public void AddServiceCollection_WithExistingServiceCollectionAndWithNullServiceCollection_ExceptionThrown()
{
Action act = () =>
{
HttpApplicationExtensions.AddServiceCollection(new HttpApplication(), null);
};
act.Should().Throw <ArgumentNullException>()
.And.ParamName.Should().Be("serviceCollection");
}
public void AddServiceCollection_WithExistingCollection()
{
// Creates a HttpContext
var application = new HttpApplicationMock();
var request = new HttpRequest("The filename", "http://theurl", "");
var response = new HttpResponse(new StringWriter());
var session = FormatterServices.GetUninitializedObject(typeof(HttpSessionState));
HttpContext.Current = new HttpContext(request, response)
{
ApplicationInstance = application,
Items =
{
{ "AspSession", session }
}
};
try
{
var collection = new ServiceCollection();
collection.AddSingleton <IService, Service>();
collection.AddSingleton <IDependentService, DependentService>();
var returnedCollection = HttpApplicationExtensions.AddServiceCollection(application, collection);
returnedCollection.Should().BeSameAs(collection);
// Checks the WebObjectActivator has been defined correctly
HttpRuntime.WebObjectActivator.Should().BeOfType <ServiceProviderAdapter>();
// Checks the services
HttpRuntime.WebObjectActivator.GetService(typeof(IService)).As <Service>().Should().NotBeNull();
HttpRuntime.WebObjectActivator.GetService(typeof(HttpApplication)).Should().BeSameAs(application);
HttpRuntime.WebObjectActivator.GetService(typeof(HttpApplicationMock)).Should().BeSameAs(application);
HttpRuntime.WebObjectActivator.GetService(typeof(HttpRequest)).Should().BeSameAs(request);
HttpRuntime.WebObjectActivator.GetService(typeof(HttpResponse)).Should().BeSameAs(response);
HttpRuntime.WebObjectActivator.GetService(typeof(HttpSessionState)).Should().BeSameAs(session);
// Checks the next provider in the adapter has been defined correctly
HttpRuntime.WebObjectActivator.GetFieldValue <IServiceProvider>("nextProvider").Should().BeSameAs(this.existingProvider);
// Checks the adapter has been registered on the hosting environment infrastructure
typeof(HostingEnvironment).GetStaticValue <object>("_theHostingEnvironment").GetFieldValue <Hashtable>("_registeredObjects").ContainsKey(HttpRuntime.WebObjectActivator);
typeof(HostingEnvironment).GetStaticValue <object>("_theHostingEnvironment").GetFieldValue <Hashtable>("_registeredObjects").ContainsValue(HttpRuntime.WebObjectActivator);
}
finally
{
HttpContext.Current = null;
}
}
