gistfile1.txt

describe("calculate Bill With Energy Cost Increase", function(){
  it("with an average monthly bill $300 and energy cost increase rate of 5% your monthly bill for year 2 should be $315/mo", function(){ 
    expect(calculateBillWithEnergyCostIncrease(300,0.05)).toEqual(315);
  });
});

describe("bill iterator. This is the function that calculates for 5 and ten years.", function(){
  it("with an average monthly bill $300 and energy cost increase rate of 5%/yr your monthly bill for year 3 should be $330.75/mo", function(){ 
    expect(billIncludeRate(0.05,300,3)).toEqual(330.75);
    
  
  });
});

//calculate at 5 and 10 functions.
function calculateBillWithEnergyCostIncrease(bill,rate){
  return (bill*rate)+bill
}

function billIncludeRate(rate,billNow,noOfYears){
  
  var stopCase = noOfYears -2;
  var i=0;
  var averageMonthlyBill = billNow;
  for (i=0;i<=stopCase;i++)
  {
   var iterateBill = calculateBillWithEnergyCostIncrease(averageMonthlyBill,rate);
   averageMonthlyBill = iterateBill;
  }
  //ends the for loop
  return averageMonthlyBill;
}



describe("bill iterator. This is the function that calculates for 5 and ten years.", function(){
  it("with an average monthly bill $300 and energy cost increase rate of 5%/yr your monthly bill for year 4 should be $337.2875/mo", function(){ 
    expect(billIncludeRate(0.05,300,4)).toEqual(347.2875);
  });


});


describe("bill iterator. This is the function that calculates for 5 and ten years.", function(){
  it("with an average monthly bill $300 and energy cost increase rate of 5%/yr your monthly bill for year 5 should be $364.651875/mo", function(){ 
    expect(billIncludeRate(0.05,300,5)).toEqual(364.651875);
  });


});