public void LaterRegistrationsOverrideEarlierRegistrations()
{
var cb = new ContainerBuilder();
var instance1 = new ConcreteSampleService("one");
var instance2 = new ConcreteSampleService("two");
var instance3 = new ConcreteSampleService("three");
// register my service
cb.RegisterInstance(instance1)
.As <ISampleService>();
// later registration will override previous
cb.RegisterInstance(instance2)
.As <ISampleService>();
cb.RegisterInstance(instance3)
.As <ISampleService>()
// unless we use "PreserveExistingDefaults"
.PreserveExistingDefaults();
var container = cb.Build();
// The last registered instance will be resolved here
var service = container.Resolve <ISampleService>();
Assert.IsNotNull(service, "service");
Assert.AreEqual("two", service.Do(), @" ""two"" vs service.Do()");
}
public void CanRegisterDecorator()
{
var cb = new ContainerBuilder();
var instance1 = new ConcreteSampleService("one");
// register my service
cb.RegisterInstance(instance1)
.As <ISampleService>();
// register a decorator for the service
cb.RegisterDecorator <DecoratorService, ISampleService>();
var container = cb.Build();
var service = container.Resolve <ISampleService>() as DecoratorService;
Assert.IsNotNull(service, "service");
Assert.IsTrue(service.Do().Contains("<wrapped>"), @" service.Do().Contains(""<wrapped>"") ");
Assert.IsTrue(service.Do().Contains("one"), @" service.Do().Contains(""one"") ");
Assert.IsInstanceOf <ConcreteSampleService>(service.Inner);
}
public void CanGetAListOfAllRegisteredServices()
{
var cb = new ContainerBuilder();
var instance1 = new ConcreteSampleService("one");
var instance2 = new ConcreteSampleService("two");
var instance3 = new ConcreteSampleService("named");
// register multiple instances
// named service won't be included unless it is also registered without the name
cb.RegisterInstance(instance3)
.As <ISampleService>()
.Named <ISampleService>("name");
cb.RegisterInstance(instance1)
.As <ISampleService>();
cb.RegisterInstance(instance2)
.As <ISampleService>();
var container = cb.Build();
// The last registered instance will be resolved here
var service = container.Resolve <ISampleService>();
Assert.IsNotNull(service, "service");
Assert.AreEqual("two", service.Do(), @" ""two"" vs service.Do()");
// I can resolve IEnumerable<Type> even though I didn't explicitly register it
var services = container.Resolve <IEnumerable <ISampleService> >();
Assert.IsNotNull(services, "services");
Assert.AreEqual(services.Count(), 3, @" services.Count() vs 2");
// IList<Type> also works
var serviceList = container.Resolve <IList <ISampleService> >();
Assert.IsNotNull(serviceList, "serviceList");
}
