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dice-counter/tests/test_net.py
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gitea-actionsandClaude Opus 5 26338bfa29 Adresy a data podle systému, ne podle Linuxu
Než začneme rozdávat binárky pro macOS a Windows, musí se na nich chovat
rozumně to, co dosud počítalo s Linuxem.

Adresy rozhraní se hledaly linuxovým ioctl. Na Windows chybí fcntl, na
macOS to číslo znamená něco jiného, takže obojí propadlo až na poslední
zálohu přes hostname — a ta na macOS vrátí jednu adresu. Tabule by tam
nabídla jedinou volbu, přesně to, co jsme minule opravovali. Přibyla
mezizáloha přes ifconfig; spouští se jen tam, kde ioctl nic nenašel,
takže na Linuxu se neplatí nic. Parsování je zvlášť jako čistá funkce,
ať jde otestovat i bez macOS pod rukama.

Databáze z binárky mířila do XDG adresáře na všech systémech. Na Windows
by to znamenalo C:\Users\...\.local\share\, což tam nikdo nečeká. Teď se
volí podle systému: LOCALAPPDATA, Library/Application Support, XDG.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-22 13:13:41 +02:00

140 lines
4.6 KiB
Python

import pytest
import net
@pytest.mark.parametrize("ip, interface, expected", [
("127.0.0.1", "lo", None), # loopback
("169.254.3.7", "wlp44s0", None), # link-local, adresa bez DHCP
("0.0.0.0", "eth0", None),
("nesmysl", "eth0", None),
("192.168.1.20", "wlp44s0", "lan"),
("10.186.234.182", "wlp44s0", "lan"), # hotspot z telefonu
("172.20.10.3", "en0", "lan"), # hotspot z iPhonu
("100.91.0.24", "tailscale0", "tailnet"),
("172.17.0.1", "docker0", "virtual"),
("192.168.122.1", "virbr0", "virtual"),
("10.0.0.5", "br-2f1a798d", "virtual"),
("93.184.216.34", "eth0", "public"),
])
def test_klasifikace_podle_rozsahu(ip, interface, expected):
assert net.classify(ip, interface) == expected
def test_tailnet_pozna_i_jine_rozhrani():
"""Rozhoduje rozsah adresy, ne jméno rozhraní."""
assert net.classify("100.64.0.1", "eth0") == "tailnet"
assert net.classify("100.127.255.254", "") == "tailnet"
assert net.classify("100.128.0.1", "eth0") == "public" # už mimo rozsah
def test_poradi_adres():
found = [
("docker0", "172.17.0.1"),
("tailscale0", "100.91.0.24"),
("lo", "127.0.0.1"),
("wlp44s0", "10.186.234.182"),
("eth0", "192.168.1.20"),
]
ranked = net.rank(found, primary="10.186.234.182")
assert [a.ip for a in ranked] == [
"10.186.234.182", # výchozí trasa
"192.168.1.20", # ostatní místní sítě
"100.91.0.24", # tailnet funguje i napříč sítěmi
"172.17.0.1", # virtuální až nakonec
]
assert ranked[0].primary
assert not ranked[1].primary
def test_bez_vychozi_trasy_se_poradi_drzi_typu():
found = [("docker0", "172.17.0.1"), ("wlp44s0", "192.168.1.20")]
ranked = net.rank(found, primary=None)
assert [a.ip for a in ranked] == ["192.168.1.20", "172.17.0.1"]
assert not any(a.primary for a in ranked)
def test_duplicity_se_slucuji():
found = [("wlp44s0", "10.0.0.5"), ("", "10.0.0.5")]
assert len(net.rank(found, primary="10.0.0.5")) == 1
def test_zadna_pouzitelna_adresa():
assert net.rank([("lo", "127.0.0.1")], primary=None) == []
def test_dice_host_ma_posledni_slovo(monkeypatch):
monkeypatch.setenv("DICE_HOST", "192.168.5.5")
found = net.addresses()
assert [a.ip for a in found] == ["192.168.5.5"]
assert found[0].primary
def test_url_a_popisek():
address = net.Address(ip="10.0.0.5", interface="wlp44s0", kind="tailnet")
assert address.url(8000) == "http://10.0.0.5:8000"
assert address.label == "přes Tailscale"
def test_v_systemu_se_neco_najde():
"""Na stroji s libovolnou sítí musí vyjít aspoň jedna adresa."""
found = net.addresses()
assert all(net.classify(a.ip, a.interface) for a in found)
assert len({a.ip for a in found}) == len(found)
IFCONFIG_MACOS = """\
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
\toptions=1203<RXCSUM,TXCSUM,TXSTATUS,SW_TIMESTAMP>
\tinet 127.0.0.1 netmask 0xff000000
\tinet6 ::1 prefixlen 128
gif0: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
\tether 3c:22:fb:aa:bb:cc
\tinet6 fe80::14b0:6b1a:9e2f:1a4c%en0 prefixlen 64 secured scopeid 0xb
\tinet 192.168.0.42 netmask 0xffffff00 broadcast 192.168.0.255
\tmedia: autoselect
\tstatus: active
utun4: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1280
\tinet 100.99.98.97 --> 100.99.98.97 netmask 0xff000000
"""
def test_ifconfig_vytahne_rozhrani_a_adresy():
"""macOS na ioctl z Linuxu neslyší, tak se čte výstup ifconfigu."""
assert net.parse_ifconfig(IFCONFIG_MACOS) == [
("lo0", "127.0.0.1"),
("en0", "192.168.0.42"),
("utun4", "100.99.98.97"),
]
def test_ifconfig_si_neplete_inet6_s_inet():
"""`inet6` začíná stejně jako `inet`; IPv6 adresy tudy projít nesmí."""
assert net.parse_ifconfig("en0: flags=1\n\tinet6 fe80::1 prefixlen 64\n") == []
def test_adresy_z_ifconfigu_projdou_celym_retezem(monkeypatch):
"""Bez linuxového ioctl se sáhne po ifconfigu, teprve pak po hostname."""
monkeypatch.delenv("DICE_HOST", raising=False)
monkeypatch.setattr(net, "_from_interfaces", lambda: [])
monkeypatch.setattr(net, "_from_ifconfig",
lambda: net.parse_ifconfig(IFCONFIG_MACOS))
monkeypatch.setattr(net, "_from_hostname", lambda: pytest.fail("moc brzy"))
monkeypatch.setattr(net, "default_route_address", lambda: "192.168.0.42")
found = net.addresses()
assert [a.ip for a in found] == ["192.168.0.42", "100.99.98.97"]
assert found[0].primary and found[0].interface == "en0"
assert found[1].kind == "tailnet"