Function settles

test/unit/session_composition_test.js:9–16

(promise, ms = 2000)

import { within, retryTo, hopeThat } from '../../lib/effects.js'

const settles = (promise, ms = 2000) =>
  Promise.race([
    promise,
    new Promise((_, reject) => {
      const t = setTimeout(() => reject(new Error(`did not settle within ${ms}ms`)), ms)
      t.unref?.()
    }),
  ])

// Re-reads recorder.promise() repeatedly so errors attached to trailing tasks
// (added while the chain runs) are surfaced. Returns the last error seen, or