linx-simulator2/node_modules/lame/test/decoder.js

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2019-09-18 08:11:16 +00:00
var fs = require('fs');
var path = require('path');
var lame = require('../');
var assert = require('assert');
var fixtures = path.resolve(__dirname, 'fixtures');
var outputName = path.resolve(__dirname, 'output.wav');
describe('Decoder', function () {
describe('pipershut_lo.mp3', function () {
var title = 'The Burning of the Piper\'s Hut';
var artist = 'Tony Cuffe & Billy Jackson';
var album = 'Sae Will We Yet';
var year = '2003';
var comment = 'sample of full track';
var trackNumber = 8;
var genre = 88;
var filename = path.resolve(fixtures, 'pipershut_lo.mp3');
it('should emit "readable" events', function (done) {
var file = fs.createReadStream(filename);
var output = fs.createWriteStream(outputName);
var count = 0;
var decoder = new lame.Decoder();
decoder.on('readable', function () {
count++;
});
decoder.on('finish', function () {
assert(count > 0);
fs.unlinkSync(outputName);
done();
});
file.pipe(decoder).pipe(output);
});
it('should emit a single "format" event', function (done) {
var file = fs.createReadStream(filename);
var decoder = new lame.Decoder();
decoder.on('format', function (format) {
assert(format);
done();
});
file.pipe(decoder);
});
it('should emit a single "finish" event', function (done) {
var file = fs.createReadStream(filename);
var output = fs.createWriteStream(outputName);
var decoder = new lame.Decoder();
decoder.on('finish', done);
file.pipe(decoder).pipe(output);
});
it('should emit a single "end" event', function (done) {
var file = fs.createReadStream(filename);
var output = fs.createWriteStream(outputName);
var decoder = new lame.Decoder();
decoder.on('end', function () {
fs.unlinkSync(outputName);
done();
});
file.pipe(decoder).pipe(output);
});
it('should emit a single "id3v1" event', function (done) {
var file = fs.createReadStream(filename);
var decoder = new lame.Decoder();
decoder.on('id3v1', function (id3) {
assert.equal(title, id3.title);
assert.equal(artist, id3.artist);
assert.equal(album, id3.album);
assert.equal(year, id3.year);
assert.equal(comment, id3.comment);
assert.equal(trackNumber, id3.trackNumber);
assert.equal(genre, id3.genre);
done();
});
file.pipe(decoder);
// enable "flow"
decoder.resume();
});
it('should emit a single "id3v2" event', function (done) {
var file = fs.createReadStream(filename);
var decoder = new lame.Decoder();
decoder.on('id3v2', function (id3) {
assert.equal(title, id3.title);
assert.equal(artist, id3.artist);
assert.equal(album, id3.album);
assert.equal(year, id3.year);
assert.equal(comment, id3.comment);
done();
});
file.pipe(decoder);
// enable "flow"
decoder.resume();
});
});
});