[英]Mock HttpActionContext for Unit Test
我有一個自定義授權屬性如下所示,我正在嘗試編寫單元測試來測試其功能。
public override void OnAuthorization(System.Web.Http.Controllers.HttpActionContext actionContext)
{
if (actionContext.Request.Headers.Authorization != null)
{
// get the Authorization header value from the request and base64 decode it
string userInfo = Encoding.Default.GetString(Convert.FromBase64String(actionContext.Request.Headers.Authorization.Parameter));
// custom authentication logic
if (string.Equals(userInfo, string.Format("{0}:{1}", "user", "pass")))
{
IsAuthorized(actionContext);
}
else
{
HandleUnauthorizedRequest(actionContext);
}
}
else
{
HandleUnauthorizedRequest(actionContext);
}
}
protected override void HandleUnauthorizedRequest(System.Web.Http.Controllers.HttpActionContext actionContext)
{
actionContext.Response = new HttpResponseMessage(System.Net.HttpStatusCode.Unauthorized)
{
ReasonPhrase = "Unauthorized"
};
}
我的問題是,當我嘗試測試時,我得到“System.NullReferenceException:對象引用沒有設置為對象的實例。” 我試圖設置actionContext的request.headers.authorization值,但它沒有setter。 當我嘗試模擬HttpActionContext時,它說它無法從模擬HttpActionContext轉換為真實的HttpActionContext。 下面是我的測試代碼
public class HttpBasicAuthorizeAttributeTest
{
private HttpBasicAuthorizeAttribute ClassUnderTest { get; set; }
private HttpActionContext actionContext { get; set; }
[TestMethod]
public void HttpBasicAuthorizeAttribute_OnAuthorize_WithAuthorizedUser_ReturnsAuthorization()
{
var context = new Mock<HttpActionContext>();
context.Setup(x => x.Request.Headers.Authorization.Parameter).Returns("bzUwkDal=");
ClassUnderTest.OnAuthorization(context);
}
[TestInitialize]
public void Initialize()
{
ClassUnderTest = new HttpBasicAuthorizeAttribute();
actionContext = new HttpActionContext();
}
}
*省略斷言,直到我甚至可以讓HttpActionContext工作
您可以使用實際對象並將其提供給模擬,以便將測試中的方法作為Moq運行,無法模擬非虛擬成員。
[TestMethod]
public void HttpBasicAuthorizeAttribute_OnAuthorize_WithAuthorizedUser_ReturnsAuthorization() {
//Arrange
var context = new HttpActionContext();
var headerValue = new AuthenticationHeaderValue("Basic", "bzUwkDal=");
var request = new HttpRequestMessage();
request.Headers.Authorization = headerValue;
var controllerContext = new HttpControllerContext();
controllerContext.Request = request;
context.ControllerContext = controllerContext;
//Act
ClassUnderTest.OnAuthorization(context);
//Assert
//...
}
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