""" PYTEST_DONT_REWRITE """ import pytest from pydantic import BaseModel, ValidationError, validator def test_assert_raises_validation_error(): class Model(BaseModel): a: str @validator('a') def check_a(cls, v): assert v == 'a', 'invalid a' return v assert Model(a='a').a == 'a' with pytest.raises(ValidationError) as exc_info: Model(a='snap') expected_errors = [{'loc': ('a',), 'msg': 'invalid a', 'type': 'assertion_error'}] actual_errors = exc_info.value.errors() if expected_errors != actual_errors: pytest.fail(f'Actual errors: {actual_errors}\nExpected errors: {expected_errors}')