diff --git a/tests/conftest.py b/tests/conftest.py
index b14523e065c..c76e561dd3b 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -11,6 +11,7 @@ import gc
 import itertools
 import logging
 import os
+import pathlib
 import reprlib
 from shutil import rmtree
 import sqlite3
@@ -49,7 +50,7 @@ from . import patch_recorder
 # Setup patching of dt_util time functions before any other Home Assistant imports
 from . import patch_time  # noqa: F401, isort:skip
 
-from homeassistant import core as ha, loader, runner
+from homeassistant import components, core as ha, loader, runner
 from homeassistant.auth.const import GROUP_ID_ADMIN, GROUP_ID_READ_ONLY
 from homeassistant.auth.models import Credentials
 from homeassistant.auth.providers import homeassistant
@@ -1260,15 +1261,17 @@ def evict_faked_translations(translations_once) -> Generator[_patch]:
     ) as mock_component_strings:
         yield
     cache: _TranslationsCacheData = translations_once.kwargs["return_value"]
+    component_paths = components.__path__
+
     for call in mock_component_strings.mock_calls:
         integrations: dict[str, loader.Integration] = call.args[3]
         for domain, integration in integrations.items():
-            if str(integration.file_path).endswith(
-                f"homeassistant/components/{domain}"
+            if any(
+                pathlib.Path(f"{component_path}/{domain}") == integration.file_path
+                for component_path in component_paths
             ):
                 continue
             cache.loaded["en"].discard(domain)
-            cache.cache["en"].pop(domain, None)
 
 
 @pytest.fixture
diff --git a/tests/test_test_fixtures.py b/tests/test_test_fixtures.py
index 78f66ceb549..3a25589c913 100644
--- a/tests/test_test_fixtures.py
+++ b/tests/test_test_fixtures.py
@@ -1,6 +1,7 @@
 """Test test fixture configuration."""
 
 from http import HTTPStatus
+import pathlib
 import socket
 
 from aiohttp import web
@@ -11,6 +12,7 @@ from homeassistant.components.http import HomeAssistantView
 from homeassistant.core import HomeAssistant, async_get_hass
 from homeassistant.setup import async_setup_component
 
+from .common import MockModule, mock_integration
 from .typing import ClientSessionGenerator
 
 
@@ -70,3 +72,12 @@ async def test_aiohttp_client_frozen_router_view(
     assert response.status == HTTPStatus.OK
     result = await response.json()
     assert result["test"] is True
+
+
+async def test_evict_faked_translations_assumptions(hass: HomeAssistant) -> None:
+    """Test assumptions made when detecting translations for mocked integrations.
+
+    If this test fails, the evict_faked_translations may need to be updated.
+    """
+    integration = mock_integration(hass, MockModule("test"), built_in=True)
+    assert integration.file_path == pathlib.Path("")