Master MCP Server

import '../setup/test-setup.js' import test from 'node:test' import assert from 'node:assert/strict' import { MetricRegistry, HealthCheckRegistry, monitorEventLoopLag } from '../../src/utils/monitoring.js' test('MetricRegistry counters/gauges/histograms', () => { const R = new MetricRegistry() R.counter('c').inc() R.gauge('g').set(5) R.histogram('h').observe(0.02) const snap = R.list() assert.equal(snap.counters.c, 1) assert.equal(snap.gauges.g, 5) assert.ok(Array.isArray(snap.histograms.h.counts)) }) test('HealthCheckRegistry aggregates ok/degraded', async () => { const H = new HealthCheckRegistry() H.register('ok', async () => ({ ok: true })) H.register('bad', async () => ({ ok: false, info: 'x' })) const res = await H.run() assert.equal(res.status, 'degraded') }) test('monitorEventLoopLag provides callback and stopper', async () => { let called = 0 const stop = monitorEventLoopLag(() => { called++ }, 5) await new Promise((r) => setTimeout(r, 20)) stop() assert.ok(called >= 1) })