public void ThrowsArgumentNullExceptionForNullHandler()
{
var viewModel = new TestViewModel();
var viewModelCommandManager = ViewModelCommandManager.Create(viewModel);
ExceptionTester.CallMethodAndExpectException <ArgumentNullException>(() => viewModelCommandManager.AddHandler(null));
}
public void ReturnsViewModelCommandManagerForViewModel()
{
var viewModel = new TestViewModel();
var viewModelCommandManager = ViewModelCommandManager.Create(viewModel);
Assert.IsNotNull(viewModelCommandManager);
}
public async void RegisteredHandlerGetsCalled()
{
var viewModel = new TestViewModel();
var viewModelCommandManager = ViewModelCommandManager.Create(viewModel);
await viewModel.InitializeViewModel();
bool called = false;
viewModelCommandManager.AddHandler((vm, property, command, commandParameter) => called = true);
viewModel.GenerateData.Execute();
Assert.IsTrue(called);
}
/// <summary>
/// Initializes the view model.
/// </summary>
protected ViewModelBase()
{
if (CatelEnvironment.IsInDesignMode)
{
return;
}
UniqueIdentifier = UniqueIdentifierHelper.GetUniqueIdentifier(GetType());
ViewModelConstructionTime = DateTime.Now;
AuditingHelper.RegisterViewModel(this);
_viewModelCommandManager = ViewModelCommandManager.Create(this);
_viewModelCommandManager.AddHandler((viewModel, propertyName, command, commandParameter) =>
_catelCommandExecuted.SafeInvoke(this, new CommandExecutedEventArgs((ICatelCommand)command, commandParameter, propertyName)));
ViewModelManager.RegisterViewModelInstance(this);
}
public void ThrowsArgumentNullExceptionForNullViewModel()
{
ExceptionTester.CallMethodAndExpectException <ArgumentNullException>(() => ViewModelCommandManager.Create(null));
}