@tommymynnson/lotide/test/letterPositionsTest.js

A mini clone of the [Lodash](https://lodash.com) library.

const assert = require('chai').assert;
const letterPositions = require('../letterPositions');

describe('#letterPositions', () => {
  it('should return { l: [0], i: [1, 11], g: [2], h: [3, 5, 15, 18], t: [4, 14], o: [6, 19], u: [7, 20], s: [8, 21], e: [9, 16, 22], n: [12] } for \'lighthouse in the house\'', () => {
    const expected = {
      l: [0],
      i: [1, 11],
      g: [2],
      h: [3, 5, 15, 18],
      t: [4, 14],
      o: [6, 19],
      u: [7, 20],
      s: [8, 21],
      e: [9, 16, 22],
      n: [12]
    };

    assert.deepEqual(letterPositions('lighthouse in the house'), expected);
  });
});