[NSubstitute] HttpContext Mock

        
            // arrange
            var contextMock = Substitute.For();
            var requestMock = Substitute.For();
            var queryString = new NameValueCollection();
            queryString["foo"] = "bar";
            requestMock.QueryString.Returns(queryString);
            contextMock.Request.Returns(requestMock);
            var sut = new SomeController();
            sut.ControllerContext = new ControllerContext(contextMock, new RouteData(), sut);