def test_parseField_value_is_not_none(self):
     value = RichTextValue(u'foo')
     diff = RichTextDiff(DummyType(value), DummyType(value), 'body')
     self.assertEqual(diff._parseField(value), [u'foo'])
 def test_parseField_value_is_none(self):
     value = None
     diff = RichTextDiff(DummyType(value), DummyType(value), 'body')
     self.assertEqual(diff._parseField(value), [])