SimpleTDD

This library for Code.org's AppLab tests a function to see if the actual output is the same as the expected output.

It only works on functions that input/output numbers, strings, arrays, and dictionaries. For arrays and dictionaries, it only works if they contain only numbers and strings as values. It does not work for objects or arrays with arrays, objects, or methods as values.

Import

To import this library into an AppLab project use this ID: k9lMltOxqXBqO60Qgv8VWiHwemxePHwOk-1PwJDWEeM

Syntax

SimpleTDD.test(functionCall(input1, input2, etc), expectedOutput);

Examples

function squareIt(n){
  return n*n;
}

test(squareIt(5), 25);

function sumList(myList){
  var sum = 0;
  for(var i=0; i<myList.length; i++){
    sum+=myList[i];
  }
  return sum;
}

test(sumList([1,2,3,4,5]), 15);

function adder(a, b){
  return a+b;
}

test(adder(1,2), 3);
test(adder("wh", "at"), "what");

function makeList(n){
  var myList = [];
  for(var i=1; i<n+1; i++){
    myList.push(i);
  }
  return myList;
}

test(makeList(5), [1,2,3,4,5]);

function addProp(dict, key, value){
  dict[key] = value;
  return dict;
}

test(addProp({first:"Ian"}, "last", "Ostrom"), {first:"Ian", last:"Ostrom"});

Thanks

Thank you to Don Wells for inspiring the idea for this library.