public void GetVisitor_ExistingVisitor_ExpectVisitor()
        {
            HttpClient httpClient    = HttpClientMockHelper.GetMockedHttpClient(JsonConvert.SerializeObject(new VisitorDto()));
            var        visitorClient = new VisitorClient(httpClient);

            var result = visitorClient.GetVisitor(Guid.NewGuid());

            Assert.NotNull(result);
        }
        public void GetVisitor_NoVisitor_ExpectNull()
        {
            HttpClient httpClient    = HttpClientMockHelper.GetMockedHttpClient(JsonConvert.SerializeObject(""), System.Net.HttpStatusCode.NotFound);
            var        visitorClient = new VisitorClient(httpClient);

            var result = visitorClient.GetVisitor(Guid.NewGuid());

            Assert.Null(result);
        }