castArray.test.js

import assert from 'assert';
import lodashStable from 'lodash';
import { falsey } from './utils.js';
import castArray from '../castArray.js';

describe('castArray', function() {
  it('should wrap non-array items in an array', function() {
    var values = falsey.concat(true, 1, 'a', { 'a': 1 }),
        expected = lodashStable.map(values, function(value) { return [value]; }),
        actual = lodashStable.map(values, castArray);

    assert.deepStrictEqual(actual, expected);
  });

  it('should return array values by reference', function() {
    var array = [1];
    assert.strictEqual(castArray(array), array);
  });

  it('should return an empty array when no arguments are given', function() {
    assert.deepStrictEqual(castArray(), []);
  });
});