Card assigned to member added to list with one card

gistfile1.txt

function cardAssignedToMemberAddedToListWithOneCard(notification)
{

 //is added to the list "List Name"
 var added = new Notification(notification).addedCard(/List Name/i);
 
  //"if a card assigned to "member's name"
 try
 {
  added.member("username");
  //AND the number of cards in "List Name" is exactly equal to 1 then ... 
  if(added.currentList().countCards() == 1)
  {
    added.postComment("So lonely ... ");
  }
 }
 
 catch(e)
 {
  Notification.expectException(InvalidDataException,e);
 }
}