uiv/src/utils/array.utils.spec.js

Bootstrap 3 components implemented by Vue.

import * as utils from './array.utils';

describe('array.utils', () => {
  describe('#spliceIfExist', () => {
    it('should be able to handle non array object', () => {
      const test = null;
      utils.spliceIfExist(test, undefined);
      expect(test).toBeNull();
    });

    it('should be able to handle non in array object', () => {
      const arr = [0, 1, 2];
      utils.spliceIfExist(arr, 3);
      expect(arr.length).toEqual(3);
      expect(arr[0]).toEqual(0);
      expect(arr[1]).toEqual(1);
      expect(arr[2]).toEqual(2);
    });

    it('should be able to splice if exist', () => {
      const arr = [0, 1, 2];
      utils.spliceIfExist(arr, 1);
      expect(arr.length).toEqual(2);
      expect(arr[0]).toEqual(0);
      expect(arr[1]).toEqual(2);
    });
  });

  describe('#range', () => {
    it('should be able to get range array', () => {
      const b = utils.range(5);
      expect(b).toEqual([0, 1, 2, 3, 4]);
    });

    it('should be able to get range array with start', () => {
      const b = utils.range(5, 3, 1);
      expect(b).toEqual([3, 4]);
    });

    it('should be able to get range array with step', () => {
      const b = utils.range(5, 0, 2);
      expect(b).toEqual([0, 2, 4]);
    });
  });

  describe('#onlyUnique', () => {
    it('should be able to uniq array', () => {
      const b = [0, 1, 2, 3, 3, 4, 4, 5].filter(utils.onlyUnique);
      expect(b).toEqual([0, 1, 2, 3, 4, 5]);
    });
  });
});