new_contents: # All Rights Reserved.
  #
  #    Licensed 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 mock
  
  from rally.common import version
  from tests.unit import test
  
  
  class ModuleTestCase(test.TestCase):
  
      VERSION_REGEX = "^\d+\.\d+\.\d+(~dev\d+)?$"
  
      def test_version_info(self):
          version_str = version.version_info.semantic_version().debian_string()
          self.assertRegexpMatches(version_str, self.VERSION_REGEX)
  
      @mock.patch("rally.common.version.version_info")
      def test_version_string(self, mock_version_info):
          mock_sv = mock.Mock()
          mock_sv.debian_string.return_value = "foo_version"
          mock_version_info.semantic_version.return_value = mock_sv
          self.assertEqual("foo_version", version.version_string())
  
subject: Add missed tests/unit/common/test_version.py