public void Mvc_DependencyResolver_GetService_should_return_null_for_unregistered_types()
{
ApplicationDependencyInjection di = new ApplicationDependencyInjectionBuilder()
.ConfigureServices(services => { })
.AddMvcDependencyResolver()
.Build();
using ( di )
{
DependencyInjectionMvcDependencyResolver mvcResolverInstance = di.GetClients()
.OfType <DependencyInjectionMvcDependencyResolver>()
.Single();
//
IDependencyResolver mvcResolver = mvcResolverInstance;
//
{
Object implementation = mvcResolver.GetService(typeof(INonRegisteredService));
implementation.ShouldBeNull();
}
// And call it again for good measure:
{
Object implementation = mvcResolver.GetService(typeof(INonRegisteredService));
implementation.ShouldBeNull();
}
}
}
public void Mvc_DependencyResolver_GetServices_should_return_empty_enumerable_when_unresolved()
{
ApplicationDependencyInjection di = new ApplicationDependencyInjectionBuilder()
.ConfigureServices(services => { })
.AddMvcDependencyResolver()
.Build();
using ( di )
{
DependencyInjectionMvcDependencyResolver mvcResolverInstance = di.GetClients()
.OfType <DependencyInjectionMvcDependencyResolver>()
.Single();
//
IDependencyResolver mvcResolver = mvcResolverInstance;
//
IEnumerable <Object> services = mvcResolver.GetServices(typeof(INonRegisteredService));
_ = services.ShouldNotBeNull();
services.Count().ShouldBe(expected: 0);
// Check twice, in case of IEnumerable<T> implementation shenanigans:
services.Count().ShouldBe(expected: 0);
}
}
// See \AspNetWebStack\test\System.Web.Mvc.Test\Test\DependencyResolverTest.cs
/// <summary>Don't call this method from tests that verify this logic works, like <see cref="AddWebApiDependencyResolver_should_add_single_DependencyInjectionWebApiDependencyResolver"/>.</summary>
private static ApplicationDependencyInjection CreateMvcDIWithTestServiceRegistrations(out IDependencyResolver mvcResolver)
{
ApplicationDependencyInjection di = new ApplicationDependencyInjectionBuilder()
.ConfigureServices(services => {
_ = services.AddTransient <ITestTransient, TestTransient>();
_ = services.AddScoped <ITestScoped, TestScoped>();
_ = services.AddSingleton <ITestSingleton, TestSingleton>();
_ = services.AddSingleton <TestAbstractClass, TestAbstractImpl>();
_ = services.AddSingleton(serviceType: typeof(ITestGeneric <>), implementationType: typeof(TestestGeneric <>));
})
.AddMvcDependencyResolver()
.Build();
DependencyInjectionMvcDependencyResolver mvcResolverInstance = di.GetClients()
.OfType <DependencyInjectionMvcDependencyResolver>()
.Single();
mvcResolver = mvcResolverInstance;
return(di);
}
