"""Unit tests for the parsing and measurement helpers in collect_data.py. The fixtures below reproduce the output formats of the system utilities on the platforms and locales the collector supports. They exercise the parsers without needing network access. """ import json import struct import pytest import collect_data as cd # --------------------------------------------------------------------------- # # ping output # --------------------------------------------------------------------------- # WINDOWS_EN = """ Pinging 8.8.8.8 with 32 bytes of data: Reply from 8.8.8.8: bytes=32 time=14ms TTL=117 Reply from 8.8.8.8: bytes=32 time<1ms TTL=117 Request timed out. Reply from 8.8.8.8: bytes=32 time=20ms TTL=117 Ping statistics for 8.8.8.8: Packets: Sent = 4, Received = 3, Lost = 1 (25% loss), Approximate round trip times in milli-seconds: Minimum = 0ms, Maximum = 20ms, Average = 11ms """ WINDOWS_ZH = """ 正在 Ping 8.8.8.8 具有 32 字节的数据: 来自 8.8.8.8 的回复: 字节=32 时间=14ms TTL=117 来自 8.8.8.8 的回复: 字节=32 时间=15ms TTL=117 请求超时。 来自 8.8.8.8 的回复: 字节=32 时间<1ms TTL=117 8.8.8.8 的 Ping 统计信息: 数据包: 已发送 = 4，已接收 = 3，丢失 = 1 (25% 丢失)， 往返行程的估计时间(以毫秒为单位): 最短 = 0ms，最长 = 15ms，平均 = 9ms """ WINDOWS_DE = """ Ping wird ausgeführt für 8.8.8.8 mit 32 Bytes Daten: Antwort von 8.8.8.8: Bytes=32 Zeit=14ms TTL=117 Antwort von 8.8.8.8: Bytes=32 Zeit=15ms TTL=117 Ping-Statistik für 8.8.8.8: Pakete: Gesendet = 2, Empfangen = 2, Verloren = 0 (0% Verlust), Ca. Zeitangaben in Millisek.: Minimum = 14ms, Maximum = 15ms, Mittelwert = 14ms """ WINDOWS_FR = """ Envoi d'une requête 'Ping' 8.8.8.8 avec 32 octets de données : Réponse de 8.8.8.8 : octets=32 temps=14 ms TTL=117 Réponse de 8.8.8.8 : octets=32 temps=16 ms TTL=117 Statistiques Ping pour 8.8.8.8: Paquets : envoyés = 2, reçus = 2, perdus = 0 (perte 0%), Durée approximative des boucles en millisecondes : Minimum = 14ms, Maximum = 16ms, Moyenne = 15ms """ WINDOWS_RU = """ Обмен пакетами с 8.8.8.8 по с 32 байтами данных: Ответ от 8.8.8.8: число байт=32 время=14мс TTL=117 Ответ от 8.8.8.8: число байт=32 время=17мс TTL=117 Статистика Ping для 8.8.8.8: Пакетов: отправлено = 2, получено = 2, потеряно = 0 (0% потерь) Приблизительное время приема-передачи в мс: Минимальное = 14мсек, Максимальное = 17 мсек, Среднее = 15 мсек """ WINDOWS_IPV6 = """ Pinging 2001:4860:4860::8888 with 32 bytes of data: Reply from 2001:4860:4860::8888: time=15ms Reply from 2001:4860:4860::8888: time=14ms Ping statistics for 2001:4860:4860::8888: Packets: Sent = 2, Received = 2, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 14ms, Maximum = 15ms, Average = 14ms """ WINDOWS_UNREACHABLE = """ Pinging 10.9.9.9 with 32 bytes of data: Reply from 192.168.1.23: Destination host unreachable. Reply from 192.168.1.23: Destination host unreachable. PING: transmit failed. General failure. Ping statistics for 10.9.9.9: Packets: Sent = 3, Received = 2, Lost = 1 (33% loss), """ LINUX = """ PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data. 64 bytes from 8.8.8.8: icmp_seq=1 ttl=117 time=14.2 ms 64 bytes from 8.8.8.8: icmp_seq=2 ttl=117 time=13.9 ms 64 bytes from 8.8.8.8: icmp_seq=2 ttl=117 time=14.1 ms (DUP!) From 192.168.1.1 icmp_seq=3 Destination Host Unreachable 64 bytes from 8.8.8.8: icmp_seq=4 ttl=117 time=15.0 ms --- 8.8.8.8 ping statistics --- 4 packets transmitted, 3 received, +1 duplicates, 25% packet loss, time 3004ms rtt min/avg/max/mdev = 13.900/14.367/15.000/0.464 ms """ MACOS = """ PING 8.8.8.8 (8.8.8.8): 56 data bytes 