def test_username_regex_with_valid_string(self):
try:
f = UsernameField(max_length=20)
f.run_validators('batman')
is_valid = True
except ValidationError:
is_valid = False
self.assertTrue(is_valid)
def test_lower_mixin_abc(self):
f = UsernameField()
self.assertEqual('abc', f.to_python('ABC'))
def test_lower_mixin_empty(self):
f = UsernameField()
self.assertEqual('', f.to_python(''))
def test_lower_mixin_none(self):
f = UsernameField()
self.assertIsNone(f.to_python(None))
