private async void When_the_document_is_posted_as_right_side_diff()
        {
            var content      = new StringContent(_documentOnBase64, Encoding.ASCII, "text/json");
            var scenarioBase = new JsonDifferScenarioBase();

            _response = await scenarioBase.CreateServer().CreateClient()
                        .PostAsync(Post.DiffRight(_id), content);
        }
        private void Given_a_diff_id(string id)
        {
            _id = id;
            var scenarioBase   = new JsonDifferScenarioBase();
            var webHostBuilder = BuildWebHost();

            _service    = scenarioBase.CreateServer(webHostBuilder);
            _collection = _service.Host.Services.GetService <ICollection <DiffJson> >();
        }