test.js

const assert = require('assert');

const sleep = require('./sleep');
const sleep2 = require('./sleep2');

describe('Day 4: Repose Record', () => {
  it('should determine sleepiest guard (strategy 1)', () => {
    const schedule =
      `[1518-11-01 00:00] Guard #10 begins shift
       [1518-11-01 00:05] falls asleep
       [1518-11-01 00:25] wakes up
       [1518-11-01 00:30] falls asleep
       [1518-11-01 00:55] wakes up
       [1518-11-01 23:58] Guard #99 begins shift
       [1518-11-02 00:40] falls asleep
       [1518-11-02 00:50] wakes up
       [1518-11-03 00:05] Guard #10 begins shift
       [1518-11-03 00:24] falls asleep
       [1518-11-03 00:29] wakes up
       [1518-11-04 00:02] Guard #99 begins shift
       [1518-11-04 00:36] falls asleep
       [1518-11-04 00:46] wakes up
       [1518-11-05 00:03] Guard #99 begins shift
       [1518-11-05 00:45] falls asleep
       [1518-11-05 00:55] wakes up`;

    assert.strictEqual(sleep(schedule), 240);
  });

  describe('Part Two', () => {
    it('should determine sleepiest guard (strategy 2)', () => {
      const schedule =
        `[1518-11-01 00:00] Guard #10 begins shift
         [1518-11-01 00:05] falls asleep
         [1518-11-01 00:25] wakes up
         [1518-11-01 00:30] falls asleep
         [1518-11-01 00:55] wakes up
         [1518-11-01 23:58] Guard #99 begins shift
         [1518-11-02 00:40] falls asleep
         [1518-11-02 00:50] wakes up
         [1518-11-03 00:05] Guard #10 begins shift
         [1518-11-03 00:24] falls asleep
         [1518-11-03 00:29] wakes up
         [1518-11-04 00:02] Guard #99 begins shift
         [1518-11-04 00:36] falls asleep
         [1518-11-04 00:46] wakes up
         [1518-11-05 00:03] Guard #99 begins shift
         [1518-11-05 00:45] falls asleep
         [1518-11-05 00:55] wakes up`;

      assert.strictEqual(sleep2(schedule), 4455);
    });
  });
});