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How to use cache_directory method in molecule

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test_cloud_vendor_prefixes.py

Source:test_cloud_vendor_prefixes.py

1import json2import tempfile3from pathlib import Path4import pytest5from netlookup.network_sets import base6from netlookup.network import NetworkError7from netlookup.prefixes import Prefixes8from netlookup.network_sets.aws import AWS, AWSPrefix9from netlookup.network_sets.azure import Azure, AzurePrefix10from netlookup.network_sets.gcp import GCP, GCPPrefix11from netlookup.network_sets.google import GoogleServices, GoogleServicePrefix12from ..constants import MATCH_PREFIXES_LOOKUPS, INVALID_ADDRESS_LOOKUPS13DATA_PATH = Path(__file__).parent.absolute().joinpath('data')14TEST_DATA_PREFIX_LEN = 408515TEST_NETWORK_ADDRESSES = (16    {17        'address': '8.34.208.0',18        'network': '8.34.208.0/20',19    },20    {21        'address': '8.34.223.10',22        'network': '8.34.208.0/20',23    },24    {25        'address': '8.34.223.254',26        'network': '8.34.208.0/20',27    },28    {29        'address': '8.34.223.255',30        'network': '8.34.208.0/20',31    },32    {33        'address': '8.34.224.0',34    },35    {36        'address': '2c0f:fb50:4000::0',37        'network': '2c0f:fb50:4000::/36'38    },39    {40        'address': '2c0f:fb50:4000::10',41        'network': '2c0f:fb50:4000::/36'42    },43    {44        'address': '2c0f:fb50:4fff:ffff:ffff:ffff:ffff:fffe',45        'network': '2c0f:fb50:4000::/36'46    },47    {48        'address': '2c0f:fb50:4fff:ffff:ffff:ffff:ffff:ffff',49        'network': '2c0f:fb50:4000::/36'50    },51    {52        'address': '2c0f:fb50:5000::0'53    }54)55TEST_JSON_REQUIRED_FIELDS = ('type', 'cidr')56TEST_FILTER_COUNTS = {57    'invalidvalue': 0,58    'aws': 1414,59    'azure': 2574,60    'gcp': 72,61    'google': 25,62}63@pytest.fixture64def mock_open_permission_denied(monkeypatch):65    """66    Fixture to mock67    """68    # pylint: disable=unused-argument69    def permission_denied(*args):70        """71        Always return false for os.access72        """73        raise PermissionError74    monkeypatch.setattr(base.Path, 'open', permission_denied)75def validate_prefix_list(network_set, loader_class):76    """77    Validate prefix list78    """79    for network in network_set:80        assert isinstance(network, loader_class)81    for network in network_set:82        assert isinstance(network, loader_class)83        value = network.__repr__()84        assert isinstance(value, str)85        assert value == str(network)86def test_cloud_vendor_prefixes_networks_no_data():87    """88    Test creating networks with no data using new temporary directory89    """90    tempdir = tempfile.mkdtemp()91    prefixes = Prefixes(cache_directory=tempdir)92    assert len(prefixes) == 093def test_cloud_vendor_prefixes_missing_directory():94    """95    Test creating cache directory96    """97    tempdir = tempfile.mkdtemp()98    cache_directory = Path(tempdir, 'test')99    assert not cache_directory.exists()100    prefixes = Prefixes(cache_directory=cache_directory)101    assert cache_directory.exists()102    assert len(prefixes) == 0103# pylint: disable=unused-argument,redefined-outer-name104def test_cloud_vendor_prefixes_missing_directory_create_error(mock_path_mkdir_permission_denied):105    """106    Test creating cache directory107    """108    cache_directory = Path('/D78B28E2-14AC-47B7-90DF-DC2694651038')109    assert not cache_directory.exists()110    with pytest.raises(NetworkError):111        Prefixes(cache_directory=cache_directory)112    assert not cache_directory.exists()113def test_cloud_vendor_prefixes_networks_iterator_load():114    """115    Test loading networks as side effect of iterator116    """117    tempdir = tempfile.mkdtemp()118    prefixes = Prefixes(cache_directory=tempdir)119    for vendor in prefixes.vendors:120        assert len(vendor) == 0121        next(vendor)122        assert len(vendor) > 0123def test_cloud_vendor_prefixes_networks_save():124    """125    Test saving networks as side effect of iterator126    """127    tempdir = tempfile.mkdtemp()128    prefixes = Prefixes(cache_directory=tempdir)129    for vendor in prefixes.vendors:130        assert len(vendor) == 0131        next(vendor)132        assert len(vendor) > 0133    prefixes.save()134    prefixes = Prefixes(cache_directory=tempdir)135    for vendor in prefixes.vendors:136        assert len(vendor) > 0137# pylint: disable=unused-argument138def test_cloud_vendor_prefixes_networks_save_no_permission(mock_open_permission_denied):139    """140    Test saving networks to files without permissions141    """142    tempdir = tempfile.mkdtemp()143    prefixes = Prefixes(cache_directory=tempdir)144    for vendor in prefixes.vendors:145        assert len(vendor) == 0146        next(vendor)147        assert len(vendor) > 0148    with pytest.raises(NetworkError):149        prefixes.save()150def test_cloud_vendor_networks_loading():151    """152    Test creating networks with test data, ensuring correct number of networks is loaded153    """154    prefixes = Prefixes(cache_directory=DATA_PATH)155    assert len(prefixes) == TEST_DATA_PREFIX_LEN156def test_cloud_vendor_prefix_filtering():157    """158    Test filtering cloud vendor prefixes159    """160    prefixes = Prefixes(cache_directory=DATA_PATH)161    for name, count in TEST_FILTER_COUNTS.items():162        matches = prefixes.filter_type(name)163        assert len(matches) == count164def test_cloud_vendor_prefix_find_valid_addresses():165    """166    Test finding of addresses from cloud vendor prefixes167    """168    prefixes = Prefixes(cache_directory=DATA_PATH)169    for value in MATCH_PREFIXES_LOOKUPS:170        address = prefixes.find(value)171        assert address is not None172def test_cloud_vendor_prefix_find_invalid_addresses():173    """174    Test finding of invalid address values from cloud vendor prefixes175    """176    prefixes = Prefixes(cache_directory=DATA_PATH)177    for value in INVALID_ADDRESS_LOOKUPS:178        with pytest.raises(NetworkError):179            prefixes.find(value)180def test_cloud_vendor_prefix_lookup():181    """182    Test looking up networks from test data183    """184    prefixes = Prefixes(cache_directory=DATA_PATH)185    for testcase in TEST_NETWORK_ADDRESSES:186        prefix = prefixes.find(testcase['address'])187        network = testcase.get('network', None)188        if network is not None:189            assert prefix is not None190            assert str(prefix.cidr) == network191        else:192            assert prefix is None193def test_cloud_vendor_json_formatting():194    """195    Test all loaded networks can be formatted as JSON196    """197    prefixes = Prefixes(cache_directory=DATA_PATH)198    for prefix in prefixes:199        testdata = json.loads(json.dumps(prefix.as_dict()))200        for field in TEST_JSON_REQUIRED_FIELDS:201            assert field in testdata202            assert testdata[field] is not None203def test_cloud_vendor_prefixes_invalid_vendor():204    """205    Test cases for AWS prefixes206    """207    prefixes = Prefixes(cache_directory=DATA_PATH)208    with pytest.raises(NetworkError):209        prefixes.get_vendor('8522A483-A895-40F3-B5BE-93DDDCA58E51')210def test_cloud_vendor_prefixes_aws():211    """212    Test cases for AWS prefixes213    """214    prefixes = Prefixes(cache_directory=DATA_PATH)215    vendor = prefixes.get_vendor('aws')216    assert isinstance(vendor, AWS)217    validate_prefix_list(vendor, AWSPrefix)218    regions = vendor.regions219    assert isinstance(regions, list)220    for region in regions:221        assert isinstance(region, str)222def test_cloud_vendor_prefixes_azure():223    """224    Test cases for Azure prefixes225    """226    prefixes = Prefixes(cache_directory=DATA_PATH)227    vendor = prefixes.get_vendor('azure')228    assert isinstance(vendor, Azure)229    validate_prefix_list(vendor, AzurePrefix)230def test_cloud_vendor_prefixes_gcp():231    """232    Test cases for GCP prefixes233    """234    prefixes = Prefixes(cache_directory=DATA_PATH)235    vendor = prefixes.get_vendor('gcp')236    assert isinstance(vendor, GCP)237    validate_prefix_list(vendor, GCPPrefix)238def test_cloud_vendor_prefixes_google_services():239    """240    Test cases for google services prefixes241    """242    prefixes = Prefixes(cache_directory=DATA_PATH)243    vendor = prefixes.get_vendor('google')244    assert isinstance(vendor, GoogleServices)...

