TDD for Autodesk Tinkercad Circuits ( git@gist.github.com:02afd475f46cd78a4607ac55765e50df.git )

bookmarklet-step.js

//javascript:(function(){ <-remember this beginning when creating bookmarklets

javascript:(function(){
var txField = document.getElementsByClassName("js-code_panel__serial__input")[0];
var sendBtn = document.getElementsByClassName("js-code_panel__serial__send")[0];
var newHash = 0;

/*step debug (use this comment style)*/
if(window.location.hash) {
    var hash = window.location.hash.substring(1);
    newHash = parseInt(hash) + 1;
    window.location.hash = newHash;
} else {
   window.location.hash = 0;
}

switch(newHash) {
    case 1:
        txField.value = "USER";
        break;
    case 2:
        txField.value = "PASS";
        break;
    case 3:
        txField.value = "USER joe";
        break;
    case 4:
        txField.value = "PASS 1234";
        break;
    default:
        window.location.hash = 0;
        break;
}
sendBtn.click();
})();

// })(); <-remember this ending when creating bookmarklets

// compiled to one line only is needed
// copy paste into browser URL bar, select that and copy paste here

//javascript: <- browser will remove this to stop unwanted javascripts pasting, add this
javascript:(function(){var txField = document.getElementsByClassName("js-code_panel__serial__input")[0];var sendBtn = document.getElementsByClassName("js-code_panel__serial__send")[0];var newHash = 0;/*step debug*/if(window.location.hash) {    var hash = window.location.hash.substring(1);    newHash = parseInt(hash) + 1;    window.location.hash = newHash;} else {   window.location.hash = 0;}switch(newHash) {    case 1:        txField.value = "USER";        break;    case 2:        txField.value = "PASS";        break;    case 3:        txField.value = "USER joe";        break;    case 4:        txField.value = "PASS 1234";        break;    default:        window.location.hash = 0;        break;}sendBtn.click();})();

tdd_tinkercad_circuits_serial.js

/*
 * Det här är ett JavaScript-kladdblock.
 */

/*
example payload

var txField = document.getElementsByClassName("js-code_panel__serial__input")[0];
txField.value = "USER joe";
txField.value = "PASS 1234";
txField.value = "CAPA";
var sendBtn = document.getElementsByClassName("js-code_panel__serial__send")[0];
sendBtn.click();

//step debug
if(window.location.hash) {
    var hash = window.location.hash.substring(1);
    var newHash = parseInt(hash) + 1;
    window.location.hash = newHash;
} else {
   window.location.hash = 0;
}

switch(newHash) {
    case "1":
        txField.value = "USER";
        break;
    case "2":
        txField.value = "PASS";
        break;
    case "2":
        txField.value = "USER joe";
        break;
    case "2":
        txField.value = "PASS 1234";
        break;
    default:
        break;
}

//auto interval send
var tdd = setInterval (payload, 10000);
clearInterval(tdd);

select, copy and paste from above*/

var payload = function () {
    window.alert();
};

var injectMe = document.createElement("button");
injectMe.id = "tinkercad_tdd";
injectMe.innerText = "TDD";
injectMe.onclick = payload;
var para = document.getElementsByClassName("code_panel__serial__buttons")[0];
var prev;
if( prev = document.getElementById("tinkercad_tdd") ){
    para.replaceChild(injectMe,prev);
} else {
    para.appendChild(injectMe);
}

/*
https://www.tinkercad.com/things/lSBseQEok0l-serialdpopper/editel
*/