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electron/audio-output.test.ts

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+import assert from 'node:assert/strict'
+import { test } from 'node:test'
+import { AudioOutput } from './audio-output.js'
+import { parseWindowPreferences } from './window-settings.js'
+
+const devices = [{ id: 'hdmi', label: 'HDMI' }, { id: 'usb', label: 'USB' }]
+test('выбор сохраняется, применяется до запуска проигрывания и проверяет устройство', async () => {
+  const applied: string[] = []
+  const saved: string[] = []
+  const output = new AudioOutput('', async () => devices, async (id) => { applied.push(id) }, (id) => { saved.push(id) })
+  await output.refresh()
+  await output.select('hdmi')
+  await output.prepare(async (id) => { applied.push(`prepare:${id}`) })
+  assert.deepEqual(applied, ['hdmi', 'prepare:hdmi'])
+  assert.deepEqual(saved, ['hdmi'])
+  assert.equal(output.selected, 'hdmi')
+  await assert.rejects(output.select('missing'), /недоступно/)
+  await assert.rejects(output.select({ id: 'usb' }), /недоступно/)
+  assert.equal(output.selected, 'hdmi')
+})
+
+test('ошибка переключения или сохранения возвращает прежний выход', async () => {
+  for (const failure of ['apply', 'save']) {
+    const applied: string[] = []
+    const output = new AudioOutput('hdmi', async () => devices, async (id) => {
+      applied.push(id)
+      if (id === 'usb' && failure === 'apply') throw new Error('switch failed')
+    }, () => { if (failure === 'save') throw new Error('save failed') })
+    await output.refresh()
+    await assert.rejects(output.select('usb'), /failed/)
+    assert.equal(output.selected, 'hdmi')
+    assert.deepEqual(applied, ['usb', 'hdmi'])
+  }
+})
+
+test('отключение устройства сбрасывает выбор, повторное подключение не меняет его', async () => {
+  let available = devices
+  const saved: string[] = []
+  const output = new AudioOutput('hdmi', async () => available, async () => {}, (id) => { saved.push(id) })
+  await output.refresh()
+  assert.equal(output.selected, 'hdmi')
+  available = []
+  await output.refresh()
+  assert.equal(output.selected, '')
+  assert.match(output.notice, /отключено/)
+  assert.deepEqual(saved, [''])
+  available = devices
+  await output.refresh()
+  assert.equal(output.selected, '')
+  await output.select('usb')
+  assert.equal(output.notice, '')
+})
+
+test('быстрые переключения и подготовка нового окна выполняются по порядку', async () => {
+  const calls: string[] = []
+  let release: () => void = () => {}
+  const held = new Promise<void>((resolve) => { release = resolve })
+  const output = new AudioOutput('', async () => devices, async (id) => {
+    calls.push(id)
+    if (id === 'hdmi') await held
+  }, () => {})
+  await output.refresh()
+  const first = output.select('hdmi')
+  const second = output.select('usb')
+  const prepare = output.prepare(async (id) => { calls.push(`prepare:${id}`) })
+  await Promise.resolve()
+  assert.deepEqual(calls, ['hdmi'])
+  release()
+  await Promise.all([first, second, prepare])
+  assert.deepEqual(calls, ['hdmi', 'usb', 'prepare:usb'])
+})
+
+test('старые настройки совместимы, выбранный аудиовыход читается и валидируется', () => {
+  const old = { version: 1, control: null, display: null }
+  assert.equal(parseWindowPreferences(old).audioOutput, undefined)
+  assert.equal(parseWindowPreferences({ ...old, audioOutput: 'hdmi' }).audioOutput, 'hdmi')
+  assert.throws(() => parseWindowPreferences({ ...old, audioOutput: 123 }))
+  assert.throws(() => parseWindowPreferences({ ...old, audioOutput: 'a'.repeat(1025) }))
+})