如何模拟httpcontext以使它不是单元测试中的null？

Question

我正在编写单元测试,并且控制器方法抛出异常,因为HttpContext/ControllerContext为null.我不需要从HttpContext断言任何东西,只需要它不是NULL.我做过研究,我相信Moq就是答案.但是我见过的所有样本都没有给我很多帮助.我不需要做任何花哨的事情,只是为了模拟httpcontext.指出我正确的方向!

Answer 1

从这里得到这两个函数;

public static class HttpContextFactory
    {
        public static void SetFakeAuthenticatedControllerContext(this Controller controller)
        {

            var httpContext = FakeAuthenticatedHttpContext();
            ControllerContext context =
            new ControllerContext(
            new RequestContext(httpContext,
            new RouteData()), controller);
            controller.ControllerContext = context;

        }


        private static HttpContextBase FakeAuthenticatedHttpContext()
        {
            var context = new Mock<HttpContextBase>();
            var request = new Mock<HttpRequestBase>();
            var response = new Mock<HttpResponseBase>();
            var session = new Mock<HttpSessionStateBase>();
            var server = new Mock<HttpServerUtilityBase>();
            var user = new Mock<IPrincipal>();
            var identity = new Mock<IIdentity>();

            context.Setup(ctx => ctx.Request).Returns(request.Object);
            context.Setup(ctx => ctx.Response).Returns(response.Object);
            context.Setup(ctx => ctx.Session).Returns(session.Object);
            context.Setup(ctx => ctx.Server).Returns(server.Object);
            context.Setup(ctx => ctx.User).Returns(user.Object);
            user.Setup(ctx => ctx.Identity).Returns(identity.Object);
            identity.Setup(id => id.IsAuthenticated).Returns(true);
            identity.Setup(id => id.Name).Returns("a.ali174");

            return context.Object;
        }


    }

从单元测试我这样称呼他们;

 HttpContextFactory.SetFakeAuthenticatedControllerContext(controller);

确保在测试项目中安装了Moq:

Install-Package Moq