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

from tests.helpers import validates, load_yaml
from tests.utils.nested_iterables import find_all_get_param_in_yml

AVAILABILITY_ZONE = re.compile(r"availability_zone_?\d*")


@validates("R-90279")
def test_all_parameters_used_in_template(yaml_file):
    yml = load_yaml(yaml_file)
    params = (yml.get("parameters") or {}).keys()
    expected_params = {p for p in params if not AVAILABILITY_ZONE.match(p)}
    used_params = set(find_all_get_param_in_yml(yml))
    unused_params = expected_params.difference(used_params)

    msg = "Unused parameters detected in template {}".format(unused_params)
    assert not unused_params, msg