public void CanExecuteTest()
{
var command = new RelayCommand<string>(p =>
{
},
p => p == "CanExecute");
Assert.AreEqual(true, command.CanExecute("CanExecute"));
Assert.AreEqual(false, command.CanExecute("Hello"));
}
public void CanExecuteTest()
{
var canExecute = true;
var command = new RelayCommand(() =>
{
},
() => canExecute);
Assert.AreEqual(true, command.CanExecute(null));
canExecute = false;
Assert.AreEqual(false, command.CanExecute(null));
}
public void CanExecuteTestNull()
{
var command = new RelayCommand(() =>
{
});
Assert.AreEqual(true, command.CanExecute(null));
}
public void CanExecuteTestNull()
{
var command = new RelayCommand<string>(p =>
{
});
Assert.AreEqual(true, command.CanExecute("Hello"));
}
public void CanExecuteTestInvalidParameterType()
{
var command = new RelayCommand<string>(p =>
{
},
p => p == "CanExecute");
command.CanExecute(DateTime.Now);
}
public void CanExecuteTestNullParameter()
{
var command = new RelayCommand<string>(p =>
{
},
p => false);
Assert.AreEqual(false, command.CanExecute(null));
var command2 = new RelayCommand<string>(p =>
{
},
p => true);
Assert.AreEqual(true, command2.CanExecute(null));
}
/// <summary>
/// Initializes a new instance of the MainViewModel class.
/// </summary>
public MainViewModel(IDataService dataService)
{
_dataService = dataService;
Users = new ObservableCollection<User>();
ReadAllUsersCommand = new RelayCommand(GetUsers);
//Execute ReadAllUsersCommand to display all users on the main window when the application launches
if (ReadAllUsersCommand.CanExecute(null))
ReadAllUsersCommand.Execute(null);
SearchUsersCommand = new RelayCommand(SearchUsers);
SendUserCommand = new RelayCommand(SendUser);
ReceiveRefreshUsersMessage();
}
public void CanExecuteTestInvalidParameterType()
{
var command = new RelayCommand<string>(
p =>
{
},
p => p == "CanExecute");
try
{
command.CanExecute(DateTime.Now);
Assert.Fail("InvalidCastException was not thrown");
}
catch (InvalidCastException)
{
}
}
public void TestCanExecuteWithInvalidParameterType()
{
var command = new RelayCommand<string>(
p =>
{
},
p => p == "CanExecute");
var result = command.CanExecute(DateTime.Now);
Assert.IsFalse(result);
}