mirror of
https://github.com/Horizontal42/netsleuth.git
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242 lines
8 KiB
Python
242 lines
8 KiB
Python
from __future__ import annotations
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import httpx
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import pytest
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from netcheck.bgp import (
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classify_stability,
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parse_announced_prefixes,
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parse_as_overview,
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parse_asn_neighbours,
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parse_bgp_updates,
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ripestat,
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)
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from netcheck.config import Providers
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from netcheck.models import BgpEvent
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def test_as_overview_extracts_holder_and_block(api_fixture):
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info = parse_as_overview(api_fixture("ripestat_as_overview.json"))
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assert info["holder"] == "EXAMPLE-AS Example Telecom BV"
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assert info["registry"] == "IANA 16-bit Autonomous System Number Block"
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def test_as_overview_of_an_error_payload_is_empty():
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assert parse_as_overview({"status": "error", "data": {}}) == {
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"holder": None,
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"registry": None,
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"allocated_at": None,
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}
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def test_neighbours_split_into_upstreams_peers_and_downstreams(api_fixture):
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upstreams, peers, downstreams = parse_asn_neighbours(api_fixture("ripestat_asn_neighbours.json"))
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assert upstreams == ["AS3356", "AS1299"]
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assert downstreams == ["AS6939", "AS64501"]
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assert peers == ["AS8075"]
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def test_announced_prefixes_are_counted_by_family(api_fixture):
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prefixes, v4, v6 = parse_announced_prefixes(api_fixture("ripestat_announced_prefixes.json"))
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assert prefixes == ["203.0.113.0/24", "198.51.100.0/24", "2001:db8::/32"]
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assert v4 == 2
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assert v6 == 1
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def test_announced_prefixes_of_an_empty_payload():
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assert parse_announced_prefixes({"data": {}}) == ([], 0, 0)
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def test_bgp_updates_become_typed_events(api_fixture):
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events = parse_bgp_updates(api_fixture("ripestat_bgp_updates.json"))
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assert len(events) == 3
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assert events[0].type == "A"
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assert events[0].prefix == "203.0.113.0/24"
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assert events[0].path == [3356, 64500]
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assert events[1].type == "W"
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assert events[1].path == []
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def test_stability_of_a_quiet_asn_is_stable():
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assert classify_stability([], days=14) == "stable"
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def test_stability_of_a_flapping_asn_is_unstable():
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events = [BgpEvent(timestamp="2026-08-01T00:00:00", type="W", prefix="203.0.113.0/24") for _ in range(60)]
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assert classify_stability(events, days=14) == "unstable"
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def test_stability_only_counts_withdrawals_not_announcements():
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events = [BgpEvent(timestamp="2026-08-01T00:00:00", type="A", prefix="203.0.113.0/24") for _ in range(200)]
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assert classify_stability(events, days=14) == "stable"
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def test_stability_is_unknown_without_a_timeframe():
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assert classify_stability([BgpEvent(timestamp="x", type="W")], days=0) == "unknown"
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async def test_ripestat_bounds_bulk_calls_with_max_rows_and_a_timeframe(httpx_mock):
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httpx_mock.add_response(json={"status": "ok", "data": {}})
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providers = Providers(ripestat_max_rows=25, ripestat_timeframe_days=7)
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async with httpx.AsyncClient() as client:
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await ripestat(client, providers, "bgp-updates", "AS64500")
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request = httpx_mock.get_request()
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assert request.url.params["resource"] == "AS64500"
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assert request.url.params["max_rows"] == "25"
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assert "starttime" in request.url.params
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assert request.url.path.endswith("/bgp-updates/data.json")
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async def test_ripestat_does_not_bound_non_bulk_calls(httpx_mock):
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httpx_mock.add_response(json={"status": "ok", "data": {}})
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async with httpx.AsyncClient() as client:
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await ripestat(client, Providers(), "as-overview", "AS64500")
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request = httpx_mock.get_request()
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assert "max_rows" not in request.url.params
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assert "starttime" not in request.url.params
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import json
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from pathlib import Path
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from netcheck.bgp import (
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cached_json,
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parse_asrank,
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parse_cymru_origin,
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parse_peeringdb_net,
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parse_peeringdb_netixlan,
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)
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def test_asrank_gives_rank_and_customer_cone(api_fixture):
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rank, cone_asns, cone_prefixes = parse_asrank(api_fixture("asrank.json"))
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assert rank == 1842
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assert cone_asns == 37
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assert cone_prefixes == 412
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def test_asrank_of_an_unknown_asn_is_all_none():
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assert parse_asrank({"data": {"asn": None}}) == (None, None, None)
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def test_cymru_origin_txt_is_split_into_fields():
