public void TotalAmount_ChangingItemAmounts_ExpectTotalAmountChangedEvent()
{
var items = new List <BudgetItem>
{
new BudgetItem("1", "item 1"),
new BudgetItem("2", "item 2"),
new BudgetItem("3", "item 3"),
};
var group = new BudgetGroup("1", "group 1", budgetItems: items);
var viewModel = new BudgetGroupViewModel(group);
bool wasChanged = false;
viewModel.PropertyChanged += (o, e) =>
{
if (e.PropertyName == nameof(viewModel.TotalAmount))
{
wasChanged = true;
}
};
group.BudgetItems[1].Amount = 234.56m;
wasChanged.Should().BeTrue();
viewModel.TotalAmount.Should().Be(group.TotalAmount.ToCurrencyString());
}
internal Budget(
BudgetGroup incomeGroup,
BudgetGroup housingGroup,
BudgetGroup transportationGroup,
BudgetGroup foodGroup,
BudgetGroup personalGroup,
BudgetGroup givingGroup,
BudgetGroup debtGroup,
BudgetGroup basicExpensesDisplayGroup)
{
IncomeGroup = incomeGroup ?? throw new ArgumentNullException(nameof(incomeGroup));
HousingGroup = housingGroup ?? throw new ArgumentNullException(nameof(housingGroup));
TransportationGroup = transportationGroup ?? throw new ArgumentNullException(nameof(transportationGroup));
FoodGroup = foodGroup ?? throw new ArgumentNullException(nameof(foodGroup));
PersonalGroup = personalGroup ?? throw new ArgumentNullException(nameof(personalGroup));
GivingGroup = givingGroup ?? throw new ArgumentNullException(nameof(givingGroup));
DebtGroup = debtGroup ?? throw new ArgumentNullException(nameof(debtGroup));
BasicExpensesDisplayGroup = basicExpensesDisplayGroup ?? throw new ArgumentNullException(nameof(basicExpensesDisplayGroup));
void InitializeBudgetGroupChangeListeners()
{
IncomeGroup.PropertyChanged += GroupPropertyChanged;
HousingGroup.PropertyChanged += GroupPropertyChanged;
TransportationGroup.PropertyChanged += GroupPropertyChanged;
FoodGroup.PropertyChanged += GroupPropertyChanged;
PersonalGroup.PropertyChanged += GroupPropertyChanged;
GivingGroup.PropertyChanged += GroupPropertyChanged;
DebtGroup.PropertyChanged += GroupPropertyChanged;
GivingGroup.PropertyChanged += GroupPropertyChanged;
}
void GroupPropertyChanged(object sender, PropertyChangedEventArgs e)
{
if (e.PropertyName == nameof(BudgetGroup.TotalAmount))
{
RecalculateTotals();
}
}
void RecalculateTotals()
{
IncomeRemaining =
IncomeGroup.TotalAmount
- HousingGroup.TotalAmount
- TransportationGroup.TotalAmount
- FoodGroup.TotalAmount
- PersonalGroup.TotalAmount
- GivingGroup.TotalAmount
- DebtGroup.TotalAmount;
BasicExpensesDisplayGroup.BudgetItems[0].Amount =
HousingGroup.TotalAmount
+ TransportationGroup.TotalAmount
+ FoodGroup.TotalAmount
+ PersonalGroup.TotalAmount;
}
}
public void IsTotalAmountZero_NonZeroItemAmounts_ExpectFalse()
{
var items = new List <BudgetItem>
{
new BudgetItem("1", "test 1"),
new BudgetItem("2", "test 2", 100m),
new BudgetItem("3", "test 3")
};
var group = new BudgetGroup("1", "name", budgetItems: items);
var viewModel = new BudgetGroupViewModel(group);
viewModel.IsTotalAmountZero.Should().BeFalse();
}
public void IsTotalAmountZero_AllZeroItemsAmount_ExpectTrue()
{
var items = new List <BudgetItem>
{
new BudgetItem("1", "test 1"),
new BudgetItem("2", "test 2"),
new BudgetItem("3", "test 3")
};
var group = new BudgetGroup("1", "name", budgetItems: items);
var viewModel = new BudgetGroupViewModel(group);
viewModel.IsTotalAmountZero.Should().BeTrue();
}
double CalculateGroupRatio(BudgetGroup group)
{
if (budget.IncomeGroup.TotalAmount <= 0)
{
return(1);
}
var ratio = (double)(group.TotalAmount / budget.IncomeGroup.TotalAmount);
ratio = Math.Max(0, ratio);
ratio = Math.Min(1, ratio);
return(ratio);
}
public void BudgetItems_DeleteItemGroup_ViewModelDeleted()
{
