public void MockUrlHelper()
{
//Arrange
var requestUrl = new Uri("http://myrequesturl");
var request = Mock.Of <HttpRequestBase>();
var requestMock = Mock.Get(request);
requestMock.Setup(m => m.Url).Returns(requestUrl);
var httpcontext = Mock.Of <HttpContextBase>();
var httpcontextSetup = Mock.Get(httpcontext);
httpcontextSetup.Setup(m => m.Request).Returns(request);
var actionName = "MyTargetActionName";
var expectedUrl = "http://myfakeactionurl.com";
var mockUrlHelper = new Mock <UrlHelper>();
mockUrlHelper
.Setup(m => m.Action(actionName, "Register", It.IsAny <object>(), It.IsAny <string>()))
.Returns(expectedUrl)
.Verifiable();
var sut = new MyController();
sut.Url = mockUrlHelper.Object;
sut.ControllerContext = new ControllerContext {
Controller = sut,
HttpContext = httpcontext,
};
//Act
var result = sut.MyAction();
//Assert
mockUrlHelper.Verify();
}