public void getWarehousesByCoordinate_retrievewarehouse_itemretrieved() { // arrange InMemoryWarehouseRepository inmemorywarehouserepository = new InMemoryWarehouseRepository(); inmemorywarehouserepository.Add(new Warehouse(1, 10, 10)); inmemorywarehouserepository.Add(new Warehouse(2, 15, 20)); // act List<Warehouse> warehouselist = inmemorywarehouserepository.getWarehousesByCoordinate(15, 20); // assert Assert.AreEqual(warehouselist.Count, 1); Assert.AreEqual(warehouselist[0].Warehouseid, 2); }