public void Execute()
        {
            // Arrange
            Mock <ControllerContext> mockControllerContext = new Mock <ControllerContext>();

            mockControllerContext.Expect(c => c.Controller).Returns(new ExecuteController());
            ControllerContext controllerContext = mockControllerContext.Object;

            MethodInfo beginMethod = typeof(ExecuteController).GetMethod("BeginMethod");
            MethodInfo endMethod   = typeof(ExecuteController).GetMethod("EndMethod");
            Dictionary <string, object> parameters = new Dictionary <string, object>()
            {
                { "id", 42 }
            };

            ReflectedAsyncPatternActionDescriptor ad = GetActionDescriptor(beginMethod, endMethod);

            SignalContainer <object> resultContainer = new SignalContainer <object>();
            AsyncCallback            callback        = ar => {
                object o = ad.EndExecute(ar);
                resultContainer.Signal(o);
            };

            // Act
            ad.BeginExecute(controllerContext, parameters, callback, null);
            object retVal = resultContainer.Wait();

            // Assert
            Assert.AreEqual(42, retVal);
        }
        public void ExecuteThrowsIfControllerContextIsNull()
        {
            // Arrange
            ReflectedAsyncPatternActionDescriptor ad = GetActionDescriptor(null, null);

            // Act & assert
            ExceptionHelper.ExpectArgumentNullException(
                delegate {
                ad.BeginExecute(null, null, null, null);
            }, "controllerContext");
        }
        public void ExecuteThrowsIfParametersIsNull()
        {
            // Arrange
            ReflectedAsyncPatternActionDescriptor ad = GetActionDescriptor(null, null);
            ControllerContext controllerContext      = new Mock <ControllerContext>().Object;

            // Act & assert
            ExceptionHelper.ExpectArgumentNullException(
                delegate {
                ad.BeginExecute(controllerContext, null, null, null);
            }, "parameters");
        }