spaCy/spacy/tests/regression/test_issue6258.py

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import pydantic
import pytest
from pydantic import ValidationError
from spacy.schemas import TokenPattern, TokenPatternSchema
def test_issue6258():
"""Test that the non-empty constraint pattern field is respected"""
# These one is valid
TokenPatternSchema(pattern=[TokenPattern()])
# But an empty pattern list should fail to validate
# based on the schema's constraint
with pytest.raises(ValidationError):
TokenPatternSchema(pattern=[])