def METHOD_NAME(self):
    # does not raise
    ContentType(name=self.VALID_NAME).full_clean()
    with pytest.raises(ValidationError) as excinfo:
        ContentType().full_clean()
    assert excinfo.value.message_dict == {
        'name': ['This field cannot be blank.']
    }
    assert excinfo.value.message_dict == {
        "name": ["This field cannot be blank."]
    }