deep-copy-diagnostics/Tests/05-test-views.js

Ultra-fast definitive testing for deep copies and deep copy algorithms

const {deepEquivalent} = require("../deep-equivalent.js")

function claim(b, message)
{
    if(b) console.log(`\u2713 ${message} is true`)
    else console.log(`\u2639  ${message} is false: should be true`)
    console.log(deepEquivalent.message)
}

console.log('-----------------------------------------------------------------');
function test_1()
{
    console.log("Test 1");
    const source_v8 = new Uint8Array([10,20,30]);
    const source_view = new DataView(source_v8.buffer)

    const target_v8 = new Uint8Array([10,20,30]);
    const target_view = new DataView(target_v8.buffer)

    claim(deepEquivalent(source_view, target_view), 'deepEquivalent(source_view, target_view)')
}

test_1()

console.log('-----------------------------------------------------------------');
function test_2()
{
    console.log("Test 2");
    const source = {}
    source.v8 = new Uint8Array([10,20,30]);
    source.view  = new DataView(source.v8.buffer)
    source.view2 = new DataView(source.v8.buffer)

    const target = {}
    target.v8 = new Uint8Array([10,20,30]);
    target.view = new DataView(target.v8.buffer)
    target.view2 = new DataView(source.v8.buffer)

    claim(!deepEquivalent(source, target), 'deepEquivalent(source_view, target_view)')
}

test_2()


console.log('-----------------------------------------------------------------');
function test_3()
{
    console.log("Test 3");
    const source = {}
    source.v8 = new Uint8Array([10,20,30]);
    source.view  = new DataView(source.v8.buffer)
    source.a = {b:source.v8.buffer}

    const target = {}
    target.v8 = new Uint8Array([10,20,30]);
    target.view = new DataView(target.v8.buffer)
    target.a = {b:new Uint8Array([10,20,30]).buffer}

    claim(!deepEquivalent(source, target), '!deepEquivalent(source_view, target_view)')
}

test_3()


console.log('-----------------------------------------------------------------');
function test_4()
{
    console.log("Test 4");
    const source = {}
    source.v8 = new Uint8Array([10,20,30]);
    source.a = source.v8.buffer

    const target = {}
    target.v8 = new Uint8Array([10,20,30]);
    target.a = new Uint8Array([10,20,30]).buffer

   claim(!deepEquivalent(source, target), '!deepEquivalent(source_view, target_view)')
}

test_4()