prefixes.py

Source:prefixes.py

...12    """13    def __init__(self, cache_directory=None):14        super().__init__()15        if cache_directory is None:16            cache_directory = get_cache_directory()17        self.cache_directory = Path(cache_directory).expanduser()18        self.vendors = [19            AWS(cache_directory=self.cache_directory),20            Azure(cache_directory=self.cache_directory),21            GCP(cache_directory=self.cache_directory),22            GoogleServices(cache_directory=self.cache_directory),23        ]24        self.load()25    def update(self):26        """27        Fetch and update cached prefix data28        """29        for vendor in self.vendors:30            try:...

FileCache.py

Source:FileCache.py

1from __future__ import absolute_import, division, print_function, unicode_literals2import gzip3import json4import os5_NONE = object()6class FileCache(object):7    """A two-level cache, which stores expensive results in memory and on disk.8    """9    def __init__(self, cache_directory, creator, open=gzip.open, suffix='.gz'):10        self.cache_directory = cache_directory11        self.creator = creator12        self.open = open13        self.suffix = suffix14        self.cached_data = {}15        if not os.path.exists(self.cache_directory):16            os.makedirs(self.cache_directory)17    def get_file_data(self, name):18        if os.path.exists(filename):19            return json.load(self.open(filename))20        result = self.creator(name)21        return result22    def get_data(self, name, save_in_cache, can_create, default=None):23        name = str(name)24        result = self.cached_data.get(name, _NONE)25        if result is _NONE:26            filename = os.path.join(self.cache_directory, name) + self.suffix27            if os.path.exists(filename):28                result = json.load(self.open(filename)) or _NONE29            if result is _NONE and can_create:30                result = self.creator(name)31                if save_in_cache:32                    json.dump(result, self.open(filename, 'w'))33        return default if result is _NONE else result34    def _files(self):35        return os.listdir(self.cache_directory)36    def cache_list(self):37        for f in self._files():38            if f.endswith(self.suffix):39                yield f[:-len(self.suffix)]40    def file_count(self):41        return len(self._files())42    def clear(self):43        """Clears both local files and memory."""44        self.cached_data = {}45        for f in self._files():...

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