public void CanIncrementItemQuantityInTill()
{
var items = new List <TillItem>()
{
new TillItem(TillItemType.Starter(), 1)
};
var till = new Till(items);
till.Items.First().IncrementQuantity();
Assert.True(till.Items.First().Quantity == 2);
}
public void CanNotDecrementItemIfQuantityIsOneInTillIs()
{
var items = new List <TillItem>()
{
new TillItem(TillItemType.Starter(), 1)
};
var till = new Till(items);
till.Items.First().DecrementQuantity();
Assert.True(till.Items.First().Quantity == 1);
}
public void GivenTillItemsTheTotalShouldBeCorrect(int mainsQuntity, int startersQuantity, double expectedTotal)
{
var items = new List <TillItem>()
{
new TillItem(TillItemType.Main(), mainsQuntity),
new TillItem(TillItemType.Starter(), startersQuantity)
};
var till = new Till(items);
var totalCost = till.TotalCost();
Assert.Equal(expectedTotal, totalCost);
}
public void CanDeleteItemFromTill()
{
var items = new List <TillItem>()
{
new TillItem(TillItemType.Main(), 1),
new TillItem(TillItemType.Starter(), 1)
};
var till = new Till(items);
till.Items.RemoveAt(1);
Assert.True(till.Items.Count == 1);
Assert.True(till.Items.Count(i => i.TillItemType.ItemType == ItemType.Starter) == 0);
}