Does UnitTest Project Support EF Core Lazy Loading?

I want to let Unit Test project support lazy loading feature which introduced in EF Core 2.1. Ref : https://docs.microsoft.com/en-us/ef/core/querying/related-data#lazy-loading

So, I Performed following steps try to reach the goal: Step1. Install-Package Microsoft.EntityFrameworkCore.Proxies on Unit Test Project. Step2. Add services.AddEntityFrameworkProxies(); statement in function Register(IIocManager iocManager) of ServiceCollectionRegistrar.cs Step3. In same file, add use lazy loading proxy like this : builder.UseLazyLoadingProxies().UseInMemoryDatabase(Guid.NewGuid().ToString()).UseInternalServiceProvider(serviceProvider); ABP package version: 4.0.1 Base on .Net Core

When I ran the test case, I got this exception message: Castle.MicroKernel.ComponentActivator.ComponentActivatorException : Factory method creating instances of component ‘Microsoft.EntityFrameworkCore.Infrastructure.IDbContextOptions_d4040eea-3d91-4e91-aee4-454219d15a92’ returned null. This is not allowed and most likely a bug in the factory method.

Any idea or suggestion about this problem？ Thanks in advance！

PS:

Result StackTrace:	
at Castle.MicroKernel.ComponentActivator.FactoryMethodActivator`1.Instantiate(CreationContext context)
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.InternalCreate(CreationContext context)
   at Castle.MicroKernel.ComponentActivator.AbstractComponentActivator.Create(CreationContext context, Burden burden)
   at Castle.MicroKernel.Lifestyle.AbstractLifestyleManager.CreateInstance(CreationContext context, Boolean trackedExternally)
   at Castle.MicroKernel.Lifestyle.ScopedLifestyleManager.<>c__DisplayClass4_0.<Resolve>b__0(Action`1 afterCreated)
   at Castle.MicroKernel.Lifestyle.Scoped.DefaultLifetimeScope.GetCachedInstance(ComponentModel model, ScopedInstanceActivationCallback createInstance)
   at Castle.MicroKernel.Lifestyle.ScopedLifestyleManager.Resolve(CreationContext context, IReleasePolicy releasePolicy)
   at Castle.Windsor.MsDependencyInjection.MsScopedLifestyleManager.Resolve(CreationContext context, IReleasePolicy releasePolicy) in D:\Github\castle-windsor-ms-adapter\src\Castle.Windsor.MsDependencyInjection\MsScopedLifestyleManager.cs:line 21
   at Castle.MicroKernel.Handlers.DefaultHandler.ResolveCore(CreationContext context, Boolean requiresDecommission, Boolean instanceRequired, Burden& burden)
   at Castle.MicroKernel.Handlers.DefaultHandler.Resolve(CreationContext context, Boolean instanceRequired)
   at Castle.MicroKernel.Resolvers.DefaultDependencyResolver.Resolve(CreationContext context, ISubDependencyResolver contextHandlerResolver, ComponentModel model, DependencyModel dependency)
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateConstructorArguments(ConstructorCandidate constructor, CreationContext context)
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.Instantiate(CreationContext context)
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.InternalCreate(CreationContext context)
   at Castle.MicroKernel.ComponentActivator.AbstractComponentActivator.Create(CreationContext context, Burden burden)
   at Castle.MicroKernel.Lifestyle.AbstractLifestyleManager.CreateInstance(CreationContext context, Boolean trackedExternally)
   at Castle.MicroKernel.Lifestyle.ScopedLifestyleManager.<>c__DisplayClass4_0.<Resolve>b__0(Action`1 afterCreated)
   at Castle.MicroKernel.Lifestyle.Scoped.DefaultLifetimeScope.GetCachedInstance(ComponentModel model, ScopedInstanceActivationCallback createInstance)
   at Castle.MicroKernel.Lifestyle.ScopedLifestyleManager.Resolve(CreationContext context, IReleasePolicy releasePolicy)
   at Castle.Windsor.MsDependencyInjection.MsScopedLifestyleManager.Resolve(CreationContext context, IReleasePolicy releasePolicy) in D:\Github\castle-windsor-ms-adapter\src\Castle.Windsor.MsDependencyInjection\MsScopedLifestyleManager.cs:line 21
   at Castle.MicroKernel.Handlers.DefaultHandler.ResolveCore(CreationContext context, Boolean requiresDecommission, Boolean instanceRequired, Burden& burden)
   at Castle.MicroKernel.Handlers.DefaultHandler.Resolve(CreationContext context, Boolean instanceRequired)
   at Castle.MicroKernel.DefaultKernel.ResolveComponent(IHandler handler, Type service, IDictionary additionalArguments, IReleasePolicy policy)
