我有一个web服务，我试图单元测试。在服务中，它从HttpContext中提取了几个值，如下所示:
m_password = (string)HttpContext.Current.Session["CustomerId"];
m_userID = (string)HttpContext.Current.Session["CustomerUrl"];
在单元测试中，我使用一个简单的工作请求创建上下文，如下所示:
SimpleWorkerRequest request = new SimpleWorkerRequest("", "", "", null, new StringWriter());
HttpContext context = new HttpContext(request);
HttpContext.Current = context;
然而，每当我试图设置HttpContext.Current.Session的值时
HttpContext.Current.Session["CustomerId"] = "customer1";
HttpContext.Current.Session["CustomerUrl"] = "customer1Url";
我得到空引用异常，说HttpContext.Current.Session是空的。
是否有方法在单元测试中初始化当前会话?
在asp.net Core / MVC 6 rc2中，你可以设置HttpContext
var SomeController controller = new SomeController();
controller.ControllerContext = new ControllerContext();
controller.ControllerContext.HttpContext = new DefaultHttpContext();
controller.HttpContext.Session = new DummySession();
Rc 1为
var SomeController controller = new SomeController();
controller.ActionContext = new ActionContext();
controller.ActionContext.HttpContext = new DefaultHttpContext();
controller.HttpContext.Session = new DummySession();
https://stackoverflow.com/a/34022964/516748
考虑使用Moq
new Mock<ISession>();
试试这个:
// MockHttpSession Setup
var session = new MockHttpSession();
// MockHttpRequest Setup - mock AJAX request
var httpRequest = new Mock<HttpRequestBase>();
// Setup this part of the HTTP request for AJAX calls
httpRequest.Setup(req => req["X-Requested-With"]).Returns("XMLHttpRequest");
// MockHttpContextBase Setup - mock request, cache, and session
var httpContext = new Mock<HttpContextBase>();
httpContext.Setup(ctx => ctx.Request).Returns(httpRequest.Object);
httpContext.Setup(ctx => ctx.Cache).Returns(HttpRuntime.Cache);
httpContext.Setup(ctx => ctx.Session).Returns(session);
// MockHttpContext for cache
var contextRequest = new HttpRequest("", "http://localhost/", "");
var contextResponse = new HttpResponse(new StringWriter());
HttpContext.Current = new HttpContext(contextRequest, contextResponse);
// MockControllerContext Setup
var context = new Mock<ControllerContext>();
context.Setup(ctx => ctx.HttpContext).Returns(httpContext.Object);
//TODO: Create new controller here
// Set controller's ControllerContext to context.Object
并添加类:
public class MockHttpSession : HttpSessionStateBase
{
Dictionary<string, object> _sessionDictionary = new Dictionary<string, object>();
public override object this[string name]
{
get
{
return _sessionDictionary.ContainsKey(name) ? _sessionDictionary[name] : null;
}
set
{
_sessionDictionary[name] = value;
}
}
public override void Abandon()
{
var keys = new List<string>();
foreach (var kvp in _sessionDictionary)
{
keys.Add(kvp.Key);
}
foreach (var key in keys)
{
_sessionDictionary.Remove(key);
}
}
public override void Clear()
{
var keys = new List<string>();
foreach (var kvp in _sessionDictionary)
{
keys.Add(kvp.Key);
}
foreach(var key in keys)
{
_sessionDictionary.Remove(key);
}
}
}
这将允许您同时测试会话和缓存。
我们必须通过使用HttpContextManager来模拟HttpContext，并从我们的应用程序和单元测试中调用工厂
public class HttpContextManager
{
private static HttpContextBase m_context;
public static HttpContextBase Current
{
get
{
if (m_context != null)
return m_context;
if (HttpContext.Current == null)
throw new InvalidOperationException("HttpContext not available");
return new HttpContextWrapper(HttpContext.Current);
}
}
public static void SetCurrentContext(HttpContextBase context)
{
m_context = context;
}
}
然后替换所有对HttpContext的调用。当前与HttpContextManager。当前和已获得相同的方法。然后在测试时，您还可以访问HttpContextManager并模拟您的期望
这是一个使用Moq的例子:
private HttpContextBase GetMockedHttpContext()
{
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>();
var urlHelper = new Mock<UrlHelper>();
var routes = new RouteCollection();
MvcApplication.RegisterRoutes(routes);
var requestContext = new Mock<RequestContext>();
requestContext.Setup(x => x.HttpContext).Returns(context.Object);
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("test");
request.Setup(req => req.Url).Returns(new Uri("http://www.google.com"));
request.Setup(req => req.RequestContext).Returns(requestContext.Object);
requestContext.Setup(x => x.RouteData).Returns(new RouteData());
request.SetupGet(req => req.Headers).Returns(new NameValueCollection());
return context.Object;
}
然后在单元测试中使用它，我在Test Init方法中调用它
HttpContextManager.SetCurrentContext(GetMockedHttpContext());
然后，您可以在上面的方法中添加来自Session的预期结果，您希望它可以用于您的web服务。
如果您正在使用MVC框架，这应该可以工作。我使用Milox的FakeHttpContext并添加了一些额外的代码行。这个想法来自这个帖子:
http://codepaste.net/p269t8
这似乎在MVC 5中工作。我还没有尝试在早期版本的MVC。
HttpContext.Current = MockHttpContext.FakeHttpContext();
var wrapper = new HttpContextWrapper(HttpContext.Current);
MyController controller = new MyController();
controller.ControllerContext = new ControllerContext(wrapper, new RouteData(), controller);
string result = controller.MyMethod();
