talk/test/server/services/wordlist.js

const Errors = require('../../../errors');
const Wordlist = require('../../../services/wordlist');
const SettingsService = require('../../../services/settings');

const chai = require('chai');
const expect = chai.expect;

describe('services.Wordlist', () => {

  const wordlists = {
    banned: [
      'cookies',
      'how to do bad things',
      'how to do really bad things',
      's h i t',
      '$hit',
      'p**ch',
      'p*ch',
    ],
    suspect: [
      'do bad things',
    ]
  };

  let wordlist = new Wordlist();
  const settings = {id: '1', moderation: 'PRE', wordlist: {banned: ['bad words'], suspect: ['suspect words']}};

  beforeEach(() => SettingsService.init(settings));

  describe('#init', () => {

    before(() => wordlist.upsert(wordlists));

    it('parses the wordlists correctly', () => {
      expect(wordlist.lists.banned).to.deep.equal([
        [ 'cookies' ],
        [ 'how', 'to', 'do', 'bad', 'things' ],
        [ 'how', 'to', 'do', 'really', 'bad', 'things' ],
        [ 's', 'h', 'i', 't' ],
        [ '$hit' ],
        [ 'p**ch' ],
        [ 'p*ch' ],
      ]);
      expect(wordlist.lists.suspect).to.deep.equal([
        [ 'do', 'bad', 'things' ],
      ]);
    });

  });

  describe('#parseList', () => {
    it('does not include emojis in the wordlist', () => {
      let list = Wordlist.parseList([
        '🖕',
        '🖕 asdf',
        'asd🖕asdf',
        'asd🖕',
      ]);

      expect(list).to.have.length(0);
    });
  });

  const bannedList = Wordlist.parseList(wordlists.banned);

  describe('#match', () => {

    it('does match on a bad word', () => {
      [
        'how to do really bad things',
        'what is cookies',
        'cookies',
        'COOKIES.',
        'how to do bad things',
        'How To do bad things!',
        'This stuff is $hit!',
        'That\'s a p**ch!',
      ].forEach((word) => {
        expect(wordlist.match(bannedList, word)).to.be.true;
      });
    });

    it('does not match on a good word', () => {
      [
        'how to',
        'cookie',
        'how to be a great person?',
        'how to not do really bad things?',
        'i have $100 dollars.',
        'I have bad $ hit lling',
        'That\'s a p***ch!',
      ].forEach((word) => {
        expect(wordlist.match(bannedList, word)).to.be.false;
      });
    });

  });

  describe('#scan', () => {

    it('does match on a bad word', () => {
      [
        'how to do really bad things',
        'what is cookies',
        'cookies',
        'COOKIES.',
        'how to do bad things',
        'How To do bad things!',
        'This stuff is $hit!',
        'That\'s a p**ch!',
      ].forEach((word) => {
        expect(wordlist.scan('body', word)).to.not.be.undefined;
      });
    });

    it('does not match on a good word', () => {
      [
        'how to',
        'cookie',
        'how to be a great person?',
        'how to not do really bad things?',
        'i have $100 dollars.',
        'I have bad $ hit lling',
        'That\'s a p***ch!',
      ].forEach((word) => {
        expect(wordlist.scan('body', word)).to.be.undefined;
      });
    });

  });

  describe('#checkName', () => {
    [
      'flowers',
      'joy',
      'lots_of_candy'
    ].forEach((username) => {
      it(`does not match on list=banned name=${username}`, () => {
        expect(wordlist.checkName(bannedList, username)).to.be.true;
      });
    });

    [
      'cookies'
    ].forEach((username) => {
      it(`does match on list=banned name=${username}`, () => {
        expect(wordlist.checkName(bannedList, username)).to.be.false;
      });
    });
  });

  describe('#filter', () => {

    before(() => wordlist.upsert(wordlists));

    it('matches on bodies containing bad words', () => {
      let errors = wordlist.filter({
        content: 'how to do really bad things?'
      }, 'content');

      expect(errors).to.have.property('banned', Errors.ErrContainsProfanity);
    });

    it('does not match on bodies not containing bad words', () => {
      let errors = wordlist.filter({
        content: 'how to not do really bad things?'
      }, 'content');

      expect(errors).to.not.have.property('banned');
    });

    it('does not match on bodies not containing the bad word field', () => {
      let errors = wordlist.filter({
        author: 'how to do really bad things?',
        content: 'how to be a great person?'
      }, 'content');

      expect(errors).to.not.have.property('banned');
    });

  });

});