multilang-sentiment/test/integration/async_negators.js

Multi language AFINN-based sentiment analysis for Node.js

var test = require('tap').test;
var sentiment = require('../../lib/index');

var datasetEnNeg = 'This is not cool';
var datasetItNeg = 'Questo non è bello';
var datasetEnPos = 'This is cool';
var datasetItPos = 'Questo è bello';
var dataSetItFarNeg = 'Questo non credo sia bello';
var dataSetItFarAltNeg = 'Non mi sento molto bene';

sentiment(datasetEnNeg, 'en', function (err, result) {
  test('[EN][NEG] asynchronous negators', function (t) {
    t.type(result, 'object');
    t.equal(result.score, -1);
    t.equal(result.comparative, -1.25);
    t.equal(result.tokens.length, 4);
    t.equal(result.words.length, 1);
    t.end();
  });
});

sentiment(datasetItNeg, 'it', function (err, result) {
  test('[IT][NEG] asynchronous negators', function (t) {
    t.type(result, 'object');
    t.equal(result.score, -3);
    t.equal(result.comparative, -4);
    t.equal(result.tokens.length, 3);
    t.equal(result.words.length, 1);
    t.end();
  });
});

sentiment(dataSetItFarNeg, 'it', function (err, result) {
  test('[IT][FAR NEG] asynchronous negators', function (t) {
    t.type(result, 'object');
    t.equal(result.score, -3);
    t.equal(result.comparative, -3.6);
    t.equal(result.tokens.length, 5);
    t.equal(result.words.length, 1);
    t.end();
  });
});

sentiment(dataSetItFarAltNeg, 'it', function (err, result) {
  test('[IT][FAR ALT NEG] asynchronous negators', function (t) {
    t.type(result, 'object');
    t.equal(result.score, -3);
    t.equal(result.comparative, -3.6);
    t.equal(result.tokens.length, 5);
    t.equal(result.words.length, 1);
    t.end();
  });
});

sentiment(datasetEnPos, 'en', function (err, result) {
  test('[EN][POS] asynchronous negators', function (t) {
    t.type(result, 'object');
    t.equal(result.score, 1);
    t.equal(result.comparative, 1.33);
    t.equal(result.tokens.length, 3);
    t.equal(result.words.length, 1);
    t.end();
  });
});

sentiment(datasetItPos, 'it', function (err, result) {
  test('[IT][POS] asynchronous negators', function (t) {
    t.type(result, 'object');
    t.equal(result.score, 3);
    t.equal(result.comparative, 4);
    t.equal(result.tokens.length, 3);
    t.equal(result.words.length, 1);
    t.end();
  });
});