[tests] Add test for creating missing file and parent dirs from conf_path() (#39)

Author: gacarrillor

pgserviceparser/__init__.py

@@ -9,7 +9,7 @@
 from .exceptions import ServiceFileNotFound, ServiceNotFound
 
 
-def conf_path(create_if_missing: bool = False) -> Path:
+def conf_path(create_if_missing: Optional[bool] = False) -> Path:
     """Returns the path found for the pg_service.conf on the system as string.
 
     Args:

test/test_lib.py

@@ -123,6 +123,25 @@ def test_remove_service(self):
         self.assertIn("service_tmp", service_names())
         remove_service("service_tmp")
 
+    def test_missing_file(self):
+        another_service_file_path = PGSERVICEPARSER_SRC_PATH / "test" / "data" / "new_folder" / "pgservice.conf"
+        os.environ["PGSERVICEFILE"] = str(another_service_file_path)
+
+        self.assertEqual(another_service_file_path, conf_path())
+        self.assertFalse(another_service_file_path.exists())
+        self.assertFalse(another_service_file_path.parent.exists())
+
+        self.assertEqual(another_service_file_path, conf_path(create_if_missing=True))
+        self.assertTrue(another_service_file_path.exists())
+        self.assertTrue(another_service_file_path.parent.exists())
+
+        os.environ["PGSERVICEFILE"] = str(self.service_file_path)
+
+    def tearDown(self):
+        new_folder_path = self.service_file_path.parent / "new_folder"
+        if new_folder_path.exists():
+            shutil.rmtree(new_folder_path)
+
 
 if __name__ == "__main__":
     unittest.main()