public void AddViewModelInstance_NewInstance()
{
ViewModelManager.ClearAll();
var viewModel = new ManagedViewModel(typeof (InterestingViewModel));
viewModel.AddViewModelInstance(new InterestingViewModel());
}
public void RemoveViewModelInstance_NotRegisteredViewModel()
{
ViewModelManager.ClearAll();
var viewModel = new ManagedViewModel(typeof (InterestingViewModel));
viewModel.RemoveViewModelInstance(new InterestingViewModel());
}
public void RemoveViewModelInstance_Null()
{
ViewModelManager.ClearAll();
var viewModel = new ManagedViewModel(typeof (InterestingViewModel));
ExceptionTester.CallMethodAndExpectException<ArgumentNullException>(() => viewModel.RemoveViewModelInstance(null));
}
public void AddViewModelInstance_WrongType()
{
ViewModelManager.ClearAll();
var viewModel = new ManagedViewModel(typeof (InterestingViewModel));
try
{
viewModel.AddViewModelInstance(new InterestedViewModel());
Assert.Fail("Expected WrongViewModelTypeException");
}
catch (WrongViewModelTypeException ex)
{
Assert.AreEqual(ex.ActualType, typeof (InterestedViewModel));
Assert.AreEqual(ex.ExpectedType, typeof (InterestingViewModel));
}
}
/// <summary>
/// Gets the managed view model for a specific view model type.
/// </summary>
/// <param name="viewModelType">Type of the view model.</param>
/// <returns>The <see cref="ManagedViewModel"/> of the specified type.</returns>
private ManagedViewModel GetManagedViewModel(Type viewModelType)
{
return(_managedViewModelsLock.PerformUpgradableRead(() =>
{
if (_managedViewModels.TryGetValue(viewModelType, out var result))
{
return result;
}
result = new ManagedViewModel(viewModelType);
_managedViewModelsLock.PerformWrite(() =>
{
_managedViewModels.Add(viewModelType, result);
});
return result;
}));
}
public void Constructor()
{
var viewModel = new ManagedViewModel(typeof (InterestingViewModel));
Assert.AreEqual(typeof (InterestingViewModel), viewModel.ViewModelType);
}
public async Task InterestedViewModelAutomaticallyBeingRemovedWhenClosed()
{
ViewModelManager.ClearAll();
var viewModel = new ManagedViewModel(typeof (InterestingViewModel));
var interestingViewModel = new InterestingViewModel();
var interestedViewModel = new InterestedViewModel();
viewModel.AddViewModelInstance(interestingViewModel);
viewModel.AddInterestedViewModel(interestedViewModel);
interestingViewModel.InterestingValue = "new value";
Assert.AreEqual("new value", interestedViewModel.InterestedValue);
await interestedViewModel.CloseViewModel(null);
interestingViewModel.InterestingValue = "new value which has changed";
Assert.AreNotEqual("new value which has changed", interestedViewModel.InterestedValue);
Assert.AreEqual("new value", interestedViewModel.InterestedValue);
await interestingViewModel.CloseViewModel(false);
await interestedViewModel.CloseViewModel(false);
}
public async Task InterestingViewModelCommandExecutedWithCommandParameter()
{
ViewModelManager.ClearAll();
var viewModel = new ManagedViewModel(typeof (InterestingViewModel));
var interestingViewModel = new InterestingViewModel();
var interestedViewModel = new InterestedViewModel();
viewModel.AddViewModelInstance(interestingViewModel);
viewModel.AddInterestedViewModel(interestedViewModel);
interestingViewModel.TestCommand.Execute("parameter");
Assert.AreEqual(true, interestedViewModel.CommandHasBeenExecuted);
Assert.AreEqual(true, interestedViewModel.CommandHasBeenExecutedWithParameter);
await interestingViewModel.CloseViewModel(false);
await interestedViewModel.CloseViewModel(false);
}
public async Task InterestingViewModelPropertyChanged()
{
ViewModelManager.ClearAll();
var viewModel = new ManagedViewModel(typeof (InterestingViewModel));
var interestingViewModel = new InterestingViewModel();
var interestedViewModel = new InterestedViewModel();
viewModel.AddViewModelInstance(interestingViewModel);
viewModel.AddInterestedViewModel(interestedViewModel);
interestingViewModel.InterestingValue = "new value";
Assert.AreEqual("new value", interestedViewModel.InterestedValue);
await interestingViewModel.CloseViewModel(false);
await interestedViewModel.CloseViewModel(false);
}
