如何在bUnit测试中模拟注入的ILocalStorageService依赖？

我正在用bUnit测试Blazor组件，在模拟组件中注入的ILocalStorageService依赖时遇到了问题。组件中的注入代码如下：

[Inject]
public ILocalStorageService LocalStorage { get; set; } = null!;

创建被测组件实例的基础代码是这样的：

TestComponentSender cut = RenderComponent<TestComponentSender>(ps => ps
    .Add(p => p.NotificationHelper, new TestNotificationHelper())
).Instance;

由于LocalStorage是注入属性而非组件参数，我没法像处理NotificationHelper那样用Add方法直接传入。

我尝试过几种方法，但都失败了：

尝试1：直接注册服务 #

在创建组件前添加以下代码：

Services.AddScoped<ILocalStorageService>();

运行测试时抛出异常：

Cannot instantiate implementation type 'Blazored.LocalStorage.ILocalStorageService' for service type 'Blazored.LocalStorage.ILocalStorageService'

尝试2：用NSubstitute手动赋值 #

引用NSubstitute NuGet包后，在创建组件实例后手动赋值：

cut.LocalStorage = Substitute.For<ILocalStorageService>();

依然抛出异常：

Cannot provide a value for property 'LocalStorage' on type 'InspiredGiving.Crm.Areas.General.Shared.TestComponentSender'. There is no registered service of type 'Blazored.LocalStorage.ILocalStorageService'.

更新：尝试bUnit的Blazored.LocalStorage扩展 #

根据Egil的回答，我安装了bUnit相关测试包，并参照示例编写了代码：

TestComponentSender cut = RenderComponent<TestComponentSender>(ps => ps
  .Add(p => p.NotificationHelper, new TestNotificationHelper())
).Instance;
cut.LocalStorage = this.AddBlazoredLocalStorage();

还是遇到相同的异常：

System.InvalidOperationException: Cannot provide a value for property 'LocalStorage' on type 'InspiredGiving.Crm.Areas.General.Shared.TestComponentSender'. There is no registered service of type 'Blazored.LocalStorage.ILocalStorageService'

之后又尝试了Robert Harvey提到的方法：

Services.AddScoped<ILocalStorageService>(_ => this.AddBlazoredLocalStorage());

结果依旧抛出上述异常。

请问该如何正确模拟这个注入的依赖？

内容的提问来源于stack exchange，提问作者Avrohom Yisroel