64 bytes from 8.8.8.8: icmp_seq=0 ttl=117 time=14.234 ms 64 bytes from 8.8.8.8: icmp_seq=1 ttl=117 time=13.877 ms Request timeout for icmp_seq 2 64 bytes from 8.8.8.8: icmp_seq=3 ttl=117 time=15.001 ms --- 8.8.8.8 ping statistics --- 4 packets transmitted, 3 packets received, 25.0% packet loss round-trip min/avg/max/stddev = 13.877/14.371/15.001/0.478 ms """ BUSYBOX = """ PING 8.8.8.8 (8.8.8.8): 56 data bytes 64 bytes from 8.8.8.8: seq=0 ttl=117 time=14.210 ms 64 bytes from 8.8.8.8: seq=1 ttl=117 time=13.905 ms --- 8.8.8.8 ping statistics --- 2 packets transmitted, 2 packets received, 0% packet loss round-trip min/avg/max = 13.905/14.057/14.210 ms """ @pytest.mark.parametrize("text, sent, expected", [ (WINDOWS_EN, 4, [14.0, 0.0, 20.0]), (WINDOWS_ZH, 4, [14.0, 15.0, 0.0]), (WINDOWS_DE, 2, [14.0, 15.0]), (WINDOWS_FR, 2, [14.0, 16.0]), (WINDOWS_RU, 2, [14.0, 17.0]), (WINDOWS_IPV6, 2, [15.0, 14.0]), (WINDOWS_UNREACHABLE, 3, []), (LINUX, 4, [14.2, 13.9, 15.0]), (MACOS, 4, [14.234, 13.877, 15.001]), (BUSYBOX, 2, [14.21, 13.905]), ]) def test_parse_ping_output(text, sent, expected): result = cd.parse_ping_output(text, sent=sent) assert result.rtts == expected assert result.received == len(expected) assert result.sent == sent assert result.loss_pct == round(100.0 * (sent - len(expected)) / sent, 1) def test_loss_is_clamped_and_none_when_nothing_sent(): assert cd.PingResult(sent=0, received=0).loss_pct is None assert cd.PingResult(sent=2, received=5).loss_pct == 0.0 def test_rtt_stats(): st = cd.rtt_stats([10.0, 12.0, 11.0, 15.0]) assert st["min"] == 10.0 and st["max"] == 15.0 assert st["avg"] == 12.0 and st["median"] == 11.5 assert st["jitter"] == round((2 + 1 + 4) / 3, 3) assert st["stddev"] == pytest.approx(1.871, abs=1e-3) assert cd.rtt_stats([]) == {k: None for k in ("min", "avg", "median", "max", "stddev", "jitter")} single = cd.rtt_stats([7.0]) assert single["jitter"] is None and single["stddev"] == 0.0 def test_ping_command_flags(): assert cd.ping_command("8.8.8.8", 10, 2.0, "windows") == \ ["ping", "-n", "10", "-w", "2000", "-4", "8.8.8.8"] assert cd.ping_command("2001:db8::1", 3, 2.0, "windows")[-2] == "-6" assert cd.ping_command("8.8.8.8", 10, 2.0, "iputils") == \ ["ping", "-n", "-c", "10", "-W", "2", "8.8.8.8"] assert cd.ping_command("8.8.8.8", 4, 0.4, "iputils")[5] == "1" assert cd.ping_command("8.8.8.8", 10, 2.0, "busybox") == \ ["ping", "-c", "10", "-W", "2", "8.8.8.8"] assert cd.ping_command("8.8.8.8", 10, 2.5, "bsd") == \ ["ping", "-n", "-c", "10", "-W", "2500", "8.8.8.8"] # --------------------------------------------------------------------------- # # routes, resolvers, interfaces # --------------------------------------------------------------------------- # ROUTE_PRINT = """ =========================================================================== Interface List 12...00 11 22 33 44 55 ......Intel(R) Wi-Fi 6 AX201 160MHz =========================================================================== IPv4 Route Table =========================================================================== Active Routes: Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 192.168.1.1 192.168.1.23 35 0.0.0.0 0.0.0.0 10.10.0.1 10.10.0.5 50 =========================================================================== Persistent Routes: Network Address Netmask Gateway Address Metric 0.0.0.0 0.0.0.0 192.168.1.1 Default =========================================================================== """ def