public void OnNavigatingTo()
{
var navigationService = new Mock <INavigationService>();
var editExpense = new Mock <IEditExpense>();
var actual = new AddExpensePageViewModel(navigationService.Object, editExpense.Object);
actual.OnNavigatingTo(null);
editExpense.Verify(m => m.InitializeAsync(), Times.Once);
}
public void OnNavigatingToForUpdate()
{
var navigationService = new Mock <INavigationService>();
var editExpense = new Mock <IEditExpense>();
var actual = new AddExpensePageViewModel(navigationService.Object, editExpense.Object);
var navigationParameters = new NavigationParameters();
navigationParameters[AddExpensePageViewModel.ExpenseIdKey] = "expenseId";
actual.OnNavigatingTo(navigationParameters);
editExpense.Verify(m => m.InitializeAsync("expenseId"), Times.Once);
}