public void AddFunctionAsCalculatorEventHandler()
{
Calculator calculator = new Calculator();
Listener listener = new Listener();
ObjectUtilities.AddHandler(calculator, "MyEvent", listener, null);
calculator.Add(1, 2);
Assert.AreEqual(1, listener.X);
Assert.AreEqual(2, listener.Y);
}
public void CallNativeObjectMethodWithArguments()
{
Calculator calculator = new Calculator();
BindingEnvironment environment = new BindingEnvironment();
environment.SetValue("calculator", calculator);
CallExpression expression = new CallExpression(new AttributeExpression(new NameExpression("calculator"), "Add"), new IExpression[] { new ConstantExpression(1), new ConstantExpression(2) });
var result = expression.Evaluate(environment);
Assert.IsNotNull(result);
Assert.AreEqual(calculator.Add(1, 2), result);
}
public void AddEventHandlerToCalculator()
{
Listener listener = new Listener();
Calculator calculator = new Calculator();
FunctionWrapper<int, int, int, Action<int, int>> wrapper = new FunctionWrapper<int, int, int, Action<int, int>>(listener, null);
typeof(Calculator).GetEvent("MyEvent").AddEventHandler(calculator, wrapper.CreateActionDelegate());
calculator.Add(1, 2);
Assert.AreEqual(1, listener.X);
Assert.AreEqual(2, listener.Y);
MethodInfo invoke = typeof(Calculator).GetEvent("MyEvent").EventHandlerType.GetMethod("Invoke");
MethodInfo add = typeof(Calculator).GetEvent("MyEvent").GetAddMethod();
Assert.IsNotNull(add);
Assert.AreEqual(1, add.GetParameters().Count());
Assert.IsNotNull(invoke);
var parameters = invoke.GetParameters();
var returnparameter = invoke.ReturnParameter;
Assert.IsNotNull(returnparameter);
Assert.AreEqual("System.Void", returnparameter.ParameterType.FullName);
Assert.AreEqual(typeof(MyEvent), typeof(Person).GetEvent("NameEvent").EventHandlerType);
}