如何使用Rhino Mocks存根ninject的IKernel？

Question

var mocks = new MockRepository();
var access = new Access();
access.ShowRepository = _mocks.Stub<IShowRepository>();
access.ShowRepository.Stub(x => x.GetShows()).Return(new List<Show>());
var kernel =_mocks.Stub<IKernel>();
kernel.Stub(x => x.Get<Access>()).Return(access);

这将引发ArgumentNullException：

消息：值不能为空。
参数名称：来源

堆栈跟踪：位于MediaMover.Unit.Tests.ViewModelTests.OptionsViewModelTests.b__1（IKernel）的Ninject.ResolutionExtensions.Get [T]（IResolutionRoot根，IParameter []参数）的System.Linq.Enumerable.Cast [TResult]（IEnumerable源） x）在C：\\ Users \\ Dave \\ Documents \\ Visual Studio 2010 \\ Projects \\ Gigatube \\ MediaMover.Unit.Tests \\ ViewModelTests \\ OptionsViewModelTests.cs：Rhino.Mocks.RhinoMocksExtensions.Expect [T，R]（T模拟， 2 action) at Rhino.Mocks.RhinoMocksExtensions.Stub[T,R](T mock, Function位于2 action) at Rhino.Mocks.RhinoMocksExtensions.Stub[T,R](T mock, Function 2动作）在MediaMover.Unit.Tests.ViewModelTests.OptionsViewModelTests.Initialize（）在C：\\ Users \\ Dave \\ Documents \\ Visual Studio 2010 \\ Projects \\ Gigatube \\ MediaMover.Unit.Tests \\ ViewModelTests \\ OptionsViewModelTests.cs：第33行

Answer 1

我能够解决这个问题，我必须创建一个测试模块和一个测试提供程序，然后将模拟传递给它们。

class DbAccessProvider : Provider<Access>
    {
        public Access DbAccess { get; set; }
        protected override Access CreateInstance(IContext context)
        {
            return DbAccess;
        }
    }

class TestModule : NinjectModule
    {
        public DbAccessProvider DbAccessProvider { get; set; }
        public override void Load()
        {
            Bind<Access>().ToProvider(DbAccessProvider);
        }
    }

这是我测试中的设置：

access = new Access();
access.SettingsRepository = MockRepository.GenerateStub<ISettingsRepository>();
access.ShowRepository = MockRepository.GenerateStub<IShowRepository>();
access.SettingsRepository.Stub(x => x.GetById(1)).Return(_settings);
DbAccessProvider dbAccessProvider = new DbAccessProvider();
dbAccessProvider.DbAccess = access;
TestModule testModule = new TestModule();
testModule.DbAccessProvider = dbAccessProvider;
var kernel = new StandardKernel(testModule);
target = new OptionsViewModel(kernel);