test: Add missing unit tests

tests/utils/postgres/__init__.py

@@ -0,0 +1 @@
+"""Tests for utils.postgres module."""

tests/utils/postgres/connector_test.py

@@ -0,0 +1,14 @@
+from unittest.mock import patch
+
+from aki_prj23_transparenzregister.config.config_template import PostgreConnectionString
+from aki_prj23_transparenzregister.utils.postgres.connector import get_engine
+
+
+def test_get_engine():
+    conn_args = PostgreConnectionString("", "", "", "", 42)
+    with patch(
+        "aki_prj23_transparenzregister.utils.postgres.connector.create_engine"
+    ) as mock_create_engine:
+        result = "someThing"
+        mock_create_engine.return_value = result
+        assert get_engine(conn_args) == result