rochars / wavefile

 * Copyright (c) 2017 Rafael da Silva Rocha.

 * 

 */

describe("32-bit PCM reading", function() {

    let fs = require("fs");

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

    let path = "test/files/";

    let wBytes = fs.readFileSync(path + "32bit-48kHz-noBext-mono.wav");

    let wav = new wavefile.WaveFile(wBytes);

    it("chunkId should be 'RIFF'",

            function() {

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

    });

    it("subChunk1Id should be 'fmt '",

            function() {

        assert.equal(wav.subChunk1Id, "fmt ");

    });

    it("format should be 'WAVE'",

            function() {

        assert.equal(wav.subChunk1Size, 16);

    });

    it("audioFormat should be 1 (PCM)",

            function() {

        assert.equal(wav.audioFormat, 1);

    });

    it("numChannels should be 1",

            function() {

        assert.equal(wav.numChannels, 1);

    });

    it("sampleRate should be 48000",

            function() {

        assert.equal(wav.sampleRate, 48000);

    });

    it("byteRate should be 192000",

            function() {

        assert.equal(wav.byteRate, 192000);

    });

    it("blockAlign should be 4",

            function() {

        assert.equal(wav.blockAlign, 4);

    });

    it("bitsPerSample should be 32",

            function() {

        assert.equal(wav.bitsPerSample, 32);

    });

    it("subChunk2Id should be 'data'",

            function() {

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

    });

    it("subChunk2Size should be > 0",

            function() {

        assert.ok(wav.subChunk2Size > 0);

    });

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

            function() {

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

    });

});