spaCy/spacy/tests/test_errors.py

from inspect import isclass

import pytest

from spacy.errors import ErrorsWithCodes


class Errors(metaclass=ErrorsWithCodes):
    E001 = "error description"


def test_add_codes():
    assert Errors.E001 == "[E001] error description"
    with pytest.raises(AttributeError):
        Errors.E002
    assert isclass(Errors.__class__)