kSampleTests\AccountTest.cs:line 19</pre></p>

<p>That is expected behavior; the test has failed because we have not implemented the TransferFunds method yet. Now let's get it to work. Don't close the GUI and go back to your IDE and fix the code, make your TransferFunds method look like this:</p>

<div class="code"><pre class="prettyprint">public void TransferFunds(Account destination, decimal amount)
{
  destination.Deposit(amount);
  Withdraw(amount);
}</pre>
</div>

<p>Now recompile your code and click t