public void TestAddingSingularBarrel()
{
AssaultRifle testWeapon = new AssaultRifle();
testWeapon.AddBarrel(BarrelEnum.LongBarrel);
var expectedBarrel = testWeapon.GetCurrentBarrel();
Assert.AreEqual(expectedBarrel.damageMultiplier, new Barrel(BarrelEnum.LongBarrel).damageMultiplier);
}