public void LendToViewModelLendToTest()
{
Book book = new Book() { Title = "The Fellowship of the Ring" };
List<Person> persons = new List<Person>()
{
new Person() { Firstname = "Harry" },
new Person() { Firstname = "Ron" }
};
MockLendToView lendToView = new MockLendToView();
AssertHelper.ExpectedException<ArgumentNullException>(() => new LendToViewModel(lendToView, null, null));
AssertHelper.ExpectedException<ArgumentNullException>(() => new LendToViewModel(lendToView, book, null));
LendToViewModel lendToViewModel = new LendToViewModel(lendToView, book, persons);
Assert.AreEqual(book, lendToViewModel.Book);
Assert.AreEqual(persons, lendToViewModel.Persons);
// Show the dialog
object owner = new object();
Action<MockLendToView> showDialogAction = (view) =>
{
Assert.AreEqual("", LendToViewModel.Title);
Assert.IsTrue(lendToView.IsVisible);
Assert.AreEqual(owner, lendToView.Owner);
// Check the default values
Assert.IsTrue(lendToViewModel.IsLendTo);
Assert.IsFalse(lendToViewModel.IsWasReturned);
Assert.AreEqual(persons.First(), lendToViewModel.SelectedPerson);
// Select the last person: Lend to Ron
AssertHelper.PropertyChangedEvent(lendToViewModel, x => x.SelectedPerson, () =>
lendToViewModel.SelectedPerson = persons.Last());
// Press Ok button
lendToViewModel.OkCommand.Execute(null);
};
lendToView.ShowDialogAction = showDialogAction;
Assert.IsTrue(lendToViewModel.ShowDialog(owner));
Assert.IsFalse(lendToView.IsVisible);
Assert.AreEqual(persons.Last(), lendToViewModel.SelectedPerson);
}
public void LendToViewModelWasReturnedTest()
{
List<Person> persons = new List<Person>()
{
new Person() { Firstname = "Harry" },
new Person() { Firstname = "Ron" }
};
Book book = new Book() { Title = "The Fellowship of the Ring", LendTo = persons.First() };
MockLendToView lendToView = new MockLendToView();
LendToViewModel lendToViewModel = new LendToViewModel(lendToView, book, persons);
// Show the dialog
object owner = new object();
Action<MockLendToView> showDialogAction = (view) =>
{
// Check the default values
Assert.IsFalse(lendToViewModel.IsLendTo);
Assert.IsTrue(lendToViewModel.IsWasReturned);
// Change check boxes
AssertHelper.PropertyChangedEvent(lendToViewModel, x => x.IsLendTo, () =>
lendToViewModel.IsLendTo = true);
Assert.IsTrue(lendToViewModel.IsLendTo);
Assert.IsFalse(lendToViewModel.IsWasReturned);
// Restore the original check boxes state
AssertHelper.PropertyChangedEvent(lendToViewModel, x => x.IsWasReturned, () =>
lendToViewModel.IsWasReturned = true);
Assert.IsFalse(lendToViewModel.IsLendTo);
Assert.IsTrue(lendToViewModel.IsWasReturned);
lendToViewModel.OkCommand.Execute(null);
};
lendToView.ShowDialogAction = showDialogAction;
Assert.IsNotNull(lendToViewModel.SelectedPerson);
Assert.IsTrue(lendToViewModel.ShowDialog(owner));
Assert.IsNull(lendToViewModel.SelectedPerson);
}
