def test_converting_to_python_rejects_non_byte_string(self):
example = factory.make_string()
validator = config.ByteString()
error = self.assertRaises(formencode.Invalid, validator.to_python,
example)
self.assertThat(
str(error),
Equals("The input must be a byte string (not a str: %r)" %
example))
def test_empty_value(self):
validator = config.ByteString()
self.assertThat(validator.to_python(None), Equals(b""))
def test_converting_to_python_accepts_byte_string(self):
example = factory.make_bytes()
validator = config.ByteString()
self.assertThat(validator.to_python(example), Equals(example))
