//Removing Should trigger PropertyChanged for Items and Price
public void RemoveShouldTriggerPropertyChanged(string property)
{
var order = new Order();
var item = new MockOrderItem();
Assert.PropertyChanged(order, property, () => order.Remove(item));
}
public void AddingItemsInvokesPropertyChangedOnSubtotal()
{
var order = new Order();
var item = new MockOrderItem();
Assert.PropertyChanged(order, "Subtotal", () => order.Add(item));
}
public void AddedIOrderItemsAppearInItemsProperty()
{
var order = new Order();
var item = new MockOrderItem();
order.Add(item);
Assert.Contains(item, order.Items);
}
public void ShouldBeAbleToRemoveItems()
{
var order = new Order();
var item = new MockOrderItem();
order.Remove(item);
Assert.DoesNotContain(item, order.Items);
}
public void ShouldBeAbleToAddItems()
{
var order = new Order();
var item = new MockOrderItem();
order.Add(item);
Assert.Contains(item, order.Items);
}
public void RemovingItemsInvokesPropertyChangedOnItems()
{
var order = new Order();
var item = new MockOrderItem();
order.Items.Add(item);
Assert.PropertyChanged(order, "Items", () => order.Remove(item));
}
public void RemovedOrderItemDoesNotAppearInItems()
{
var order = new Order();
var item = new MockOrderItem();
order.Add(item);
order.Remove(item);
Assert.DoesNotContain(item, order.Items);
}
public void RemovedIOrderItemsNoLongerAppearInItemsProperty()
{
var order = new Order(1);
var item = new MockOrderItem();
order.Add(item);
order.Remove(item);
Assert.DoesNotContain(item, order.Items);
}
public void AddedIOrderItemsAppearInItemsProperty()
{
var order = new Order();
var item = new MockOrderItem();
order.Add(item);
Assert.Contains(item, order.Items);
//checks if memory address is the same
}
public void AddingAnItemShouldTriggerPropertyChangedForPrice(string propertyName)
{
var order = new Order();
var item = new MockOrderItem();
Assert.PropertyChanged(order, propertyName, () =>
{
order.Add(item);
});
}
public void ShouldBeAbleToGetEnumerationOfItems()
{
var order = new Order();
var item0 = new MockOrderItem();
var item1 = new MockOrderItem();
var item2 = new MockOrderItem();
order.Add(item0);
order.Add(item1);
order.Add(item2);
Assert.Collection(order.Items,
item => Assert.Equal(item0, item),
item => Assert.Equal(item1, item),
item => Assert.Equal(item2, item));
}