public void BrowserUtilityTest()
        {
            var userAgent       = "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36";
            var mockHttpRequest = new Mock <HttpRequest>();

            mockHttpRequest.Setup(z => z.Headers["User-Agent"])
            .Returns(userAgent);

            var result = BrowserUtility.GetUserAgent(mockHttpRequest.Object);

            Console.WriteLine(result);

            Assert.AreEqual(userAgent, result, true);
        }