Storage extends Observable { public int getLevel() { return this.currentLevel; } Storage(); int addItem(SimpleResource item); int getQuantity(SimpleResource item); ArrayList<SimpleResource> getList(); SimpleResource takeItem(SimpleResource item, int quantity); int getSize(); int getLevel(); void setLevel(int level); int removeItem(SimpleResource item, int quantity); boolean containsItem(SimpleResource item); void swapItem(int position1, int position2); int trackAdd(SimpleResource item); int trackRemove(SimpleResource item);  }
@Test public void initialTest() { Storage storage = new Storage(); assertEquals(storage.getLevel(), 20); }