def test_remap(self):
dic = {
'TEST': 'test', 'another_field': 'content', 'third_field': 'text'}
transformer = Transformer(dic)
transformer.mappings = {'test': 'TEST', 'field': 'another_field'}
self.assertTrue(transformer.is_valid())
res = transformer.cleaned_data
self.assertEqual(res['test'], 'test')
self.assertEqual(res['field'], 'content')
self.assertEqual(res['third_field'], 'text')
self.assertNotIn('TEST', res)
self.assertNotIn('another_field', res)
