOWN,
 )
-from homeassistant.core import HomeAssistant, State
+from homeassistant.core import DOMAIN as HOMEASSISTANT_DOMAIN, HomeAssistant, State
 from homeassistant.helpers import entity_registry as er
 from homeassistant.setup import async_setup_component
 
@@ -1395,12 +1398,18 @@ async def test_service_sensor_update(hass: HomeAssistant, mock_modbus_ha) -> Non
     """Run test for service homeassistant.update_entity."""
     mock_modbus_ha.read_input_registers.return_value = ReadResult([27])
     await hass.services.async_call(
-        "homeassistant", "update_entity", {"entity_id": ENTITY_ID}, blocking=True
+        HOMEASSISTANT_DOMAIN,
+        SERVICE_UPDATE_ENTITY,
+        {ATTR_ENTITY_ID: ENTITY_ID},
+        blocking=True,
     )
     assert hass.states.get(ENTITY_ID).state == "27"
     mock_modbus_ha.read_input_registers.return_value = ReadResult([32])
     await hass.services.async_call(
-        "homeassistant", "update_entity", {"entity_id": ENTITY_ID}, blocking=True
+        HOMEASSISTANT_DOMAIN,
+        SERVICE_UPDATE_ENTITY,
+        {ATTR_ENTITY_ID: ENTITY_ID},
+        blocking=True,
     )
     assert hass.states.get(ENTITY_ID).state == "32"
 
@@ -1413,7 +1422,7 @@ async def test_no_discovery_info_sensor(
     assert await async_setup_component(
         hass,
         SENSOR_DOMAIN,
-        {SENSOR_DOMAIN: {"platform": MODBUS_DOMAIN}},
+        {SENSOR_DOMAIN: {CONF_PLATFORM: MODBUS_DOMAIN}},
     )
     await hass.async_block_till_done()
     assert SENSOR_DOMAIN in hass.config.components
diff --git a/tests/components/modbus/test_switch.py b/tests/components/modbus/test_switch.py
index 999983a5e3083d286af19f94da8e17b9ac95e867..4e0ad0841eaf5b13950c552de772ac0baa2ad466 100644
--- a/tests/components/modbus/test_switch.py
+++ b/tests/components/modbus/test_switch.py
@@ -6,6 +6,7 @@ from unittest import mock
 from pymodbus.exceptions import ModbusException
 import pytest
 
+from homeassistant.components.homeassistant import SERVICE_UPDATE_ENTITY
 from homeassistant.components.modbus.const import (
     CALL_TYPE_COIL,
     CALL_TYPE_DISCRETE,
@@ -21,20 +22,24 @@ from homeassistant.components.modbus.const import (
 )
 from homeassistant.components.switch import DOMAIN as SWITCH_DOMAIN
 from homeassistant.const import (
+    ATTR_ENTITY_ID,
     CONF_ADDRESS,
     CONF_COMMAND_OFF,
     CONF_COMMAND_ON,
     CONF_DELAY,
     CONF_DEVICE_CLASS,
     CONF_NAME,
+    CONF_PLATFORM,
     CONF_SCAN_INTERVAL,
     CONF_SLAVE,
     CONF_SWITCHES,
+    SERVICE_TURN_OFF,
+    SERVICE_TURN_ON,
     STATE_OFF,
     STATE_ON,
     STATE_UNAVAILABLE,
 )
-from homeassistant.core import HomeAssistant, State
+from homeassistant.core import DOMAIN as HOMEASSISTANT_DOMAIN, HomeAssistant, State
 from homeassistant.setup import async_setup_component
 import homeassistant.util.dt as dt_util
 
