public async Task CreateJson_Valid()
        {
            // Setup
            var controller = CreateController();
            var model      = new MockJsonModel().Valid();

            RendererShouldReturn <object>(defaultSuccessReturnData);

            // Perform
            var response = await controller.Json(model);

            // Assert
            AssertIsOk(response);
        }
        public async Task CreateJson_Invalid()
        {
            // Setup
            var controller = CreateController();
            var model      = new MockJsonModel().Invalid();

            RendererShouldReturn <object>();

            // Perform
            var response = await controller.Json(model);

            // Assert
            AssertIsBadRequest(response);
        }