public void CanExecuteCalculateCommand()
{
CalcViewModel viewModel = new CalcViewModel();
ICommand command = viewModel.CalcCommand;
command.Execute(null);
}
public void CanInputSum()
{
CalcViewModel viewModel = new CalcViewModel();
viewModel.Input = "1+1";
Assert.AreEqual("1+1", viewModel.Input);
}
public void CanExecuteCalculateCommandFiveTimeSeven()
{
CalcViewModel viewModel = new CalcViewModel();
viewModel.Input = "5*7";
ICommand command = viewModel.CalcCommand;
command.Execute(null);
Assert.AreEqual(35, viewModel.Result);
}
public void CanExecuteCalculateCommandTwoPlusTwo()
{
CalcViewModel viewModel = new CalcViewModel();
viewModel.Input = "2+2";
ICommand command = viewModel.CalcCommand;
command.Execute(null);
Assert.AreEqual(4, viewModel.Result);
}
public void ResultChangedNotificationIsFired()
{
CalcViewModel viewModel = new CalcViewModel();
bool hasFired = false;
viewModel.PropertyChanged += (sender, args) =>
{
if (args.PropertyName == "Result")
{
hasFired = true;
}
};
viewModel.Input = "5*7";
ICommand command = viewModel.CalcCommand;
command.Execute(null);
Assert.IsTrue(hasFired);
}
public AddCharCommand(CalcViewModel viewModel)
{
this.viewModel = viewModel;
}
public CalcCommand(CalcViewModel viewModel)
{
this.viewModel = viewModel;
}
public OperationCommand(CalcViewModel viewModel)
{
this.viewModel = viewModel;
}
public DeleteCharCommand(CalcViewModel viewModel)
{
this.viewModel = viewModel;
}
public void CanCreateViewModel()
{
CalcViewModel viewModel = new CalcViewModel();
}