public void AddSpell(Item Spell)
        {
            int    expectedWizardAttack  = 20;
            int    expectedWizardDefense = 5;
            Wizard wizardWithBook        = new Wizard(100, "TheBook'sWizard");
            Item   spell1 = new Item("spell1", 20, 5);

            wizardWithBook.AddSpell(spell1);
            Assert.AreEqual(expectedWizardAttack, wizardWithBook.GetCharacterAttack());
            Assert.AreEqual(expectedWizardDefense, wizardWithBook.GetCharacterDefense());
        }