diff --git a/exasol/ds/sandbox/runtime/ansible/roles/entrypoint/files/entrypoint.py b/exasol/ds/sandbox/runtime/ansible/roles/entrypoint/files/entrypoint.py
index e30a2924..cc3052bb 100644
--- a/exasol/ds/sandbox/runtime/ansible/roles/entrypoint/files/entrypoint.py
+++ b/exasol/ds/sandbox/runtime/ansible/roles/entrypoint/files/entrypoint.py
@@ -204,8 +204,8 @@ def __repr__(self):
 
 
 class FileInspector:
-    def __init__(self, path: str):
-        self.path = path
+    def __init__(self, path: Path):
+        self._path = path
         self._stat = None
 
     @property
@@ -220,7 +220,7 @@ def group_id(self) -> int:
 
     def is_group_accessible(self) -> bool:
         if not os.path.exists(self.path):
-            _logger.debug(f"No file {self.path}")
+            _logger.debug(f"File not found {self.path}")
             return False
         permissions = stat.filemode(self.stat.st_mode)
         if permissions[4:6] == "rw":
@@ -238,10 +238,10 @@ class GroupAccess:
     other group is expected to exist already and user to be added to it.
     """
     def __init__(self, user: str, group: Group):
-        self.user = user
-        self.group = group
+        self._user = user
+        self._group = group
 
-    def _find_group(self, id: int) -> str:
+    def _find_group_name(self, id: int) -> str:
         try:
             return grp.getgrgid(id).gr_name
         except KeyError:
diff --git a/test/integration/test_create_dss_docker_image.py b/test/integration/test_create_dss_docker_image.py
index 9c72d683..fdc96e45 100644
--- a/test/integration/test_create_dss_docker_image.py
+++ b/test/integration/test_create_dss_docker_image.py
@@ -109,7 +109,7 @@ def request_with_retry(url: str) -> requests.Response:
     assert response.status_code == 200
 
 
-def test_install_notebook_connector(dss_docker_container):
+def test_import_notebook_connector(dss_docker_container):
     container = dss_docker_container
     command = ('/home/jupyter/jupyterenv/bin/python'
                ' -c "import exasol.nb_connector.secret_store"')
@@ -147,7 +147,7 @@ def test_docker_socket_access(dss_docker_container):
 
 
 @pytest.fixture
-def socket_on_host(tmp_path):
+def fake_docker_socket_on_host(tmp_path):
     socket = tmp_path / "socket.txt"
     socket.touch()
     socket.chmod(0o660)