public async Task Publish_Sends_To_All_Subscribers()
{
_target.AddListener(_listenerA);
_target.AddListener(_listenerAB);
await _target.Publish(new ObservableA()).ConfigureAwait(false);
Assert.AreEqual(1, _listenerA.MessageAReceived, "ListenerA");
Assert.AreEqual(1, _listenerAB.MessageAReceived, "ListenerAB");
}
public MainWindow()
{
InitializeComponent();
// Use this as construction root for simplicity.
// In real world app there should be good framework for this and this should be done
// outside of main window for reason that then mainwindow is interchangeable too if required.
var dataSource = new InMemoryRepository();
// Dummy data for testing...
dataSource.Add(new CarImage {Color="Black", RegisterPlate = "ABC-123", Speed = 140});
var messenger = new MessageAggregator();
var reportViewModel = new ReportViewModel(dataSource, messenger);
var colorFilter = new ColorFilterViewModel();
var filterViewModel = new FiltersViewModel(new List<IFilter> {colorFilter}, messenger);
// Just for testing, apply dummy filter so that data is shown.
messenger.Publish(new Messages.FiltersAppliedMessage());
DataContext = new
{
Report = reportViewModel,
Filters = filterViewModel
};
}
public void RegisterWithSingleConsumer_WorksTogether()
{
string message = "Not set";
var messenger = new MessageAggregator();
messenger.Subscribe<TestMessage>(m => message = m.ExampleMessage);
messenger.Publish(new TestMessage {ExampleMessage = "Message example."});
message.Should().Be("Message example.");
}
public void WithMultipleRegisteredTypes_OnlyReactCorrectlyTypedMessage()
{
string firstMessage = "Not set";
string secondMessage = "Not set";
string doNotTouchMessage = "Should not be changed.";
var messenger = new MessageAggregator();
messenger.Subscribe<TestMessage>(m => firstMessage = m.ExampleMessage);
messenger.Subscribe<TestMessage>(m => secondMessage = m.ExampleMessage);
messenger.Subscribe<NotUsedTestMessage>(m => doNotTouchMessage = "This should not happen.");
messenger.Publish(new TestMessage { ExampleMessage = "Message example." });
firstMessage.Should().Be("Message example.");
secondMessage.Should().Be("Message example.");
doNotTouchMessage.Should().Be("Should not be changed.");
}
