new_contents: # Licensed to the StackStorm, Inc ('StackStorm') under one or more
  # contributor license agreements.  See the NOTICE file distributed with
  # this work for additional information regarding copyright ownership.
  # The ASF licenses this file to You under the Apache License, Version 2.0
  # (the "License"); you may not use this file except in compliance with
  # the License.  You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  import unittest2
  
  from st2common.models.db.pack import PackDB
  from st2common.util.pack import get_pack_common_libs_path
  
  
  class PackUtilsTestCase(unittest2.TestCase):
  
      def test_get_pack_common_libs_path(self):
          pack_model_args = {
              'name': 'Yolo CI',
              'ref': 'yolo_ci',
              'description': 'YOLO CI pack',
              'version': '0.1.0',
              'author': 'Volkswagen',
              'path': '/opt/stackstorm/packs/yolo_ci/'
          }
          pack_db = PackDB(**pack_model_args)
          lib_path = get_pack_common_libs_path(pack_db)
          self.assertEqual('/opt/stackstorm/packs/yolo_ci/lib', lib_path)
  
      def test_get_pack_common_libs_path_no_path_in_pack_db(self):
          pack_model_args = {
              'name': 'Yolo CI',
              'ref': 'yolo_ci',
              'description': 'YOLO CI pack',
              'version': '0.1.0',
              'author': 'Volkswagen'
          }
          pack_db = PackDB(**pack_model_args)
          lib_path = get_pack_common_libs_path(pack_db)
          self.assertEqual(None, lib_path)
  
subject: Add tests for get_pack_common_libs_path