public void AddHandlerThrowsIfArgumentIsNUll()
{
var dispatcher = new RegistrationDependencyDispatcher <string>("Foo");
Assert.Throws <ArgumentNullException>(() =>
{
dispatcher.AddHandler <object>(null);
});
}
public void SameHandlerIsOnlyAddedOnce()
{
var dispatcher = new RegistrationDependencyDispatcher <string>("Foo");
var handler = new CountingCallsDependencyCommandHandler();
dispatcher.AddHandler(handler);
dispatcher.AddHandler(handler);
dispatcher.Dispatch(new EmptyCommand());
Assert.AreEqual(1, CountingCallsDependencyCommandHandler.Calls);
}
private static IEnumerable <IDispatcher> CreateRegistrationDispatchersWithHandlers()
{
var registrationDispatcher = new RegistrationDispatcher();
registrationDispatcher.AddHandler(new CalledCommandHandler());
registrationDispatcher.AddHandler(new FirstAllHandlersCalledHandler());
registrationDispatcher.AddHandler(new SecondAllHandlersCalledHandler());
yield return(registrationDispatcher);
var registrationDependencyDispatcher = new RegistrationDependencyDispatcher <string>("Foo");
registrationDependencyDispatcher.AddHandler(new CalledDependencyCommandHandler());
registrationDependencyDispatcher.AddHandler(new FirstAllDependencyHandlersCalledHandler());
registrationDependencyDispatcher.AddHandler(new FirstAllDependencyHandlersCalledHandler());
yield return(registrationDependencyDispatcher);
}
