def test_change_image_size_when_already_small(self):
input_bytes = _given_test_image(size=ImageSize.small)
output_bytes = email_parser._change_image_size(input_bytes)
self.assertEqual(input_bytes, output_bytes, self.error_message)
def test_change_image_size(self):
input_bytes = _given_test_image(size=ImageSize.large)
output_bytes = email_parser._change_image_size(input_bytes)
self.assertNotEqual(input_bytes, output_bytes, self.error_message)