test_parse_route_print_picks_lowest_metric(): assert cd.parse_route_print(ROUTE_PRINT) == ("192.168.1.1", "192.168.1.23") assert cd.parse_route_print("no routes here") is None def test_parse_ip_route_get(): text = "8.8.8.8 via 192.168.1.1 dev wlp3s0 src 192.168.1.50 uid 1000 \\ cache \n" assert cd.parse_ip_route_get(text) == {"via": "192.168.1.1", "dev": "wlp3s0", "src": "192.168.1.50"} assert cd.parse_ip_route_get("default via 10.0.0.1 dev eth0 proto dhcp metric 100") == \ {"via": "10.0.0.1", "dev": "eth0"} def test_parse_resolv_conf(): text = "# generated\nsearch lan\nnameserver 127.0.0.53 # stub\nnameserver 192.168.1.1\noptions edns0\n" assert cd.parse_resolv_conf(text) == ["127.0.0.53", "192.168.1.1"] def test_parse_route_get_default_macos(): text = """ route to: default destination: default mask: default gateway: 192.168.1.1 interface: en0 flags: """ assert cd.parse_route_get_default(text) == {"gateway": "192.168.1.1", "interface": "en0"} def test_parse_hardware_ports(): text = """Hardware Port: Wi-Fi Device: en0 Ethernet Address: 00:11:22:33:44:55 Hardware Port: Thunderbolt Ethernet Device: en5 Ethernet Address: 66:77:88:99:aa:bb """ assert cd.parse_hardware_ports(text) == {"en0": "Wi-Fi", "en5": "Thunderbolt Ethernet"} def test_link_type_from_media(): assert cd._link_type_from_media("Native 802.11") == "wifi" assert cd._link_type_from_media("802.3") == "ethernet" assert cd._link_type_from_media("Unspecified") == "unknown" assert cd._link_type_from_media("") == "unknown" assert cd._link_type_from_media("BlueTooth") == "other" # --------------------------------------------------------------------------- # # DNS packets # --------------------------------------------------------------------------- # def test_dns_query_roundtrip(): packet = cd.build_dns_query("example.com", qid=0x1234) qid, flags, qd, an, ns, ar = struct.unpack(">HHHHHH", packet[:12]) assert (qid, flags, qd, an, ns, ar) == (0x1234, 0x0100, 1, 0, 0, 0) assert packet[12:] == b"\x07example\x03com\x00" + struct.pack(">HH", 1, 1) response = struct.pack(">HHHHHH", 0x1234, 0x8183, 1, 0, 0, 0) + packet[12:] assert cd.parse_dns_response(response, 0x1234) == 3 # NXDOMAIN other = struct.pack(">HHHHHH", 0x9999, 0x8180, 1, 0, 0, 0) assert cd.parse_dns_response(other, 0x1234) is None # wrong id assert cd.parse_dns_response(packet, 0x1234) is None # a query, not a response assert cd.parse_dns_response(b"\x00", 0x1234) is None def test_random_label_is_hex(): label = cd.random_label() assert len(label) == 12 and int(label, 16) >= 0 # --------------------------------------------------------------------------- # # Wi-Fi parsers # --------------------------------------------------------------------------- # NETSH_EN = """ There is 1 interface on the system: Name : Wi-Fi Description : Intel(R) Wi-Fi 6 AX201 160MHz GUID : 4d1a2b3c-0000-1111-2222-333344445555 Physical address : 00:11:22:33:44:55 Interface type : Primary State : connected SSID : Home:Net BSSID : aa:bb:cc:dd:ee:ff Network type : Infrastructure Radio type : 802.11ax Authentication : WPA2-Personal Cipher : CCMP Connection mode : Auto Connect Band : 5 GHz Channel : 36 Receive rate (Mbps) : 1200.9 Transmit rate (Mbps) : 1200.9 Signal : 84% Profile : Home:Net Hosted network status : Not available """ NETSH_ZH = """ 系统上有 1 个接口: 名称 : WLAN 描述 : Intel(R) Wi-Fi 6 AX201 160MHz GUID : 4d1a2b3c-0000-1111-2222-333344445555 物理地址 : 00:11:22:33:44:55 接口类型 : 主要 状态 : 已连接 SSID : 家里的WiFi BSSID : aa:bb:cc:dd:ee:ff 网络类型 : 