rochars / byte-data

var assert = require('assert');

describe('24-bit from bytes', function() {

    let byteData = require('../../index.js');

    it('should turn 6 bytes to 2 24-bit ints', function() {

        assert.deepEqual(byteData.fromBytes(

            [0,0,0,0,0,0], 24, {"base": 10, "signed": false}),

            [0,0]);

    });

    it('should turn 6 bytes bin to 2 24-bit ints (max range)', function() {

        assert.deepEqual(byteData.fromBytes(

            ["00000000","00000000","10000000","11111111","11111111","01111111"],

            24, {"base": 2, "signed": true}),

            [-8388608, 8388607]);

    });

    it('should turn 6 bytes bin to 2 24-bit uInts (max range)', function() {

        assert.deepEqual(byteData.fromBytes(

            ["00000000","00000000","00000000","11111111","11111111","11111111"],

            24, {"base": 2, "signed": false}),

            [0,16777215]);

    });

    it('should turn 7 bytes bin to 2 24-bit uInts (ignore the extra byte) (max range)', function() {

        assert.deepEqual(byteData.fromBytes(

            ["00000000","00000000","00000000","11111111","11111111","11111111","11111111"],

            24, {"base": 2, "signed": false}),

            [0,16777215]);

    });

    it('should turn 2 bytes bin to 0 24-bit uInts (not enough bytes)', function() {

        assert.deepEqual(byteData.fromBytes(

            ["11111111","11111111"], 

            24, {"base": 2, "signed": false}),

            []);

    });

    it('should turn 6 bytes hex to 2 24-bit ints (max range)', function() {

        assert.deepEqual(byteData.fromBytes(

            ["0","0","80", "ff","ff","7f"], 

            24, {"base": 16, "signed": true}),

            [-8388608, 8388607]);

    });

    it('should turn 6 bytes hex to 2 24-bit uInts (max range)', function() {

        assert.deepEqual(byteData.fromBytes(

            ["0","0","0","ff","ff","ff"],

            24, {"base": 16, "signed": false}),

            [0,16777215]);

    });

});