def test_wrong_FK_value_raises_error(self):
        mtv = ModelToValidate(number=10, name='Some Name', parent_id=3)
        self.assertFieldFailsValidationWithMessage(
            mtv.full_clean, 'parent',
            [mtv.parent_id % 'model to validate instance with id %r does not exist.']
        )
        mtv = ModelToValidate(number=10, name='Some Name', ufm_id='Some Name')
        self.assertFieldFailsValidationWithMessage(
            mtv.full_clean, 'ufm',
            ["unique fields model instance with unique_charfield %r does not exist." % mtv.name]
        )
dataset/ETHPy150Open django/django/tests/validation/tests.py/BaseModelValidationTests.test_wrong_FK_value_raises_error/swapped operands of `%`