public void When_monitoring_an_object_it_should_monitor_all_the_events_it_exposes()
{
// Arrange
var eventSource = new ClassThatRaisesEventsItself();
using (var eventMonitor = eventSource.Monitor())
{
// Act
EventMetadata[] metadata = eventMonitor.MonitoredEvents;
// Assert
metadata.Should().BeEquivalentTo(new[]
{
new
{
EventName = nameof(ClassThatRaisesEventsItself.InterfaceEvent),
HandlerType = typeof(EventHandler)
},
new
{
EventName = nameof(ClassThatRaisesEventsItself.PropertyChanged),
HandlerType = typeof(PropertyChangedEventHandler)
}
});
}
}
public void When_event_exists_on_class_but_not_on_monitored_interface_it_should_not_allow_monitoring_it()
{
// Arrange
var eventSource = new ClassThatRaisesEventsItself();
using var eventMonitor = eventSource.Monitor <IEventRaisingInterface>();
// Act
Action action = () => eventMonitor.GetRecordingFor("PropertyChanged");
// Assert
action.Should().Throw <InvalidOperationException>()
.WithMessage("Not monitoring any events named \"PropertyChanged\".");
}
public void When_monitoring_an_object_through_an_interface_it_should_monitor_only_the_events_it_exposes()
{
// Arrange
var eventSource = new ClassThatRaisesEventsItself();
using var monitor = eventSource.Monitor <IEventRaisingInterface>();
// Act
EventMetadata[] metadata = monitor.MonitoredEvents;
// Assert
metadata.Should().BeEquivalentTo(new[]
{
new
{
EventName = nameof(IEventRaisingInterface.InterfaceEvent),
HandlerType = typeof(EventHandler)
}
});
}