text: from unittest import TestCase
  from contentful_management.entry_resource_proxy import EntryResourceProxy
  from .test_helper import CLIENT, PLAYGROUND_SPACE
  
  
  class EntryResourceProxyTest(TestCase):
      def test_resource_proxy_must_be_implemented(self):
          with self.assertRaises(Exception):
              EntryResourceProxy(CLIENT, PLAYGROUND_SPACE, 'foo', 'master')
  
  