git.squeep.com Git - urlittler/blob - test/src/slug.js

   1 /* eslint-env mocha */
   2 /* eslint-disable capitalized-comments */
   3
   4 'use strict';
   5
   6 const assert = require('assert');
   7 const sinon = require('sinon');
   8
   9 describe('slug', function () {
  10   const Slug = require('../../src/slug');
  11
  12   const maxSlugLength = 86;
  13
  14   afterEach(function () {
  15     sinon.restore();
  16   });
  17
  18   describe('newSlug', function () {
  19     it('generates a slug from seed', async function () {
  20       const seed = '';
  21       const seedSHA512b64trunc = 'z4PhNX7vuL3xVChQ1m2AB9Yg5AULVxXcg-SpIdNs6c5H0NE8XYXysP.DGNKHfuwvY7kxvUdBeoGlODJ6+SfaPg';
  22       const result = await Slug.newSlug(seed);
  23       assert.strictEqual(result, seedSHA512b64trunc);
  24     });
  25     it('generates a random slug', async function () {
  26       const result = await Slug.newSlug();
  27       assert.strictEqual(result.length, maxSlugLength);
  28     });
  29     it('only makes a slug so big', async function () {
  30       const slugLen = 222;
  31       const result = await Slug.newSlug(undefined, slugLen);
  32       assert.strictEqual(result.length, maxSlugLength);
  33     });
  34   }); // newSlug
  35
  36   describe('makeSlugGenerator', function () {
  37     it('makes a slug generator which generates a slug', async function () {
  38       const seed = '';
  39       const sg = Slug.makeSlugGenerator(seed);
  40       const { done, value } = await sg.next();
  41       assert(!done);
  42       assert.strictEqual(value.length, 5);
  43     });
  44     it('makes a slug generator which generates many slugs', async function () {
  45       const seed = '';
  46       const sg = Slug.makeSlugGenerator(seed, 5, 8);
  47
  48       const checkNext = async (expected) => {
  49         const { done, value } = await sg.next();
  50         assert(!done);
  51         assert.strictEqual(value, expected);
  52       };
  53       const checkNextLen = async (expected) => {
  54         const { done, value } = await sg.next();
  55         assert(!done);
  56         assert.strictEqual(value.length, expected);
  57       };
  58
  59       await checkNext('z4PhN');
  60       await checkNext('z4PhNX');
  61       await checkNext('z4PhNX7');
  62       await checkNext('z4PhNX7v');
  63       await checkNextLen(5);
  64       await checkNextLen(6);
  65       await checkNextLen(7);
  66       await checkNextLen(8);
  67       await checkNextLen(5);
  68       await checkNextLen(6);
  69     });
  70   }); // makeSlugGenerator
  71
  72 }); // slug