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


def test_unique_resources_across_all_yaml_files(yaml_files):
    '''
    Check that all instance names are unique
    across all yaml files.
    '''
    resources_ids = []
    for yaml_file in yaml_files:
        with open(yaml_file) as fh:
            yml = yaml.load(fh)
        if 'resources' not in yml:
            continue
        resources_ids.extend(yml['resources'].keys())

    dup_ids = [item
               for item, count in collections.Counter(resources_ids).items()
               if count > 1]

    assert not dup_ids