new_contents: from mock import Mock
  
  from ceph_deploy import install
  
  
  class TestSanitizeArgs(object):
  
      def setup(self):
          self.args = Mock()
          # set the default behavior we set in cli.py
          self.args.default_release = False
  
      def test_args_release_not_specified(self):
          self.args.release = None
          result = install.sanitize_args(self.args)
          # XXX
          # we should get `args.release` to be the latest release
          # but we don't want to be updating this test every single
          # time there is a new default value, and we can't programatically
          # change that. Future improvement: make the default release a
          # variable in `ceph_deploy/__init__.py`
          assert result.default_release is True
  
subject: create a test for the args sanitizer function