public function testRemoveNonExistingBottleFromTheCrate()
 {
     $this->bottleCrate->removeBottle(new Iterator\Bottle('Coca Cola', 'Soda'));
     $this->assertEquals(3, $this->bottleCrate->getCount());
 }
 public function isDone()
 {
     return $this->index >= $this->bottleCrate->getCount();
 }