def test_merge_append(self):

        schema = {'mergeStrategy': 'objectMerge',
                  'properties': {
                      'a': {'mergeStrategy': 'append'}
                  }}

        base = None
        base = jsonmerge.merge(base, {'a': ["a"]}, schema)
        base = jsonmerge.merge(base, {'a': ["b"], 'b': 'c'}, schema)

        self.assertEqual(base, {'a': ["a", "b"], 'b': 'c'})