public void TestRelayCommandWithNullValueTypeParam()
{
RelayCommand<int> command = new RelayCommand<int>(
e => Assert.That(e, Is.EqualTo(0)),
i =>
{
Assert.That(i, Is.EqualTo(0));
return true;
});
Assert.That(command.HasCanExecuteFunction, Is.True);
Assert.That(command.CanExecute(null), Is.True);
command.Execute(null);
Assert.That(command.CanExecute(null), Is.True);
}
public void TestRelayCommandWithParamNoCanExecute()
{
const string parameterString = "567";
int parameterAsInt = int.Parse(parameterString);
bool actionPerformed = false;
string executeActionParam = string.Empty;
RelayCommand<string> command = new RelayCommand<string>(
e =>
{
executeActionParam = e;
actionPerformed = true;
});
Assert.That(command.HasCanExecuteFunction, Is.False);
Assert.That(command.CanExecute(parameterString), Is.True);
command.Execute(parameterAsInt);
Assert.That(command.CanExecute(parameterString), Is.True);
// Check convertible parameter.
Assert.That(command.CanExecute(parameterAsInt), Is.True);
Assert.That(actionPerformed, Is.True);
Assert.That(executeActionParam, Is.EqualTo(parameterString));
}
public void TestRelayCommandNoParamNoCanExecute()
{
bool actionPerformed = false;
BaseCommand command = new RelayCommand(
() => { actionPerformed = true; });
Assert.That(command.HasCanExecuteFunction, Is.False);
Assert.That(command.CanExecute(null), Is.True);
command.Execute(null);
Assert.That(command.CanExecute(null), Is.True);
Assert.That(actionPerformed, Is.True);
}