diff --git a/tests/components/nest/test_config_flow_sdm.py b/tests/components/nest/test_config_flow_sdm.py
index 2b7ac71d44c..75ce8bcf939 100644
--- a/tests/components/nest/test_config_flow_sdm.py
+++ b/tests/components/nest/test_config_flow_sdm.py
@@ -8,6 +8,7 @@ from homeassistant import config_entries, setup
 from homeassistant.components.nest.const import DOMAIN, OAUTH2_AUTHORIZE, OAUTH2_TOKEN
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import CONF_CLIENT_ID, CONF_CLIENT_SECRET
+from homeassistant.core import HomeAssistant
 from homeassistant.helpers import config_entry_oauth2_flow
 
 from .common import MockConfigEntry
@@ -34,13 +35,24 @@ WEB_REDIRECT_URL = "https://example.com/auth/external/callback"
 APP_REDIRECT_URL = "urn:ietf:wg:oauth:2.0:oob"
 
 
-def get_config_entry(hass):
+def get_config_entry(hass: HomeAssistant) -> ConfigEntry:
     """Return a single config entry."""
     entries = hass.config_entries.async_entries(DOMAIN)
     assert len(entries) == 1
     return entries[0]
 
 
+def create_config_entry(hass: HomeAssistant, data: dict) -> ConfigEntry:
+    """Create the ConfigEntry."""
+    entry = MockConfigEntry(
+        domain=DOMAIN,
+        data=data,
+        unique_id=DOMAIN,
+    )
+    entry.add_to_hass(hass)
+    return entry
+
+
 class OAuthFixture:
     """Simulate the oauth flow used by the config flow."""
 
@@ -165,9 +177,9 @@ async def test_web_reauth(hass, oauth):
 
     assert await setup.async_setup_component(hass, DOMAIN, CONFIG)
 
-    old_entry = MockConfigEntry(
-        domain=DOMAIN,
-        data={
+    old_entry = create_config_entry(
+        hass,
+        {
             "auth_implementation": WEB_AUTH_DOMAIN,
             "token": {
                 # Verify this is replaced at end of the test
@@ -175,9 +187,7 @@ async def test_web_reauth(hass, oauth):
             },
             "sdm": {},
         },
-        unique_id=DOMAIN,
     )
-    old_entry.add_to_hass(hass)
 
     entry = get_config_entry(hass)
     assert entry.data["token"] == {
@@ -211,10 +221,7 @@ async def test_web_reauth(hass, oauth):
 
 async def test_single_config_entry(hass):
     """Test that only a single config entry is allowed."""
-    old_entry = MockConfigEntry(
-        domain=DOMAIN, data={"auth_implementation": WEB_AUTH_DOMAIN, "sdm": {}}
-    )
-    old_entry.add_to_hass(hass)
+    create_config_entry(hass, {"auth_implementation": WEB_AUTH_DOMAIN, "sdm": {}})
 
     assert await setup.async_setup_component(hass, DOMAIN, CONFIG)
 
@@ -299,9 +306,9 @@ async def test_app_reauth(hass, oauth):
 
     assert await setup.async_setup_component(hass, DOMAIN, CONFIG)
 
-    old_entry = MockConfigEntry(
-        domain=DOMAIN,
-        data={
+    old_entry = create_config_entry(
+        hass,
+        {
             "auth_implementation": APP_AUTH_DOMAIN,
             "token": {
                 # Verify this is replaced at end of the test
@@ -309,9 +316,7 @@ async def test_app_reauth(hass, oauth):
             },
             "sdm": {},
         },
-        unique_id=DOMAIN,
     )
-    old_entry.add_to_hass(hass)
 
     entry = get_config_entry(hass)
     assert entry.data["token"] == {