2-powloop.test

({
  name: 'pow',
  length: [110, 140],
  cases: [
    [2, 1, 2],
    [2, 2, 4],
    [2, 3, 8],
    [2, 10, 1024]
  ],
  test(pow) {
    const src = pow.toString();
    if (src.includes('pow(')) throw new Error('Do not use recursion');
    if (!src.includes('return')) throw new Error('Use return');
   }
})