UnitTest.java

private static IContainer MiddleCompany()
{
    ContainerBuilder builder = new ContainerBuilder();

    //在仲介公司裡寫需求人申請單
    builder.RegisterType<MineWithMiddle>();
    //小明所需打掃阿姨需求
    builder.RegisterType<Aunt>().As<ISwapable>();

    return builder.Build();
}

IContainer middleCompany = MiddleCompany();
//仲介公司(IOC AutoFac)自動幫小明注入一個打掃阿姨
MineWithMiddle mineWithMiddle = middleCompany.Resolve<MineWithMiddle>();

mineWithMiddle.Room();