queue#flush test

queue#flush test

test("Queue#flush should be recursive if new items are added", function() {
 expect(2);
 
 var bb = new Backburner(['one']);
 var count = 0;
 
 bb.run(function(){
  function increment() {
   if (++count < 3) {
    bb.schedule('one', increment);
   }
   
   if (count === 3) {
    bb.schedule('one', increment);
   }
  }
  
  increment();
  
  equal(count, 1, 'should not have run yet');
  
  bb.currentInstance.queues.one.flush();
  equal(count, 4, 'should have run all scheduled methods, even ones added during flush');
 });
});