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Merge 9e4d818a4a into 8c99ac78b7

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Andrew Pimenov 2026-08-26 17:03:39 +03:00 • committed by GitHub
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1 changed files with 38 additions and 6 deletions
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44
tests/test_hop_asn.py
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@ -1,24 +1,37 @@
from __future__ import annotations
import dns.exception
import pytest
from unittest.mock import AsyncMock, Mock
from netsleuth.interpret import path_asn_findings
from netsleuth.models import TraceHop, TraceResult
from netsleuth.probes.hop_asn import cymru_query_name, enrich_hops, parse_cymru_asname
from netsleuth.probes.hop_asn import (
_txt,
cymru_query_name,
enrich_hops,
parse_cymru_asname,
)
ORIGIN_ZONE = "origin.asn.cymru.com"
ORIGIN6_ZONE = "origin6.asn.cymru.com"
def test_cymru_query_name_reverses_ipv4_octets():
assert cymru_query_name("1.2.3.4", ORIGIN_ZONE, ORIGIN6_ZONE) == f"4.3.2.1.{ORIGIN_ZONE}"
assert (
cymru_query_name("1.2.3.4", ORIGIN_ZONE, ORIGIN6_ZONE)
== f"4.3.2.1.{ORIGIN_ZONE}"
)
def test_cymru_query_name_reverses_ipv6_nibbles_against_a_hand_expanded_literal():
# 2001:db8::1 expands to 2001:0db8:0000:...:0001 -> 32 hex nibbles, reversed and
# dot-joined. Verified independently via `ipaddress` before hardcoding here.
expected = "1" + ".0" * 23 + ".8.b.d.0.1.0.0.2"
assert cymru_query_name("2001:db8::1", ORIGIN_ZONE, ORIGIN6_ZONE) == f"{expected}.{ORIGIN6_ZONE}"
assert (
cymru_query_name("2001:db8::1", ORIGIN_ZONE, ORIGIN6_ZONE)
== f"{expected}.{ORIGIN6_ZONE}"
)
@pytest.mark.parametrize(
@ -59,7 +72,11 @@ async def test_enrich_hops_dedupes_repeated_ips_and_skips_none_ips(monkeypatch):
trace = TraceResult(target="8.8.8.8", hops=[hop_a, hop_b, hop_c])
await enrich_hops(
[trace], origin_zone=ORIGIN_ZONE, origin6_zone=ORIGIN6_ZONE, asn_zone="asn.cymru.com", timeout=1.0
[trace],
origin_zone=ORIGIN_ZONE,
origin6_zone=ORIGIN6_ZONE,
asn_zone="asn.cymru.com",
timeout=1.0,
)
assert calls == ["8.8.8.8"]
@ -79,7 +96,11 @@ async def test_enrich_hops_fills_reverse_dns_only_when_absent(monkeypatch):
trace = TraceResult(target="1.1.1.1", hops=[hop_with_rdns, hop_without_rdns])
await enrich_hops(
[trace], origin_zone=ORIGIN_ZONE, origin6_zone=ORIGIN6_ZONE, asn_zone="asn.cymru.com", timeout=1.0
[trace],
origin_zone=ORIGIN_ZONE,
origin6_zone=ORIGIN6_ZONE,
asn_zone="asn.cymru.com",
timeout=1.0,
)
assert hop_with_rdns.reverse_dns == "already.set"
@ -87,7 +108,9 @@ async def test_enrich_hops_fills_reverse_dns_only_when_absent(monkeypatch):
def _trace_with_countries(*countries: str | None) -> TraceResult:
hops = [TraceHop(ttl=i + 1, ip=f"1.1.1.{i}", country=c) for i, c in enumerate(countries)]
hops = [
TraceHop(ttl=i + 1, ip=f"1.1.1.{i}", country=c) for i, c in enumerate(countries)
]
return TraceResult(target="1.1.1.1", hops=hops)
@ -106,3 +129,12 @@ def test_path_asn_findings_silent_on_a_single_foreign_hop():
def test_path_asn_findings_silent_when_country_is_unknown_throughout():
trace = _trace_with_countries(None, None, None)
assert path_asn_findings(trace, "RU") == []
@pytest.mark.asyncio
async def test_txt_returns_empty_list_on_dns_exception():
resolver = Mock()
resolver.resolve = AsyncMock(side_effect=dns.exception.DNSException())
result = await _txt(resolver, "test.name")
assert result == []