rochars / wavefile

 * Copyright (c) 2017 Rafael da Silva Rocha.

 * 

 */

describe('read 4-bit file from disk and write to new file (different APDCM source)', function() {

    let fs = require("fs");

    let wavefile = require("../index.js");

    let path = "test/files/";

    let wBytes = fs.readFileSync(path + "4-bit-imaadpcm-8kHz-noBext-mono-reaper.wav");

    let wav = new wavefile.WaveFile(wBytes);

    let wav2 = new wavefile.WaveFile(wav.toBytes());

    fs.writeFileSync(path + "/out/4-bit-imaadpcm-8kHz-noBext-mono-reaper.wav", wav2.toBytes());

    it("chunkId should be 'RIFF'",

            function() {

        assert.equal(wav2.chunkId, "RIFF");

    });

    it("subChunk1Id should be 'fmt '",

            function() {

        assert.equal(wav2.format, "WAVE");

    });

    it("subChunk1Size should be 20",

            function() {

        assert.equal(wav2.subChunk1Size, 20);

    });

    it("audioFormat should be 17 (IMA ADPCM)",

            function() {

        assert.equal(wav2.audioFormat, 17);

    });

    it("numChannels should be 1",

            function() {

        assert.equal(wav2.numChannels, 1);

    });

    it("sampleRate should be 8000",

            function() {

        assert.equal(wav2.sampleRate, 8000);

    });

    it("byteRate should be 4000",

            function() {

        assert.equal(wav2.byteRate, 4000);

    });

    it("blockAlign should be 1024",

            function() {

        assert.equal(wav2.blockAlign, 1024);

    });

    it("bitsPerSample should be 4",

            function() {

        assert.equal(wav2.bitsPerSample, 4);

    });

    it("factChunkId should be 'fact'",

            function() {

        assert.equal(wav2.factChunkId, 'fact');

    });

    it("factChunkSize should be 4",

            function() {

        assert.equal(wav2.factChunkSize, 4);

    });

    it("subChunk2Id should be 'data'",

            function() {

        assert.equal(wav2.subChunk2Id, 'data');

    });

    it("subChunk2Size should be > 0",

            function() {

        assert.ok(wav2.subChunk2Size > 0);

    });

    it("samples.length should be > 0",

            function() {

        assert.ok(wav2.samples_.length > 0);

    });

    it("samples_ on the new file should have the same length as in the original file",

            function() {

        assert.equal(wav2.samples_.length, wav.samples_.length);

    });

    it("samples_ on the new file should be same as the original file",

            function() {

        assert.deepEqual(wav2.samples_, wav.samples_);

    });

});