Question

我尝试使用以下方法测试Mock HttpContext.Current.Application 第三个库：

HttpContext.Current.Application.Add ( "key","value");
HttpContext.Current.Application.Get ("key");

我测试了许多模拟框架Moq，RhinoMock，FakeSystemWeb，FakeHttpContext 但是不可能在Application Dictionary中添加值，总是 HttpContext.Current.Application.Count == 0

唯一有效的解决方案是使用Microsoft.Fakes，但是它只有Premium和Ultimate版本，而我只为专业版提供测试的开发人员!!

使用Microsoft.Fakes（可行）：

 public MockHttpContext()
 {
      //MOCK System.Web
      _shimsContext = ShimsContext.Create();
      var httpRequest = new HttpRequest("", "http://www.monsite.com", "");
      var httpContext = new HttpContext(httpRequest, new(HttpResponse(new(StringWriter()));
      var applicationState = httpContext.Application;
      System.Web.Fakes.ShimHttpContext.CurrentGet = () => httpContext;
      System.Web.Fakes.ShimHttpContext.AllInstances.ApplicationGet = context => applicationState;
   }

您是否有想法或如何分发我的测试Microsoft.Fakes，或另一个Mocking框架？

谢谢。

Answer 1

模仿HttpContext的优秀框架是Typemock Isolator。你可以像下面的例子那样做：

 [TestMethod, Isolated]
 public void TestMethod1()
 {
     var httpRequest = new HttpRequest("", "http://www.monsite.com", "");
     var httpContext = new HttpContext(httpRequest, new HttpResponse(new StringWriter()));
     var httpApp = httpContext.Application;

     Isolate.Fake.AllInstances<HttpContext>();

     Isolate.WhenCalled(() => HttpContext.Current).WillReturn(httpContext);
     Isolate.WhenCalled(() => HttpContext.Current.Application).WillReturn(httpApp);

     HttpContext.Current.Application.Add("key1", "value1");
     HttpContext.Current.Application.Add("key2", "value2");
     HttpContext.Current.Application.Add("key3", "value3");

     Assert.AreEqual(3, HttpContext.Current.Application.Count);
     Assert.AreEqual("value1", HttpContext.Current.Application.Get("key1"));
}

Answer 2

你应该总是在你的应用程序中使用HttpContextBase，HttpRequestBase和HttpResponseBase作为与不可测试的具体版本相关的（没有typemock，Microsoft.Fakes或其他一些魔法）。

只需使用HttpContextWrapper类进行转换，如下所示。

var httpContextBase = new HttpContextWrapper(HttpContext.Current);

Answer 3

Prig可以。您可以编写代码来模拟HttpContext，如下所示：

public MockHttpContext()
{
    //MOCK System.Web
    _indirectionsContext = new IndirectionsContext();
    var httpRequest = new HttpRequest("", "http://www.monsite.com", "");
    var httpContext = new HttpContext(httpRequest, new HttpResponse(new StringWriter()));
    var applicationState = httpContext.Application;
    System.Web.Prig.PHttpContext.CurrentGet().Body = () => httpContext;
    System.Web.Prig.PHttpContext.ApplicationGet().Body = context => applicationState;
}

模拟HttpContext.Current.Application

3 个答案: