c# - 我如何模拟我的通用 Unity 解析包装器？接到电话是模棱两可的

Question

public T Resolve<T>() {
  return _container.Resolve<T>();
}

和

Mock<ServiceLocator> serviceLocator = new Mock<ServiceLocator>();
Mock<SecurityHelper> securityHelper= new Mock<SecurityHelper>();
serviceLocator.Setup(x => x.Resolve<SecurityHelper>()).Returns(securityHelper);

产生这个错误，我该如何解决这个问题？

Error 36 The call is ambiguous between the following methods or properties: 'Moq.Language.IReturns<MVCWebsite.Helpers.ServiceLocator,MVCWebsite.Helpers.SecurityHelper>.Returns(System.Func<MVCWebsite.Helpers.SecurityHelper>)' and 'Moq.Language.IReturns<MVCWebsite.Helpers.ServiceLocator,MVCWebsite.Helpers.SecurityHelper>.Returns(MVCWebsite.Helpers.SecurityHelper)' C:\dev\Foundation\Foundation.Test\Fixtures\Account\AccountCtrlFixture.cs 61 13 Foundation.Test

编辑:(在 Sergey 的帮助下，以下是最终的工作解决方案)

[Test]
        public void TestResolveMockPoc()
        {
            //Mock service locator object
            Mock<ServiceLocator> serviceLocator = new Mock<ServiceLocator>();

            //Mock appSettings object
            Mock<AppSettings> appSettings = new Mock<AppSettings>();
            appSettings.Object.AppName = "IfYouSeeThisPocIsWorking";

            //Mock Resolve method to return my mocked object, for this particular type.
            serviceLocator.Setup(x => x.Resolve<AppSettings>()).Returns(appSettings.Object);

            //Override ServiceLocator inside the ServiceLocator helper (this is what is called by actual project)
            ServiceLocator.Locator = serviceLocator.Object;

            //Assert if this Moq Poc worked :-) ;)
            string updatedAppName = ServiceLocator.AppSettings().AppName;
            Assert.AreEqual(ServiceLocator.AppSettings().AppName, "IfYouSeeThisPocIsWorking");


        }

Answer 1

我认为您需要做的是返回与您的 Mock SecurityHelper 关联的对象:

serviceLocator.Setup(x => x.Resolve<SecurityHelper>())
              .Returns<SecurityHelper>(securityHelper.Object);