@gleaner/tracker/__tests__/utils.js

A JavaScript tracking library with ecommerce support

import * as utils from '../src/utils'

describe('utils', () => {

  describe('keyBy', () => {

    var array = [
      { dir: 'left', code: 97 },
      { dir: 'right', code: 100 }
    ];

    const expected = {
      left: { dir: 'left', code: 97 },
      right: { dir: 'right', code: 100 }
    }

    test('should unwrap array to object by key', () => {
      let actual = utils.keyBy(array, 'dir');
      expect(actual).toEqual(expected);
    });
  });

  describe("mapValue", () => {

    const users = {
      'fred':    { 'user': 'fred',    'age': 40 },
      'pebbles': { 'user': 'pebbles', 'age': 1 }
    };

    test('should replace object value with new', () => {
      
      const actual = utils.mapValues(users, 'age');

      const expected = { 'fred': 40, 'pebbles': 1 };

      expect(actual).toEqual(expected);
    });
  })


});