# -*- coding: utf8 -*-
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# org.onap.vvp/validation-scripts
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import re

from tests.helpers import check_indices, validates
from tests.structures import Heat


SERVER_NAME_PARAM = re.compile(r"(.*_name_)(\d+)")


@validates("R-54171")
def test_nova_server_name_parameter_starts_at(yaml_file):
    params = Heat(yaml_file).parameters
    invalid_params = check_indices(
        SERVER_NAME_PARAM, params, "OS::Nova::Server Name Parameters"
    )
    assert not invalid_params, ". ".join(invalid_params)