结构 无线电类型 : 802.11ac 身份验证 : WPA2 - 个人 密码 : CCMP 连接模式 : 自动连接 信道 : 149 接收速率(Mbps) : 866.7 传输速率(Mbps) : 866.7 信号 : 91% 配置文件 : 家里的WiFi 承载网络状态 : 不可用 """ NETSH_DISCONNECTED = """ There is 1 interface on the system: Name : Wi-Fi Description : Intel(R) Wi-Fi 6 AX201 160MHz GUID : 4d1a2b3c-0000-1111-2222-333344445555 Physical address : 00:11:22:33:44:55 Interface type : Primary State : disconnected Radio status : Hardware On Software On Hosted network status : Not available """ def test_parse_netsh_english(): w = cd.parse_netsh_wlan(NETSH_EN) assert w.connected and w.ssid == "Home:Net" assert w.signal_pct == 84 and w.rssi_dbm == -58.0 assert w.rx_mbps == 1200.9 and w.tx_mbps == 1200.9 assert w.channel == 36 and w.band_ghz == 5.0 and w.phy == "802.11ax" def test_parse_netsh_chinese_without_band_line(): w = cd.parse_netsh_wlan(NETSH_ZH) assert w.connected and w.ssid == "家里的WiFi" assert w.signal_pct == 91 and w.rssi_dbm == -54.5 assert w.rx_mbps == 866.7 and w.tx_mbps == 866.7 assert w.channel == 149 and w.band_ghz == 5.0 and w.phy == "802.11ac" def test_parse_netsh_disconnected(): w = cd.parse_netsh_wlan(NETSH_DISCONNECTED) assert not w.connected and w.signal_pct is None IW_LINK = """Connected to aa:bb:cc:dd:ee:ff (on wlp3s0) \tSSID: HomeNet \tfreq: 5180 \tRX: 123456 bytes (789 packets) \tTX: 23456 bytes (234 packets) \tsignal: -55 dBm \trx bitrate: 866.7 MBit/s VHT-MCS 9 80MHz short GI VHT-NSS 2 \ttx bitrate: 780.0 MBit/s VHT-MCS 8 80MHz short GI VHT-NSS 2 \tbss flags:\tshort-slot-time \tdtim period:\t1 \tbeacon int:\t100 """ def test_parse_iw_link(): w = cd.parse_iw_link(IW_LINK) assert w.connected and w.ssid == "HomeNet" assert w.channel == 36 and w.band_ghz == 5.0 assert w.rssi_dbm == -55.0 and w.signal_pct == 90 assert w.rx_mbps == 866.7 and w.tx_mbps == 780.0 and w.phy == "802.11ac" assert not cd.parse_iw_link("Not connected.\n").connected ht = cd.parse_iw_link("Connected to x (on w)\n\tSSID: n\n\tfreq: 2437\n\ttx bitrate: 72.2 MBit/s MCS 7 short GI\n") assert ht.phy == "802.11n" and ht.channel == 6 and ht.band_ghz == 2.4 def test_parse_proc_net_wireless(): text = ("Inter-| sta-| Quality | Discarded packets | Missed | WE\n" " face | tus | link level noise | nwid crypt frag retry misc | beacon | 22\n" " wlan0: 0000 60. -50. -256 0 0 0 0 0 0\n") w = cd.parse_proc_net_wireless(text, "wlan0") assert w.connected and w.rssi_dbm == -50.0 and w.signal_pct == 100 assert not cd.parse_proc_net_wireless(text, "wlan1").connected def test_parse_system_profiler(): data = {"SPAirPortDataType": [{"spairport_airport_interfaces": [{ "_name": "en0", "spairport_current_network_information": { "_name": "HomeNet", "spairport_network_channel": "44 (5GHz, 80MHz)", "spairport_network_phymode": "802.11ax", "spairport_network_rate": 1200, "spairport_signal_noise": "-52 dBm / -92 dBm", }}]}]} w = cd.parse_system_profiler_airport(data) assert w.connected and w.ssid == "HomeNet" and w.channel == 44 and w.band_ghz == 5.0 assert w.phy == "802.11ax" and w.rx_mbps == 1200 and w.rssi_dbm == -52.0 assert not cd.parse_system_profiler_airport({}).connected def test_channel_and_rssi_helpers(): assert cd.channel_from_freq_mhz(2412) == (1, 2.4) assert cd.channel_from_freq_mhz(2484) == (14, 2.4) assert cd.channel_from_freq_mhz(5745) == (149, 5.0) assert cd.channel_from_freq_mhz(5955) == (1, 6.0) assert cd.channel_from_freq_mhz(1000) == (None, None) assert cd.rssi_from_quality(100) == -50.0 and cd.rssi_from_quality(0) == -100.0 assert