public void CompareFileFromServer()
        {
            string path   = $"{AppDomain.CurrentDomain.BaseDirectory}\\TestFile\\testfile.docx";
            string base64 = CommonHelper.GetBase64FormPath(path);

            var requestParams = new NameValueCollection
            {
                { "Base64Str", base64 },
                { "Docid", TestData.fileId },
                { "TokenId", TestData.access_token },
                { "Rev", "" }
            };

            var context = new Mock <ControllerContext>();

            context.SetupGet(x => x.HttpContext.Request.Form).Returns(requestParams);

            var controller = new WordController()
            {
                ControllerContext = context.Object
            };
            JsonResult result = controller.CompareFileFromServer();

            Assert.IsNotNull(result.Data);
        }