   at Castle.MicroKernel.DefaultKernel.Castle.MicroKernel.IKernelInternal.ResolveAll(Type service, IDictionary arguments, IReleasePolicy policy)
   at Castle.Windsor.MsDependencyInjection.ScopedWindsorServiceProvider.ResolveInstanceOrNull(Type serviceType, Boolean isOptional) in D:\Github\castle-windsor-ms-adapter\src\Castle.Windsor.MsDependencyInjection\ScopedWindsorServiceProvider.cs:line 86
   at Castle.Windsor.MsDependencyInjection.ScopedWindsorServiceProvider.GetServiceInternal(Type serviceType, Boolean isOptional) in D:\Github\castle-windsor-ms-adapter\src\Castle.Windsor.MsDependencyInjection\ScopedWindsorServiceProvider.cs:line 55
   at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetService[T](IServiceProvider provider)
   at Microsoft.EntityFrameworkCore.Proxies.Internal.ProxiesOptionsExtension.Validate(IDbContextOptions options)
   at Microsoft.EntityFrameworkCore.Internal.ServiceProviderCache.GetOrAdd(IDbContextOptions options, Boolean providerRequired)
   at Microsoft.EntityFrameworkCore.DbContext..ctor(DbContextOptions options)
   at Abp.Zero.EntityFrameworkCore.AbpZeroDbContext`4..ctor(DbContextOptions`1 options) in D:\Github\aspnetboilerplate\src\Abp.ZeroCore.EntityFrameworkCore\Zero\EntityFrameworkCore\AbpZeroDbContext.cs:line 68
   at AbpTest.EntityFrameworkCore.AbpTestDbContext..ctor(DbContextOptions`1 options) in C:\Workspace\Lab\4.0.1\aspnet-core\src\AbpTest.EntityFrameworkCore\EntityFrameworkCore\AbpTestDbContext.cs:line 14
   at lambda_method(Closure , Object[] )
   at Castle.Core.Internal.ReflectionUtil.Instantiate[TBase](Type subtypeofTBase, Object[] ctorArgs)
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateInstanceCore(ConstructorCandidate constructor, Object[] arguments, Type implType)
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateInstance(CreationContext context, ConstructorCandidate constructor, Object[] arguments)
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.InternalCreate(CreationContext context)
   at Castle.MicroKernel.ComponentActivator.AbstractComponentActivator.Create(CreationContext context, Burden burden)
   at Castle.MicroKernel.Lifestyle.AbstractLifestyleManager.CreateInstance(CreationContext context, Boolean trackedExternally)
   at Castle.MicroKernel.Lifestyle.AbstractLifestyleManager.Resolve(CreationContext context, IReleasePolicy releasePolicy)
   at Castle.MicroKernel.Handlers.DefaultHandler.ResolveCore(CreationContext context, Boolean requiresDecommission, Boolean instanceRequired, Burden& burden)
   at Castle.MicroKernel.Handlers.DefaultHandler.Resolve(CreationContext context, Boolean instanceRequired)
   at Castle.MicroKernel.DefaultKernel.ResolveComponent(IHandler handler, Type service, IDictionary additionalArguments, IReleasePolicy policy)
   at Castle.MicroKernel.DefaultKernel.Castle.MicroKernel.IKernelInternal.Resolve(Type service, IDictionary arguments, IReleasePolicy policy)
   at Castle.Windsor.WindsorContainer.Resolve[T]()
   at AbpTest.Tests.AbpTestTestBase.UsingDbContext(Nullable`1 tenantId, Action`1 action) in C:\Workspace\Lab\4.0.1\aspnet-core\test\AbpTest.Tests\AbpTestTestBase.cs:line 84
   at AbpTest.Tests.AbpTestTestBase.UsingDbContext(Action`1 action) in C:\Workspace\Lab\4.0.1\aspnet-core\test\AbpTest.Tests\AbpTestTestBase.cs:line 62
   at AbpTest.Tests.AbpTestTestBase..ctor() in C:\Workspace\Lab\4.0.1\aspnet-core\test\AbpTest.Tests\AbpTestTestBase.cs:line 33
   at AbpTest.Tests.Sessions.SessionAppService_Tests..ctor() in C:\Workspace\Lab\4.0.1\aspnet-core\test\AbpTest.Tests\Sessions\SessionAppService_Tests.cs:line 12
Result Message:	Castle.MicroKernel.ComponentActivator.ComponentActivatorException : Factory method creating instances of component 'Microsoft.EntityFrameworkCore.Infrastructure.IDbContextOptions_d4040eea-3d91-4e91-aee4-454219d15a92' returned null. This is not allowed and most likely a bug in the factory method.

[acjh]

Try calling UseLazyLoadingProxies() in *DbContextConfigurer instead.

public static void Configure(DbContextOptionsBuilder<AbpProjectNameDbContext> builder, ...)
{
    builder
        .UseLazyLoadingProxies()
        .UseSqlServer(...);
}

[OverwindSlash]

I also changed test cases to use lazy loading, they are all passed. Thank you for your work! @maliming