JavaScript: Экранирующие последовательности

// @ts-check

import { expect, test, vi } from 'vitest'

test('hello world', async () => {
  const consoleLogSpy = vi.spyOn(console, 'log').mockImplementation(() => { });
  await import('./index.js')

  const firstArg = consoleLogSpy.mock.calls.join('\n');

  expect(firstArg).toBe('- Did Joffrey agree?\n- He did. He also said "I love using \\n".')
})