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jason5ng32andClaude Fable 5
11b6ed81a3
Raw mtr text was hard to scan and useless on mobile. Parse each probe's output (header-driven column mapping, tolerant of differing mtr builds) and render a compact table: adaptive Host/IP/ASN identity columns plus whatever numeric columns the data carries; falls back to the raw text when nothing is parseable. Table headers localized in all four locales. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
91 lines
3.9 KiB
JavaScript
91 lines
3.9 KiB
JavaScript
// Exercises the MTR raw-output parser that structures Globalping MTR text
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// into report-schema hop objects. Fixtures cover the Globalping column set,
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// the classic mtr --report layout, unresolved hops, and garbage input.
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import assert from 'node:assert/strict';
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import { describe, it } from 'node:test';
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import { parseMtrOutput } from '../frontend/utils/mtr-parse.js';
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// Globalping-style output: Loss% Drop Rcv Avg StDev Javg columns, AS-number
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// prefixes, hostname (ip) pairs, and an unresolved hop.
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const GLOBALPING_OUTPUT = `Host Loss% Drop Rcv Avg StDev Javg
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1. AS??? _gateway (172.17.0.1) 0.0% 0 3 0.3 0.0 0.3
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2. AS??? (waiting for reply) 100.0% 3 0 0.0 0.0 0.0
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3. AS24940 core1.fsn1.hetzner.com (88.198.0.1) 0.0% 0 3 1.2 0.1 1.4
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4. AS15169 dns.google (8.8.8.8) 0.0% 0 3 5.6 0.2 5.8`;
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// Classic `mtr --report` layout: HOST: header with Snt/Last/Best/Wrst/StDev.
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const CLASSIC_OUTPUT = `HOST: probe-host Loss% Snt Last Avg Best Wrst StDev
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1.|-- 192.168.1.1 0.0% 10 0.4 0.4 0.3 0.5 0.0
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2.|-- 10.0.0.1 0.0% 10 1.1 1.3 1.0 2.2 0.4
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3.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0`;
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describe('parseMtrOutput', () => {
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it('parses Globalping-style output with AS numbers and host (ip) pairs', () => {
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const hops = parseMtrOutput(GLOBALPING_OUTPUT);
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assert.equal(hops.length, 4);
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assert.deepEqual(hops[0], {
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n: 1, asn: null, host: '_gateway', ip: '172.17.0.1',
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lossPct: 0, drop: 0, rcv: 3, avgMs: 0.3, stdevMs: 0, javgMs: 0.3,
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});
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// Unresolved hop: no host/ip, 100% loss preserved.
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assert.equal(hops[1].n, 2);
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assert.equal(hops[1].host, undefined);
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assert.equal(hops[1].ip, undefined);
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assert.equal(hops[1].lossPct, 100);
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assert.equal(hops[2].asn, 24940);
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assert.equal(hops[2].host, 'core1.fsn1.hetzner.com');
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assert.equal(hops[2].ip, '88.198.0.1');
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assert.equal(hops[3].asn, 15169);
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assert.equal(hops[3].ip, '8.8.8.8');
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assert.equal(hops[3].avgMs, 5.6);
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});
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it('parses classic mtr --report output with |-- markers', () => {
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const hops = parseMtrOutput(CLASSIC_OUTPUT);
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assert.equal(hops.length, 3);
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// Bare-IP hops land in `ip`, not `host`.
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assert.equal(hops[0].ip, '192.168.1.1');
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assert.equal(hops[0].host, undefined);
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assert.equal(hops[0].sntCount, 10);
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assert.equal(hops[0].lastMs, 0.4);
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assert.equal(hops[0].bestMs, 0.3);
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assert.equal(hops[0].worstMs, 0.5);
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// '???' hop keeps stats but no host/ip.
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assert.equal(hops[2].host, undefined);
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assert.equal(hops[2].ip, undefined);
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assert.equal(hops[2].lossPct, 100);
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});
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it('skips duplicate hop indexes (alternate-path lines)', () => {
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const output = `Host Loss% Drop Rcv Avg StDev Javg
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1. AS100 a.example (1.1.1.1) 0.0% 0 3 1.0 0.0 1.0
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1. AS200 b.example (2.2.2.2) 0.0% 0 3 2.0 0.0 2.0`;
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const hops = parseMtrOutput(output);
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assert.equal(hops.length, 1);
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assert.equal(hops[0].ip, '1.1.1.1');
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});
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it('returns [] for garbage, empty and non-string input', () => {
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assert.deepEqual(parseMtrOutput(''), []);
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assert.deepEqual(parseMtrOutput('no hops here\njust text'), []);
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assert.deepEqual(parseMtrOutput(null), []);
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assert.deepEqual(parseMtrOutput(undefined), []);
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assert.deepEqual(parseMtrOutput(12345), []);
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});
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it('tolerates missing header by keeping host/ip and dropping stats', () => {
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const hops = parseMtrOutput(' 1. AS15169 dns.google (8.8.8.8) 0.0% 0 3 5.6 0.2 5.8');
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assert.equal(hops.length, 1);
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assert.equal(hops[0].ip, '8.8.8.8');
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assert.equal(hops[0].avgMs, undefined);
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});
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});
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