public static void AddRemoveMultipleIndividualHandlersFromSameSubscriber()
{
var subscriber = new TestEventHandler();
var collection = new EventSubscriberCollection();
Assert.True(collection.Add <NamedEvent>(subscriber));
Assert.False(collection.Add <NamedEvent>(subscriber));
Assert.True(collection.Add <TestEvent>(subscriber));
Assert.False(collection.Add <TestEvent>(subscriber));
Assert.True(collection.Remove <NamedEvent>(subscriber));
Assert.False(collection.Remove <NamedEvent>(subscriber));
Assert.True(collection.Remove <TestEvent>(subscriber));
Assert.False(collection.Remove <TestEvent>(subscriber));
}
public static void MixedIndividualOrCompleteAdditionRemoval()
{
var subscriber = new TestEventHandler();
var collection = new EventSubscriberCollection();
// add individually
Assert.True(collection.Add <NamedEvent>(subscriber));
Assert.True(collection.Add <TestEvent>(subscriber));
// remove all
Assert.True(collection.RemoveAll(subscriber));
// check individually
Assert.False(collection.Remove <NamedEvent>(subscriber));
Assert.False(collection.Remove <TestEvent>(subscriber));
// add all
Assert.True(collection.AddAll(subscriber));
// remove individually
Assert.True(collection.Remove <NamedEvent>(subscriber));
Assert.True(collection.Remove <TestEvent>(subscriber));
// check all
Assert.False(collection.RemoveAll(subscriber));
// add all
Assert.True(collection.AddAll(subscriber));
// remove some
Assert.True(collection.Remove <NamedEvent>(subscriber));
// remove rest
Assert.True(collection.RemoveAll(subscriber));
// check
Assert.False(collection.RemoveAll(subscriber));
}
public static void AddRemoveIndividualEventHandlers()
{
var subscriber = new TestEventHandler();
var collection = new EventSubscriberCollection();
// invalid argument tests
Assert.Throws <ArgumentNullException>(() => collection.Add <EventBase>(null, weakRef: true));
Assert.Throws <ArgumentNullException>(() => collection.Add <EventBase>(null, weakRef: false));
Assert.Throws <ArgumentNullException>(() => collection.Remove <EventBase>(null));
// can not remove, what's not there
Assert.False(collection.Remove <NamedEvent>(subscriber));
Assert.False(collection.Remove <TestEvent>(subscriber));
// add
Assert.True(collection.Add <NamedEvent>(subscriber, weakRef: false));
Assert.False(collection.Add <NamedEvent>(subscriber, weakRef: false)); // subscribers only added once
Assert.False(collection.Add <NamedEvent>(subscriber, weakRef: true)); // the type of reference used does not change this
// remove
Assert.True(collection.Remove <NamedEvent>(subscriber));
Assert.False(collection.Remove <NamedEvent>(subscriber));
}