public void Get_Item_Index_From_Empty_Catalogue()
{
ICatalogue catalogue = new SimpleCatalogue();
IItem item = new FakeItem();
var exception = Assert.Throws <EmptyContainerException>(() =>
{
catalogue.GetItemIndex(item);
});
Assert.That(exception.GetType() == typeof(EmptyContainerException));
}
public void Get_Item_Index_From_Catalogue_Containing_It()
{
ICatalogue catalogue = new SimpleCatalogue();
IItem item = new FakeItem();
catalogue.AddItem(item);
IItem item2 = new FakeItemWithPrice();
catalogue.AddItem(item2);
int index = catalogue.GetItemIndex(item2);
Assert.That(index.Equals(1));
}
public void Get_Item_Index_From_Catalogue_Not_Containing_It()
{
ICatalogue catalogue = new SimpleCatalogue();
IItem item = new FakeItem();
catalogue.AddItem(item);
IItem item2 = new FakeItemWithPrice();
var exception = Assert.Throws <ItemMismatchException>(() =>
{
catalogue.GetItemIndex(item2);
});
Assert.That(exception.GetType() == typeof(ItemMismatchException));
}
public void Get_Existing_Items_By_Index_That_Can_Be_Bought(int initialAmount, decimal amount, int purchasableAmount)
{
ICatalogue catalogue = new SimpleCatalogue();
IItem fakeItem = new FakeItemWithPrice();
for (int i = 0; i < initialAmount; i++)
{
catalogue.AddItem(fakeItem);
}
int index = catalogue.GetItemIndex(fakeItem);
int canBePurchased = catalogue.ItemsThatCanBeBought(index, amount);
Assert.That(canBePurchased.Equals(purchasableAmount));
}