4、本例是为了对URL做单元测试，在11-3URLTestDemo项目中，打开Global.asax.cs文件，将RegisterRoutes函数修改如下：

 

public static void RegisterRoutes(RouteCollection routes)
{
routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
routes.MapRoute("MyRoute"， "{controller}/{action}");
}

　　然后再在RegisterRoutes函数上点鼠标右键，选择Create Unit Tests，创建单元测试的文件，这里会在项目URLTestDemo.UnitTests中产生一个名字为

 

MvcApplicationTest.cs的文件，打开该文件，将MvcApplicationTest类中的原有内容删除，修改如下：
namespace URLTestDemo.UnitTests
{
[TestClass()]
public class MvcApplicationTest
{
private HttpContextBase CreateHttpContext(string targetUrl=null，
string httpMethod = "GET")
{
Mock<HttpRequestBase> mockRequest = new Mock<HttpRequestBase>();
mockRequest.Setup(m => m.AppRelativeCurrentExecutionFilePath).Returns(targetUrl);
mockRequest.Setup(m => m.HttpMethod).Returns(httpMethod);
Mock<HttpResponseBase> mockResponse = new Mock<HttpResponseBase>();
mockResponse.Setup(m => m.ApplyAppPathModifier(
It.IsAny<string>())).Returns<string>(s => s);
Mock<HttpContextBase> mockContext = new Mock<HttpContextBase>();
mockContext.Setup(m => m.Request).Returns(mockRequest.Object);
mockContext.Setup(m => m.Response).Returns(mockResponse.Object);
return mockContext.Object;
}
private void TestRouteMatch(string url， string controller，
string action， object routeProperties = null，
string httpMethod = "GET")
{
//布置
RouteCollection routes = new RouteCollection();
MvcApplication.RegisterRoutes(routes);
//动作
RouteData result = routes.GetRouteData(CreateHttpContext(url， httpMethod));
//断言
Assert.IsNotNull(result);
Assert.IsTrue(TestIncomingRouteResult(result， controller， action， routeProperties));
}
private bool TestIncomingRouteResult(RouteData routeResult，
string controller， string action， object propertySet = null)
{
Func<object， object， bool> valCompare = (v1， v2) =>
{
return StringComparer.InvariantCultureIgnoreCase.Compare(v1， v2) == 0;
};
bool result = valCompare(routeResult.Values["controller"]， controller)
&& valCompare(routeResult.Values["action"]， action);
if (propertySet != null)
{
PropertyInfo[] propInfo = propertySet.GetType().GetProperties();
foreach (PropertyInfo pi in propInfo)
{
if (!(routeResult.Values.ContainsKey(pi.Name) &&
valCompare(routeResult.Values[pi.Name]， pi.GetValue(propertySet， null))))
{
result = false;
break;
}
}
}
return result;
}
private void TestRouteFail(string url)
{
//布置
RouteCollection routes = new RouteCollection();
MvcApplication.RegisterRoutes(routes);
//动作
RouteData result = routes.GetRouteData(CreateHttpContext(url));
//断言
Assert.IsTrue(result == null || result.Route == null);
}
[TestMethod]
public void TestIncomingRoutes()
{
TestRouteMatch("~/Admin/Index"， "Admin"， "Index");
TestRouteMatch("~/One/Two"， "One"， "Two");
TestRouteFail("~/Admin/Index/Segment");
TestRouteFail("~/Admin");
}
}
}

　　5、接下来，在菜单上选择Test -> Run -> All Tests in Solution，执行单元测试。