text: from django.test import TestCase
  
  from cradmin_legacy.renderable import AbstractRenderable
  
  
  class MinimalRenderable(AbstractRenderable):
      template_name = 'cradmin_viewhelpers_testapp/listbuilder/minimal-renderable.django.html'
  
  
  class TestAbstractRenderable(TestCase):
      def test_get_template_name_no_template_name(self):
          with self.assertRaises(NotImplementedError):
              AbstractRenderable().get_template_name()
  
      def test_get_template_name_has_template_name(self):
          MinimalRenderable().get_template_name()  # NotImplementedError not raised
  
      def test_get_context_data(self):
          renderable = AbstractRenderable()
          self.assertEqual({'me': renderable}, renderable.get_context_data())
  
      def test_render(self):
          self.assertEqual('Test', MinimalRenderable().render().strip())
  