new_contents: import fudge
  from bottling.factory import BottleSingletonAppLoader
  
  
  class describe_init:
  
      def it_initializes_with_given_options(self):
          ref = 'my_module:app'
          kind = None
          
          loader = BottleSingletonAppLoader(ref, kind)
  
          assert loader.ref == ref
          assert loader.kind == None
  
  
  class describe_load:
      
      @fudge.patch('bottle.load_app')
      def given_no_config_or_runtime_dependencies(self, bottle_load_app):
          app_ref = 'my_module:app'
          (bottle_load_app
              .expects_call()
              .with_args(app_ref)
              .returns({}))
          loader = BottleSingletonAppLoader(ref=app_ref)
  
          app = loader.load()
  
          assert app is not None
  
subject: Add loader for singleton apps