public void RemoveItemInvalidateSpecialTest()
{
Grocery grocery = new Grocery();
grocery.AddSpecialNForX("milk", 3, .5m, 3);
grocery.addItem("milk", 3);
grocery.removeItem("milk");
Assert.AreEqual(2m, grocery.GetTotal());
}
public void LimitSpecialsNForXTest()
{
Grocery grocery = new Grocery();
grocery.AddSpecialNForX("milk", 3, .5m, 3);
grocery.addItem("milk", 3);
//Correctly discounted
Assert.AreEqual(1.5m, grocery.GetTotal());
grocery.addItem("milk", 3);
//Should add milk at normal price
Assert.AreEqual(4.5m, grocery.GetTotal());
}
public void NforXTest()
{
Grocery grocery = new Grocery();
grocery.AddSpecialNForX("milk", 3, .5m);
grocery.addItem("milk");
grocery.addItem("milk");
grocery.addItem("milk");
Assert.AreEqual(1.5m, grocery.GetTotal());
grocery.addItem("milk");
Assert.AreEqual(2.5m, grocery.GetTotal());
}
