private void CreateABunchOfRefs(SafeEventManager <object> manager)
{
for (var i = 0; i < 100; ++i)
{
var instance = new TestObject();
manager.AddHandler(instance, x => x.TestHandler);
}
}
public void It_calls_a_registered_handler()
{
TestObject.InvokeCount = 0;
var manager = new SafeEventManager <object>();
var message = new object();
var target = new TestObject();
manager.AddHandler(target, x => x.TestHandler);
manager.Invoke(message);
Assert.Equal(1, TestObject.InvokeCount);
Assert.True(object.ReferenceEquals(message, target.Message));
}
public void It_can_clear_up_dead_references()
{
TestObject.InvokeCount = 0;
var manager = new SafeEventManager <object>();
CreateABunchOfRefs(manager);
var message = new object();
var target = new TestObject();
manager.AddHandler(target, x => x.TestHandler);
GC.Collect();
GC.WaitForPendingFinalizers();
manager.Invoke(message);
Assert.Equal(1, TestObject.InvokeCount);
Assert.True(object.ReferenceEquals(message, target.Message));
}
public void It_doesnt_call_an_unregistered_handler()
{
TestObject.InvokeCount = 0;
var manager = new SafeEventManager <object>();
var message = new object();
var target1 = new TestObject();
manager.AddHandler(target1, x => x.TestHandler);
var target2 = new TestObject();
manager.AddHandler(target2, x => x.TestHandler);
manager.RemoveHandler(target2.TestHandler);
manager.Invoke(message);
Assert.Equal(1, TestObject.InvokeCount);
Assert.True(object.ReferenceEquals(message, target1.Message));
}