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record = "64500 | 203.0.113.0/24 | NL | ripencc | 2001-05-21"
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assert parse_cymru_origin(record) == {
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"asn": "AS64500",
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"prefix": "203.0.113.0/24",
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"country": "NL",
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"registry": "ripencc",
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"allocated_at": "2001-05-21",
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}
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def test_cymru_origin_with_multiple_origin_asns_takes_the_first():
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record = "64500 64501 | 203.0.113.0/24 | NL | ripencc | 2001-05-21"
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assert parse_cymru_origin(record)["asn"] == "AS64500"
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def test_cymru_origin_of_garbage_is_empty():
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assert parse_cymru_origin("no such name") == {}
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def test_peeringdb_net_gives_info_type_traffic_and_id(api_fixture):
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info_type, traffic, net_id = parse_peeringdb_net(api_fixture("peeringdb_net.json"))
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assert info_type == "Cable/DSL/ISP"
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assert traffic == "100-200Gbps"
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assert net_id == 4242
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def test_peeringdb_net_of_an_unlisted_asn_is_all_none():
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assert parse_peeringdb_net({"data": []}) == (None, None, None)
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def test_peeringdb_netixlan_lists_only_operational_exchanges(api_fixture):
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ixps = parse_peeringdb_netixlan(api_fixture("peeringdb_netixlan.json"))
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assert [i.name for i in ixps] == ["AMS-IX", "DE-CIX Frankfurt"]
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assert ixps[0].country == "NL"
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assert ixps[1].speed_mbps == 200000
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async def test_cached_json_writes_then_reuses_the_cache(tmp_path: Path):
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calls = []
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async def fetch() -> dict:
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calls.append(1)
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return {"value": len(calls)}
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first = await cached_json(tmp_path, "peeringdb-net-64500", ttl_hours=24, fetch=fetch)
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second = await cached_json(tmp_path, "peeringdb-net-64500", ttl_hours=24, fetch=fetch)
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assert first == {"value": 1}
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assert second == {"value": 1}
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assert len(calls) == 1
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assert json.loads((tmp_path / "peeringdb-net-64500.json").read_text(encoding="utf-8"))["value"] == 1
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async def test_cached_json_refetches_once_the_entry_expires(tmp_path: Path):
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calls = []
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async def fetch() -> dict:
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calls.append(1)
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return {"value": len(calls)}
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await cached_json(tmp_path, "k", ttl_hours=24, fetch=fetch)
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result = await cached_json(tmp_path, "k", ttl_hours=0, fetch=fetch)
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assert result == {"value": 2}
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assert len(calls) == 2
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async def test_cached_json_survives_a_corrupt_cache_file(tmp_path: Path):
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(tmp_path / "k.json").write_text("{not json", encoding="utf-8")
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async def fetch() -> dict:
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return {"value": "fresh"}
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assert await cached_json(tmp_path, "k", ttl_hours=24, fetch=fetch) == {"value": "fresh"}
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from netcheck.bgp import build_bgp_intel
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def test_build_bgp_intel_merges_every_source(api_fixture):
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intel = build_bgp_intel(
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asn="AS64500",
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overview=api_fixture("ripestat_as_overview.json"),
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neighbours=api_fixture("ripestat_asn_neighbours.json"),
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prefixes=api_fixture("ripestat_announced_prefixes.json"),
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updates=api_fixture("ripestat_bgp_updates.json"),
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asrank=api_fixture("asrank.json"),
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pdb_net=api_fixture("peeringdb_net.json"),
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pdb_ixlan=api_fixture("peeringdb_netixlan.json"),
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timeframe_days=14,
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)
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assert intel.asn == "AS64500"
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assert intel.holder == "EXAMPLE-AS Example Telecom BV"
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assert intel.upstreams == ["AS3356", "AS1299"]
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assert intel.prefix_count_v4 == 2
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assert intel.prefix_count_v6 == 1
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assert intel.stability == "stable"
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assert intel.asrank == 1842
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assert intel.cone_asns == 37
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assert intel.pdb_info_type == "Cable/DSL/ISP"
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assert [i.name for i in intel.ixps] == ["AMS-IX", "DE-CIX Frankfurt"]
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assert len(intel.flaps) == 3
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def test_build_bgp_intel_tolerates_every_optional_source_being_absent(api_fixture):
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intel = build_bgp_intel(
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asn="AS64500",
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overview=api_fixture("ripestat_as_overview.json"),
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neighbours={},
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prefixes={},
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updates={},
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asrank=None,
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pdb_net=None,
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pdb_ixlan=None,
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timeframe_days=14,
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)
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assert intel.asn == "AS64500"
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assert intel.upstreams == []
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assert intel.asrank is None
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assert intel.pdb_info_type is None
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assert intel.ixps == []
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assert intel.stability == "stable"
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