🧪 Add tests for api_tokens edge cases to improve coverage

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>

tests/test_api_tokens.py

@@ -101,6 +101,42 @@ def _cleanup(app):
     app.dependency_overrides.clear()
 
 
+# ---------------------------------------------------------------------------
+# Tests – Auth Helper
+# ---------------------------------------------------------------------------
+
+class TestGetOwnerId:
+    """Tests for the _get_owner_id dependency helper."""
+
+    @pytest.mark.unit
+    def test_get_owner_id_unauthenticated(self):
+        """_get_owner_id should raise a 401 if the user is not authenticated."""
+        from unittest.mock import MagicMock, patch
+
+        from fastapi import HTTPException
+
+        from app.api.api_tokens import _get_owner_id
+
+        mock_request = MagicMock()
+        with patch("app.api.api_tokens.get_current_owner_id", return_value=None):
+            with pytest.raises(HTTPException) as exc_info:
+                _get_owner_id(mock_request)
+            assert exc_info.value.status_code == 401
+            assert exc_info.value.detail == "Not authenticated"
+
+    @pytest.mark.unit
+    def test_get_owner_id_authenticated(self):
+        """_get_owner_id should return owner_id if user is authenticated."""
+        from unittest.mock import MagicMock, patch
+
+        from app.api.api_tokens import _get_owner_id
+
+        mock_request = MagicMock()
+        with patch("app.api.api_tokens.get_current_owner_id", return_value="owner123"):
+            owner_id = _get_owner_id(mock_request)
+            assert owner_id == "owner123"
+
+
 # ---------------------------------------------------------------------------
 # Tests – Token CRUD
 # ---------------------------------------------------------------------------
@@ -157,6 +193,48 @@ class TestTokenCreate:
         finally:
             _cleanup(app)
 
+    @pytest.mark.unit
+    def test_create_token_database_error(self, tok_engine, tok_session):
+        """Creating a token should rollback and raise 500 if database commit fails."""
+        from unittest.mock import patch
+
+        from sqlalchemy.orm import Session as SASession
+
+        from app.main import app
+
+        client = _make_client(tok_engine)
+        try:
+            # Wrap commit: flush first so changes are staged in the transaction,
+            # then raise to simulate a commit failure after data has been written.
+            def _fail_after_flush(self):
+                self.flush()  # stage changes inside the open transaction
+                raise Exception("DB Failure")
+
+            # Spy on rollback so we can assert it is called.
+            rollback_called = False
+            real_rollback = SASession.rollback
+
+            def _spy_rollback(self):
+                nonlocal rollback_called
+                rollback_called = True
+                real_rollback(self)
+
+            with (
+                patch.object(SASession, "commit", _fail_after_flush),
+                patch.object(SASession, "rollback", _spy_rollback),
+            ):
+                resp = client.post("/api/api-tokens/", json={"name": "DB Error Create Test"})
+                assert resp.status_code == 500
+
+            # rollback() must have been called to undo the flushed changes.
+            assert rollback_called, "db.rollback() was not called after commit failure in create_token"
+
+            # After rollback the token must not exist in the database.
+            db_token = tok_session.query(ApiToken).filter(ApiToken.name == "DB Error Create Test").first()
+            assert db_token is None
+        finally:
+            _cleanup(app)
+
 
 class TestTokenList:
     """Tests for GET /api/api-tokens/."""