@@ -75,7 +80,7 @@ ENTITY_ID3 = f"{ENTITY_ID}_3"
                     CONF_SLAVE: 1,
                     CONF_COMMAND_OFF: 0x00,
                     CONF_COMMAND_ON: 0x01,
-                    CONF_DEVICE_CLASS: "switch",
+                    CONF_DEVICE_CLASS: SWITCH_DOMAIN,
                     CONF_VERIFY: {
                         CONF_INPUT_TYPE: CALL_TYPE_REGISTER_HOLDING,
                         CONF_ADDRESS: 1235,
@@ -93,7 +98,7 @@ ENTITY_ID3 = f"{ENTITY_ID}_3"
                     CONF_DEVICE_ADDRESS: 1,
                     CONF_COMMAND_OFF: 0x00,
                     CONF_COMMAND_ON: 0x01,
-                    CONF_DEVICE_CLASS: "switch",
+                    CONF_DEVICE_CLASS: SWITCH_DOMAIN,
                     CONF_VERIFY: {
                         CONF_INPUT_TYPE: CALL_TYPE_REGISTER_HOLDING,
                         CONF_ADDRESS: 1235,
@@ -111,7 +116,7 @@ ENTITY_ID3 = f"{ENTITY_ID}_3"
                     CONF_SLAVE: 1,
                     CONF_COMMAND_OFF: 0x00,
                     CONF_COMMAND_ON: 0x01,
-                    CONF_DEVICE_CLASS: "switch",
+                    CONF_DEVICE_CLASS: SWITCH_DOMAIN,
                     CONF_VERIFY: {
                         CONF_INPUT_TYPE: CALL_TYPE_REGISTER_INPUT,
                         CONF_ADDRESS: 1235,
@@ -130,7 +135,7 @@ ENTITY_ID3 = f"{ENTITY_ID}_3"
                     CONF_SLAVE: 1,
                     CONF_COMMAND_OFF: 0x00,
                     CONF_COMMAND_ON: 0x01,
-                    CONF_DEVICE_CLASS: "switch",
+                    CONF_DEVICE_CLASS: SWITCH_DOMAIN,
                     CONF_VERIFY: {
                         CONF_INPUT_TYPE: CALL_TYPE_DISCRETE,
                         CONF_ADDRESS: 1235,
@@ -148,7 +153,7 @@ ENTITY_ID3 = f"{ENTITY_ID}_3"
                     CONF_SLAVE: 1,
                     CONF_COMMAND_OFF: 0x00,
                     CONF_COMMAND_ON: 0x01,
-                    CONF_DEVICE_CLASS: "switch",
+                    CONF_DEVICE_CLASS: SWITCH_DOMAIN,
                     CONF_SCAN_INTERVAL: 0,
                     CONF_VERIFY: None,
                 }
@@ -162,7 +167,7 @@ ENTITY_ID3 = f"{ENTITY_ID}_3"
                     CONF_DEVICE_ADDRESS: 10,
                     CONF_COMMAND_OFF: 0x00,
                     CONF_COMMAND_ON: 0x01,
-                    CONF_DEVICE_CLASS: "switch",
+                    CONF_DEVICE_CLASS: SWITCH_DOMAIN,
                     CONF_VERIFY: {
                         CONF_INPUT_TYPE: CALL_TYPE_REGISTER_HOLDING,
                         CONF_ADDRESS: 1235,
@@ -180,7 +185,7 @@ ENTITY_ID3 = f"{ENTITY_ID}_3"
                     CONF_DEVICE_ADDRESS: 10,
                     CONF_COMMAND_OFF: 0x00,
                     CONF_COMMAND_ON: 0x01,
-                    CONF_DEVICE_CLASS: "switch",
+                    CONF_DEVICE_CLASS: SWITCH_DOMAIN,
                     CONF_VERIFY: {
                         CONF_INPUT_TYPE: CALL_TYPE_REGISTER_HOLDING,
                         CONF_ADDRESS: 1235,
@@ -339,12 +344,12 @@ async def test_switch_service_turn(
 
     assert hass.states.get(ENTITY_ID).state == STATE_OFF
     await hass.services.async_call(
-        "switch", "turn_on", service_data={"entity_id": ENTITY_ID}
+        SWITCH_DOMAIN, SERVICE_TURN_ON, service_data={ATTR_ENTITY_ID: ENTITY_ID}
     )
     await hass.async_block_till_done()
     assert hass.states.get(ENTITY_ID).state == STATE_ON
     await hass.services.async_call(
-        "switch", "turn_off", service_data={"entity_id": ENTITY_ID}
+        SWITCH_DOMAIN, SERVICE_TURN_OFF, service_data={ATTR_ENTITY_ID: ENTITY_ID}
     )
     await hass.async_block_till_done()
     assert hass.states.get(ENTITY_ID).state == STATE_OFF
@@ -352,45 +357,45 @@ async def test_switch_service_turn(
     mock_modbus.read_holding_registers.return_value = ReadResult([0x01])
     assert hass.states.get(ENTITY_ID2).state == STATE_OFF
     await hass.services.async_call(
-        "switch", "turn_on", service_data={"entity_id": ENTITY_ID2}
+        SWITCH_DOMAIN, SERVICE_TURN_ON, service_data={ATTR_ENTITY_ID: ENTITY_ID2}
     )
     await hass.async_block_till_done()
     assert hass.states.get(ENTITY_ID2).state == STATE_ON
     mock_modbus.read_holding_registers.return_value = ReadResult([0x00])
     await hass.services.async_call(
-        "switch", "turn_off", service_data={"entity_id": ENTITY_ID2}
+        SWITCH_DOMAIN, SERVICE_TURN_OFF, service_data={ATTR_ENTITY_ID: ENTITY_ID2}
     )
     await hass.async_block_till_done()
     assert hass.states.get(ENTITY_ID2).state == STATE_OFF
     mock_modbus.read_holding_registers.return_value = ReadResult([0x03])
     assert hass.states.get(ENTITY_ID3).state == STATE_OFF
     await hass.services.async_call(
-        "switch", "turn_on", service_data={"entity_id": ENTITY_ID3}
+        SWITCH_DOMAIN, SERVICE_TURN_ON, service_data={ATTR_ENTITY_ID: ENTITY_ID3}
     )
     await hass.async_block_till_done()
     assert hass.states.get(ENTITY_ID3).state == STATE_ON
     mock_modbus.read_holding_registers.return_value = ReadResult([0x00])
     await hass.services.async_call(
-        "switch", "turn_off", service_data={"entity_id": ENTITY_ID3}
+        SWITCH_DOMAIN, SERVICE_TURN_OFF, service_data={ATTR_ENTITY_ID: ENTITY_ID3}
     )
     await hass.async_block_till_done()
     assert hass.states.get(ENTITY_ID3).state == STATE_OFF
 
