MSTest：用于注销的单元测试 HttpContext.SignoutAsync答案

【问题标题】：MSTest: Unit Testing HttpContext.SignoutAsync for the logoutMSTest：用于注销的单元测试 HttpContext.SignoutAsync
【发布时间】：2022-02-18 12:10:53
【问题描述】：

在单元测试注销功能时简单地将 Mock HttpContext 传递给控制器上下文将引发以下错误 HttpContext.Signout + 值不能为空（参数'provider'）

var mockHttpContext = new Mock<HttpContext>();

//设置控制器HttpContext

_controller.ControllerContext.HttpContext = mockHttpContext.Object;

// 现在调用注销操作方法和测试结果

【问题讨论】：

标签： mstest httpcontext

【解决方案1】：

如果您深入到 SigOutAsync 代码的定义，它期望 Authentication Service Provider 不应为 null 。因此，除了模拟 HttpContext 之外，您还需要模拟将解决问题的服务提供者。

       //mock the Http Context along with Service provider
        var mockHttpContext = new Mock<HttpContext>();
        var authServiceMock = new Mock<IAuthenticationService>();
        authServiceMock.Setup(_ => _.SignOutAsync(It.IsAny<HttpContext>(), It.IsAny<string>(),It.IsAny<AuthenticationProperties>())).Returns(Task.FromResult((object)null));
        var serviceProviderMock = new Mock<IServiceProvider>();
        serviceProviderMock.Setup(_ => _.GetService(typeof(IAuthenticationService)))
            .Returns(authServiceMock.Object);
        mockHttpContext.Setup(x => x.RequestServices)
          .Returns(serviceProviderMock.Object);

        //set the controller HttpContext
        _controller.ControllerContext.HttpContext = mockHttpContext.Object;
       // Now call the Logout and Test

在测试登录功能时可以应用类似的逻辑

也可以参考这里-How to unit test HttpContext.SignInAsync()?

【讨论】：