JSTests/ChakraCore/test/TTBasic/typedArray.js

//-------------------------------------------------------------------------------------------------------
// Copyright (C) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
//-------------------------------------------------------------------------------------------------------

var bx = new ArrayBuffer(16);
var by = bx;

var bz = new ArrayBuffer(16);

var viewx = new Int32Array(bx);
var viewy = new Int8Array(by, 4, 12);

var viewz = new Float32Array(bz);

for(var i = 0; i < viewx.length; ++i) 
{
    viewx[i] = i + 1;
}

for(var i = 0; i < viewz.length; ++i) 
{
    viewz[i] = i / 2.0;
}

WScript.SetTimeout(testFunction, 50);

/////////////////

function testFunction()
{
    telemetryLog(`viewx.length: ${viewx.length}`, true); //4
    telemetryLog(`viewy.length: ${viewy.length}`, true); //12
    telemetryLog(`bx === by: ${bx === by}`, true); //true
    telemetryLog(`viewx.buffer === viewy.buffer: ${viewx.buffer === viewy.buffer}`, true); //true

    var allokx = true;
    for(var i = 0; i < viewx.length; ++i) 
    {
        allokx = allokx && (viewx[i] === i + 1);
    }
    telemetryLog(`allokx: ${allokx}`, true); //true

    telemetryLog(`viewz.length: ${viewz.length}`, true); //4

    var allokz = true;
    for(var i = 0; i < viewz.length; ++i) 
    {
        allokz = allokz && (viewz[i] === i / 2.0);
    }
    telemetryLog(`allokz: ${allokz}`, true); //true

    ////
    viewx[1] = 0;
    ////

    telemetryLog(`viewy[0]: ${viewy[0]}`, true); //0
    telemetryLog(`viewy[1]: ${viewy[1]}`, true); //0
    telemetryLog(`viewy[2]: ${viewy[2]}`, true); //0
    telemetryLog(`viewy[3]: ${viewy[3]}`, true); //0

    ////
    viewz[0] = 0.5;
    ////

    telemetryLog(`viewz[0]: ${viewz[0]}`, true); //0.5
}