cd.quality_from_rssi(-75) == 50 and cd.quality_from_rssi(-120) == 0 assert cd.band_from_channel(11) == 2.4 and cd.band_from_channel(100) == 5.0 # --------------------------------------------------------------------------- # # throughput tool output # --------------------------------------------------------------------------- # def test_parse_ookla_json(): data = {"type": "result", "ping": {"jitter": 0.6, "latency": 9.5}, "download": {"bandwidth": 58231421, "latency": {"iqm": 21.3}}, "upload": {"bandwidth": 2500000, "latency": {"iqm": 45.0}}, "server": {"id": 1234, "name": "Example ISP", "location": "Springfield"}} r = cd.parse_ookla_json(data) assert r["download_mbps"] == pytest.approx(465.85, abs=0.01) assert r["upload_mbps"] == 20.0 assert r["speedtest_ping_ms"] == 9.5 assert r["download_loaded_latency_ms"] == 21.3 and r["upload_loaded_latency_ms"] == 45.0 assert r["speedtest_server_id"] == 1234 and r["speedtest_server"] == "Example ISP, Springfield" class _FakeResults: ping = 1800000.0 server = {"id": 42, "sponsor": "Example ISP", "name": "Springfield"} class _FakeSpeedtest: def __init__(self, secure=True): self.results = _FakeResults() def get_servers(self, ids): pass def get_best_server(self): pass def download(self): return 120e6 def upload(self, pre_allocate=False): return 20e6 def test_speedtest_cli_failed_latency_probe(monkeypatch): import sys import types module = types.ModuleType("speedtest") module.Speedtest = _FakeSpeedtest monkeypatch.setitem(sys.modules, "speedtest", module) monkeypatch.setattr(cd, "_ookla_cli_path", lambda: None) out = cd.run_speedtest() assert out["download_mbps"] == 120.0 and out["upload_mbps"] == 20.0 assert "speedtest_ping_ms" not in out assert out["error"] == "speedtest-cli: server latency probe failed" assert out["speedtest_server"] == "Example ISP, Springfield" _FakeResults.ping = 23.4 out = cd.run_speedtest() assert out["speedtest_ping_ms"] == 23.4 and "error" not in out def test_iperf_json_parsing(monkeypatch): payload = {"end": {"sum_sent": {"bits_per_second": 9.4e8, "retransmits": 12}, "sum_received": {"bits_per_second": 9.38e8}}} monkeypatch.setattr(cd.shutil, "which", lambda name: "/usr/bin/iperf3") monkeypatch.setattr(cd, "run_cmd", lambda *a, **k: (0, json.dumps(payload))) assert cd.run_iperf3("10.0.0.2", 5201, 10, False) == {"lan_throughput_mbps": 938.0, "lan_retransmits": 12} monkeypatch.setattr(cd, "run_cmd", lambda *a, **k: (1, json.dumps({"error": "unable to connect"}))) assert "unable to connect" in cd.run_iperf3("10.0.0.2", 5201, 10, False)["error"] # --------------------------------------------------------------------------- # # configuration helpers # --------------------------------------------------------------------------- # def test_parse_duration(): assert cd.parse_duration("90") == 90 assert cd.parse_duration("30s") == 30 assert cd.parse_duration("1.5h") == 5400 assert cd.parse_duration("7d") == 7 * 86400 with pytest.raises(Exception): cd.parse_duration("1w") def test_human_duration(): assert cd.human_duration(0) == "0s" assert cd.human_duration(90) == "1m 30s" assert cd.human_duration(7 * 86400 + 3600) == "7d 1h" def test_sanitize_label(): assert cd.sanitize_label(" laptop wifi/5G ") == "laptop-wifi-5G" assert cd.sanitize_label("") == "" def test_csv_fields_match_dataclass(): assert cd.CSV_FIELDS[0] == "run_id" and cd.CSV_FIELDS[-1] == "notes" assert len(cd.CSV_FIELDS) == len(set(cd.CSV_FIELDS)) for key in cd.SUMMARY_KEYS: assert key in cd.CSV_FIELDS