# -*- coding: utf8 -*-
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# org.onap.vvp/validation-scripts
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import pytest
from tests import cached_yaml as yaml

from .helpers import validates, is_nova_server


@validates("R-901331", "R-481670", "R-663631")
def test_vm_type_assignments_on_nova_servers_only_use_get_param(yaml_file):
    """
    Make sure all nova servers only use get_param for their properties
    """
    with open(yaml_file) as fh:
        yml = yaml.load(fh)

    # skip if resources are not defined
    if "resources" not in yml:
        pytest.skip("No resources specified in the heat template")

    key_values = ["name", "flavor", "image"]
    invalid_nova_servers = set()

    for k, v in yml["resources"].items():
        if not is_nova_server(v):
            continue

        for k2, v2 in v["properties"].items():
            if k2 in key_values:
                if not isinstance(v2, dict):
                    invalid_nova_servers.add(k)
                elif "get_param" not in v2:
                    invalid_nova_servers.add(k)
    msg = (
        "These OS::Nova::Server resources do not derive one or more of "
        + "their {} properties via get_param: {}"
    ).format(", ".join(key_values), ", ".join(invalid_nova_servers))
    assert not invalid_nova_servers, msg