              {'url': 'http://testserver/manytomanytarget/2/', 'name': 'target-2', 'sources': ['http://testserver/manytomanysource/2/', 'http://testserver/manytomanysource/3/']},
              {'url': 'http://testserver/manytomanytarget/3/', 'name': 'target-3', 'sources': ['http://testserver/manytomanysource/3/']}
  
          ]
          self.assertEqual(serializer.data, expected)
  
      def test_many_to_many_create(self):
          data = {'url': 'http://testserver/manytomanysource/4/', 'name': 'source-4', 'targets': ['http://testserver/manytomanytarget/1/', 'http://testserver/manytomanytarget/3/']}
          serializer = ManyToManySourceSerializer(data=data, context={'request': request})
          self.assertTrue(serializer.is_valid())
 
</s> remove             self.assertEqual(serializer.data, expected)
 </s> add             assert serializer.data == expected </s> remove         self.assertEqual(serializer.data, expected)
 </s> add         assert serializer.data == expected </s> remove         self.assertTrue(serializer.is_valid())
 </s> add         assert serializer.is_valid() </s> remove         self.assertEqual(serializer.data, expected)
 </s> add         assert serializer.data == expected </s> remove         self.assertEqual(serializer.data, expected)
 </s> add         assert serializer.data == expected
        assert serializer.data == expected
              {'url': 'http://testserver/manytomanytarget/2/', 'name': 'target-2', 'sources': ['http://testserver/manytomanysource/2/', 'http://testserver/manytomanysource/3/']},
              {'url': 'http://testserver/manytomanytarget/3/', 'name': 'target-3', 'sources': ['http://testserver/manytomanysource/3/']}
  
          ]
        assert serializer.data == expected
  
      def test_many_to_many_create(self):
          data = {'url': 'http://testserver/manytomanysource/4/', 'name': 'source-4', 'targets': ['http://testserver/manytomanytarget/1/', 'http://testserver/manytomanytarget/3/']}
          serializer = ManyToManySourceSerializer(data=data, context={'request': request})
          self.assertTrue(serializer.is_valid())
keep keep keep keep replace keep keep keep keep keep
 converted test asserts of hyperlin relations to pytest 
tests/test_relations_hyperlink.py