public void Test_Add_AddsItemToInventory() { //Arrange NPC testNPC = new NPC("Orc"); testNPC.Save(); Item testItem = new Item("Sword"); testItem.Save(); Item testItem2 = new Item("Torch"); testItem2.Save(); //Act testNPC.AddItemToNPC(testItem); testNPC.AddItemToNPC(testItem2); List <Item> result = testNPC.GetItems(); List <Item> testList = new List <Item> { testItem, testItem2 }; //Assert CollectionAssert.AreEqual(testList, result); }