public static void Go()
{
var dispatcher = new AppDispatcher();
var store = new AppUIStore(dispatcher, new MessageApi(dispatcher));
var container = Document.GetElementById("main");
container.ClassName = string.Join(" ", container.ClassName.Split().Where(c => c != "loading"));
React.Render(
new AppContainer(store, dispatcher),
container
);
// After the Dispatcher and the Store and the Container Component are all associated with each other, the Store needs to be told that
// it's time to set its initial state, so that the Component can receive an OnChange event and draw itself accordingly. In a more
// complicated app, this would probably be an event fired by the router - initialising the Store appropriate to the current URL,
// but in this case there's only a single Store to initialise.
dispatcher.Dispatch(new StoreInitialised(store));
}
public static void RunTests()
{
Module("AppDispatcher");
Test("Broadcast action to single receiver", assert =>
{
var dispatcher = new AppDispatcher();
dispatcher.Receive(action =>
{
assert.Equal(action.GetType(), typeof(SomethingHappened));
});
dispatcher.Dispatch(new SomethingHappened());
});
Test("Broadcast action to two receivers, where the second to subscribe waits for the first to complete", assert =>
{
var dispatcher = new AppDispatcher();
var firstReceiverProcessed = false;
var token = dispatcher.Receive(action =>
{
firstReceiverProcessed = true;
});
dispatcher.Receive(action =>
{
dispatcher.WaitFor(token);
assert.Equal(firstReceiverProcessed, true);
});
dispatcher.Dispatch(new SomethingHappened());
});
Test("Broadcast action to two receivers, where the first to subscribe waits for the second to complete", assert =>
{
var dispatcher = new AppDispatcher();
DispatchToken token = null;
var secondReceiverProcessed = false;
dispatcher.Receive(action =>
{
dispatcher.WaitFor(token);
assert.Equal(secondReceiverProcessed, true);
});
token = dispatcher.Receive(action =>
{
secondReceiverProcessed = true;
});
dispatcher.Dispatch(new SomethingHappened());
});
Test("Broadcast action to two receivers that WaitFor each other - expect circular dependency failure", assert =>
{
var dispatcher = new AppDispatcher();
DispatchToken token2 = null;
var token1 = dispatcher.Receive(action =>
{
dispatcher.WaitFor(token2);
});
token2 = dispatcher.Receive(action =>
{
dispatcher.WaitFor(token1);
});
assert.Throws(() => dispatcher.Dispatch(new SomethingHappened()), "Dispatch should throw in this case");
});
Test("Broadcast action to three receivers where the first waits on the third, the second waits on the first and the third waits on the second - expect circular dependency failure", assert =>
{
var dispatcher = new AppDispatcher();
DispatchToken token3 = null;
var token1 = dispatcher.Receive(action =>
{
dispatcher.WaitFor(token3);
});
var token2 = dispatcher.Receive(action =>
{
dispatcher.WaitFor(token1);
});
token3 = dispatcher.Receive(action =>
{
dispatcher.WaitFor(token2);
});
assert.Throws(() => dispatcher.Dispatch(new SomethingHappened()), "Dispatch should throw in this case");
});
}