var items = new List <BudgetItem>
{
new BudgetItem("id1", "name1"),
new BudgetItem("id2", "name2", 12.34m, BudgetItemType.Debt),
};
var group = new BudgetGroup("id", "group name", budgetItems: items);
var budgetGroupViewModel = new BudgetGroupViewModel(group);
var itemDeleted = group.BudgetItems[0];
group.BudgetItems.RemoveAt(0);
budgetGroupViewModel.BudgetItems.Count.Should().Be(1);
budgetGroupViewModel.BudgetItems.Any(item => item.BudgetItem == itemDeleted).Should().BeFalse();
}
public void IsTotalAmountZero_ChangingItemAmounts_ExpectChangingTrueFalse()
{
var items = new List <BudgetItem>
{
new BudgetItem("1", "item 1"),
new BudgetItem("2", "item 2"),
new BudgetItem("3", "item 3"),
};
var group = new BudgetGroup("1", "group 1", budgetItems: items);
var viewModel = new BudgetGroupViewModel(group);
viewModel.IsTotalAmountZero.Should().BeTrue();
group.BudgetItems[1].Amount = 234.56m;
viewModel.IsTotalAmountZero.Should().BeFalse();
group.BudgetItems[1].Amount = 0;
viewModel.IsTotalAmountZero.Should().BeTrue();
}
public void Constructor_DefaultBudgetGroupPresentation_PresentsDefaultValues()
{
var name = "group";
var group = new BudgetGroup("group1", name);
BudgetGroupViewModel viewModel = new BudgetGroupViewModel(group);
viewModel.BudgetItems.Should().BeEmpty();
viewModel.ColorKey.Should().Be(BudgetGroupPresentation.DefaultColorKey);
viewModel.IconSource.Should().Be("");
viewModel.Description.Should().Be("");
viewModel.Subtitle.Should().Be(BudgetGroupPresentation.DefaultSubtitle);
viewModel.AddItemText.Should().Be(BudgetGroupPresentation.DefaultAddItemText);
viewModel.CustomTitle.Should().Be("");
viewModel.IsTitleVisible.Should().BeTrue("a custom title is not provided");
viewModel.IsCustomTitleVisible.Should().BeFalse("a custom title is not provided");
viewModel.HasSecondaryHeader.Should().BeFalse();
viewModel.HeaderTextWithoutDate.Should().Be(name.ToUpper());
viewModel.HeaderText.Should().Be(viewModel.HeaderTextWithoutDate, "hasDateOnHeader is false");
}
internal Budget(
BudgetGroup incomeGroup,
BudgetGroup housingGroup,
BudgetGroup transportationGroup,
BudgetGroup foodGroup,
BudgetGroup personalGroup,
BudgetGroup givingGroup,
BudgetGroup debtGroup,
BudgetGroup basicExpensesDisplayGroup)
{
IncomeGroup = incomeGroup ?? throw new ArgumentNullException(nameof(incomeGroup));
HousingGroup = housingGroup ?? throw new ArgumentNullException(nameof(housingGroup));
TransportationGroup = transportationGroup ?? throw new ArgumentNullException(nameof(transportationGroup));
FoodGroup = foodGroup ?? throw new ArgumentNullException(nameof(foodGroup));
PersonalGroup = personalGroup ?? throw new ArgumentNullException(nameof(personalGroup));
GivingGroup = givingGroup ?? throw new ArgumentNullException(nameof(givingGroup));
DebtGroup = debtGroup ?? throw new ArgumentNullException(nameof(debtGroup));
BasicExpensesDisplayGroup = basicExpensesDisplayGroup ?? throw new ArgumentNullException(nameof(basicExpensesDisplayGroup));
InitializeBudgetGroupChangeListeners();
}
public void Constructor_ModelWithBudgetItems_PresentsGroupAndItems()
{
string name = "test group name";
var items = new List <BudgetItem>
{
new BudgetItem("id1", "group1"),
new BudgetItem("id2", "group2", 12.34m),
};
var group = new BudgetGroup("id3", name, budgetItems: items);
var viewModel = new BudgetGroupViewModel(group);
viewModel.Name.Should().Be(group.Name);
viewModel.NameLower.Should().Be(group.Name.ToLower());
viewModel.TotalAmount.Should().Be(group.TotalAmount.ToCurrencyString());
viewModel.BudgetItems.Count.Should().Be(items.Count);
for (int i = 0; i < items.Count; i++)
{
viewModel.BudgetItems[i].BudgetItem.Should().Be(items[i]);
}
}