Esempio n. 1
0
        public void CanObserveStateOfMultipleEventViews()
        {
            // Arrange
            var eventSubject           = new Subject <SimpleEvent>();
            var totalCostCartEventView = new TotalCostCartEventView(eventSubject.AsObservable());
            var ordersCartEventView    = new OrdersCartEventView(eventSubject.AsObservable());

            // Act
            TotalCostCartState lastTotalCostCartState = null;
            OrdersCartState    lastOrdersCartState    = null;

            totalCostCartEventView.ObserveState()
            .Subscribe(state =>
            {
                lastTotalCostCartState = state;
            });
            ordersCartEventView.ObserveState()
            .Subscribe(state =>
            {
                lastOrdersCartState = state;
            });

            eventSubject.OnNext(new SimpleEvent
            {
                EventName = nameof(AddItemInCartCommand),
                Data      = new AddItemInCartCommand
                {
                    ItemName = "Book",
                    UnitCost = 45
                }
            });
            eventSubject.OnNext(new SimpleEvent
            {
                EventName = nameof(AddItemInCartCommand),
                Data      = new AddItemInCartCommand
                {
                    ItemName = "Book",
                    UnitCost = 20
                }
            });

            // Assert
            Assert.NotNull(lastTotalCostCartState);
            Assert.Equal(65, lastTotalCostCartState.TotalCost);

            Assert.NotNull(lastOrdersCartState);
            Assert.Equal(2, lastOrdersCartState.NumberOfItems);
            Assert.Single(lastOrdersCartState.Items);
            Assert.True(lastOrdersCartState.Items.ContainsKey("Book"));
            Assert.Equal(2, lastOrdersCartState.Items["Book"]);
        }
Esempio n. 2
0
        public void CanObserveStateWithEventsOfTheSameType()
        {
            // Arrange
            var eventSubject = new Subject <SimpleEvent>();
            var eventView    = new TotalCostCartEventView(eventSubject.AsObservable());

            // Act
            int eventListenedCount       = 0;
            TotalCostCartState lastState = null;

            eventView.ObserveState()
            .Subscribe(state =>
            {
                eventListenedCount++;
                lastState = state;
            });

            eventSubject.OnNext(new SimpleEvent
            {
                EventName = nameof(AddItemInCartCommand),
                Data      = new AddItemInCartCommand
                {
                    ItemName = "Book",
                    UnitCost = 45
                }
            });
            eventSubject.OnNext(new SimpleEvent
            {
                EventName = nameof(AddItemInCartCommand),
                Data      = new AddItemInCartCommand
                {
                    ItemName = "Book",
                    UnitCost = 20
                }
            });

            // Assert
            Assert.Equal(2, eventListenedCount);
            Assert.NotNull(lastState);
            Assert.Equal(65, lastState.TotalCost);
        }