test(refactor): [BASE-03] capture media and lifecycle behavior

refactor/scripts/lifecycle.test.mjs

@@ -0,0 +1,31 @@
+import assert from 'node:assert/strict'
+import { test } from 'node:test'
+import { lifecycleProfile, validateLifecycleReport, verifyFrozenLifecycle } from './lifecycle.mjs'
+
+test('lifecycle evidence rejects fake progress, unexpected errors and event reordering', () => {
+  const { report } = verifyFrozenLifecycle()
+  const stopped = structuredClone(report)
+  stopped.observations.playback.progressed = stopped.observations.playback.start
+  assert.throws(() => validateLifecycleReport(stopped), /No real-media advancement/)
+  const error = structuredClone(report)
+  error.unhandled.push('unexpected error')
+  assert.throws(() => validateLifecycleReport(error), /Unexpected unhandled/)
+  const reordered = structuredClone(report)
+  const phase = reordered.trace.filter(item => item.phase === 'play')
+  const native = phase.find(item => item.event === 'video:playing')
+  const publicEvent = phase.find(item => item.event === 'play')
+  native.event = 'play'
+  publicEvent.event = 'video:playing'
+  assert.throws(() => validateLifecycleReport(reordered), /Unexpected play order/)
+})
+
+test('lifecycle profile ignores media clock jitter but retains lifecycle findings', () => {
+  const { report } = verifyFrozenLifecycle()
+  const jitter = structuredClone(report)
+  jitter.observations.playback.progressed += 0.03
+  jitter.observations.pause.observedMs += 10
+  assert.deepEqual(lifecycleProfile(jitter), lifecycleProfile(report))
+  const changed = structuredClone(report)
+  changed.observations.repeatedDestroy.survivorAfter = true
+  assert.notDeepEqual(lifecycleProfile(changed), lifecycleProfile(report))
+})