public void RelayCommandExecute_HandlesCommand()
{
//given
var stubCalculator = MockRepository.GenerateStub <ICalculator>();
var viewModel = new WPFCalcZielinski.ViewModel.MainViewModel(stubCalculator);
var commandParam = "+";
//when
viewModel.RelayCommand.Execute(commandParam);
//them
stubCalculator.AssertWasCalled(x => x.HandleCommand(commandParam));
}
private void RelayCommandExecute_PropertyChangedRaised(string propertyName)
{
//given
var stubCalculator = MockRepository.GenerateStub <ICalculator>();
var viewModel = new WPFCalcZielinski.ViewModel.MainViewModel(stubCalculator);
var commandParam = "+";
var propertyChangedRaised = false;
//when
viewModel.PropertyChanged += (a, b) => propertyChangedRaised |= (b.PropertyName == propertyName);
viewModel.RelayCommand.Execute(commandParam);
//them
Assert.IsTrue(propertyChangedRaised);
}
