我最终通过在网上找到一些代码成功使得HttpContext.Current
不再为空。但是我仍然无法在单元测试中向请求添加自定义标头。以下是我的测试:
[TestClass]
public class TagControllerTest
{
private static Mock<IGenericService<Tag>> Service { get; set; }
private TagController controller;
[TestInitialize]
public void ThingServiceTestSetUp()
{
Tag tag = new Tag(1, "people");
Response<Tag> response = new Response<Tag>();
response.PayLoad = new List<Tag>() { tag };
Service = new Mock<IGenericService<Tag>>(MockBehavior.Default);
Service.Setup(s => s.FindAll("username", "password", "token")).Returns(response);
controller = new TagController(Service.Object);
HttpContext.Current = FakeHttpContext();
}
public static HttpContext FakeHttpContext()
{
var httpRequest = new HttpRequest("", "http://kindermusik/", "");
var stringWriter = new StringWriter();
var httpResponce = new HttpResponse(stringWriter);
var httpContext = new HttpContext(httpRequest, httpResponce);
var sessionContainer = new HttpSessionStateContainer("id", new SessionStateItemCollection(),
new HttpStaticObjectsCollection(), 10, true,
HttpCookieMode.AutoDetect,
SessionStateMode.InProc, false);
httpContext.Items["AspSession"] = typeof(HttpSessionState).GetConstructor(
BindingFlags.NonPublic | BindingFlags.Instance,
null, CallingConventions.Standard,
new[] { typeof(HttpSessionStateContainer) },
null)
.Invoke(new object[] { sessionContainer });
httpContext.Request.Headers["username"] = "username"; //It throws a PlatformNotSupportedException exception
httpContext.Request.Headers["password"] = "password"; //.Headers.Add("blah", "blah") throws same error
httpContext.Request.Headers["token"] = "token"; //And so to .Headers.Set("blah", "blah")
return httpContext;
}
[TestMethod]
public void TagControllerGetTest()
{
// Arrange
Response<Tag> result = controller.Get();
// Assert
Assert.AreEqual(true, result.IsSuccess);
Assert.AreEqual(1, result.PayLoad.Count);
Assert.AreEqual("people", result.PayLoad[0].Name);
}
这是正在被测试的代码。
public class TagController : ApiController
{
public IGenericService<Tag> _service;
public TagController()
{
_service = new TagService();
}
public TagController(IGenericService<Tag> service)
{
this._service = service;
}
// GET api/values
public Response<Tag> Get()
{
HttpContext context = HttpContext.Current;
string username = context.Request.Headers["username"].ToString();
string password = context.Request.Headers["password"].ToString();
string token = context.Request.Headers["token"].ToString();
return (Response<Tag>) _service.FindAll(username, password, token);
}
}