public void WhenMultipleProvidersOfServiceExist_DefaultRegistrationIsMostRecent()
{
var r1 = Factory.CreateSingletonObjectRegistration();
var r2 = Factory.CreateSingletonObjectRegistration();
var registry = new ComponentRegistry();
registry.Register(r1);
registry.Register(r2);
IComponentRegistration defaultRegistration;
Assert.True(registry.TryGetRegistration(new TypedService(typeof(object)), out defaultRegistration));
Assert.Same(r2, defaultRegistration);
}
public void WhenRegistrationProvidedExplicitlyAndThroughRegistrationSource_ExplicitRegistrationIsDefault()
{
var r = Factory.CreateSingletonObjectRegistration();
var registry = new ComponentRegistry();
registry.Register(r);
registry.AddRegistrationSource(new ObjectRegistrationSource());
IComponentRegistration defaultForObject;
registry.TryGetRegistration(new TypedService(typeof(object)), out defaultForObject);
Assert.AreSame(r, defaultForObject);
}
public void WhenNoImplementers_TryGetRegistrationReturnsFalse()
{
var registry = new ComponentRegistry();
IComponentRegistration unused;
Assert.IsFalse(registry.TryGetRegistration(new TypedService(typeof(object)), out unused));
}
public void WhenNoImplementerIsDirectlyRegistered_RegistrationCanBeProvidedDynamically()
{
var registry = new ComponentRegistry();
registry.AddRegistrationSource(new ObjectRegistrationSource());
IComponentRegistration registration;
Assert.IsTrue(registry.TryGetRegistration(new TypedService(typeof(object)), out registration));
}
public void LastRegistrationSourceRegisteredIsTheDefault()
{
var first = new object();
var second = new object();
var registry = new ComponentRegistry();
registry.AddRegistrationSource(new ObjectRegistrationSource(first));
registry.AddRegistrationSource(new ObjectRegistrationSource(second));
IComponentRegistration def;
registry.TryGetRegistration(new TypedService(typeof(object)), out def);
var result = def.Activator.ActivateInstance(new ContainerBuilder().Build(), Enumerable.Empty<Parameter>());
Assert.AreEqual(result, second);
}
