new_contents: from unittest import TestCase
  
  from mock import patch
  
  from configuration_py.configuration_py import load
  
  
  class TestGetAvailableConfigEnvList(TestCase):
      @patch('configuration_py.configuration_py._normalize_environment_label', return_value={'test': ''})
      @patch('configuration_py.configuration_py._get_available_config_environments_list')
      @patch('configuration_py.configuration_py._load_yaml_config_by_name')
      def test_should_call_load_yaml_config_by_name_with_correct_parameters(self, load_mock, available_mock, normalize_mock):
          config_name = 'test'
          config_folder = './config'
          load(config_name, config_name)
          load_mock.assert_called_once_with(config_name, config_folder)
  
subject: Add more unit tests