public void TotalAmount_AddNewBudgetItem_ExpectGroupListenerNotified()
{
var items = new List <BudgetItem>()
{
new BudgetItem("item name", BudgetItemType.Debt, 12.34m)
};
var group = new BudgetGroup("test group", budgetItems: items);
group.AddNewBudgetItem();
bool wasGroupNotified = false;
group.PropertyChanged += (o, e) =>
{
if (e.PropertyName == nameof(group.TotalAmount))
{
wasGroupNotified = true;
}
};
var newAmount = 99.99m;
group.BudgetItems.Last().Amount = newAmount;
wasGroupNotified.Should().BeTrue();
}
public void AddNewBudgetItem_ExpectNewNameOnEachAddition()
{
var group = new BudgetGroup("test group");
var firstNewItemName = group.NewBudgetItemName;
group.AddNewBudgetItem();
group.NewBudgetItemName.Should().NotBe(firstNewItemName);
}
public void AddNewBudgetItem_ExpectAddedWithDefaultValues()
{
var expectedType = BudgetItemType.Debt;
var group = new BudgetGroup("test group", defaultItemType: expectedType);
var expectedName = group.NewBudgetItemName;
group.AddNewBudgetItem();
group.BudgetItems.Count().Should().Be(1);
group.BudgetItems.Last().Name.Should().Be(expectedName);
group.BudgetItems.Last().Type.Should().Be(expectedType);
}
public void AddNewBudgetItem() => BudgetGroup.AddNewBudgetItem();