     mock_modbus.write_register.side_effect = ModbusException("fail write_")
     await hass.services.async_call(
-        "switch", "turn_on", service_data={"entity_id": ENTITY_ID2}
+        SWITCH_DOMAIN, SERVICE_TURN_ON, service_data={ATTR_ENTITY_ID: ENTITY_ID2}
     )
     await hass.async_block_till_done()
     assert hass.states.get(ENTITY_ID2).state == STATE_UNAVAILABLE
     mock_modbus.write_coil.side_effect = ModbusException("fail write_")
     await hass.services.async_call(
-        "switch", "turn_off", service_data={"entity_id": ENTITY_ID}
+        SWITCH_DOMAIN, SERVICE_TURN_OFF, service_data={ATTR_ENTITY_ID: ENTITY_ID}
     )
     await hass.async_block_till_done()
     assert hass.states.get(ENTITY_ID).state == STATE_UNAVAILABLE
     mock_modbus.write_register.side_effect = ModbusException("fail write_")
     await hass.services.async_call(
-        "switch", "turn_on", service_data={"entity_id": ENTITY_ID3}
+        SWITCH_DOMAIN, SERVICE_TURN_ON, service_data={ATTR_ENTITY_ID: ENTITY_ID3}
     )
     await hass.async_block_till_done()
     assert hass.states.get(ENTITY_ID3).state == STATE_UNAVAILABLE
@@ -434,12 +439,18 @@ async def test_switch_service_turn(
 async def test_service_switch_update(hass: HomeAssistant, mock_modbus_ha) -> None:
     """Run test for service homeassistant.update_entity."""
     await hass.services.async_call(
-        "homeassistant", "update_entity", {"entity_id": ENTITY_ID}, blocking=True
+        HOMEASSISTANT_DOMAIN,
+        SERVICE_UPDATE_ENTITY,
+        {ATTR_ENTITY_ID: ENTITY_ID},
+        blocking=True,
     )
     assert hass.states.get(ENTITY_ID).state == STATE_OFF
     mock_modbus_ha.read_coils.return_value = ReadResult([0x01])
     await hass.services.async_call(
-        "homeassistant", "update_entity", {"entity_id": ENTITY_ID}, blocking=True
+        HOMEASSISTANT_DOMAIN,
+        SERVICE_UPDATE_ENTITY,
+        {ATTR_ENTITY_ID: ENTITY_ID},
+        blocking=True,
     )
     assert hass.states.get(ENTITY_ID).state == STATE_ON
 
@@ -467,7 +478,7 @@ async def test_delay_switch(hass: HomeAssistant, mock_modbus) -> None:
     mock_modbus.read_holding_registers.return_value = ReadResult([0x01])
     now = dt_util.utcnow()
     await hass.services.async_call(
-        "switch", "turn_on", service_data={"entity_id": ENTITY_ID}
+        SWITCH_DOMAIN, SERVICE_TURN_ON, service_data={ATTR_ENTITY_ID: ENTITY_ID}
     )
     await hass.async_block_till_done()
     assert hass.states.get(ENTITY_ID).state == STATE_OFF
@@ -486,7 +497,7 @@ async def test_no_discovery_info_switch(
     assert await async_setup_component(
         hass,
         SWITCH_DOMAIN,
-        {SWITCH_DOMAIN: {"platform": MODBUS_DOMAIN}},
+        {SWITCH_DOMAIN: {CONF_PLATFORM: MODBUS_DOMAIN}},
     )
     await hass.async_block_till_done()
     assert SWITCH_DOMAIN in hass.config.components